C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
C07C 273/04 (2006.01) B01J 10/00 (2006.01) B01J 19/24 (2006.01)
Patent
CA 2599822
A process for urea production from ammonia and carbon dioxide, made to react at a predetermined high pressure in an appropriate synthesis reactor (112), from the reaction between NH3 and C02 being obtained a reaction mixture comprising urea, ammonium carbamate and free ammonia in aqueous solution, from which a recovery of ammonium carbamate and ammonia is carried out with their subsequent recycle to the synthesis reactor (112), said recovery from the reaction mixture taking place through operative steps of decomposition of the ammonium carbamate into NH3 and CO2 and of their stripping and a subsequent operative step of their recondensation into ammonium carbamate that is recycled to the synthesis reactor, the said reaction mixture obtained from the reaction between ammonia and carbon dioxide being pumped to the operative steps of decomposition and stripping.
L'invention porte sur un procédé de production d'urée à partir de NH3 et de CO2 réagissant sous une haute pression prédéterminée dans un réacteur de synthèse approprié (112). Le mélange ainsi obtenu, qui comprend de l'urée, du carbamate d'ammonium, et de l'ammoniac libre en solution aqueuse. On en extrait le carbamate d'ammonium et l'ammoniac avec leur recyclage subséquent dans le réacteur de synthèse (112). Ladite extraction comporte les étapes: de décomposition du carbamate d'ammonium en NH3 et CO2, et de leur revaporisation; et de leur recondensation en carbamate d'ammonium qui est recyclé dans le réacteur de synthèse, le mélange réactif de NH3 et de CO2 étant pompé vers les cycles fonctionnels de décomposition et de revaporisation.
Romiti Domenico
Sticchi Paolo
Norton Rose Or S.e.n.c.r.l. S.r.l./llp
Urea Casale S.a.
LandOfFree
Process for urea production and related plant does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Process for urea production and related plant, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for urea production and related plant will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1413116