NOVELTY - Production (M1) of liquid products from carbonaceous feed involves: gasification of feed to syngas (S1) comprising carbon dioxide, carbon monoxide, hydrogen and methane; bioconversion of syngas components in a bioreactor to liquid products by microorganisms; recovering a bioreactor effluent stream containing liquid products; recovering a tail gas stream from bioreactor comprising carbon dioxide and methane; separating carbon dioxide and passing methane rich stream to a reformer to produce carbon dioxide, carbon monoxide, and hydrogen; and passing the reformed stream to bioreactor.    USE - For the production of liquid products comprising ethanol, acetic acid, butanol, and/or butyric acid (preferably ethanol) from a carbonaceous feed comprising a biomass selected from wood, miscanthus, switch grass, sugarcane bagasse, corn stover and/or urban waste (all claimed), the liquid product such as ethanol is useful as liquid motor fuel, or as additive for conventional fuels such as gasoline or diesel.    ADVANTAGE - The process operates at lower temperatures. The recovered methane undergoes reforming to produce additional amounts of CO and H2 that can be converted to the liquid products. The process does not require that all of the recovered methane get converted to liquid products. A certain amount of the methane rich stream may be used to generate power, since the methane rich stream has a high fuel value it can be alternately be used for other plant energy requirements. Thus the process provides a simple way of isolating the methane rich stream and having it available for use as a feed to produce additional liquid products or as a source of energy to supply power for plant operations.    DETAILED DESCRIPTION - Production (M1) of liquid products from a carbonaceous feed by gasification of the feed to syngas comprising CO2, CO, H2 and CH4, and bioconversion of syngas components, involves:    (A) providing carbonaceous feed to a gasifier and heating the feed to produce a syngas (S1) comprising CO2, CO, H2 and CH4;    (B) passing the feed gas comprising syngas from the gasifier to a bioreactor to convert CO and CO2 and H2 to liquid products by contact with microorganisms;    (C) withdrawing a bioreactor effluent stream containing the liquid products from the bioreactor and recovering liquid products from the bioreactor effluent stream;    (D) recovering a tail gas stream from the bioreactor comprising CO2 and CH4;    (E) separating CO2 from the tail gas stream to produce a CH4 rich gas stream;    (F) passing at least a portion of the CH4 rich stream to a reformer to produce a reformed stream comprising CO and CO2 and H2; and    (G) passing at least a portion of the reformed stream to the bioreactor along with syngas from the gasifier to provide the feed gas to the bioreactor.