Abstract: The present invention provides a process of coproducing methanol and ammonia by using natural gas, LPG, butane, or naphtha as a raw material, having a methanol production process (A) composed of specific steps and an ammonia production process (B) also composed of specific steps.

Abstract: The present invention enables the coproduction of methanol and ammonia by using a remarkably smaller amount of raw material, natural gas, as compared with the case of independently producing either of methanol or ammonia.

Abstract: A device to reform a raw material gas into a synthesis gas rich in hydrogen and carbon monoxide is disclosed. The device includes a vessel, a floating head, a plurality of reaction tubes, inlets and outlets for raw material and heating gases, and a cooled fixed tube plate.

Abstract: A device to reform a raw material gas into a synthesis gas rich in hydrogen and carbon monoxide is disclosed. The device includes a vessel, a floating head, a plurality of reaction tubes, inlets and outlets for raw material and heating gases, and a cooled fixed tube plate.

Abstract: A reformer for obtaining a synthesis gas by partially oxidizing a carbon-containing raw material and then steam-reforming the oxidized raw material, includes: a reactor vessel, an oxidizing agent feed pipe and a carbon-containing raw material feed pipe, wherein the central axis of the oxidizing agent feed pipe and the central axis of the carbon-containing raw material feed pipe intersect with each other downstream of the outlet of the oxidizing agent feed pipe in an oxidizing agent flowing direction and downstream of the outlet of the carbon-containing raw material feed pipe in a carbon-containing raw material flowing direction.

Abstract: A process for producing a synthesis gas which comprises the steps of mixing a desulfurized light natural gas with steam; pre-heating the mixed gas; carrying out a first reforming reaction at a temperature of 500 to 750° C. under adiabatic conditions by bringing the gas into contact with a catalyst having a specific porosity in which a specific amount of nickel or a platinum group metal is contained as an active component in a carrier composed of CaO and Al2O3 and containing a specific amount of CaO, at least part of CaO forming a compound together with Al2O3, or a catalyst in which a specific amount of nickel is contained in an &agr;-alumina carrier containing 98% by weight or more of aluminum oxide and having a specific porosity; and then carrying out a second reforming reaction in reformer tubes in a heating furnace. The light natural gas may be a gas obtainable by reacting a desulfurized heavy natural gas with steam.

Abstract: The present invention provides a process for producing methanol which gives reduced construction costs of plant and improved energy efficiency of the whole plant. According to this process for producing methanol, methanol is manufactured by subjecting a feedstock mixed gas comprising a feedstock gas and steam to primary reforming, to secondary reforming, and then to methanol synthesis reaction.