发明名称 |
EXHAUST GAS PURIFICATION CATALYST AND METHOD FOR PRODUCTION THEREOF |
摘要 |
<p>The invention realizes a catalyst which is hardly deteriorated even when volatile catalyst-poisoning compounds such as P and As are accumulated and which can reduce the rate of oxidation of SO 2 to a level as low as a fraction of that of the catalyst in the prior art, and provides an exhaust gas purification catalyst which can maintain a high activity and a low rate of oxidation of SO 2 for a long time even with any diversified coal, a method of producing the same, and an exhaust gas purification method using the same. Disclosed is an exhaust gas purification catalyst having a composition comprising oxides of titanium (Ti), molybdenum (Mo) and/or tungsten (W), vanadium (V) and bismuth (Bi), wherein the atomic ratio of Ti : (Mo and/or W) : V is 75 to 98.9 : 1 to 15 : 0.1 to 10 and the atomic ratio of Bi/(Mo and/or W) is 0.1 to 0.8.</p> |
申请公布号 |
EP2127743(A1) |
申请公布日期 |
2009.12.02 |
申请号 |
EP20080710637 |
申请日期 |
2008.01.30 |
申请人 |
BABCOCK-HITACHI KABUSHIKI KAISHA |
发明人 |
KATO, YASUYOSHI;KAI, KEIICHIRO;IMADA, NAOMI |
分类号 |
B01J23/31;B01D53/86;B01J23/28;B01J23/30;B01J27/199;B01J37/04 |
主分类号 |
B01J23/31 |
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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