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A gas conversion process comprising synthesis gas production, hydrocarbon synthesis and hydrogen production from the synthesis gas, also includes hydrodesulfurizing sulfur-containing hydrocarbon liquids separated from a mixture of natural gas and the liquids produced from a gas well. Hydrogen produc

A gas conversion process comprising synthesis gas production, hydrocarbon synthesis and hydrogen production from the synthesis gas, also includes hydrodesulfurizing sulfur-containing hydrocarbon liquids separated from a mixture of natural gas and the liquids produced from a gas well. Hydrogen produced from the synthesis gas is used for the hydrodesulfurization, to remove at least a portion of the sulfur as H.sub.2 S and form desulfurized hydrocarbon liquid. The hydrogen is produced from the synthesis gas by one or more of (i) physical separation means such as pressure swing adsorption and (ii) chemical means such as a water gas shift reactor. The synthesized hydrocarbons are upgraded by hydroconversion. A portion of the hydrogen produced from the synthesis gas may also be used for at least one of (i) hydrocarbon synthesis catalyst rejuvenation and the hydroconversion.

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[ What is claimed is:] [1.] A gas conversion process which comprises producing a mixture of natural gas and sulfur-containing, C.sub.4+ hydrocarbons from a gas well and separating said hydrocarbons from said natural gas which comprises hydrocarbon gas, forming a synthesis gas comprising a mixture of

[ What is claimed is:] [1.] A gas conversion process which comprises producing a mixture of natural gas and sulfur-containing, C.sub.4+ hydrocarbons from a gas well and separating said hydrocarbons from said natural gas which comprises hydrocarbon gas, forming a synthesis gas comprising a mixture of H.sub.2 and CO from said hydrocarbon gas, synthesizing hydrocarbons by contacting a portion of said synthesis gas with a hydrocarbon synthesis catalyst and reacting said H.sub.2 and CO in the presence of said catalyst at conditions effective to form hydrocarbons, at least a portion of which are upgraded by one or more hydroconversion operations, producing hydrogen from another portion of said synthesis gas and reacting said hydrogen with said sulfur-containing liquids in the presence of a hydrodesulfurization catalyst at reaction conditions effective to remove at least a portion of said sulfur as H.sub.2 S and form desulfurized hydrocarbon liquid.