Traditional methane-to-methanol with carbon monoxide intermediate (based on steam reforming of natural gas): CH4 + H2O → CO + H2 CO + 2 H2 → CH3OH Direct red

Traditional methane-to-methanol with carbon monoxide intermediate (based on steam reforming of natural gas): CH4 + H2O → CO + H2 CO + 2 H2 → CH3OH Direct reduction of CO2 to methanol without going through the methane, an already established technology (Fischer-Tropsch type chemistry): CO2 + 3H2 → CH3OH + H2O Methanol is a common feedstock for further chemical synthesis (such as making high-octane gasoline), so this is an option for fuels from direct air capture of carbon dioxide & electrolysis of water for hydrogen. Two methanol molecules are dehydrated to form dimethyl ether (CH3-O-CH3) as the initial step: > "Methanol can be used to make a gasoline product. The process uses a special zeolite catalyst with pore size such that molecules up to C10 can get out of the catalyst. Larger molecules cannot be made with this process; therefore, a product is made with no carbon molecules greater than C10, which boils in the gasoline range. In this process, aromatics and branched-chain alkanes are made, which means the MTG process produces very high octane gasoline. Gasoline is the only product." https://www.e-education.psu.edu/egee439/node/679 https://www.e-education.psu.edu/egee439/node/679