Method for the production of urea

Details Method for the production of urea Method for the production of urea

C - Chemistry, Metallurgy

07

C

C07C 273/04 (2006.01) B01J 10/00 (2006.01) B01J 19/24 (2006.01)

Patent

CA 2440896

A method for the production of synthesis urea from liquid ammonia and gaseous carbon dioxide, comprising the step of feeding separate flows (6, 8) of liquid ammonia and gaseous carbon dioxide in continuous to a substantially vertical or horizontal column synthesis reactor (1), is distinguished in that the feed of liquid ammonia is split up into at least two consecutive sections (Z1-Z7) of said column.

L'invention concerne la production d'urée de synthèse à partir d'ammoniac liquide et de dioxyde de carbone gazeux. Le procédé consiste à alimenter en continu des débits séparés (6, 8) d'ammoniac liquide et de dioxyde de carbone gazeux dans un réacteur de synthèse à colonne sensiblement horizontale ou verticale (1. Le procédé se caractérise en ce que la charge d'ammoniac liquide est fractionnée pour alimenter au moins deux sections consécutives (Z1-Z7) de ladite colonne.

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