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Catalyst composition for removal of nitrogen oxides and a process for removal of nitrogen oxides

Patent ·
OSTI ID:6176671
;
The present invention provides a catalyst composition and a process for reducing and removing nitrogen oxides with ammonia in the presence of molecular oxygen, said catalyst composition comprising at least three components of titanium, vanadium and magnesium and optionally tungsten, the titanium and tungsten being contained as oxides and the vanadium and magnesium being contained as oxides and/or sulfates. This catalyst composition is characterized by magnesium being substituted for all or part of expensive tungsten and has advantages of high activity with improved catalyst life and heat resistance.
Assignee:
Mitsubishi Petrochemical Co Ltd (Japan)
Patent Number(s):
US 4378338
OSTI ID:
6176671
Country of Publication:
United States
Language:
English

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Related Subjects

42 ENGINEERING
424000* -- Engineering-- Pollution Control Equipment-- (1980-1989)
ALKALINE EARTH METALS
CATALYSTS
CHALCOGENIDES
CHEMICAL COMPOSITION
CHEMICAL REACTIONS
CONTROL
DENITRIFICATION
ELEMENTS
GASEOUS WASTES
MAGNESIUM
METALS
NITROGEN COMPOUNDS
NITROGEN OXIDES
OXIDES
OXYGEN COMPOUNDS
POLLUTION CONTROL
REMOVAL
TITANIUM
TRANSITION ELEMENTS
VANADIUM
WASTES