Process for synthesizing ammonia

Details Process for synthesizing ammonia Process for synthesizing ammonia

1986-11-20

1988-05-17

Doll, John

Chemistry of inorganic compounds

Nitrogen or compound thereof

Ammonia or ammonium hydroxide

423361, C01C 104

Patent

active

047449667

ABSTRACT:
Means are disclosed for lowering the temperature of the gaseous effluent from the first catalyst bed in a continuous ammonia synthesis process in which a syngas mixture containing nitrogen and hydrogen is passed sequentially over two or more catalyst beds containing ammonia synthesis catalyst. This cooling, effected to promote the exothermic ammonia-forming reaction, is accomplished by subjecting the gaseous effluent from the first catalyst bed to heat exchange in a steam superheater, preferably after having undergone heat exchange with the synthesis gas feed to the first catalyst bed, to control the temperature of the effluent entering the second catalyst bed to a desired level.

REFERENCES:
patent: 3851046 (1974-11-01), Wright et al.
patent: 4181701 (1980-01-01), Topsoe et al.
patent: 4213954 (1980-07-01), Pinto
patent: 4510123 (1985-04-01), Grotz
patent: 4518574 (1985-05-01), Osman et al.
patent: 4624842 (1986-11-01), Grotz

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