Patent ID: 8663949

Claim:
An integrated ammonia production and fermentation method for producing one or more products from a gas stream comprising methane, the method comprising; a) converting at least a portion of a gas stream comprising methane to a substrate comprising CO, CO 2 and H 2 ; b) passing at least a portion of the substrate to a bioreactor containing a culture of one or more carboxydotrophic bacteria, anaerobically fermenting at least a first portion of the substrate comprising CO and H 2 to produce one or more products comprising alcohols and/or acids and an exhaust gas stream comprising hydrogen and carbon dioxide; c) passing a second portion of the substrate to a water gas shift reactor operated at conditions to produce an effluent stream comprising CO 2 and H 2 ; d) passing the exhaust gas stream and the effluent stream of (c) to a separation zone operated at conditions to separate at least a portion of the CO 2 and produce a second effluent stream rich in H 2 and a CO 2 stream; and e) passing the second effluent stream to an ammonia synthesis zone operated at conditions to produce ammonia.