Utilization of cos hydrolysis in high pressure gasification

Details Utilization of cos hydrolysis in high pressure gasification Utilization of cos hydrolysis in high pressure gasification

B - Operations, Transporting

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D

B01D 53/75 (2006.01) B01D 53/14 (2006.01) B01D 53/52 (2006.01) B01D 53/62 (2006.01) B01D 53/86 (2006.01) C10J 3/00 (2006.01) C10K 1/08 (2006.01) C10K 1/10 (2006.01) C10K 1/34 (2006.01) F03B 13/00 (2006.01)

Patent

CA 2372652

The high pressure syngas product of a gasifier is routed first to a high pressure absorber unit that removes most of the H2S and some of the CO2 from the syngas. The syngas is then released through an expander to reduce the pressure of the syngas and simultaneously generate electricity. Steam is then injected into the syngas as a reactant in the subsequent COS hydrolysis step, converting the COS to H2S. After hydrolysis, the syngas is routed to a reabsorber where the remainder of the H2S and CO2 are removed. Sweet syngas can then be sent to a combustion turbine for use as a fuel source.

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