Abstract: A process starting from a hydrocarbon feedstock, and aiming to produce a synthesis gas suitable either for methanol synthesis or for other applications requiring a low H.sub.2 /CO ratio.In this process, the feedstock, supposed to be desulfurized, is divided into two fractions; a first fraction undergoes a primary steam reforming at high pressure and moderate temperature; the gas effluent from said primary steam reforming, as well as the second fraction of the feedstock, are combined and subsequently undergo a secondary reforming by reaction with a free-oxygen rich gas in a reactor operating under essentially adiabatic conditions.The synthesis gas, obtained as effluent from said secondary reforming, has a composition adjustable at will in a wide range, and therefore can be made as close as necessary to the stoichiometric composition required for methanol synthesis, or it can be made with a low H.sub.2 /CO ratio for other applications.

Abstract: A process starting from a hydrocarbon feedstock, and aiming to produce a synthesis gas suitable either for methanol synthesis or for other applications requiring a low H.sub.2 /CO ratio.In this process, the feedstock, supposed to be desulfurized, is divided into two fractions; a first fraction undergoes a primary steam reforming at high pressure and moderate temperature; the gas effluent from said primary steam reforming, as well as the second fraction of the feedstock, are combined and subsequently undergo a secondary reforming by reaction with an oxygen-containing gas in a reactor operating under essentially adiabatic conditions.The synthesis gas, obtained as effluent from said secondary reforming, has a composition adjustable at will in a wide range, and therefore can be made as close as necessary to the stoichiometric composition required for methanol synthesis, or it can be made with a low H.sub.2 /CO ratio for other applications.

Abstract: A process for the production of an oxygenated organic product, such as methanol, from a feedstock containing carbon, comprising the steps of: (a) gasifying the feedstock with high purity oxygen to obtain a raw synthesis gas stream comprising methane, hydrogen, and carbon oxides; (b) mixing the raw synthesis gas stream with a hydrogen-rich gas stream to form a final synthesis gas stream; (c) injecting the final synthesis gas stream into a synthesis loop, forming the oxygenated organic product in the loop and extracting from the loop a purge gas stream; (d) separating the purge gas cryogenically to form the hydrogen-rich gas stream, an argon-rich gas stream, and a methane-rich gas stream; and (e) recycling the hydrogen-rich gas stream to step (b).

Abstract: A process to produce ammonia from a hydrocarbon feedstock, involving basically the following steps:Dividing the feedstock into two fractions,Subjecting the first fraction to a primary steam reforming reaction, at high pressure and moderate temperature,Combining the effluent from the primary reforming with the second fraction of the feedstock, and subjecting the mixture thereof to a secondary adiabatic reforming reaction with an amount of air in excess to that needed for ammonia synthesis,Subjecting the synthesis gas produced to a CO shift conversion reaction, and then to CO.sub.