Plant for urea production involving a carbon dioxide stripping s

Details Plant for urea production involving a carbon dioxide stripping s Plant for urea production involving a carbon dioxide stripping s

1995-06-07

1997-10-28

Kim, Christopher

Chemical apparatus and process disinfecting, deodorizing, preser

Chemical reactor

Including heat exchanger for reaction chamber or reactants...

422189, 564 67, 203 31, B01J 804

Patent

active

056815379

ABSTRACT:
An improved process for urea production as well as a method of retrofitting a pre-existing urea plant based on the Stamicarbon process are disclosed. According to the invention, a high-yield reactor with partial removal of the reaction heat and a urea recovery section of the solution leaving the high-yield reactor, are added to the pre-existing urea plant unreacted ammonia and carbon dioxide vapors as well as a carbamate solution obtained in the urea recovery section are recycled to the pre-existing reactor.

REFERENCES:
patent: 5176800 (1993-01-01), Zardi et al.
patent: 5276183 (1994-01-01), Pagani et al.
patent: 5380943 (1995-01-01), Pagani et al.
patent: 5403956 (1995-04-01), Pagani

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