Dynamic CFD Simulations and Scale-Up of Three-Phase Slurry Reactors for Gas-to-Liquid (GTL) Technology. The gas-liquid-solid flow patterns in three-phase slurry bubble column reactors will be studied using experiments and CFD. The effect of various reactor parameters will be studied to develop the scale-up heuristic for the slurry bubble column reactor. The Findings of this study will be used to optimise the reactor system for the offshore natural gas locations of Australia. A successful impleme ....Dynamic CFD Simulations and Scale-Up of Three-Phase Slurry Reactors for Gas-to-Liquid (GTL) Technology. The gas-liquid-solid flow patterns in three-phase slurry bubble column reactors will be studied using experiments and CFD. The effect of various reactor parameters will be studied to develop the scale-up heuristic for the slurry bubble column reactor. The Findings of this study will be used to optimise the reactor system for the offshore natural gas locations of Australia. A successful implementation of this project will bring a huge economic benefit to Australia by utilising the vast amount of remotely located and otherwise unusable stranded natural gas reserves. The project falls within one of National Research Priorities: An Environmentally Sustainable Australia.Read moreRead less
Dynamic Controllability Analysis for Plantwide Process Design and Control. World-wide chemical plants represent many billions of dollars of investment. Improvements to the process designs in terms of controllability would have the potential to provide large economic benefits, as it implies improved productivity, reduced operating costs and product variability. This proposed research will be a step towards integration of process design and control, which has been widely recognized as the key to t ....Dynamic Controllability Analysis for Plantwide Process Design and Control. World-wide chemical plants represent many billions of dollars of investment. Improvements to the process designs in terms of controllability would have the potential to provide large economic benefits, as it implies improved productivity, reduced operating costs and product variability. This proposed research will be a step towards integration of process design and control, which has been widely recognized as the key to this improvement. The outcomes from this project may be readily implemented in process design practice, and therefore have a direct impact to the Australian and world-wide process industries, helping to build a more efficient and environmental conscious Australian process industries.Read moreRead less
Low temperature carbothermal reduction of alumina. Australia is the world's largest producer of alumina and bauxite; and the aluminium industry is our second largest commodity exporter. This project targets the development of fundamentals of an advanced technology for aluminium production with advantages of low energy consumption, low production costs and being more environment-friendly. This frontier technology will enhance the competitiveness of the Australian aluminium industry and contribute ....Low temperature carbothermal reduction of alumina. Australia is the world's largest producer of alumina and bauxite; and the aluminium industry is our second largest commodity exporter. This project targets the development of fundamentals of an advanced technology for aluminium production with advantages of low energy consumption, low production costs and being more environment-friendly. This frontier technology will enhance the competitiveness of the Australian aluminium industry and contribute to making an environmentally sustainable Australia. The project will also provide high quality education to final year undergraduate students. The project will contribute to the theory of metallurgical processes, particularly to the gas-solid reactions in the reduction and carburisation processes. Read moreRead less
INVESTIGATION OF THE EFFECT OF ALLOYING ELEMENTS ON SHEAR BAND FORMATION DURING THE WARM ROLLING OF LOW CARBON AND INTERSTITIAL FREE STEELS. This proposal involves the application of three dimensional atom probe field ion microscopy and advanced transmission electron microscopy techniques to study the phenomena of precipitation and solute atoms' interactions with dislocations in warm rolled low carbon steels and interstitial free steels. It is intended to examine the effect of alloying addition ....INVESTIGATION OF THE EFFECT OF ALLOYING ELEMENTS ON SHEAR BAND FORMATION DURING THE WARM ROLLING OF LOW CARBON AND INTERSTITIAL FREE STEELS. This proposal involves the application of three dimensional atom probe field ion microscopy and advanced transmission electron microscopy techniques to study the phenomena of precipitation and solute atoms' interactions with dislocations in warm rolled low carbon steels and interstitial free steels. It is intended to examine the effect of alloying additions on in-grain shear bands formation, texture formation and formability of warm rolled and annealed low carbon steels. Ultimately, the project is concerned with developing of fundamental understanging of solute interactions which provide an improved basis for design of these economically significant steels.Read moreRead less
CO2 Utilisation for Energy Storage. This project aims to develop a novel technology that can convert carbon dioxide into useful products while storing intermittent renewable energy as green stable chemical energy. The project plans to focus on the development of a robust cathode for the conversion of carbon dioxide with optimum physical and chemical structure to achieve long-term stable performance. This technology would make a significant contribution to increasing the proportion of renewable e ....CO2 Utilisation for Energy Storage. This project aims to develop a novel technology that can convert carbon dioxide into useful products while storing intermittent renewable energy as green stable chemical energy. The project plans to focus on the development of a robust cathode for the conversion of carbon dioxide with optimum physical and chemical structure to achieve long-term stable performance. This technology would make a significant contribution to increasing the proportion of renewable energy in our energy supply and reducing our carbon dioxide emissions.Read moreRead less
High purity formaldehyde production from carbon oxides. This project aims to investigate the detailed reaction mechanism of a green chemistry route of producing formaldehyde by reducing carbon monoxide and carbon dioxide in liquid phase. Formaldehyde is a widely used feedstock for chemical industries, but is not considered a green chemical because it is produced using natural gas as the feed, which loses over 61 per cent of energy. This project will maximise the yield and purity of the product, ....High purity formaldehyde production from carbon oxides. This project aims to investigate the detailed reaction mechanism of a green chemistry route of producing formaldehyde by reducing carbon monoxide and carbon dioxide in liquid phase. Formaldehyde is a widely used feedstock for chemical industries, but is not considered a green chemical because it is produced using natural gas as the feed, which loses over 61 per cent of energy. This project will maximise the yield and purity of the product, making it commercially viable. This project’s method for producing formaldehyde is expected to reduce the capital cost and energy losses.Read moreRead less
Hybrid cathode for low temperature solid oxide fuel cells. This project aims to develop molten carbonate-perovskite hybrid cathode materials for low temperature solid oxide fuel cells (LT-SOFCs) possessing both high catalytic activity towards oxygen reduction reaction (ORR) and high tolerance to carbon dioxide poisoning. Carbon dioxide in air can poison nearly all the perovskite cathode materials developed for LT-SOFCs (below 600 degrees C) so far. These materials will not be practically useful ....Hybrid cathode for low temperature solid oxide fuel cells. This project aims to develop molten carbonate-perovskite hybrid cathode materials for low temperature solid oxide fuel cells (LT-SOFCs) possessing both high catalytic activity towards oxygen reduction reaction (ORR) and high tolerance to carbon dioxide poisoning. Carbon dioxide in air can poison nearly all the perovskite cathode materials developed for LT-SOFCs (below 600 degrees C) so far. These materials will not be practically useful until carbon dioxide poisoning can be prevented. This project expects to make these LT-SOFC cathode materials commercially viable, solving a problem for the widespread use of low temperature solid oxide fuel cells.Read moreRead less
A new methodology for the measurement of transition metals ions in complex, high temperature oxide systems relevant to non-ferrous metal production. Complex multi-component molten oxide phases, known commonly as slags, are used in the high temperature production and refining of metals. The slag systems of commercial interest contain transition metals species, such as, Fe2+, Fe3+. Each of these species behaves as if it were a separate chemical component. Researchers at the University of Queensla ....A new methodology for the measurement of transition metals ions in complex, high temperature oxide systems relevant to non-ferrous metal production. Complex multi-component molten oxide phases, known commonly as slags, are used in the high temperature production and refining of metals. The slag systems of commercial interest contain transition metals species, such as, Fe2+, Fe3+. Each of these species behaves as if it were a separate chemical component. Researchers at the University of Queensland have developed a new methodolgy, which enables the concentrations of these transition metal ions to be measured.
These types of measurements cannot be made with any of the techniques currently in use. The study will provide data on high temperature slags in a number of industrially and scientifically important systems. This approach will be applicable to a wide range of chemical systems in the fields of extractive metallurgy, materials science and geology; systems which could not previously be characterised.Read moreRead less
Granular dynamics: from discrete simulation towards continuum modelling. The project aims to develop a general averaging theory to link discrete to continuum description of granular dynamics and a comprehensive understanding of the underlying physics. This will be achieved through detailed analysis of the particle-particle and particle-wall interactions at both microscopic and macroscopic levels, supported by the newly developed averaging theory and novel discrete particle simulation. The result ....Granular dynamics: from discrete simulation towards continuum modelling. The project aims to develop a general averaging theory to link discrete to continuum description of granular dynamics and a comprehensive understanding of the underlying physics. This will be achieved through detailed analysis of the particle-particle and particle-wall interactions at both microscopic and macroscopic levels, supported by the newly developed averaging theory and novel discrete particle simulation. The results, in terms of constitutive relations and boundary conditions, will be implemented in continuum-based process modelling and tested by comparing numerical and experimental results via typical case studies. It will significantly enhance the present capability of modelling granular flow that is widely encountered in many industries and in nature.Read moreRead less
Plantwide Control of Modern Chemical Processes from a Network Perspective. Complex plants increasingly appear in modern Australian process industries, particularly in mineral processing, petrochemical and renewable energies sectors. These plants represent vast capital costs and manufacture products at a very large scale. Improvement in control and operation of these processes can potentially provide significant economic benefits. The expected outcome of this research is an effective approach to ....Plantwide Control of Modern Chemical Processes from a Network Perspective. Complex plants increasingly appear in modern Australian process industries, particularly in mineral processing, petrochemical and renewable energies sectors. These plants represent vast capital costs and manufacture products at a very large scale. Improvement in control and operation of these processes can potentially provide significant economic benefits. The expected outcome of this research is an effective approach to improve operational safety, efficiency, product quality and manufacturing flexibility, helping to build a more efficient and environmental conscious Australian chemical industry. This project will also enhance Australia's scientific reputation in the frontier research area of advanced process control and management.Read moreRead less