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1.3 Oxyfuel Combustion

Background

   
Oxy-fuel combustion is the process of burning fuel with pure oxygen. This results in a concentrated CO2 stream. This stream is (almost) directly ready to be compressed and transported to a storage site. Oxy combustion in coal-fired power plants could be a good alternative for post-combustion CO2 capture. However, the production of pure oxygen is very energy intensive and thus oxy combustion for CO2 capture also has the drawback of a large efficiency penalty. For this CO2 capture route a cheap and efficient oxygen production process is needed. One option is to use Oxygen transfer membranes (OTM) that can produce pure oxygen at low energy use.

One of the UKR-projects regarding CCS was assigned to ‘oxy-fuel'. The project involves the demonstration of the oxy combustion technology to be applied by SEQ. In the CATO-2 work package part of the work deals with the provision of support to the SEQ ZEPP-project.

Main objectives

Another option is Chemical looping combustion. This promising concept has been demonstrated in several laboratory prototypes operating with clean fuel gases at atmospheric pressure. Further development is required to demonstrate the concept at a pilot scale on two fronts: the first for gaseous fuels, and the second for direct application of coal and in chemical looping reformers. CATO-2 will investigate if the direct application of Chemical Looping Combustion for coal. Small scale test will verify possible oxygen carriers in coal combustion environment.

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Latest Publications

Type Title Secure Date
Presentation
Oxy-fuel combustion for power generation
05-07-2010
All publications in CATO-2
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