Process for the preparation of urea
OwnerKees Jonckers, Jozef H. Meesseninventors
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Abstract
Process for the preparation of urea from ammonia and carbon dioxide in which a submerged condenser is used as high-pressure carbamate condenser and the urea synthesis solution leaving the submerged condenser is transferred to the reactor by means of an ejector. In particular, this relates to a process in which a pool condenser is used as submerged condenser.
Claims12
Process for the preparation of urea from ammonia and carbon dioxide, characterized in that as high-pressure carbamate condenser use is made of a submerged condenser and the urea synthesis solution leaving the submerged condenser is transferred to the reactor by means of an ejector.
Method for improving and optimizing an existing urea plant, characterized in a submerged condenser for use as high-pressure carbamate condenser and an ejector for transferring the urea synthesis solution leaving the submerged condenser to the reactor are additionally installed.
Dependencies are inferred from the claim text.