1987 Douwes Stamicarbon 4652678 Emissions

This patent describes a process whereby the dilute aqueous stream resulting from the evaporation section is first send to a first desorber to reduce the ammonia and carbon dioxide content. Then this stream is used in a dust scrubber of a granulation section or prill tower where it will reduce the dust emission. Thereafter the solution is send to a hydrolyser and a second desorber to recover the urea in the form  of ammonia and carbon dioxide which can be recycles to the synthesis.


Share this on:

UreaKnowHow.com is an independent group of nitrogen fertilizer specialists with an impressive number of years experience in designing, maintaining and operating nitrogen fertilizer plants.

Solution Providers offer their solutions to improve our member’s plants performance.