Ammonia decomposition catalysts

Details Ammonia decomposition catalysts Ammonia decomposition catalysts

1995-06-06

1997-10-21

Langel, Wayne

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Nitrogen or nitrogenous component

423351, 4236582, C01B 304

Patent

active

056793138

ABSTRACT:
An ammonia decomposition catalyst wherein a first catalyst having a crystalline silicate which is represented by the formula in terms of molar ratio of oxides as dehydrated:
wherein R denotes an alkaline metal ion and/or hydrogen ion, M denotes a VIII Group element, rare earth element, titanium, vanadium, chromium, niobium, antimony or gallium, M' denotes magnesium, calcium, strontium or barium, a.gtoreq.0, 20>b.gtoreq.0, a+c=1, 3000>y>11 or a specific porous material as a carrier and iridium or a noble metal as an active metal is present together with or covered with a second catalyst having at least one element selected from the group consisting of titanium, vanadium, tungsten and molybdenum, if necessary, as well as a method of using the same.

REFERENCES:
patent: 5338715 (1994-08-01), Iida et al.

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