Disclosed are a quick-start system for preparing hydrogen via aqueous methanol, and hydrogen preparation method. The system comprises a liquid storage container, a raw material feeding device, a quick-start device, a hydrogen preparation equipment and a membrane separation device; the quick-start device comprises a first start device and a second start device; the first start device comprises a first heating mechanism and a first gasification pipeline, the first gasification pipeline is wound around the first heating mechanism; one end of the first gasification pipeline is connected to the liquid storage container, and methanol is fed into the first gasification pipeline via the raw material feeding device, for the first heating mechanism to heat and gasify; the hydrogen preparation equipment comprises a reforming chamber; the second start device comprises a second gasification pipeline, a main body of the second gasification pipeline is disposed in the reforming chamber; the methanol output by the first gasification pipeline and/or the second gasification pipeline heats the second gasification pipeline while heating the reforming chamber, to gasify the methanol in the second gasification pipeline. The present invention can be quickly started, while having less energy consumption and good practicability.

An ammonia fuel cell system capable of rapid adsorption-and-desorption switching by ammonia self-evaporation includes an ammonia decomposition reactor; an ammonia tank; a first heat exchanger; a fuel tank; a first blower; a second heat exchanger; an adsorption column device; a fuel cell; a gas circulation system; and an exhaust gas combustion system, wherein an outlet of the ammonia tank connects with an ammonia gas inlet of the ammonia decomposition reactor, wherein a decomposition gas outlet of the ammonia decomposition reactor, through the first heat exchanger, connects with an adsorption inlet of the adsorption column device, wherein a product produced by decomposition of ammonia gas in the ammonia decomposition reactor preheats a raw ammonia gas via the first heat exchanger, wherein the fuel tank connects with the ammonia decomposition reactor for feeding a fuel gas to the ammonia decomposition reactor.

The present invention relates to a method of reducing a catalyst utilized in a hydrogen plant. More specifically, the invention relates the reduction of a catalyst employed in the steam methane reformer.

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.

There is proposed a method for starting up a pre-reforming stage in an integrated reforming plant in which a hydrocarbonaceous feed stream, in particular natural gas, is converted into a reformation product containing carbon oxides, hydrogen and hydrocarbons. Before carrying out the start-up method, the catalyst contained in the pre-reforming stage is in an oxidized or passivated state. For its activation, the pre-reforming catalyst is charged with a methanol/steam mixture, from which by steam reformation of methanol in situ the hydrogen required for the activation of the catalyst is produced. Excess hydrogen is used for the hydrogen supply of the desulfurization stage arranged upstream of the pre-reforming stage.

Provided are methods for preparing hydrogen and solid carbon. Illustrative methods comprise providing a feedstock comprising gaseous hydrocarbons to a microwave-inert reaction vessel and/or a radio wave-inert reaction vessel. The reaction vessel has solid carbon, about 0% water and about 0% molecular oxygen inside the reaction vessel and the carbon inside the reaction vessel is operable to heat the feedstock comprising gaseous hydrocarbons. The carbon is then exposed to microwaves and/or radio waves until the solid carbon is at a temperature of at least 1200 Kelvin, thereby forming hydrogen and solid carbon. Once formed, the hydrogen and solid carbon are separated.

A system and a process for CO.sub.2 shift is provided. The system comprises a Reverse Water Gas Shift (RWGS) reactor, and a heat exchange reactor, HER. A first feed is converted in the RWGS reactor into a first product stream comprising CO. A second feed is arranged to be fed to a process side of the HER. At least a portion of the first product stream is arranged to be fed to a heating side of the HER such that heat from the first product stream is transferred to the process side of the HER, thereby allowing the conversion of the second feed to a second product stream comprising CO in the process side of the HER.

The disclosure discloses a reformer of a system for preparing hydrogen with an aqueous solution of methanol, a system for preparing hydrogen with an aqueous solution of methanol and a hydrogen production method. An end of a reformer of a system for preparing hydrogen with an aqueous solution of methanol has an initiation device, the initiation device includes a holder, the holder has a material input tube, a heating vaporization tube, an ignition device and a temperature detection device; the material input tube and the heating vaporization tube are communicated, the material enters the heating vaporization tube through the material input tube and is exported from an end of the heating vaporization tube; a position of the ignition device is corresponding to the end of the heating vaporization tube, the ignition device is applied to ignite the material exported from the heating vaporization tube.

A solid oxide fuel cell system includes: an igniting portion configured to ignite a raw material when starting up the solid oxide fuel cell system; a raw material supply portion configured to supply the raw material; a reforming air supply portion configured to supply reforming air; and an electric power generation air supply portion configured to supply electric power generation air. When starting up the solid oxide fuel cell system, the raw material supply portion supplies the raw material, and the electric power generation air supply portion supplies the electric power generation air. The igniting portion ignites the raw material. After the ignition, the reforming air supply portion supplies the reforming air. With this, the safety can be increased in consideration of characteristics in respective phases from the start-up of the solid oxide fuel cell system until the electric power generation.

A continuous process for reforming one or more hydrocarbons to a synthesis gas comprising hydrogen and carbon monoxide, the start-up phase of said process comprising (i) providing a reactor comprising a reaction zone which comprises a catalyst comprising a mixed oxide comprising cobalt and oxygen; (ii) continuously passing an inert gas stream through the reaction zone according to (i), said inert gas stream comprising one or more inert gases; (iii) continuously passing a reactant gas stream into the reaction zone obtained from (ii), wherein from 95 to 100 volume-% of the reactant gas stream passed into the reaction zone consist of the one or more hydrocarbons, carbon dioxide, and water; subjecting said reactant gas stream to reforming conditions in said reaction zone; and removing a product stream from said reaction zone, said product stream comprising hydrogen and carbon monoxide.