Process for removing nitrogen oxides from oxygen rich exhaust ga

Details Process for removing nitrogen oxides from oxygen rich exhaust ga Process for removing nitrogen oxides from oxygen rich exhaust ga

1993-12-03

1995-09-12

Lewis, Michael

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Nitrogen or nitrogenous component

4232132, C01B 2104

Patent

active

054495040

ABSTRACT:
A process for removing nitrogen oxides from oxygen rich exhaust gas containing nitrogen oxides and hydrocarbons using a catalyst composed of at least one active metal and zeolite having a molar ratio of SiO.sub.2 /Al.sub.2 O.sub.3 of at least 15, treated with a vapor of at least one silicon compound selected from alkylchlorosilanes, alkoxysilanes, alkoxyalkylsilanes, and silicon tetrachloride or treated with an alkoxysilane or silicon tetrachloride in an organic solvent.

REFERENCES:
patent: 5013700 (1991-05-01), Falth
patent: 5223236 (1993-06-01), Inoue et al.
patent: 5236879 (1993-08-01), Inoue et al.
patent: 5270024 (1993-12-01), Kasahara et al.

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