ORCID Profile
0000-0001-9659-6969
Current Organisations
University of Western Australia
,
Université Laval
Does something not look right? The information on this page has been harvested from data sources that may not be up to date. We continue to work with information providers to improve coverage and quality. To report an issue, use the Feedback Form.
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.
Chemical Engineering | Chemical Thermodynamics and Energetics | Process Control and Simulation | Membrane and Separation Technologies
Oil and Gas Refining | Management of Greenhouse Gas Emissions from Mineral Resource Activities | Expanding Knowledge in Engineering |
Publisher: American Chemical Society (ACS)
Date: 12-09-2023
Publisher: Royal Society of Chemistry (RSC)
Date: 2020
DOI: 10.1039/D0CP02002H
Abstract: We demonstrate how low-field NMR relaxation-exchange correlation measurements permit the non-invasive characterisation of methane exchange dynamics within microporous LTA zeolites.
Publisher: SAGE Publications
Date: 02-12-2020
DOI: 10.1002/PER.2274
Abstract: The purpose of the study was to examine longitudinally how intrinsic and extrinsic values develop during preadolescence within a mother-child context by comparing three different developmental pathways—direct value transmission, indirect value transmission, and value origination. Two hundred and thirty-three Korean mother—child dyads of late elementary students (M age = 11.4 years 55% girls) participated in a year-long online questionnaire survey. A longitudinal structural equation modelling analysis revealed two contrasting developmental pathways for intrinsic and extrinsic values in preadolescents. Intrinsic values developed via value origination, while extrinsic values developed via direct transmission. In other words, intrinsic values originated from the child's own inner psychological experiences and developed in accordance with changes in psychological needs satisfaction, whereas extrinsic values were transmitted from mothers in accordance with the degree to which they endorsed extrinsic values.
Publisher: Elsevier BV
Date: 08-2020
Publisher: Elsevier BV
Date: 09-2020
Publisher: Wiley
Date: 17-01-2022
DOI: 10.1002/AIC.17569
Abstract: Conventional pressure swing adsorption (PSA) processes can only produce one high purity product in a single stage, whereas the state‐of‐art dual‐reflux PSA (DR‐PSA) can produce two high purity products simultaneously. However, multicomponent gas separation is often required in the industry, targeting at recovering several valued products at the same time. In this study, we propose a novel adsorption process, namely triple‐reflux PSA (TR‐PSA), to separate three components simultaneously. A middle product outlet and a middle reflux stream were introduced to the adsorption columns of a conventional DR‐PSA process to separate ternary mixtures of nitrogen, methane, and helium. Nonisothermal dynamic models were built to investigate the impacts of operating parameters particularly the location of the middle reflux roduct stream and the middle reflux flow rates. Results showed that the TR‐PSA process successfully separated ternary mixtures obtaining three enriched products simultaneously in a single stage, yielding a separation performance comparable to that of the double‐stage DR‐PSA with significantly lower capital and energy cost.
Publisher: Wiley
Date: 08-03-2022
DOI: 10.1002/AIC.17668
Abstract: The separation of methane (CH 4 ) and nitrogen (N 2 ) is a significant challenge to the enrichment and utilization of low concentration CH 4 due to the similarity in the physical and chemical properties of the two molecules. In this work, we investigated the separation of CH 4 from N 2 using 100 kg of a new ionic liquidic zeolite (ILZ) material in a 6‐bed pilot‐scale pressure swing adsorption process. Feed gases with CH 4 concentrations of 5.0% and 16.1% were upgraded to 11.5% and 34.6%, respectively, with CH 4 recoveries higher than 80%. The pilot test results were used to anchor a numerical model that then allowed the efficient investigation of multiple operational parameters including desorption pressure and feed gas flow rates. The numerical model produced CH 4 concentrations for both product streams consistent with those measured in the pilot experiments, with root mean square deviations below 2%. The modeling results revealed that sufficiently low desorption pressures can unexpectedly lead to lower heavy product purities under limited feed gas flow conditions. Furthermore, the optimum feed gas flow rate under which maximum heavy product purity is achieved increases with lower desorption pressure. The maximum CH 4 concentrations increased from 31.8% to 41.5%, as desorption pressures decreased from 22.8 to 12.2 kPa for optimum feed flow rates between 78.2 and 105.5 mol/h. We also demonstrate a method of process optimization based on the bed capacity ratio, ℂ, which provides a scale‐independent measure of the degree to which the column is being used effectively. By varying feed flow rate and/or desorption pressure, ℂ values between 0.2 and 0.8 were explored, with maxima in the combined separation performance metric (methane recovery) × (methane purity) occurring for values of ℂ in the range 0.29–0.36. This separation performance optimization by adjusting ℂ provides an effective strategy for integrating and understanding the impact of multiple operating parameters.
Publisher: American Chemical Society (ACS)
Date: 12-2020
Publisher: Elsevier BV
Date: 08-2022
Publisher: American Chemical Society (ACS)
Date: 05-04-2020
Publisher: American Chemical Society (ACS)
Date: 15-12-2020
Publisher: Elsevier BV
Date: 02-2020
Publisher: American Chemical Society (ACS)
Date: 08-05-2020
Publisher: American Chemical Society (ACS)
Date: 28-04-2023
Publisher: American Chemical Society (ACS)
Date: 07-2019
Publisher: American Chemical Society (ACS)
Date: 13-09-2021
DOI: 10.1021/JACS.1C06230
Publisher: Springer Science and Business Media LLC
Date: 10-12-2020
DOI: 10.1038/S42004-020-00429-3
Abstract: “Breathing” and “gating” are striking phenomena exhibited by flexible metal-organic frameworks (MOFs) in which their pore structures transform upon external stimuli. These effects are often associated with eminent steps and hysteresis in sorption isotherms. Despite significant mechanistic studies, the accurate description of stepped isotherms and hysteresis remains a barrier to the promised applications of flexible MOFs in molecular sieving, storage and sensing. Here, we investigate the temperature dependence of structural transformations in three flexible MOFs and present a new isotherm model to consistently analyse the transition pressures and step widths. The transition pressure reduces exponentially with decreasing temperature as does the degree of hysteresis (c.f. capillary condensation). The MOF structural transition enthalpies range from +6 to +31 kJ·mol −1 revealing that the adsorption-triggered transition is entropically driven. Pressure swing adsorption process simulations based on flexible MOFs that utilise the model reveal how isotherm hysteresis can affect separation performance.
Publisher: Elsevier BV
Date: 10-2023
Location: Australia
Start Date: 02-2019
End Date: 04-2023
Amount: $646,000.00
Funder: Australian Research Council
View Funded Activity