C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
260/548.4
C07C 273/10 (2006.01) C01C 1/04 (2006.01)
Patent
CA 1106405
ABSTRACT OF THE DISCLOSURE: An improvement of the SNAM ammonia-stripper integrated urea process is disclosed, wherein a gaseous stream obtained by decomposing hydrocarbons is fed to an adiabatic ammonia stripper placed downstram of a carbamate decomposer, the adiabatic stripper also receiving a solution of urea which is rich in ammonia coming from the carbamate decomposer. The thus enriched stream (NH3, CO2, H2O) is processed in a CO2 -absorber (or carbamate reactor) and the process proceeds in the urea synthesis reactor. Recycling and recovery loops are provided between the several reaction and/or decomposing units. Surprisingly enough, the stripping on NH3 and CO2 takes place adiabatically and the drop of the CO2 partial pressure in the stream fed to the carbamate reactor has no bearing on the efficiency of the carbamate conversion which, according to the current technical teachings, requires an increase of the CO2 partial pressure.
292378
Lagana Vincenzo
Saviano Francesco
Robic Robic & Associes/associates
Snamprogetti S.p.a.
LandOfFree
Integrated ammonia-urea producing process, for the... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Integrated ammonia-urea producing process, for the..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Integrated ammonia-urea producing process, for the... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-337280