Method for increasing the capacity of an existing urea process

Details Method for increasing the capacity of an existing urea process Method for increasing the capacity of an existing urea process

B - Operations, Transporting

01

D

B01D 3/00 (2006.01) C07C 273/04 (2006.01)

Patent

CA 2553388

Method for increasing the capacity of an existing urea process, the existing urea process comprising a reactor (R), a pressure-reduction section (SC) and a urea-recovery section (U), characterized in that (i) ~a stripping column (S) is added, in which ammonium carbamate from the reaction mixture is stripped with carbon dioxide or is thermally stripped at almost the same elevated pressure, resulting in a gaseous mixture (G1) and a liquid mixture (M4), which liquid mixture (M4) is fed to the pressure- reduction section (SC), (ii) ~a condenser (C) is added, which is fed with the gaseous mixture (G1), ammonia and optionally carbon dioxide, in which the gaseous mixture (G1) is condensed at almost the same elevated reactor pressure (P) and at least 30% of the equilibrium amount of urea obtainable under the condensation conditions is furthermore formed, in which a liquid mixture containing urea, water and ammonium carbamate (M5) is formed, which mixture is fed to the bottom of the existing reactor (R), and a gaseous mixture (G2), and (iii) ~a scrubber (SCR) is added, in which the gaseous mixture (G2) is brought into contact with the aqueous ammoniacal ammonium carbamate solution (M3), in which a liquid (M6) mixture is obtained, which is fed to the condenser (C), and a scrubbed gaseous mixture (G3).

Affiliated with

Also associated with

Rating

Method for increasing the capacity of an existing urea process does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for increasing the capacity of an existing urea process, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for increasing the capacity of an existing urea process will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1617684