ORCID Profile
0000-0002-2761-880X
Current Organisation
Monash University
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Research Topics
In Research Link Australia (RLA), "Research Topics" refer to ANZSRC FOR and SEO codes. These topics are either sourced from ANZSRC FOR and SEO codes listed in researchers' related grants or generated by a large language model (LLM) based on their publications.
Top 5 Research Topics
ANZSRC Field of Research (FoR)
Membrane and Separation Technologies | Chemical Engineering | Non-automotive Combustion and Fuel Engineering (incl. Alternative/Renewable Fuels) | Chemical and thermal processes in energy and combustion | Materials Engineering | Waste management reduction reuse and recycling | Chemical engineering | Renewable Power and Energy Systems Engineering (excl. Solar Cells) | Mineralogy and Crystallography | Catalytic Process Engineering | Carbon Capture Engineering (excl. Sequestration) | Food Chemistry and Molecular Gastronomy (excl. Wine) | Structural Biology (incl. Macromolecular Modelling) | Other Chemical Sciences | Functional Materials | Combustion And Fuel Engineering | Polymers and Plastics | Metals and Alloy Materials | Powder and particle technology | Chemical engineering design | Bioinorganic Chemistry | Bio-Remediation | Structural Chemistry and Spectroscopy | Chemotherapy | Inorganic Geochemistry | Industrial Chemistry | Nanomaterials | Medical Biochemistry and Metabolomics | Chemical Engineering not elsewhere classified | Soil Chemistry (excl. Carbon Sequestration Science) | Crop and Pasture Biochemistry and Physiology | Medical Biochemistry: Proteins and Peptides (incl. Medical Proteomics) | Medical Biochemistry: Inorganic Elements and Compounds | Geology not elsewhere classified | Analytical Biochemistry | Atomic and Molecular Physics
ANZSRC Socio-Economic Objective (SEO)
Transformation of Coal into Gaseous Fuels | Biofuel (Biomass) Energy | Expanding Knowledge in the Physical Sciences | Expanding Knowledge in Engineering | Management of Liquid Waste from Mineral Resource Activities (excl. Water) | Management of Solid Waste from Energy Activities | Management of Solid Waste from Mineral Resource Activities | Management of Greenhouse Gas Emissions from Electricity Generation | Industry | Inorganic Industrial Chemicals | Organic Industrial Chemicals (excl. Resins, Rubber and Plastics) | Environmentally Sustainable Manufacturing not elsewhere classified | Production of Biofuels (Biomass) | Mining and Extraction of Precious (Noble) Metal Ores | Expanding Knowledge in History and Archaeology | Energy Transformation not elsewhere classified | Climate Change Mitigation Strategies | Coal—other purposes | Coal—electricity | Transformation of Coal into Liquid Fuels | Expanding Knowledge in the Medical and Health Sciences | Industrial Energy Conservation and Efficiency | Human Pharmaceutical Treatments (e.g. Antibiotics) | Expanding Knowledge in the Environmental Sciences | Expanding Knowledge in the Earth Sciences | Expanding Knowledge in the Chemical Sciences | Industrial Chemicals and Related Products not elsewhere classified | Expanding Knowledge in the Agricultural and Veterinary Sciences | Expanding Knowledge in the Biological Sciences |
Related Links
Publications
A Critical Review of Coal Demineralization and Its Implication on Understanding the Speciation of Organically Bound Metals and Submicrometer Mineral Grains in Coal
Publisher: American Chemical Society (ACS)
Date: 05-01-2011
DOI: 10.1021/EF1008192
Clarifying the influence of moisture on the ignition and combustion of wet Victorian brown coal in air-firing and oxy-fuel modes: Part 2: Contribution of gasification reaction to char oxidation rate
Publisher: Elsevier BV
Date: 10-2015
Influence of inherent moisture on the ignition and combustion of wet Victorian brown coal in air-firing and oxy-fuel modes: Part 1: The volatile ignition and flame propagation
Publisher: Elsevier BV
Date: 10-2015
Synchrotron-Based XANES Speciation of Chromium in the Oxy-Fuel Fly Ash Collected from Lab-Scale Drop-Tube Furnace
Publisher: American Chemical Society (ACS)
Date: 07-2011
DOI: 10.1021/ES200545E
Abstract: Speciation of chromium (Cr) in the fly ash collected from oxy-firing of Victorian brown coal has been reported for the first time to address the potential formation of toxic Cr(VI) and the variation of the quantities of Cr(III)-bearing species with flue gas composition. Synchrotron-based X-ray absorption near-edge structure (XANES) was employed for Cr speciation. Apart from a pure O(2)/CO(2) mixture (27/73, v/v) versus air, the O(2)/CO(2) mixtures doped with SO(2), HCl, and steam in idually or together to simulate real flue gas have also been tested. Under all of the conditions tested here, the fractions of Cr(VI) in the fly ashes are insignificant, constituting no more than 5% of the total Cr. The test of Cr-doped brown coal in pyrolysis further confirmed that the Cr(VI) formation preferentially occurred through a local oxidation of Cr(III) at the oxygen-containing functions sites within coal matrix, rather than through an oxidation by external bulk O(2). This reaction is also highly temperature-dependent and slower than the interaction between Cr(III) and other metals such as iron oxide. Increasing temperature to 1000 °C inhibited the oxidation of Cr(IIII) to Cr(VI). Shifting the combustion gas from air to O(2)/CO(2) exerted little effect on the Cr(VI) formation. Instead, the formation of iron chromite (FeCr(2)O(4)) was facilitated in O(2)/CO(2), probably due to a strong reducing microenvironment formed by the CO(2) gasification reaction within the char matrix. The accumulation of HCl in flue gas favored the vaporization of chromium as gaseous chloride/oxychloride, as expected. The coexistence of SO(2) inhibited this phenomenon by promoting the formation of sulfate. The presence of steam was even beneficial for the inhibition of water-soluble Cr sulfate through stabilizing the majority of Cr into alumino-silicate which is in the slagging phase.
In situ diagnostics of Victorian brown coal combustion in O 2/N2 and O2/CO2 mixtures in drop-tube furnace
Publisher: Elsevier BV
Date: 10-2010
Transformation of phosphorus during combustion of coal and sewage sludge and its contributions to PM10
Publisher: Elsevier BV
Date: 2007
Pilot-scale experimental and CFD modeling investigations of oxy-fuel combustion of Victorian brown coal
Publisher: Elsevier BV
Date: 03-2015
Characteristics of Ash Deposits in a Pulverized Lignite Coal-Fired Boiler and the Mass Flow of Major Ash-Forming Inorganic Elements
Publisher: American Chemical Society (ACS)
Date: 23-09-2013
DOI: 10.1021/EF400930E
Spatially isolating salt crystallisation from water evaporation for continuous solar steam generation and salt harvesting
Publisher: Royal Society of Chemistry (RSC)
Date: 2019
DOI: 10.1039/C9EE00692C
Abstract: Efficient solar steam generation and concurrent salt harvesting from saline water were achieved with both continuous operation and long-term stability.
Coal Waste to Two-Dimensional Materials: Fabrication of α-Fe2O3 Nanosheets and MgO Nanosheets from Brown Coal Fly Ash
Publisher: American Chemical Society (ACS)
Date: 14-11-2018
Speciation transformation of arsenic during municipal solid waste incineration
Publisher: Elsevier BV
Date: 2015
Inhibition of lignite ash slagging and fouling upon the use of a silica-based additive in an industrial pulverised coal-fired boiler: Part 3 - Partitioning of trace elements
Publisher: Elsevier BV
Date: 2015
Microporous polymer incorporated polyamide membrane for reverse osmosis desalination
Publisher: Elsevier BV
Date: 09-2020
Secondary reactions of volatiles upon the influences of particle temperature discrepancy and gas environment during the pyrolysis of scrap tyre chips
Publisher: Elsevier BV
Date: 2020
Generation of ultra-clean fuel from Victorian brown coal – Synchrotron XANES study on the evolution of sulphur in Victorian brown coal upon hydrothermal upgrading treatment and thermal pyrolysis
Publisher: Elsevier BV
Date: 09-2012
Accelerated alkaline activation of peroxydisulfate by reduced rubidium tungstate nanorods for enhanced degradation of bisphenol A
Publisher: Royal Society of Chemistry (RSC)
Date: 2020
DOI: 10.1039/D0EN00840K
Abstract: Reduced rubidium tungstate nanorods were employed to activate peroxydisulfate under alkaline conditions for bisphenol A degradation.
Waste to worth: A high-temperature water-gas shift magnetite catalyst with encapsulated core-shell structure from coal fly ash
Publisher: Elsevier BV
Date: 07-2022
Indirect Carbonation of Victorian Brown Coal Fly Ash for CO2 Sequestration: Multiple-Cycle Leaching-Carbonation and Magnesium Leaching Kinetic Modeling
Publisher: American Chemical Society (ACS)
Date: 23-09-2014
DOI: 10.1021/EF5014314
The chemical role of CO2 in pyrite thermal decomposition
Publisher: Elsevier BV
Date: 2015
Selective Removal of Sodium from Low-Rank Xinjiang Coal upon Multistage Countercurrent Water Washing: Experimental Investigation and Kinetics Modeling
Publisher: American Chemical Society (ACS)
Date: 27-02-2019
Kinetic Study of Long-Term T23 Tube Corrosion upon Low-Rank Coal Ash Deposition under Oxy-Fuel Combustion Conditions
Publisher: American Chemical Society (ACS)
Date: 23-09-2019
Acid hydrolysis of corn stover using hydrochloric acid: Kinetic modeling and statistical optimization,Kisela hidroliza kukuruzovine pomoĆu hlorovodoniČne kiseline: kinetiČko modelovanje i statistiČka optimizacija
Publisher: National Library of Serbia
Date: 2014
Abstract: The hydrolysis of corn stover using hydrochloric acid was studied. The kinetic parameters of the mathematical models for predicting the yields of xylose, glucose, furfural and acetic acid were obtained, and the corresponding xylose generation activation energy of 100 kJ/mol was determined. The characterization of corn stover using with different techniques during hydrolysis indicated an effective removal of xylan and the slightly alteration on the structures of cellulose and lignin. A 23five levels Central Composite Design (CCD) was used to develop a statistical model for the optimization of process variables including acid concentration, pretreatment temperature and time. The optimum conditions determined by this model were found to be 108?C for 80 minutes with acid concentration of 5.8%. Under these conditions, the maximised results are the following: xylose 19.93 g/L, glucose 1.2 g/L, furfural 1.5 g/L, acetic acid 1.3 g/L. The validation of the model indicates a good agreement between the experimental results and the predicted values.
Computational Fluid Dynamics Modeling on the Air-Firing and Oxy-fuel Combustion of Dried Victorian Brown Coal
Publisher: American Chemical Society (ACS)
Date: 18-07-2013
DOI: 10.1021/EF400032T
Selective deoxygenation of biomass volatiles into light oxygenates catalysed by S-doped, nanosized zinc-rich scrap tyre char with in-situ formed multiple acidic sites
Publisher: Elsevier BV
Date: 03-2021
Elution of Ti during solvent extraction of coal and the transformation of eluted Ti upon combustion
Publisher: Wiley
Date: 15-04-2008
DOI: 10.1002/AIC.11474
CCSEM analysis of ash from combustion of coal added with limestone
Publisher: Elsevier BV
Date: 07-2002
Characteristics of iron and sulphur in high-ash lignite (Pakistani lignite) and their influence on long-term T23 tube corrosion under super-critical coal-fired boiler conditions
Publisher: Elsevier BV
Date: 03-2020
Properties of water-soluble and insoluble particulate matter emitted from dewatered sewage sludge incineration in a pilot-scale ash melting furnace
Publisher: Elsevier BV
Date: 05-2008
Spatial distribution of Cr-bearing species on the corroded tube surface characterised by synchrotron X-ray fluorescence (SXRF) mapping and micro-XANES: exposure of tubes in oxy-firing flue gas
Publisher: Springer Science and Business Media LLC
Date: 21-05-2018
Noble-metal single-atoms in thermocatalysis, electrocatalysis, and photocatalysis
Publisher: Royal Society of Chemistry (RSC)
Date: 2021
DOI: 10.1039/D1EE00247C
Abstract: This review summarizes the recent advances about noble-metal single-atom catalysts in thermocatalysis, electrocatalysis, and photocatalysis.
A review of nano-carbon based molecularly imprinted polymer adsorbents and their adsorption mechanism
Publisher: Elsevier BV
Date: 09-2020
Combustibility of dried sewage sludge and its mineral transformation at different oxygen content in drop tube furnace
Publisher: Elsevier BV
Date: 07-2004
Influence of woody biomass (cedar chip) addition on the emissions of PM10 from pulverised coal combustion
Publisher: Elsevier BV
Date: 2011
Arsenic emissions and speciation in the oxy-fuel fly ash collected from lab-scale drop-tube furnace
Publisher: Elsevier BV
Date: 2013
Simulation Model for Combustion of Dehydration Sludge in an Ash-Melting Furnace Using Oxygen Enrichment
Publisher: The Japan Institute of Energy
Date: 2006
DOI: 10.3775/JIE.85.762
Tuning hydrogenation chemistry of Pd-based heterogeneous catalysts by introducing homogeneous-like ligands
Publisher: Springer Science and Business Media LLC
Date: 04-07-2023
DOI: 10.1038/S41467-023-39478-2
Abstract: Noble metals have been extensively employed in a variety of hydrotreating catalyst systems for their featured functionality of hydrogen activation but may also bring side reactions such as undesired deep hydrogenation. It is crucial to develop a viable approach to selectively inhibit side reactions while preserving beneficial functionalities. Herein, we present modifying Pd with alkenyl-type ligands that forms homogeneous-like Pd-alkene metallacycle structure on the heterogeneous Pd catalyst to achieve the selective hydrogenolysis and hydrogenation. Particularly, a doped alkenyl-type carbon ligand on Pd-Fe catalyst is demonstrated to donate electrons to Pd, creating an electron-rich environment that elongates the distance and weakens the electronic interaction between Pd and unsaturated C of the reactants roducts to control the hydrogenation chemistry. Moreover, high H 2 activation capability is maintained over Pd and the activated H is transferred to Fe to facilitate C-O bond cleavage or directly participate in the reaction on Pd. The modified Pd-Fe catalyst displays comparable C-O bond cleavage rate but much higher selectivity ( %) than the bare Pd-Fe ( %) in hydrotreating of diphenyl ether (DPE, modelling the strongest C-O linkage in lignin) and enhanced ethene selectivity ( %) in acetylene hydrogenation. This work sheds light on the controlled synthesis of selective hydrotreating catalysts via mimicking homogeneous analogues.
Robust Hilly Polyamide Membrane for Fast Desalination
Publisher: American Chemical Society (ACS)
Date: 19-01-2021
Behavior of Heavy Metals during Fluidized Bed Combustion of Poultry Litter
Publisher: American Chemical Society (ACS)
Date: 14-07-2014
DOI: 10.1021/EF500981K
Oxygen vacant Co3O4in situ embedded on carbon spheres: cooperatively tuning electron transfer for boosted peroxymonosulfate activation
Publisher: Royal Society of Chemistry (RSC)
Date: 2021
DOI: 10.1039/D1TA03963F
Abstract: An oxygen vacancy (V O )-rich Co 3 O 4 @carbon composite was employed to activate peroxymonosulfate for bisphenol A degradation.
Effect of HCl, SO2 and H2O on the condensation of heavy metal vapors in flue gas cooling section
Publisher: Elsevier BV
Date: 2013
Condensation Behavior of Heavy Metal Vapors upon Flue Gas Cooling in Oxy-fuel versus Air Combustion
Publisher: Informa UK Limited
Date: 2015
DOI: 10.1252/JCEJ.14WE224
Numerical Modeling and Experimental Investigation on the Use of Brown Coal and Its Beneficiated Semicoke for Coal Blending Combustion in a 600 MWe Utility Furnace
Publisher: American Chemical Society (ACS)
Date: 20-01-2015
DOI: 10.1021/EF502287C
A detailed speciation of iron on FCC catalysts based on an integrated use of advanced characterisation methods and thermodynamic equilibrium simulation
Publisher: Elsevier BV
Date: 06-2020
Experimental investigation of the combustion of bituminous coal in air and O2/CO2 mixtures: 1. Particle imaging of the combustion of coal and char
Publisher: American Chemical Society (ACS)
Date: 31-08-2010
DOI: 10.1021/EF100314K
Pyrohydrolysis of CaCl2 Waste for the Recovery of HCl Acid upon the Synergistic Effects from MgCl2 and Silica
Publisher: American Chemical Society (ACS)
Date: 03-01-2019
Experimental study on ash melting behavior of Xinjiang high-alkali coal blended with low-alkali coal during coal combustion
Publisher: Springer Singapore
Date: 2016
High-Efficiency Electrosynthesis of Hydrogen Peroxide from Oxygen Reduction Enabled by a Tungsten Single Atom Catalyst with Unique Terdentate N1O2 Coordination
Publisher: Wiley
Date: 31-12-2022
Abstract: Single‐atom catalysts (SACs) have shown great potential in the electrochemical oxygen reduction reaction (ORR) toward hydrogen peroxide (H 2 O 2 ) production. However, current studies are mainly focused on 3d transition‐metal SACs, and very little attention has been paid to 5d SACs. Here, a new kind of W SAC anchored on a porous O, N‐doped carbon nanosheet (W 1 /NO‐C) is designed and prepared via a simple coordination polymer‐pyrolysis method. A unique local structure of W SAC, terdentate W 1 N 1 O 2 with the coordination of two O atoms and one N atom, is identified by the combination of aberration‐corrected scanning transmission electron microscopy, X‐ray photoelectron spectroscopy and X‐ray absorption fine structure spectroscopy. Remarkably, the as‐prepared W 1 /NO‐C catalyzes the ORR via a 2e – pathway with high onset potential, high H 2 O 2 selectivity in the wide potential range, and excellent operation durability in 0.1 m KOH solution, superior to most of state‐of‐the‐art H 2 O 2 electrocatalysts ever reported. Theoretical calculations reveal that the C atoms adjacent to O in the W 1 N 1 O 2 ‐C moiety are the most active sites for the 2e – ORR to H 2 O 2 with the optimal binding energy of the HOO* intermediate. This work opens up a new opportunity for the development of high‐performance W‐based catalysts for electrochemical H 2 O 2 production.
Influence of coal particle size on particulate matter emission and its chemical species produced during coal combustion
Publisher: Elsevier BV
Date: 07-2004
HCN and NH3 formation during coal/char gasification in the presence of NO
Publisher: American Chemical Society (ACS)
Date: 15-05-2010
DOI: 10.1021/ES1001538
Abstract: Understanding the conversion of coal-N during gasification is an important part of the development of gasification-based power generation technologies to reduce NO(x) emissions from coal utilization. This study investigated the conversion of coal-N in the presence of NO during the gasification of three rank-ordered coals and their chars in steam and low-concentration O(2). Our results show that NO can be incorporated into the char structure during gasification. The inherent char-N and the N incorporated into the char from NO-char reactions behave very similarly during gasification. During the gasification in steam, significant amounts of HCN and NH(3) can be formed from the incorporated N structure in char, especially for the relatively "aged" chars, mainly due to the availability of abundant H radicals on the char surface during the gasification in steam. During the gasification in 2000 ppm O(2), the formation of HCN or NH(3) from the N structures in char, including those incorporated into the char from the NO-char reactions, was not a favored route of reaction mainly due to the lack of H on char surface in the presence of O(2).
Modulating mesoporous Co3O4 hollow nanospheres with oxygen vacancies for highly efficient peroxymonosulfate activation
Publisher: Elsevier BV
Date: 11-2020
Process modeling and techno-economic analysis of a solar thermal aided low-rank coal drying-pyrolysis process
Publisher: Elsevier BV
Date: 09-2021
Investigation of a direct melting dehydrated sewage sludge pilot plant
Publisher: Inderscience Publishers
Date: 2007
Analysis of Sensitivity and Optimization Potential for Oxy-Fuel Plant System
Publisher: Springer Singapore
Date: 2016
Emission of suspended PM10 from laboratory-scale coal combustion and its correlation with coal mineral properties
Publisher: Elsevier BV
Date: 2006
The slagging propensity of Zn-rich scrap tyre ash in reducing environments consisting of CO and CO2 and its promotion of the slagging of Si-rich coal ash
Publisher: Elsevier BV
Date: 2021
Computer-Controlled Scanning Electron Microscopy (CCSEM) Investigation on the Heterogeneous Nature of Mineral Matter in Six Typical Chinese Coals
Publisher: American Chemical Society (ACS)
Date: 24-12-2006
DOI: 10.1021/EF060419W
Use of Synchrotron XANES and Cr-Doped Coal to Further Confirm the Vaporization of Organically Bound Cr and the Formation of Chromium(VI) During Coal Oxy-Fuel Combustion
Publisher: American Chemical Society (ACS)
Date: 07-03-2012
DOI: 10.1021/ES204255H
Abstract: Through the use of synchrotron XANES and Cr-doped brown coal, extensive efforts have been made to clarify the volatility of organically bound Cr during oxy-fuel combustion and the mode of occurrence and leachability of Cr in resulting fly ashes. As the continuation of our previous study using raw coal, the Cr-doped coal has been tested in this study to improve the signal-to-noise ratio for Cr K-edge XANES spectra, and hence the accuracy for Cr(VI) quantification. As has been confirmed, the abundant CO(2) as a balance gas for oxy-firing has the potential to inhibit the decomposition of organically bound Cr, thereby favoring its retention in solid ash. It also has the potential to promote the oxidation of Cr(III) to Cr(VI) to a minor extent. Increasing the oxygen partial pressure, particularly in the coexistence of HCl in flue gas, favored the oxidation of Cr(III) into gaseous Cr(VI)-bearing species such as CrO(2)Cl(2). Regarding the solid impurities including Na(2)SO(4) and CaO, Na(2)SO(4) has proven to preferentially capture the Cr(III)-bearing species at a low furnace temperature such as 600 °C. Its promoting effect on the oxidation of Cr(III) to Cr(VI), although thermodynamically available at the temperatures examined here, is negligible in a lab-scale drop tube furnace (DTF), where the particle residence time is extremely short. In contrast, CaO has proven facilitating the capture of Cr(VI)-bearing species particularly oxychloride vapors at 1000 °C, forming Ca chromate with the formulas of CaCrO(4) and Ca(3)(CrO(4))(2) via a direction stabilization of Cr(VI) oxychloride vapor by CaO particle or an indirect oxidation of Cr(III) via the initial formation of Ca chromite. The fly ash collected from the combustion of Cr-doped coal alone has a lower water solubility (i.e., 58.7%) for its Cr(VI) species, due to the formation of Ba/Pb chromate and/or the incorporation of Cr(VI) vapor into a slagging phase which is water-insoluble. Adding CaO to coal increased the water-solubility of both Cr(VI) and Cr(III) by forming Ca chromite and chromate, respectively.
Catalytic performance of scrap tyre char for the upgrading of eucalyptus pyrolysis derived bio-oil via cracking and deoxygenation
Publisher: Elsevier BV
Date: 05-2019
High-speed camera observation of coal combustion in air and O 2 /CO2 mixtures and measurement of burning coal particle velocity
Publisher: American Chemical Society (ACS)
Date: 21-01-2010
DOI: 10.1021/EF900463R
Fate of Alkali Elements during Pyrolysis and Combustion of Chinese Coals.
Publisher: Informa UK Limited
Date: 2003
DOI: 10.1252/JCEJ.36.759
Influence of External Clay and Inherent Minerals on Lignite Optical Ignition and Volatile Flame Propagation in Air-Firing and Oxy-Firing
Publisher: American Chemical Society (ACS)
Date: 05-02-2014
DOI: 10.1021/IE402600P
Inhibition of lignite ash slagging and fouling upon the use of a silica-based additive in an industrial pulverised coal-fired boiler: Part 2. Speciation of iron in ash deposits and separation of magnetite and ferrite
Publisher: Elsevier BV
Date: 2015
Sequential Leaching of Coal to Investigate the Elution of Inorganic Elements Into Coal Extract (HyperCoal)
Publisher: American Chemical Society (ACS)
Date: 12-06-2008
DOI: 10.1021/EF800127G
Mineral interactions and their impacts on the reduction of PM10 emissions during co-combustion of coal with sewage sludge
Publisher: Elsevier BV
Date: 2009
Evolution of organically bound metals during coal combustion in air and O2/CO2 mixtures: A case study of Victorian brown coal
Publisher: Elsevier BV
Date: 2011
RuCo alloy bimodal nanoparticles embedded in N-doped carbon: a superior pH-universal electrocatalyst outperforms benchmark Pt for the hydrogen evolution reaction
Publisher: Royal Society of Chemistry (RSC)
Date: 2020
DOI: 10.1039/D0TA04491A
Abstract: Benefiting from the unique structure and composition, a superior hybrid composed of RuCo alloy bimodal nanoparticles embedded in N-doped carbon exhibits exceptional HER activities in all pH conditions, outperforming the benchmark Pt/C catalyst.
Elucidating the mechanism of Cr(VI) formation upon the interaction with metal oxides during coal oxy-fuel combustion
Publisher: Elsevier BV
Date: 10-2013
DOI: 10.1016/J.JHAZMAT.2013.07.023
Abstract: The thermodynamics underpinning the interaction of Cr-bearing species with basic metal oxides, i.e. K2O, Fe2O3, MgO and CaO, during the air and oxy-fuel combustion of coal have been examined. The synchrotron-based X-ray adsorption near-edge spectroscopy (XANES) was used for Cr speciation. For the oxides tested, Cr(VI) formation is dominated by the reduction potential of the metals. The oxides of Ca(2+) with high reduction potential favored the oxidation of Cr(III), same for K(+). The other two basic metals, Fe2O3 and MgO with lower reduction potentials reacted with Cr(III) to form the corresponding chromites at the temperatures above 600°C. Coal combustion experiments in drop-tube furnace have confirmed the rapid capture of Cr vapors, either trivalent or hexavalent, by CaO into solid ash. The existence of HCl in flue gas favored the vaporization of Cr as CrO2Cl2, which was in turn captured by CaO into chromate. Both Fe2O3 and MgO exhibited less capability on scavenging the Cr(VI) vapor. Particularly, MgO alone exhibited a low capability for capturing the vaporized Cr(III) vapors. However, its co-existence with CaO in the furnace inhibited the Cr(VI) formation. This is beneficial for minimizing the toxicity of Cr in the coal combustion-derived fly ash.
Experimental investigation of the combustion of bituminous coal in air and O2/CO2 mixtures: 2. Variation of the transformation behaviour of mineral matter with bulk gas composition
Publisher: Elsevier BV
Date: 04-2011
Hydrogen Production from a Victorian Brown Coal with in Situ CO2 Capture in a 1 kWth Dual Fluidized-Bed Gasification Reactor
Publisher: American Chemical Society (ACS)
Date: 25-09-2012
DOI: 10.1021/IE300747M
Occurrence of Inorganic Elements in Condensed Volatile Matter Emitted from Coal Pyrolysis and Their Contributions to the Formation of Ultrafine Particulates during Coal Combustion
Publisher: American Chemical Society (ACS)
Date: 04-05-2006
DOI: 10.1021/EF050429H
Techno-economic analysis of gasification routes for ammonia production from Victorian brown coal
Publisher: Elsevier BV
Date: 10-2015
Combustion and De–SO behavior of high-sulfur coals added with calcium acetate produced from biomass pyroligneous acid
Publisher: Elsevier BV
Date: 11-2004
Ash Agglomeration and Deposition during Combustion of Poultry Litter in a Bubbling Fluidized-Bed Combustor
Publisher: American Chemical Society (ACS)
Date: 12-07-2013
DOI: 10.1021/EF400744U
Sensitivity analysis of oxy-fuel power plant system
Publisher: Elsevier BV
Date: 07-2015
A critical review of ash slagging mechanisms and viscosity measurement for low-rank coal and bio-slags
Publisher: Springer Science and Business Media LLC
Date: 26-04-2020
Critical Review on the Chemical Reaction Pathways Underpinning the Primary Decomposition Behavior of Chlorine-Bearing Compounds under Simulated Municipal Solid Waste Incineration Conditions
Publisher: American Chemical Society (ACS)
Date: 09-12-2019
Partitioning of Boron during the Generation of Ultraclean Fuel (HyperCoal) by Solvent Extraction of Coal
Publisher: American Chemical Society (ACS)
Date: 16-02-2008
DOI: 10.1021/EF700610B
An investigation of the causes of the difference in coal particle ignition temperature between combustion in air and in O2 /CO2
Publisher: Elsevier BV
Date: 11-2010
Synchrotron X-ray absorption spectroscopy study of the evolution of chlorine during the pyro-hydrolysis of calcium and magnesium chloride waste
Publisher: Elsevier BV
Date: 02-2021
Effects of HCl, SO2 and H2O in flue gas on the condensation behavior of Pb and Cd vapors in the cooling section of municipal solid waste incineration
Publisher: Elsevier BV
Date: 2011
Effect of inorganic particulates on the condensation behavior of lead and zinc vapors upon flue gas cooling
Publisher: Elsevier BV
Date: 2013
Chromium Reaction Mechanisms for Speciation using Synchrotron in-Situ High-Temperature X-ray Diffraction
Publisher: American Chemical Society (ACS)
Date: 09-06-2015
Abstract: We use in situ high-temperature X-ray diffraction (HT-XRD), ex-situ XRD and synchrotron X-ray absorption near edge structure spectroscopy (XANES) to derive fundamental insights into mechanisms of chromium oxidation during combustion of solid fuels. To mimic the real combustion environment, mixtures of pure eskolaite (Cr(3+)2O3), lime (CaO) and/or kaolinite [Al2Si2O5(OH)4] have been annealed at 600-1200 °C in air versus 1% O2 diluted by N2. Our results confirm for the first time that (1) the optimum temperature for Cr(6+) formation is 800 °C for the coexistence of lime and eskolaite (2) upon addition of kaolinite into oxide mixture, the temperature required to produce chromatite shifts to 1000 °C with a remarkable reduction in the fraction of Cr(6+). Beyond 1000 °C, transient phases are formed that bear Cr in intermediate valence states, which convert to different species other than Cr(6+) in the cooling stage (3) of significance to Cr mobility from the waste products generated by combustion, chromatite formed at >1000 °C has a glassy disposition that prevents its water-based leaching and (4) Increasing temperature facilitates the migration of eskolaite particles into bulk lime and enhances the extent to which Cr(3+) is oxidized, thereby completing the oxidation of Cr(3+) to Cr(6+) within 10 min.
Waste tyre char-catalysed in-situ deoxygenation of volatile vapours and production of hydrogen-rich syngas during the pyrolysis of lignite
Publisher: Elsevier BV
Date: 07-2013
Interactions among Inherent Minerals during Coal Combustion and Their Impacts on the Emission of PM10. 2. Emission of Submicrometer-Sized Particles
Publisher: American Chemical Society (ACS)
Date: 23-01-2007
DOI: 10.1021/EF060308X
Xinjiang lignite ash slagging and flowability under the weak reducing environment at 1300 °C – A new method to quantify slag flow velocity and its correlation with slag properties
Publisher: Elsevier BV
Date: 03-2018
Formation of submicron particulate matter (PM1) during coal combustion and influence of reaction temperature
Publisher: Elsevier BV
Date: 07-2006
Effect of magnesium additives on PM2.5 reduction during pulverized coal combustion
Publisher: Elsevier BV
Date: 2013
Synthesis of (111) facet-engineered MgO nanosheet from coal fly ash and its superior catalytic performance for high-temperature water gas shift reaction
Publisher: Elsevier BV
Date: 05-2021
Photo-switchable imprinted adsorbent towards a selective phenol recovery from wastewater
Publisher: Elsevier BV
Date: 10-2021
A sunlight-responsive metal–organic framework system for sustainable water desalination
Publisher: Springer Science and Business Media LLC
Date: 10-08-2020
In situ desulfurization during combustion of high-sulfur coals added with sulfur capture sorbents
Publisher: Elsevier BV
Date: 02-2003
Influence of coke heterogeneity and the interaction between different coke species on the emission of toxic HCN and NOx from FCC spent catalyst regeneration
Publisher: Elsevier BV
Date: 08-2022
DOI: 10.1016/J.JHAZMAT.2022.129187
Abstract: Concerning the emissions of hydrogen cyanide (HCN) and other N-bearing air pollutants from the fluid catalytic cracking (FCC) regeneration units, this paper has conducted a comprehensive testing and surface characterisation of four industrial spent catalysts, aged catalysts and hard coke s le in three different schemes, Ar-TPD, O
Preparation of carbon sphere from lactose by hydrothermal reaction and its performance in gas separation
Publisher: Wiley
Date: 02-09-2014
DOI: 10.1002/EP.11828
Transformation of mineral and emission of particulate matters during co-combustion of coal with sewage sludge
Publisher: Elsevier BV
Date: 04-2004
Generation of ultra-clean coal from Victorian brown coal — Sequential and single leaching at room temperature to elucidate the elution of individual inorganic elements
Publisher: Elsevier BV
Date: 11-2011
Can CO2 and Steam React in the Absence of Electrolysis at High Temperatures?
Publisher: Wiley
Date: 22-10-2020
Partitioning of sulfur and calcium during pyrolysis and combustion of high sulfur coals impregnated with calcium acetate as the desulfurization sorbent
Publisher: Elsevier BV
Date: 05-2004
Elucidating the synergistic interaction and reaction pathway between the individual lignocellulosic components during flash pyrolysis
Publisher: Elsevier BV
Date: 03-2022
An enhanced approach for biochar preparation using fluidized bed and its application for H2 S removal
Publisher: Elsevier BV
Date: 06-2016
Kinetics underpinning the C-CO2 gasification of waste tyre char and its interaction with coal char upon co-gasification
Publisher: Elsevier BV
Date: 11-2019
Characteristics of slag, fly ash and deposited particles during melting of dewatered sewage sludge in a pilot plant
Publisher: Elsevier BV
Date: 04-2006
DOI: 10.1016/J.JENVMAN.2005.06.006
Abstract: This study examines slag, fly ash, and deposited particles during melting of dewatered sewage sludge in a pilot plant. In addition, the chemical composition of particles in flue gas was simulated using a thermodynamics program, namely FACTSage 5.2. The results showed that the main components of slag were Al, Fe, Ca, P and Si the minor components were Na, K, Mg, Cu, and Zn. The main chemical compound of slag was Ca4(Mg,Fe)5(PO4)6. For fly ash particles, heavy metals with the highest concentrations were in the order of Zn and As, Pb, Cu, and Cd, respectively. For non-heavy metals, Al, Fe and P were also found in significant amounts. The majority of deposited particles were composed of elements of Zn, P, S, Na, Fe, Al, Si, and Ca and such chemical compounds as Zn3(PO4)2, AlPO4, FePO4 and Fe(OH)3 while the minority consisted of elements of As, Cu, and Pb. Moreover, the compositions of deposited particles in each chamber differed due to different flue gas temperatures inside. In the secondary chamber at 760 degrees C, the amounts of Fe and Al were higher than Zn, whereas, in the other chambers (600-400 degrees C), the amount of Zn was higher. In other words, at the lower temperature the deposition of Zn was higher than the deposition of Fe and Al. In the water cooling section, volatile elements (i.e. Zn, As, Cu, Pb) were found in the highest concentrations due to a big difference in temperature between the wall surface and flue gas. From the simulation results, most of the elements in the gas phase were found to be chloride compounds, whereas those in the solid phase were in the form of oxide, sulfate, and phosphate compounds.
Coordination structures of organically bound paramagnetic metals in coal and their transformation upon solvent extraction
Publisher: Elsevier BV
Date: 09-2008
Sequestration of carbon dioxide by indirect mineralization using Victorian brown coal fly ash
Publisher: Elsevier BV
Date: 03-2012
DOI: 10.1016/J.JHAZMAT.2012.01.053
Abstract: The use of an industry waste, brown coal fly ash collected from the Latrobe Valley, Victoria, Australia, has been tested for the post-combustion CO(2) capture through indirect minersalization in acetic acid leachate. Upon the initial leaching, the majority of calcium and magnesium in fly ash were dissolved into solution, the carbonation potential of which was investigated subsequently through the use of a continuously stirred high-pressure autoclave reactor and the characterization of carbonation precipitates by various facilities. A large CO(2) capture capacity of fly ash under mild conditions has been confirmed. The CO(2) was fixed in both carbonate precipitates and water-soluble bicarbonate, and the conversion between these two species was achievable at approximately 60°C and a CO(2) partial pressure above 3 bar. The kinetic analysis confirmed a fast reaction rate for the carbonation of the brown coal ash-derived leachate at a global activation energy of 12.7 kJ/mol. It is much lower than that for natural minerals and is also very close to the potassium carbonate iperazine system. The CO(2) capture capacity of this system has also proven to reach maximum 264 kg CO(2)/ton fly ash which is comparable to the natural minerals tested in the literature. As the fly ash is a valueless waste and requires no comminution prior to use, the technology developed here is highly efficient and energy-saving, the resulting carbonate products of which are invaluable for the use as additive to cement and in the paper and pulp industry.
Microwave digestion for the quantification of inorganic elements in coal and coal ash using ICP-OES
Publisher: Elsevier BV
Date: 11-2012
DOI: 10.1016/J.TALANTA.2012.09.037
Abstract: In this paper, microwave digestion conditions have been optimised to achieve complete recoveries for the ash-forming inorganic elements in coal and coal combustion fly ash, during the analysis by inductively coupled plasma optical emission spectroscopy (ICP-OES). The elements analysed include six major (Al, Ca, Fe, K, Mg and Na) and twelve trace (As, Ba, Be, Co, Cr, Cu, Li, Mn, Ni, Pb, Sr and V). Seven reference s les have been tested, including two standard coal references, SRM1632c and SARM19, their corresponding high-temperature ashes (HTAs), and three coal fly ash references, SRM1633c, SRM2690 and BCR38. The recoveries of in idual elements in these s les have been examined intensively, as a function of the amount of hydrofluoric acid (HF, 0-2.0 ml), microwave power (900 W vs. 1200 W) and s le mass (0.05 g vs. 0.1 g). As have been confirmed, the recoveries of these in idual elements varied significantly with the microwave digestion condition, elemental type and s le property. For the coal references and their HTAs, the use of HF can be ruled out for most of the elements, except K associated with feldspar, Pb and V. In particular, the recovery of Pb in coal is highly s le-specific and thus unpredictable. The majority of elements in fly ash references require the use of 0.1-0.2 ml HF for a complete recovery. Al in fly ash is the only exceptional element which gave incomplete recoveries throughout, suggesting the use of a complementary technique for its quantification. As has proven to be the only element inconsequential of s le type and digestion conditions, achieving complete recoveries for all cases. On the power parameter, using a higher power such as 1200 W is critical, which has proved to be an ultimatum for the recovery of certain elements, especially in fly ash. Halving s le mass from 0.1 g to 0.05 g was also found to be insignificant.
Influence of MgO content on bio-ash slagging propensity and flowability under mild reducing environment
Publisher: Elsevier BV
Date: 08-2022
Inhibition of lignite ash slagging and fouling upon the use of a silica-based additive in an industrial pulverised coal-fired boiler. Part 1. Changes on the properties of ash deposits along the furnace
Publisher: Elsevier BV
Date: 2015
Biodiesel production using calcium-based catalyst from venus shell: Modeling of startup production in an industrial reactor
Publisher: Wiley
Date: 05-10-2019
DOI: 10.1002/EP.13053
In-situ observation of the combustion of air-dried and wet Victorian brown coal
Publisher: Elsevier BV
Date: 2011
Establishing a novel and yet simple methodology based on the use of modified inclined plane (M-IP) for high-temperature slag viscosity measurement
Publisher: Elsevier BV
Date: 12-2018
Influence of biomass blends on the particle temperature and burnout characteristics during oxy-fuel co-combustion of coal
Publisher: Elsevier BV
Date: 02-2020
Non-Destructive Characterisation of Coke Deposit on FCC catalyst and its Transient Evolution upon Air-Firing and Oxy-Fuel Regeneration
Publisher: Elsevier BV
Date: 02-2021
Analysis of Coal Ash Build up on Ceramic Filters in a Hot Gas Filtration System
Publisher: The Japan Institute of Energy
Date: 2005
DOI: 10.3775/JIE.84.359
A study on the calcination and sulphation behaviour of limestone during oxy-fuel combustion
Publisher: Elsevier BV
Date: 12-2012
Mechanisms Underpinning the Mobilization of Iron and Magnesium Cations from Victorian Brown Coal Fly Ash
Publisher: American Chemical Society (ACS)
Date: 29-05-2014
DOI: 10.1021/EF500618R
Emission of organically bound elements during the pyrolysis and char oxidation of lignites in air and oxyfuel combustion mode
Publisher: American Chemical Society (ACS)
Date: 22-05-2014
DOI: 10.1021/EF5003777
Energy Evaluation and Techno-economic Analysis of Low-Rank Coal (Victorian Brown Coal) Utilization for the Production of Multi-products in a Drying–Pyrolysis Process
Publisher: American Chemical Society (ACS)
Date: 29-01-2018
Chemical and morphological changes of weathered Victorian brown coal fly ash and its leaching characteristic upon the leaching in ammonia chloride and hydrochloric acid
Publisher: Elsevier BV
Date: 10-2015
Effects of coal blending on the reduction of PM10 during high-temperature combustion 1. Mineral transformations
Publisher: Elsevier BV
Date: 10-2008
Characterization of combustion‐derived individual fine particulates by computer‐controlled scanning electron microscopy
Publisher: Wiley
Date: 22-09-2009
DOI: 10.1002/AIC.11922
Quantitative determination of nickel speciation for the presence of free oxide in commercial fluid catalytic cracking catalysts
Publisher: Elsevier BV
Date: 06-2022
Formation of Submicron Particulates (PM1) from the Oxygen-Enriched Combustion of Dried Sewage Sludge and Their Properties
Publisher: American Chemical Society (ACS)
Date: 29-11-2006
DOI: 10.1021/EF060024C
Effect of coal blending on the leaching characteristics of arsenic in fly ash from fluidized bed coal combustion
Publisher: Elsevier BV
Date: 02-2013
Furfural production from biomass residues: Current technologies, challenges and future prospects
Publisher: Elsevier BV
Date: 06-2022
Effects of coal blending on the reduction of PM10 during high-temperature combustion 2. A coalescence-fragmentation model
Publisher: Elsevier BV
Date: 2009
XANES Investigation on Sulfur Evolution during Victorian Brown Coal Char Gasification in Oxy-Fuel Combustion Mode
Publisher: American Chemical Society (ACS)
Date: 25-07-2012
DOI: 10.1021/EF300804E
Interactions among Inherent Minerals during Coal Combustion and Their Impacts on the Emission of PM10. 1. Emission of Micrometer-Sized Particles
Publisher: American Chemical Society (ACS)
Date: 23-01-2007
DOI: 10.1021/EF0603075
Occurrence of Calcium and Magnesium in the Ash from Zhundong Coal Combustion: Emphasis on Their Close Juxtaposition
Publisher: American Chemical Society (ACS)
Date: 27-02-2019
Generation of Ultra-Clean Coal from Victorian Brown Coal: Effect of Hydrothermal Treatment and Particle Size on Coal Demineralization and the Extraction Kinetic of Individual Metals
Publisher: American Chemical Society (ACS)
Date: 17-07-2012
DOI: 10.1021/EF3005459
Investigating the Effect of the Mg2+/Ca2+ Molar Ratio on the Carbonate Speciation during the Mild Mineral Carbonation Process at Atmospheric Pressure
Publisher: American Chemical Society (ACS)
Date: 13-10-2015
Xinjiang lignite ash slagging and flow under the weak reducing environment at high temperatures – Slag viscosity and its variation with ash type and addition of clay
Publisher: Elsevier BV
Date: 06-2019
Ash partitioning during the oxy-fuel combustion of lignite and its dependence on the recirculation of flue gas impurities (H2 O, HCl and SO2 )
Publisher: Elsevier BV
Date: 06-2011
Synthesis of in-situ Al3+-defected iron oxide nanoflakes from coal ash: A detailed study on the structure, evolution mechanism and application to water remediation
Publisher: Elsevier BV
Date: 08-2020
Sintering Behavior of Coal Ash Build up on Ceramic Filters in a Hot Gas Filtration System
Publisher: The Japan Institute of Energy
Date: 2005
DOI: 10.3775/JIE.84.767
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