Supervisor: Professor Mohamed Pourkashanian, Professor Lin Ma, Dr Kevin Hughes and Dr Karen N Finney
The UKCCSRC PACT Facilities are home to numerous combustion devices: natural gas-fired gas turbines and a pulverized fuel reactor burning coal and biomass, used for CCS applications either coupled with post-combustion capture or when operating under oxy-combustion conditions. This project will use differential mass spectrometry to compare submicron particulate emissions from the different reactors using different fuels and operating regimes. This will consider the particle size spectra, particle measurement programme-correlated number and gravimetrically-correlated mass in real-time. Particles can bypass collection systems, and therefore need to be assessed as they can interfere with downstream processes and have health implications. Based on the results, strategic mitigation methods can be devised for each condition/fuel combination. This will include evaluating the necessary measures to be taken to minimize impacts on flue gas cleaning, solvent-based carbon capture (to minimize degradation) and on CO2 stream treatment, transport and storage.
Supervisor: Professor Mohamed Pourkashanian, Professor Lin Ma, Dr Kevin Hughes and Prof Ingham
This project will investigate the most efficient modelling strategy of simulating the CO2 capture process in a novel packed bed for process intensification. A combined computational, experimental and process modelling technique will be employed.
Supervisor: Professor Mohamed Pourkashanian, Dr W Nimmo
Fossil fuel will remain a significant contributor to power generation around the world as countries develop and realise their economic and social potentials through industrial growth and increase in people’s standard of living. For example, coal remains a principal fuel for electricity generation (~40% of the world market) and contributes ~43% of CO2 emissions from the combustion of all fossil fuels. Therefore, in order to meet CO2 reduction targets, the urgency of developing, demonstrating, and deploying Carbon Capture and Storage (CCS) technologies is clear, supported by the recently released Intergovernmental Panel on Climate Change report.
Oxyfuel combustion is one of the front running technologies for CO2 capture in power generation and energy intensive industries, as recognised by the UK government’s recent announcement to fund the FEED study for the White Rose Partnership project as part of the £1bn DECC competition for CCS commercialisation. Displacement of coal by biomass with CCS is a method of gaining benefits from negative CO2 emissions.
The project will involve detailed experimental work performed on the 250kW combustion test facility associated with funded projects in the area of oxyfuel combustion. Coal and biomass fuels will be used and flame analysis methods will be employed; heat flux, temperature, chemical species and emissions. The effect of flue gas recycle conditions on flame characteristics and emissions will also be investigated
Supervisor: Professor Mohamed Pourkashanian, Dr Kevin Hughes, Professor Lin Ma and Dr Maria Elena Diego de Paz
Flexible operation of fossil fuel power plants is becoming a hot topic in the energy generation sector due to the expected increase of intrinsically intermittent renewable technologies in the energy mix in the near future. This flexible operation mode of the energy systems is challenging, especially when these plants are coupled to CO2 capture technologies. This study aims at investigating the dynamic behavior of natural gas fired power plants integrated with a post-combustion amine CO2 capture system, using process simulation tools such as Aspen Hysys and/or gCCS (gPROMS). The performance of the whole system will be assessed under dynamic conditions. Different integration options between the power plant and the capture system will be studied and analysed from a techno-economic perspective.