发明名称 |
Catalytic reduction of NOx using methane in the presence of oxygen |
摘要 |
The invention describes a catalytic process for destroying NOx from oxygen-containing combustion products wherein methane serves as a reductant. The process comprises contacting the NOx-containing combustion products with a desired amount of methane and oxygen in the presence of a metal-exchanged crystalline zeolite having a silicon to aluminum ratio of greater than or equal to about 2.5 under conditions sufficient to effect conversion to gaseous nitrogen, water and carbon oxides. The zeolites are exchanged with a cation selection from the group consisting of cobalt, nickel, iron, chromium, rhodium and manganese. |
申请公布号 |
US5149512(A) |
申请公布日期 |
1992.09.22 |
申请号 |
US19910739273 |
申请日期 |
1991.08.01 |
申请人 |
AIR PRODUCTS AND CHEMICALS, INC. |
发明人 |
LI, YUEJIN;ARMOR, JOHN N. |
分类号 |
B01D53/86;B01D53/94;B01J29/42;B01J29/44;B01J29/46;B01J29/48;B01J29/72;B01J29/78;F01N3/20;F01N13/02 |
主分类号 |
B01D53/86 |
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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