Photocatalytic methanol and methane production using captured CO2 from coal-fired power plants. Part I - a Life Cycle Assessment

Results of global warming potential indicate that the S2F concept has the potential to reduce CO2 emissions in comparison to conventional power generation and methanol/methane production. But the S2F concept needs large amounts of water in regions which suffer from water shortages. Furthermore, distillation of methanol produced by photocatalysis has been identified as a weak point with respect to energetic and ecological impacts. Hence, the methane producing S2F concept shows a better ecological performance than the S2F methanol process.