Configurations and methods of sng production

C - Chemistry – Metallurgy – 10 – K

Patent

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Details

C10K 3/02 (2006.01) B01J 8/04 (2006.01) C10J 3/00 (2006.01) C10K 3/04 (2006.01)

Patent

CA 2644457

SNG plants according to the inventive subject matter include one or more methanation reactors that produce a primary methanation product that is cooled to a temperature sufficient to condense water, which is removed in a separator. So produced dried methanation product is then split to provide a reflux stream to the methanation reactors and a feed stream to an adiabatic trim reactor. Most preferably, the plant comprises at least two methanation reactors that are operated in series, wherein the first reactor receives the recycle stream and wherein the second reactor receives a portion of the first methanation reactor effluent and a portion of the first methanation reactor feed.

La présente invention concerne des installations de gaz naturel de substitution comportant un ou des réacteur de méthanation produisant un produit de méthanation primaire qui est refroidi à une température suffisante pour condenser l'eau, qui est éliminée dans un séparateur. Ainsi le produit de méthanation séché obtenu est ensuite divisé pour fournir un débit de reflux aux réacteurs de méthanation et un flux de charge à un réacteur de transformation adiabatique. Avantageusement, l'installation comporte au moins deux réacteurs de méthanation qui fonctionnent en série, le premier réacteur recevant le flux de recyclage, et le second réacteur recevant une partie de l'effluent du premier réacteur de méthanation et une partie de la charge du premier réacteur de méthanation.

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