Process for the ammonia and methanol co-production

Details Process for the ammonia and methanol co-production Process for the ammonia and methanol co-production

C - Chemistry, Metallurgy

07

C

C07C 31/04 (2006.01) B01J 3/00 (2006.01) B01J 3/04 (2006.01) B01J 10/00 (2006.01) C01B 3/02 (2006.01) C01C 1/04 (2006.01) C07C 29/151 (2006.01)

Patent

CA 2229609

A process for ammonia and methanol co-production in a plant comprising a secondary reformer section, a high-temperature CO conversion section and a low- temperature CO conversion section, arranged in series, and an ammonia synthesis section, is distinguished by the fact that the unreacted gas flow coming from a methanol synthesis section, before being fed to the low- temperature CO conversion section, is advantageously saturated with a liquid flow comprising H2O appropriately heated by indirect heat exchange with a gaseous flow coming from the secondary reformer section.

L'invention concerne un procédé de coproduction d'ammoniac et de méthanol effectuée dans une installation comprenant une section contenant un reformeur secondaire, une section de conversion de CO à haute température et une section de conversion de CO à basse température, ces sections étant disposées en série, et une section de synthèse de l'ammoniac. Ledit procédé est caractérisé par le fait que le courant gazeux n'ayant pas réagi, provenant d'une section de synthèse de méthanol et avant sa transmission à la section de conversion de CO à basse température, est avantageusement saturé par un courant liquide renfermant un H¿2?O chauffé de façon appropriée par un échange de chaleur indirecte, avec un courant gazeux provenant de la section de reformeur secondaire.

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