Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Metal – metal oxide or metal hydroxide
Patent
1995-05-18
1998-05-05
Caldarola, Glenn A.
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Metal, metal oxide or metal hydroxide
502345, 502346, 502347, 502330, 502303, 502304, 502331, 502325, 4232132, 4232135, 4232137, B01J 2370, B01J 2372, B01J 802, C01B 2100
Patent
active
057474109
ABSTRACT:
Nitrogen oxides are removed from an exhaust gas containing nitrogen oxides and oxygen in an amount larger than its stoichiometric amount relative to unburned components in the exhaust gas, by using an exhaust gas cleaner having Ag supported by a porous inorganic oxide body and second catalyst containing second catalytically active components supported by a porous inorganic oxide body. The second catalytically active components consist essentially of Cu and/or other metals such as alkali metal elements, rare earth elements, etc.
REFERENCES:
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patent: 5108977 (1992-04-01), Yoshida
patent: 5208202 (1993-05-01), Muramatsu et al.
Thesis 2A526, 1990, The 59th Spring Conference of the Japan Chemical Society, "Catalytic Cracking Nitrogen Oxide Over Copper Zeolite (2)".
Thesis 3L420, 1990, The 60th Fall Conference of the Japan Chemical Society, "Development of Catalytic Removal Method of Nitrogen Oxide in Presence of SO.sub.X ".
Thesis 3L422, 1990, The 60th Fall Conference of the Japan Chemical Society, "Selective Reduction of Nitrogen by Hydrocarbons (1) Investigation of Oxide Catalysts".
Thesis 3L423, 1990, The 60th Fall Conference of the Japan Chemical Society, "Selective Reduction of Nitrogen by Hydrocarbons (2) Investigation of Oxide Catalysts".
67th CATSJ Meeting Abstracts: No. A1, vol. 33, No. 2, 1991, pp. 59-60; "Selective Catalytic Reduction of Nitrogen Oxides with Hydrocarbons".
"Catalyst", vol. 33, No. 2, 59 (1991), Selective Catalytic Reduction of Nitrogen Oxides with Hydro Carbons.
Abe Akira
Irite Naoko
Mochida Shoji
Muramatsu Gyo
Ogiwara Kazuhiko
Boozer Tanaga Anne
Caldarola Glenn A.
Kabushiki Kaisha Riken
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