Process for removing nitrogen oxides

Details Process for removing nitrogen oxides Process for removing nitrogen oxides

1994-08-01

1996-03-12

Straub, Gary P.

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Nitrogen or nitrogenous component

4232105, C01B 2100

Patent

active

054983991

ABSTRACT:
Disclosed herein are an inexpensive catalyst for removing nitrogen oxides effectively from an exhaust gas by either catalytic reduction or catalytic decomposition, and a process for removing nitrogen oxides from an exhaust gas by the aid of said catalyst. The invention will eliminate the disadvantages--high material cost and complex process for catalyst preparation--involved in the conventional technology. The catalyst contains as the major constituent a multiple oxide of the CaO--Fe.sub.x O type containing 5-50 wt % CaO, said catalyst reducing or decomposing nitrogen oxides. The process is designed for denitration of nitrogen oxides by the aid of said catalyst.

REFERENCES:
patent: 4011299 (1977-03-01), Henis et al.
patent: 5124305 (1992-06-01), Muan et al.

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