Process and reactor for the preparation of ammonia

Details Process and reactor for the preparation of ammonia Process and reactor for the preparation of ammonia

C - Chemistry, Metallurgy

01

C

C01C 1/04 (2006.01) B01J 8/04 (2006.01)

Patent

CA 2335384

Process and reactor for the preparation of ammonia at elev-ated pressure and temperature in an ammonia reactor, wherein a process stream of ammonia synthesis gas is suc-cessively passed through at least three catalyst beds with intermediate cooling of partially reacted synthesis gas leaving the catalyst beds by heat exchange in heat exchang-ers arranged between each catalyst bed. The process stream is obtained by combining prior to introduction into a first catalyst bed, a first feed stream of synthesis gas having been preheated through indirect heat exchange during the intermediate cooling of the partially converted synthesis gas and a second feed stream of synthesis gas for adjust-ment of temperature of the process stream. The first feed stream is passed successively through the interbed heat ex-changers for cooling the partially converted synthesis gas and space velocity of the synthesis gas is adjusted to be substantially in the same range in all catalyst beds.

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