A process comprising the following steps: a) providing a gasification reactor that comprises: at least one reaction zone (30, 40) comprising: a first reaction zone, and a second reaction zone including a first outlet; and a quench section including a second outlet, wherein the quench section is configured to cool molten ash and remove said molten ash via the second outlet, and wherein the first reaction zone is placed intermediate the second reaction zone and the quench section; b) feeding a carbonaceous feedstock to the first reaction zone and feeding additional carbonaceous feedstock in form of a slurry to the second reaction zone; c) partially oxidizing the carbonaceous feedstock in the at least one reaction zone (30, 40) to produce a product gas comprising H 2, CO, and methane exiting the reactor via the first outlet and molten ash; d) extracting an extraction gas stream from a third outlet in the quench section of the gasification reactor, the extraction gas stream having a reduced methane content relative to the product gas of step c), namely between about 0.01% and about 1.5% methane based on dry volume; e) cooling the molten ash in the quench section and removing said molten ash via the second outlet; and f) rerouting the extraction gas stream to serve as a feedstock for a chemical production process that comprises a Fischer-Tropsch process, or a process for the production of methanol, ammonia, methyl acetate, urea, urea ammonium nitrate, butyraldehyde or hydrogen gas, wherein: the first reaction zone is fired and the second reaction zone is unfired, a partial oxidation of the carbonaceous feedstock is the predominant reaction occurring within the first reaction zone, while pyrolysis of the carbonaceous feedstock is the predominant reaction occurring within the second reaction zone via the heat produced in the first reaction zone, and the partial oxidation of the carbonaceous feedstock raises the temperature of the first reaction zone to between 1093°C (2000°F) and 1926°C (3500°F). a) providing a gasification reactor that comprises: at least one reaction zone (30, 40) comprising: a first reaction zone, and a second reaction zone including a first outlet; and a quench section including a second outlet, wherein the quench section is configured to cool molten ash and remove said molten ash via the second outlet, and wherein the first reaction zone is placed intermediate the second reaction zone and the quench section; at least one reaction zone (30, 40) comprising: a first reaction zone, and a second reaction zone including a first outlet; and a first reaction zone, and a second reaction zone including a first outlet; and a quench section including a second outlet, wherein the quench section is configured to cool molten ash and remove said molten ash via the second outlet, and wherein the first reaction zone is placed intermediate the second reaction zone and the quench section; b) feeding a carbonaceous feedstock to the first reaction zone and feeding additional carbonaceous feedstock in form of a slurry to the second reaction zone; c) partially oxidizing the carbonaceous feedstock in the at least one reaction zone (30, 40) to produce a product gas comprising H 2, CO, and methane exiting the reactor via the first outlet and molten ash; d) extracting an extraction gas stream from a third outlet in the quench section of the gasification reactor, the extraction gas stream having a reduced methane content relative to the product gas of step c), namely between about 0.01% and about 1.5% methane based on dry volume; e) cooling the molten ash in the quench section and removing said molten ash via the second outlet; and f) rerouting the extraction gas stream to serve as a feedstock for a chemical production process that comprises a Fischer-Tropsch process, or a process for the production of methanol, ammonia, methyl acetate, urea, urea ammonium nitrate, butyraldehyde or hydrogen gas, wherein: the first reaction zone is fired and the second reaction zone is unfired, a partial oxidation of the carbonaceous feedstock is the predominant reaction occurring within the first reaction zone, while pyrolysis of the carbonaceous feedstock is the predominant reaction occurring within the second reaction zone via the heat produced in the first reaction zone, and the partial oxidation of the carbonaceous feedstock raises the temperature of the first reaction zone to between 1093°C (2000°F) and 1926°C (3500°F). the first reaction zone is fired and the second reaction zone is unfired, a partial oxidation of the carbonaceous feedstock is the predominant reaction occurring within the first reaction zone, while pyrolysis of the carbonaceous feedstock is the predominant reaction occurring within the second reaction zone via the heat produced in the first reaction zone, and the partial oxidation of the carbonaceous feedstock raises the temperature of the first reaction zone to between 1093°C (2000°F) and 1926°C (3500°F).