发明名称 |
FCC REGENERATION PROCESS AND APPARATUS FOR REDUCING NOX |
摘要 |
Oxides of nitrogen (NO x) emissions from an FCC regenerator are reduced by forcing the regenerator to operate intermediate full and partial CO burn mode. Operating with less than 1 mole % O2, and up to 1 or 2 % in the flue gas, creates conditions which oxidize nitrogen compounds in coke on spent catalyst to NO x, and simultaneously convert NO x in the regenerator to nitrogen. A downstream CO boiler can burn this low CO flue gas without producing large amounts of NO x. Most NO x emissions can be eliminated. An apparatus, with the regenerator air:coke ratio controlled by both CO and O2 analyzers monitoring regenerator flue gas, is also disclosed.
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申请公布号 |
CA2098931(C) |
申请公布日期 |
2003.01.14 |
申请号 |
CA19932098931 |
申请日期 |
1993.06.22 |
申请人 |
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发明人 |
AVIDAN, AMOS ANDREW;MENON, RAGHU KOYAMANGALAM;SODOMIN, JOSEPH FRANK, III;MATHIAS, MARK FISCHER;STEVENSON, SCOTT A.;TEITMAN, GERALD JOSEPH |
分类号 |
B01D53/94;B01D53/86;B01D53/96;B01J8/24;B01J8/26;B01J38/12;B01J38/36;C10G11/18;C10G11/22;(IPC1-7):B01J38/30 |
主分类号 |
B01D53/94 |
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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