TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Component: The Sabatier Reactor (128) is formed of a ceramic foam material. The ceramic foam material is an aluminum based ceramic foam material and comprises an additive.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Method: The extraction of hydrogen from the syngas comprises subjecting the syngas to a water gas shift process (122) to form a mixture of hydrogen and carbon dioxide (126); and extracting hydrogen from the mixture of hydrogen and carbon dioxide by subjecting the mixture of hydrogen and carbon dioxide to a pressure swing adsorption process, to a molecular sieve, or to an aqueous ethanolamine solution. Prior to subjecting the syngas to a water gas shift process to form a mixture of hydrogen and carbon dioxide, a step of pre-treating the output of the plasma melter to perform a cleaning of the syngas is carried out. The step of forming methane from the hydrogen produced in the step of extracting hydrogen comprises subjecting the hydrogen to a Sabatier Reactor process. Prior to forming methane from the hydrogen produced in extracting hydrogen, a step of optimizing the production of methane by correcting the molar ratio of carbon monoxide and hydrogen in the Sabatier Reactor process is carried out. The correction of the molar ratio of carbon monoxide and hydrogen in the Sabatier Reactor process comprises supplying a mixture of hydrogen and carbon monoxide to the Sabatier Reactor process. The step of supplying the mixture of hydrogen and carbon monoxide to the Sabatier Reactor process comprises diverting a portion of the hydrogen and carbon monoxide produced by the plasma melter. The step of diverting a portion of the hydrogen and carbon monoxide produced by the plasma melter is performed after performing a step of cleaning the hydrogen and carbon monoxide produced by the plasma melter. Prior to forming methane from the hydrogen produced in extracting hydrogen, a step of optimizing the production of methane by correcting the molar ratio of carbon dioxide and hydrogen in the Sabatier Reactor process is carried out. The step of supplying the mixture of hydrogen and carbon dioxide to the Sabatier Reactor process comprises diverting a portion of the hydrogen and carbon dioxide produced by a water gas shift process. The method further comprises extracting a slag from the plasma melter. The step of supplying a biomass material to the plasma melter comprises supplying municipal waste to the plasma melter. The plasma melter is operated in a pyrolysis mode. EXAMPLE - No suitable example given.