Ammonia synthesis process

Details Ammonia synthesis process Ammonia synthesis process

1977-11-07

1980-07-29

Langel, Wayne A.

Chemistry of inorganic compounds

Nitrogen or compound thereof

Ammonia or ammonium hydroxide

423361, C01C 104

Patent

active

042150990

ABSTRACT:
An exothermic gas phase reaction, especially synthesis of ammonia or methanol, is carried out by passing the reactant gas over a catalyst in a first zone in heat exchange with a coolant and then in a second, adiabatic zone and then passing reacted gas directly to a heat recovery zone. Such a sequence of zones affords a higher output of product and better heat recovery than in many previously used sequences, especially when the heat available from the cooled zone is used to pre-heat reactant gas and the heat removed from the gas leaving the adiabatic zone is used in high-grade recoveries such as high pressure steam generation.

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patent: 3825501 (1974-07-01), Muenger
patent: 3998932 (1976-12-01), Collina et al.

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