NOVELTY - Generating a methane-enriched raw product gas stream and a gas-stripped char stream, involves reacting the carbonaceous feedstock in hydromethanation reactor in the presence of carbon monoxide, hydrogen, steam and hydromethanation catalyst to produce a methane-enriched raw product gas and a solid by-product char; withdrawing a stream of methane-enriched raw product gas; feeding a stripping gas into the char-withdrawal standpipe; feeding the stripped gas stream into the reactor; feeding the gas-stripped char stream to a screw discharge unit; and discharging the gas-stripped char stream.    USE - For generating methane-enriched raw product gas stream and a gas-stripped char stream from a non-gaseous carbonaceous material (claimed).    ADVANTAGE - The method more efficiently produces higher-value products; reduces by-products from various carbonaceous materials and operating intensity; and has greater overall process efficiency.    DETAILED DESCRIPTION - Generating a methane-enriched raw product gas stream and a gas-stripped char stream from a non-gaseous carbonaceous material, involves a) preparing a carbonaceous feedstock from the non-gaseous carbonaceous material; b) introducing the carbonaceous feedstock and a catalyst into a hydromethanation reactor, where hydromethanation reactor comprises a char withdrawal stand pipe having a withdrawal end extending into the hydromethanation reactor and a discharge end extending out of the hydromethanation reactor; c) reacting the carbonaceous feedstock in the hydromethanation reactor in the presence of carbon monoxide, hydrogen, steam and hydromethanation catalyst, and at an operating temperature of at least 1000 degrees F (at least 538 degrees C) and an operating pressure of at least 250 psig (1825 kPa) to produce a methane-enriched raw product gas and a solid by-product char; d) withdrawing a stream of the methane-enriched raw product gas from the hydramethanation reactor as the methane enriched raw product gas stream, where the methane-enriched raw product gas stream comprises methane, carbon monoxide, hydrogen, carbon dioxide, hydrogen sulfide, steam sad beat energy; e) withdrawing a stream of the solid by-product char from the hydromethanation reactor via the withdrawal end of the char-withdrawal standpipe, where the stream of solid by-product char flows from the withdrawal end to the discharge end of the char-withdrawal standpipe, and where withdrawn solid by-product char comprises an entrained gas; i) feeding a stripping gas into the char-withdrawal standpipe such that the stripping gas flows in a countercurrent direction to the flow of the stream of by-product char within the char-withdrawal standpipe to generate (1) a stripped gas stream enriched in the entrained gas and (2) a gas-stripped, char stream depleted in the entrained gas; g) feeding the stripped gas stream into the hydromethanation reactor via the char-withdrawal standpipe; h) feeding the gas-stripped char stream to a screw discharge unit in communication with discharge end of the char-withdrawal standpipe; and i) discharging the gas-stripped char stream from the screw discharge unit at super atmospheric pressure.