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CO2 CAPTURE FROM FLUE GAS

IP.com Disclosure Number: IPCOM000199697D
Publication Date: 2010-Sep-15
Document File: 1 page(s) / 45K

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The IP.com Prior Art Database

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CO2 CAPTURE FROM FLUE GAS

It is desirable to reduce the energy consumed in separating and compressing CO2 derived from flue gas originating from an oxyfuel combustion, especially when the flue gas contains around 50% CO2 on a dry basis.

To reduce energy and the cost of the compressors, the following set-up is proposed.

Three (or even four) phase separators are placed in series with a cold or warm compression step between each phase separator. This allows the liquid CO2 formed in each phase separator to be removed so that only the part of the fluid which is to be separated need be compressed.

The use of three phase separators rather than two reduces power consumption by 4% and also reduces the compressor size, since the flow to be compressed grows smaller, since the liquid is removed.


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