TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Method: The syngas stream that is derived from carbonaceous feed material is subjected to partial oxidation before it is combined with the gaseous product stream. The gaseous product stream is formed by steam-methane reforming, or secondary reforming of a stream that is formed by steam-methane reforming. The secondary reforming is autothermal reforming. The gaseous product stream is formed by autothermal reforming, or non-catalytic partial oxidation. The mole ratio of hydrogen:carbon monoxide in the mixed syngas stream formed in the adding step is at least 1.5:1. In the converting step, the combined stream is converted to product fuel by a Fischer-Tropsch reaction. The fuel formed in the converting step comprises alkanol containing up to 5 carbon atoms. Up to 100% of byproduct stream produced in the converting step is fed to the forming step and combusted to produce heat which is consumed in the formation of the gaseous product stream in the forming step. Up to 100% of byproduct stream produced in the converting step is fed to the forming step and is reacted in the formation of the gaseous product stream in the forming step. The method additionally involves evaporating a feed stream of water with heat produced by the conversion of the mixed syngas stream in the converting step to produce steam and using up to all of the steam in the gasification of carbonaceous feed material; evaporating a feed stream of water with heat produced by the conversion of the mixed syngas stream in the converting step to produce steam and reacting up to all of the steam with fossil-fuel-based hydrocarbon feed in the forming step; treating a portion up to 100% of the gaseous product stream formed in the forming step to produce hydrogen-enriched stream which contains hydrogen at a hydrogen content greater than that of the gaseous product stream and which also contains carbon dioxide; adding the hydrogen-enriched stream to at least one of (i) the gaseous product stream, (ii) the syngas stream derived from carbonaceous feed material, or (iii) the mixed syngas stream; and removing carbon dioxide from the mixed syngas stream, from the hydrogen-enriched stream, or from any of streams (i) or (ii) to which the hydrogen-enriched stream is added; treating a portion up to 100% of the gaseous product stream formed in the forming step to produce hydrogen-enriched stream having hydrogen content greater than that of the gaseous product stream as well as carbon dioxide, and recovering hydrogen from the hydrogen-enriched stream. Preferred Components: The syngas stream that is derived from carbonaceous feed material is derived by gasification. The fossil-fuel-based hydrocarbon feed comprises methane, hydrocarbons containing up to 8 carbon atoms, liquefied petroleum gas. EXAMPLE - No suitable example given.