发明名称 |
Removal of SOx from compressed oxyfuel-derived CO2 |
摘要 |
Sulfur dioxide (SO 2 ) is removed from a carbon dioxide feed gas by maintaining the feed gas at elevated pressure(s) in the presence of oxygen (O 2 ), water and NO x for a period of time sufficient to convert SO 2 to sulfuric acid and NO x to nitric acid and produce SO 2 -depleted, NO x -lean carbon dioxide gas. The invention resides in separating the sulfuric and nitric acids from said SO 2 -depleted, NO x -lean carbon dioxide gas, and then neutralizing the acids by reaction with an alkaline sorbent in an acid/sorbent reactor system to produce sorbent-derive sulfate and nitrate. The method has particular application in the removal of SO 2 and NO x from flue gas produced by oxyfuel combustion of a carbonaceous fuel. |
申请公布号 |
EP2404655(A2) |
申请公布日期 |
2012.01.11 |
申请号 |
EP20110172993 |
申请日期 |
2011.07.07 |
申请人 |
AIR PRODUCTS AND CHEMICALS, INC. |
发明人 |
WHITE, VINCENT;FOGASH, KEVIN BOYLE;PETROCELLI, FRANCIS PETER |
分类号 |
B01D53/00;B01D53/50;B01D53/60 |
主分类号 |
B01D53/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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