Methanogenesis and Syntrophy Methane production is carried out by a group of Archaea, the methanogens, which are obligate anaerobes. 4H2+CO2CH4+2H20 △G0’=-130kJ/ reaction Substrates microbially converted to methane: methanol, formate, methylcaptan(CH3SH), acetate and methylaminesMethanogenesis and Syntrophy Methane production is carried out by a group of Archaea, the methanogens, which are obligate anaerobes: 4 H2 + CO2 CH4 + 2H2O DGo ’= -130 kJ/reaction Substrates microbially converted to methane: methanol, formate, methylcaptan (CH3SH), acetate and methylamines