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Methanation is a physical-chemical process to generate methane from a mixture of various gases out of biomass fermentation or thermo-chemical gasification.[1] The main components are carbon monoxide and hydrogen. The main catalysts used for this reaction are ruthenium, cobalt, nickel and iron.[2] The following main process describes the methanation:

\mathrm{\,CO + 3\, H_2 \rightarrow C H_{4} + \, H_2O}

This process is used for the generation of biogenous natural gas substitute, which can be fed into the gas grid.
Methanation is the reverse reaction of steam methane reforming, which converts methane into synthesis gas.

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  1. ^ Ponec, V. (1978). "Some Aspects of the Mechanism of Methanation and Fischer-Tropsch Synthesis". Catalysis Reviews: Science and Engineering 18 (1): 151–171. doi:10.1080/03602457808067530. Retrieved 7 August 2012. 
  2. ^ Mills, G. Alex; Fred W. Steffgen (1974). "Catalytic Methanation". Catalysis Reviews: Science and Engineering 8 (1): 159–210. doi:10.1080/01614947408071860. Retrieved 7 August 2012.