Spox-enhanced process for production of synthesis gas

A process for producing synthesis gas comprising: providing a feed gas stream containing drocarbonada hi-H2S-containing hydrocarbon li Gero and H2S, wherein the molar ratio H2S: light hydrocarbon is about 1:10 to about 2: 3; mixing said gas stream hydro-carbon containing H2S with a stream containing O2 to form a stream of reactant gas supply, said stream of reactant gas having a molar ratio CH4: O2 of about 1, 5: 1 to about 2, 2: 1; passing said stream of reactant gas over a catalyst such that a portion of said reactant gas in contact with said catalyst last-te no more than about 10 milliseconds, wherein di-cho catalyst comprises rhodium and samarium on a support refractory; maintaining conditions promoting reaction temperature, molar ratios of the components gasreaccionante, and flow rate such that a gaseous product stream comprising CO, H2, 1 / x Sx and H2O is obtained, in which x = 2, 6 or 8; cooling said gaseous product stream to the tem perature-condensation of elemental sulfur, or lower, such that elemental sulfur product of said current condenses and a product stream is obtained at least partially desulfurized gaseous; and recovering syngas product of said current.