A study has been made on converting alternative sources of oxides of carbon (CO and COP) to synthetic methanol with nuclear-power-generated electrolytic hydrogen and oxygen. The sources of CO and CO;! include (1) the oxygen-blown blast furnace which produces CO as a by-product from hotmetal production, (2) the steam calcination of limestone which products CO2 as a by-product of the lime and cement industry, (3) fossil-fuel power plant stack-gas as a source of CO2, and (4) the atmosphere, from which CO2 is recovered in a novel carbonate electrolytic cell. The recovered CO or CO;, is catalytically combined with electrolytic H2 to produce the synthetic fuels. In these systems, the conservation, efficiency, and environmental control of coal utilization is significantly improved. Blast-furnace CO could supply up to 20% of the gasoline demand in the USA at a 1985 cost of 56 to GOcent/US gallon, breaking even with SlS/Bbl imported oil. The CO2 from steam calcination of limestone could supply about 9% of the gasoline demand and the recovered CO;! from only 60% of the coal-fired power plants in the country could supply all of today's gasoline demand in the country (~10" US gal/yr). The 1985 cost estimates for carbon-dioxide-based gasoline range from 68rWJS gal for the highiy concentrated calcinerC02 feedstream to 83dlgal for the very dilute atmospheric CO;! feed, breaking even with 821 to $28/barrel oil for conventional gasoline. The dominating cost factor is the electrical power cost from the nuclear plant. The sharing of peaking and base-load costs between the power and synthetic-fuels consumers offers a cost and energy effective system.