Catalyzer for removing bi-metal of copper potassium cerium basis soot process for producing the same |
Title： |
| Catalyzer for removing bi-metal of copper potassium cerium basis soot process for producing the same |
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Application Number： |
200710120827 |
Application Date： |
2007/08/27 |
Announcement Date： |
2008/02/27 |
Pub. Date： |
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Publication Number： |
101130166 |
Announcement Number： |
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Grant Date： |
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Granted Pub. Date： |
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ApplicationType： |
Invention |
State/Country： |
11[China|beijing] |
IPC： |
B01J 23/83, B01J 23/78, B01D 53/94 |
Applicant(s)： |
Tsinghua University |
Inventor(s)： |
Wu Xiaodong, Li Jia, Weng Duan, Lin Fan |
Key Words： |
Catalyzer, removing, bi-metal copper potassium cerium basis, soot, producing process |
Abstract： |
The invention discloses a copper-potassium dual-metal cerium-based carbon smoke removing catalyst and preparing method for diesel tail gas selectively in the tail gas catalyst technical domain, which is characterized by the following: adopting low-cost soluble copper salt, potassium salt and cerium salt as raw material; using oxidizing co-sediment method to prepare catalyst carrier; utilizing equal bulk co-immersion method to load dual-metal salt; adjusting the weight percentage of different Cu, K and Ce; making CuxKy/CeO2 catalyst; adopting analog diesel tail gas as reacting atmosphere to reduce burning temperature of carbon smoke from 550 deg. c to 400 deg. c or below; satisfying the temperature request of diesel discharge; accelerating the burning speed of carbon smoke particle greatly; regenerating the particle catcher. The catalyst system has superior sulfur toxicity resistance. |
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PCT： |
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