Process for ammonia recovery in ammonia production

Details Process for ammonia recovery in ammonia production Process for ammonia recovery in ammonia production

1993-10-27

1996-01-16

Langel, Wayne

Chemistry of inorganic compounds

Nitrogen or compound thereof

Ammonia or ammonium hydroxide

62 20, 422148, C01C 104

Patent

active

054845823

ABSTRACT:
A process and unit for the recovery of ammonia in ammonia production are disclosed. All or a portion of a high pressure liquid ammonia product stream is introduced into a syngas makeup stream to produce a mixed vapor-liquid refrigeration medium for condensing ammonia from a synthesis loop product stream. Following the product stream ammonia condensation step, the vapor component of the mixed vapor-liquid stream is compressed and cooled for condensing ammonia therefrom. Liquid ammonia separated from the low pressure mixed vapor-liquid stream can be withdrawn as a low pressure liquid ammonia product. An ammonia-lean makeup gas is then combined with the ammonia-containing product recycle gas stream from the synthesis loop and further compressed. The process preferably includes recycle of all or a portion of the low pressure liquid ammonia product as a supplemental refrigerant. A high pressure, ammonia-lean syngas vapor stream obtained following separation of the high pressure ammonia condensate can be used as a process cooling medium for chilling the syngas makeup stream and syngas stream. In such a manner, both ammonia and syngas compression can be consolidated in a single syngas compressor and the use of an ammonia refrigeration compressor can be eliminated.

REFERENCES:
patent: 4594333 (1986-06-01), Parrish

Affiliated with

Also associated with

Rating

Process for ammonia recovery in ammonia production does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for ammonia recovery in ammonia production, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for ammonia recovery in ammonia production will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-307779