Catalyst for eliminating carbon smoke from copper and cerium and preparing method
Title：
Catalyst for eliminating carbon smoke from copper and cerium and preparing method
Application Number：
 200710062612
Application Date：
 2007/01/11
Announcement Date：
 2007/08/29
Pub. Date：
Publication Number：
 101024182
Announcement Number：
Grant Date：
Granted Pub. Date：
ApplicationType：
 Invention
State/Country：
 11[China|beijing]
IPC：
 B01J 23/83B01J 37/03B01D 53/94
Applicant(s)：
 Tsinghua Univ.
Inventor(s)：
 Wu Xiaodong, Liang Qing, Weng Rui
Key Words：
 Catalyst, carbon, smoke, copper, cerium, preparing method
Abstract：
 The invention discloses a belongs to exhaust gas catalyst technology area, specially relates to a removable copper cerium carbon smoke catalyst of selective oxidation removing diesel truck exhaust gas carbon smoke and its preparation method. Its characteristic is: used soluble cerium salt and copper salt as raw materials, a certain mole rate citric acid as complexant, a few assemble ethylene glycol as thickener, adjust the different Cu/Ce mole rate, use sol-gel method prepare CuxCe1-xO2-x catalyst, with the catalyst, the carbon smoke temperature can reduced from about 550degree centigrade to 320~420degree centigrade, carbon smoke in the oxygen-enriched atmosphere oxidized to CO2 removing, basically no CO in the products, and has better high temperature steady. Fundamentally the invention satisfied the low temperature require of modern diesel truck exhaust, and greatly increased the burning velocity, the particle trap can quickly rebirth.
Claim：
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PCT：
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2008-4-17
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