Producing methane by contacting a gas stream with a hydrogen souce in the presence of a catalyst

摘要

Disclosed is a method of producing methane. The method comprises providing formation fluid from a subsurface in situ conversion process; separating the formation fluid to produce a liquid stream and a first gas stream; and contacting the first gas stream with a hydrogen source in the presence of one or more catalysts to produce a second gas mixture. The first gas stream comprises carbon monoxide, olefins, and hydrogen, and the second gas mixture comprises methane. The hydrogen source comprises hydrogen present in the first gas stream.