发明名称 |
MULTI-BED SELECTIVE CATALYTIC REDUCTION SYSTEM AND METHOD FOR REDUCING NITROGEN OXIDES EMISSIONS |
摘要 |
<p>Systems and methods of removing at least nitrogen oxides from an exhaust fluid generally include introducing a first reducing agent and a hydrogen gas co-reductant agent into the exhaust fluid upstream of a catalyst bed optimized for a hydrocarbon selective catalytic reduction process to reduce nitrogen oxides present in the exhaust fluid and then reacting residual nitrogen oxides in a second catalytic bed optimized for an ammonia selective catalytic reduction process. The use of hydrogen gas permits efficient reduction of nitrogen oxides over a wide temperature range, which is minimally affected by the presence of sulfur dioxide in the exhaust fluid.</p> |
申请公布号 |
WO2008067038(A1) |
申请公布日期 |
2008.06.05 |
申请号 |
WO2007US80680 |
申请日期 |
2007.10.08 |
申请人 |
GENERAL ELECTRIC COMPANY;VITSE, FREDERIC;HANCU, DAN |
发明人 |
VITSE, FREDERIC;HANCU, DAN |
分类号 |
B01D53/94;F01N3/20 |
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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