0494388-A1 is referenced by 21 patents and cites 2 patents.

A process for removing nitrogen oxides from an exhaust gas by bringing the exhaust gas containing nitrogen oxides into contact with at least one catalyst selected from a polyvalent metal phosphate, a polyvalent metal sulfate or an aluminate of a transition metal of the 4th period of the Periodic Table in an oxidizing atmosphere containing excess oxygen and in the presence of a hydrocarbon or an oxygen containing organic compound. There is also disclosed a process for removing nitrogen oxides from an exhaust gas which comprises bringing the exhaust gas into contact with the above catalyst and then with an oxidation catalyst.

Title
Process for removing nitrogen oxides from exhaust gases.
Application Number
EP19910121163 19911210
Publication Number
0494388 (A1)
Application Date
December 10, 1991
Publication Date
July 15, 1992
Inventor
Shimizu Hiromitsu
JP
Nakatsuji Tadao
JP
Usui Kazushi
JP
Kitazume Akihiro
JP
Tabata Mitsunori
JP
Suganuma Fujio
JP
Sasaki Moti
JP
Ito Takehiko
JP
Hamada Hideaki
JP
Kintaichi Yoshiaki
JP
Assignee
Sakai Chemical Industry Co
JP
Cosmo Oil
JP
Petroleum Energy Center Found
JP
Agency Ind Science Techn
JP
IPC
B01J 27/18
B01J 27/053
B01D 53/36
B01J 27/14
B01J 27/053
B01D 53/94
B01J 27/18
B01J 27/053
B01D 53/94
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