Method for improving efficiency of an existing ammonia synthesis gas plant or a new ammonia synthesis gas plant by establishing a combination of secondary steam reforming using oxygen from electrolysis of water for the production of ammonia synthesis gas.

Method for the preparation of ammonia synthesis gas based on a combination of autothermal reforming and electrolysis of water.

A method for improving thermal efficiency of steam production in a steam reforming based syngas plant is provided. In one embodiment, the method can include the steps of: preheating a hydrocarbon feed stream in a first heat exchanger from a first temperature to a second temperature; preheating the hydrocarbon feed stream in a second heat exchanger to a third temperature, wherein the third temperature is greater than the second temperature; introducing the hydrocarbon feed stream in the presence of steam to a steam methane reformer under conditions effective for producing a product stream comprising hydrogen, carbon oxides, and water vapor; and exchanging heat between the product stream and a boiler feed water stream in a third heat exchanger, wherein prior to exchanging heat with the product stream, the boiler feed water stream is used to provide the preheating to the hydrocarbon feed stream in the first heat exchanger.

A reforming device 1 for producing a reformed gas from a methane-containing gas containing methane and carbon dioxide includes a reforming reaction tube 10 containing a catalyst layer 12 filled with a reforming catalyst 12a for reforming the methane-containing gas, and a multilayer pipe 103 for spraying a cooling fluid to an outer peripheral surface of the reforming reaction tube 10 at a position corresponding to a gas inlet of the catalyst layer 12 in a length direction of the catalyst layer 12.

The present invention relates to reactor tubes packed with a catalyst system employed to deliberately bias process gas flow toward the hot tube segment and away from the cold segment in order to reduce the circumferential tube temperature variation.

Method for the preparation of synthesis gas combining electrolysis of water, tubular steam reforming and autothermal reforming of a hydrocarbon feed stock.

A hydrogen production apparatus including a desulfurizer, a reformer, a CO transformer a gas flow path, and a purge gas supply path which is provided where a purge gas is supplied to an upstream side of a pressure feeding apparatus in the gas flow path, prior to a stopping operation, a purging step of replacing gas within the gas flow path with the purge gas and filling the purge gas into the gas flow path is performed, and in a start-up operation in which a heating means is operated to increase the temperature of the gas within the gas flow path, which is performed prior to a hydrogen purification operation, a pressure increasing step of supplying the purge gas from the purge gas supply path to the closed circulation circuit and increasing the pressure within the closed circulation circuit is performed.

A burner for producing synthesis gas by partial oxidation of liquid or gaseous, carbon-containing fuels in the presence of an oxygen-containing oxidant and a moderator, which burner can be operated uncooled, i.e. without a fluid coolant being passed through the burner, is proposed. Steam or carbon dioxide or else mixtures of these materials are used as moderator. This is achieved by the feed channels being configured so that mixing of the fuel, the moderator and the oxidant occurs only outside the burner.

Process and apparatus for producing a H.sub.2-containing product and a CO-containing product with CO-containing product turndown capability. The H.sub.2-containing product is produced in a process train with a shift reactor and pressure swing adsorption unit. The CO-containing product is produced in a process train with a CO.sub.2 removal unit and a cryogenic separation unit. During the CO-containing product turndown mode, a portion or all of the CO-containing product is passed to the shift reactor in the H.sub.2-containing product train to form additional H.sub.2.

A method for producing ethylene and methanol comprising contacting fuel gas and oxidant gas to produce combustion product; contacting hydrocarbons and combustion product to produce pyrolysis product comprising unconverted hydrocarbons, acetylene, ethylene, CO, H.sub.2, H.sub.2O, CO.sub.2; separating pyrolysis product into CO.sub.2 stream and CO.sub.2 free product comprising unconverted hydrocarbons, acetylene, ethylene, CO, H.sub.2; contacting a first portion of CO.sub.2 free product with aprotic polar solvent to produce acetylene solution and first gas stream comprising unconverted hydrocarbons, ethylene, CO, H.sub.2; contacting acetylene solution with a second portion of CO.sub.2 free product to produce hydrogenation product comprising aprotic polar solvent, unconverted hydrocarbons, ethylene, CO, H.sub.2; separating hydrogenation product into aprotic polar solvent stream and second gas stream comprising unconverted hydrocarbons, ethylene, CO, H.sub.2; separating second gas stream into ethylene stream and third gas stream comprising unconverted hydrocarbons, CO, H.sub.2; and introducing first and/or third gas streams to a reactor to produce methanol.