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Reference Number EP/G062153/1
Title Oxyfuel Combustion - Academic Programme for the UK
Status Completed
Energy Categories FOSSIL FUELS: OIL, GAS and COAL(Coal, Coal combustion) 50%;
FOSSIL FUELS: OIL, GAS and COAL(CO2 Capture and Storage, CO2 capture/separation) 50%;
Research Types Basic and strategic applied research 100%
Science and Technology Fields PHYSICAL SCIENCES AND MATHEMATICS (Physics) 10%;
PHYSICAL SCIENCES AND MATHEMATICS (Applied Mathematics) 10%;
ENGINEERING AND TECHNOLOGY (Mechanical, Aeronautical and Manufacturing Engineering) 80%;
UKERC Cross Cutting Characterisation Not Cross-cutting 100%
Principal Investigator Professor M Pourkashanian
No email address given
Energy Resources Research Unit
University of Leeds
Award Type Standard
Funding Source EPSRC
Start Date 01 November 2009
End Date 31 July 2014
Duration 57 months
Total Grant Value £1,737,735
Industrial Sectors Energy
Region Yorkshire & Humberside
Programme Energy : Energy
 
Investigators Principal Investigator Professor M Pourkashanian , Energy Resources Research Unit, University of Leeds (99.988%)
  Other Investigator Dr W Nimmo , Energy Resources Research Unit, University of Leeds (0.001%)
Professor S (Simone ) Hochgreb , Engineering, University of Cambridge (0.001%)
Dr SA Scott , Engineering, University of Cambridge (0.001%)
Prof J (John ) Dennis , Chemical Engineering, University of Cambridge (0.001%)
Mr JE (John ) Oakey , School of Applied Sciences, Cranfield University (0.001%)
Dr P Fennell , Chemical Engineering, Imperial College London (0.001%)
Dr J (John ) Gibbins , Sch of Engineering and Electronics, University of Edinburgh (0.001%)
Dr G Lu , Electronics, University of Kent (0.001%)
Dr L Ma , Computational Fluid Dynamics, University of Leeds (0.001%)
Professor Y Yan , North China Electric Power University, China (0.001%)
Professor C (Colin ) Snape , Chemical and Environmental Engineering, University of Nottingham (0.001%)
Dr AM (Andreas ) Kempf , University of Duisberg-Essen, Germany (0.001%)
  Industrial Collaborator Project Contact , Fluent Europe Ltd (0.000%)
Project Contact , Babcock International Group plc (0.000%)
Project Contact , Zhejiang University, China (0.000%)
Project Contact , BOC Ltd (0.000%)
Web Site
Objectives
Abstract If the carbon dioxide produced when coal is burnt to make electricity can be collected in a concentrated form then it can be compressed into a dense liquid and squeezed into the pores between rock grains a kilometre or more underground. By putting the carbon dioxide (CO2 ) in places where the porous rocks are sealed by layer of non-porous rocks we can be very confident that most of it will stay there for tens of thousands of years, so it won't increase the risk of dangerous climate change. But current coal power stations don't release the CO2 in a concentrated form; it is mixed with about five times its volume of nitrogen and oxygen, from the air used to burn the coal.One way to avoid this is to burn the coal in pure oxygen instead of air. We know this can theoretically be made to work, but if pure oxygen - or really a 'synthetic air' made up of oxygen and recycled combustion products instead of nitrogen - is used to burn coal then many things would be differentfrom using air. This project will develop the scientific understanding that power plant builders and operators need to predict and cope with these differences.To help develop a better scientific understanding of oxyfuel combustion we will undertake experiments in a 150 kW laboratory burner. This is small (1% of the size!) compared to real power plant burners, but it will use the same oxygen/flue gas mixture. Computer models will be developed to analyse how the coal burns in the laboratory scale burner. These models can then be applied to full scale burners.Using the power available from modern computer systems it is now possible to track the behaviour of all of the swirling gases and particles in a flame ands see how they move and react over very small intervals of time. It's possible - but we are still learning how to do it properly. To help us do this we are taking high speed (1000 frames per second) video recordings of our laboratory oxyfuel flames to see how theyreally flow and flicker and using the bright and precise beams from laser to help track how particles move and to tell us what sort of gas mixtures are present.We are also reproducing just some of the things that happen in flame in special test equipment so that we have simpler things to measure. These measurements then go into the computer models. How coal particles first catch alight and then how they char and burn are particularly important. We are also interested how the ash in the coalwill behave. It can cause problems coating the walls of air-fired power plants, but after a lot of experience we know how to avoid that. Some of those lessons are probably going to have to be re-learned for oxyfuel combustion and the experts who help to sort out air combustion are now starting to do that on our project. We are also looking at how oxyfuel combustion products might attack the steels used in boilers; new materials might be needed, especially in hot or dusty locations.Finally,we need to have trained scientists and engineers to help design and build these new types of power plants. Our project will help to train a number of these, and also build up the experience in the academic community that can be used to advise industry when they come to build and operate new oxyfuel plants. We will also have developed some of the new measurement techniques that can be used to help tune the first plants to give the best possible performance.But no project can do it all. So we are working closely with other groups in the UK and overseas - the IEA Greenhouse Gas Programme coordinates an excellent network that we belong too. And as we learn more we also expect to come up with more questions that need to be answered plus some good ideas for ways to do that
Publications (none)
Final Report (none)
Added to Database 10/09/09