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Title: Reduction of nitrogen oxides with catalytic acid resistant aluminosilicate molecular sieves and ammonia

Patent ·
OSTI ID:863643
;

Noxious nitrogen oxides in a waste gas stream such as the stack gas from a fossil-fuel-fired power generation plant or other industrial plant off-gas stream is catalytically reduced to elemental nitrogen and/or innocuous nitrogen oxides employing ammonia as reductant in the presence of a zeolite catalyst in the hydrogen or sodium form having pore openings of about 3 to 10 A.

Research Organization:
Idaho National Laboratory (INL), Idaho Falls, ID (United States)
Sponsoring Organization:
US Atomic Energy Commission (AEC)
DOE Contract Number:
AT(10-1)-1375
Assignee:
United States of America as represented by United States Department of Energy (Washington, DC)
Patent Number(s):
4,220,632
Application Number:
05/504793
OSTI ID:
863643
Resource Relation:
Patent File Date: 1974 Sep 10
Country of Publication:
United States
Language:
English

References (1)

The Catalytic Treatment of Nitric Acid Plant Tail Gas journal March 1961

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Related Subjects

reduction
nitrogen
oxides
catalytic
acid
resistant
aluminosilicate
molecular
sieves
ammonia
noxious
waste
gas
stream
stack
fossil-fuel-fired
power
generation
plant
industrial
off-gas
catalytically
reduced
elemental
innocuous
employing
reductant
presence
zeolite
catalyst
hydrogen
sodium
form
pore
openings
10
nitrogen oxide
molecular sieves
waste gas
nitrogen oxides
molecular sieve
gas stream
power generation
off-gas stream
zeolite catalyst
stack gas
acid resistant
sodium form
elemental nitrogen
industrial plant
generation plant
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