发明名称 |
AMMONIA OXIDATION CATALYSTS |
摘要 |
An ammonia oxidation catalyst cartridge unit comprises a pair of retaining meshes spaced apart by less than 50 mm defining an enclosure filled with a random packed mass of particles of a composition comprising oxides of at least one metal selected from manganese, iron, nickel and cobalt, especially cobalt and at least one element A selected from rare earths and yttrium in such proportions that the element A to cobalt atomic ratio is in the range of 0.8 to 1.2. The catalyst particles have a minimum dimension of at least 0.5 mm and a maximum dimension of not more than 5 mm, and the spacing between the meshes is at least 4 times, but not more than 50 times, the maximum dimension of the particles. The unit may extend across the ammonia oxidation reactor cross section or a catalyst cartridge may comprise a grid or apertured plate, extending across the cross section of the reactor, with a unit as aforesaid in each aperture. |
申请公布号 |
WO9925650(A1) |
申请公布日期 |
1999.05.27 |
申请号 |
WO1998GB03386 |
申请日期 |
1998.11.06 |
申请人 |
IMPERIAL CHEMICAL INDUSTRIES PLC;CREWDSON, BERNARD, JOHN;WARD, ANDREW, MARK;DUNNE, MICHAEL, DAVID |
发明人 |
CREWDSON, BERNARD, JOHN;WARD, ANDREW, MARK;DUNNE, MICHAEL, DAVID |
分类号 |
B01J8/00;B01J8/02;B01J35/02;C01B21/26;C01B21/28 |
主分类号 |
B01J8/00 |
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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