Process for preparing methane rich gases

Details Process for preparing methane rich gases Process for preparing methane rich gases

C - Chemistry, Metallurgy

01

B

48/32

C01B 3/00 (2006.01) C07C 1/06 (2006.01)

Patent

CA 1075906

ABSTRACT OF THE DISCLOSURE Hydrogen and carbon oxides are reacted to form methane by passing an inlet stream of preheated methanation synthesis gas together with a recycle stream of product gas through a catalyst bed is a adiabatic methanation reactor. The inlet temperature is between 250 and 350°C, the outlet temperature between 500 and 700°C. The recycle stream is withdrawn from the outlet stream after the latter has been cooled to a temperature between 250 and 350°C and being, however, at least 50°C above the dew point. A preferred means for withdrawing the recycle stream is an ejector driven by the inlet stream or by added steam.

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