Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Metal – metal oxide or metal hydroxide
Patent
1998-05-07
1999-03-23
Simmons, David A.
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Metal, metal oxide or metal hydroxide
502313, 502317, 502321, 502324, 502336, 502339, 502347, 502355, B01J 2200
Patent
active
058859233
ABSTRACT:
An exhaust gas cleaner consisting essentially of a first catalyst consisting essentially of a first porous inorganic oxide supporting 1.6-8.7 weight percent of an Ag component, on a metal basis, and a second catalyst consisting essentially of a second porous inorganic oxide supporting 0.1-3.8 weight percent of a Pt component and 1-9.9 weight percent of a W component, each weight percent on a metal basis. The Ag component includes Ag or a compound thereof. The Pt component includes Pt, Pd, Ru, Rh, Ir, and Au. The W component includes W, V, Mn, Mo, Nb, and Ta.
REFERENCES:
patent: 3454355 (1969-07-01), Ryason
patent: 3931050 (1976-01-01), Asano et al.
patent: 3956188 (1976-05-01), Hindin et al.
patent: 4237032 (1980-12-01), Evans et al.
patent: 5208202 (1993-05-01), Muramatsu et al.
patent: 5318760 (1994-06-01), Subramanian et al.
patent: 5371056 (1994-12-01), Leyrer et al.
patent: 5409681 (1995-04-01), Kato et al.
Keenan et al., "General College Chemistry", fifth edition, Harper and Raw Publishers, pp. 488-489, 1957.
"Catalytic cracking of nitrogen oxide over copper zeolite(2)", Japan Chemical Soc., Thesis 2A526, The 59th Spring Conference, 1990.
"Development of catalytic removal method of nitrogen oxide in presence of SO.sub.X ", Japan Chemical Soc., Thesis 3L420, The 60th Fall Conference, 1990.
"Selective reduction of nitrogen oxide by hydrocarbons (1): Investigation of zeolite catalysts", Japan Chemical Soc., Thesis 3L422, The 60th Fall Conference, 1990.
"Selective reduction of nitrogen oxide by hydrocarbons (2): Investigation of oxide catalysts", Japan Chemical Soc., Thesis 3L423, The 60th Fall Conference, 1990.
"Selective catalytic reduction of nitrogen oxides with hydrocarbons", Catalyst, vol. 33, No. 2, 67th CATSJ Meeting Abstracts: No. A1, pp. 59-60, 1991.
Abstract of Japanese Application 05 115 788, 14 May 1993.
Muramatsu Gyo
Sumiya Satoshi
Yoshida Kiyohide
Gray Linda L
Kabushiki Kaisha Riken
Simmons David A.
LandOfFree
Exhaust gas cleaner does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Exhaust gas cleaner, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Exhaust gas cleaner will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2125201