Patent ID: 8771388
Filing Date: 2014-07-08
Classification: C01B,C10G,C10J,C10K,C10L,Y02E,Y02P

Abstract:
1. A process for converting carbonaceous material into methane-rich fuel gas, comprising: simultaneously heating in a steam hydrogasification reactor the carbonaceous material in the presence of both hydrogen and steam, at a temperature and pressure sufficient to generate a stream of methane and carbon monoxide rich product gas; subjecting the methane and carbon monoxide rich produce gas in a shift reactor to a shift reaction to thereby form a shifted methane rich produce gas, wherein steam for the shift reaction is provided by the unreacted steam from the steam hydrogasification reactor; wherein the carbon monoxide in the product reacts in the shift reactor with steam to produce hydrogen, and wherein the steam used to react with the carbon monoxide in the shift reactor is obtained only from the steam hydrogasification reactor; and separating the hydrogen from the shifted methane rich product gas, and recycling at least part of the separated hydrogen to the steam hydrogasification reactor.