摘要:
A hydrogen generation device of the present invention comprises a first path (31) used to supply a raw material to a reformer (1) through at least a first desulfurization unit (2); a second path (32) used to supply the raw material to the reformer (1) through only the second desulfurization unit (3); a switch unit (6); a flow control unit (8) which selectively enables or inhibits a flow of the hydrogen-containing gas generated in the reformer 1 toward the second desulfurization unit (3); and a controller (12) configured to execute processing in such a manner that in at least either a time point before generation of the hydrogen-containing gas is stopped, or start-up, the switch unit 6 performs switching to select the first path (31), and the flow control unit (8) enables the flow of the hydrogen-containing gas, while the reformer 1 is generating the hydrogen-containing gas.
摘要:
Conventional hydrogen purification apparatuses cannot be used satisfactorily for applications in which much time is required for startup of the apparatus, and the apparatus is repeatedly started and stopped at frequent intervals because of complicated handling. In a hydrogen purification apparatus comprising at least a catalysis body removing carbon monoxide from a reformed gas containing hydrogen, carbon monoxide and steam, the catalyst body is constituted by a carrier comprised of a complex oxide in which at least one of Mo, W and Re is compounded with Zr, or comprised of an oxide of one of Mo, W, Re and Zr, and at least one of Pt, Pd, Rh and Ru carried on the surface of the carrier.
摘要:
A hydrogen generator including a raw material supplying unit supplying a raw material containing a sulfur component and composed of an organic compound, a water supplying unit supplying water, a reformer producing hydrogen gas, the reformer provided with a reforming catalyst to make the raw material and water undergo a reaction, and a carbon monoxide removing unit reducing the content of carbon monoxide in hydrogen gas produced in the reformer, wherein the reforming catalyst is constituted by a carrier composed of platinum and a metal oxide is provided.
摘要:
A hydrogen generating apparatus or the like is able to detect an excess water state or an excess steam state in the interior of a shift converter or a selective oxidation device. The hydrogen generating apparatus (120) comprise a hydrogen generator (118) including a reformer (100) configured to generate a reformed gas from a material and steam; a shift converter (103) configured to cause the reformed gas supplied from the reformer (100) to be subjected to a shift reaction; and a selective oxidation device (105) configured to decrease a concentration of carbon monoxide in the reformed gas after the shift reaction to a predetermined concentration or less; a temperature sensor (116, 117) configured to detect one of a temperature of the shift converter (103) and a temperature of the selective oxidation device (105); and a controller (205) configured to determine that excess water or excess steam exists in an interior of the hydrogen generator (118) when an increasing rate of the temperature detected by the temperature sensor is less than a predetermined threshold.
摘要:
A hydrogen generator (100) of the present invention includes: a raw material supplying device (4) configured to supply a raw material containing a sulfur constituent; a hydrogen supplying device (7) configured to generate hydrogen by electrolysis of water; a hydro-desulfurizer (5) configured to remove the sulfur constituent of the raw material by using the hydrogen generated by the hydrogen supplying device (7), the raw material being supplied from the raw material supplying device (4); and a reformer (1) configured to generate a hydrogen-containing gas by a reforming reaction of the raw material from which the sulfur constituent is removed by the hydro-desulfurizer (5).
摘要:
A hydrogen producing apparatus comprising: a reforming section having a reforming catalyst which causes a reaction between a carbon-containing organic compound as a feedstock and water; a feedstock supply section for supplying the feedstock to the reforming section; a water supply section for supplying water to the reforming section; a heating section for heating the reforming catalyst; a shifting section having a shift catalyst which causes a shift reaction between carbon monoxide and water contained in a reformed gas supplied from the reforming section; and a purifying section having a purifying catalyst which causes oxidation or methanation of carbon monoxide contained in a gas supplied from the shifting section, wherein the shift catalyst comprises a platinum group metal and a metal oxide.
摘要:
A hydrogen generating part is provided for reacting water and a raw material composed of carbon and hydrogen atoms to generate hydrogen gas, a raw material supply part is provided for supplying a raw material to the hydrogen generating part, a water supply part is provided for supplying water to the hydrogen generating part, a catalyst combustion part is provided, an air supply part is provided for supplying air to the catalyst combustion part, a path switching part is provided for switching raw material supply paths between the raw material supply part and the hydrogen generating part, a bypass path is provided for supplying a raw material to the catalyst combustion part from the path switching part, and a combustion gas path is provided for supplying combustion gas after the catalyst combustion part to the hydrogen generating part. The control part switches the path switching part, and the inside of the hydrogen generating part is replaced with combustion gas after the catalyst combustion part.
摘要:
The invention discloses a hydrogen generator (100A) comprising: a reformer (1) having a reforming catalyst (1a); a material gas supply device (13); an evaporator (3); a water supply device; and a controller (10) which controls the material gas supply device (13) and the water supply device to stop supplying of a material gas to the reformer (1) and supplying of water to the evaporator (3) and then controls the material gas supply device (13) to supply the material gas to the reformer (1) in a period during which residual water evaporates in at least either the evaporator (3) or the reformer (1).
摘要:
A hydrogen generator of the present invention includes: a raw material supplying device (4) configured to supply a raw material; a water supplying device (3) configured to supply water; an evaporator (23) configured to evaporate the water supplied from the water supplying device (3) to generate steam; a reformer (20) having a reforming catalyst which generates a hydrogen-containing gas by a reforming reaction using the raw material and the steam; a valve (12) disposed on a gas passage to cause the reformer (20) to be communicated with an atmosphere and block the reformer (20) from the atmosphere, the gas passage being located downstream of the reformer (20); and a controller (11) configured to stop supplying the water from the water supplying device (3), then continue to supply the raw material from the raw material supplying device (4) with the valve (12) open, and stop supplying the raw material from the raw material supplying device (4) and close the valve (12) before an inside of the reformer (20) is purged with the raw material.
摘要:
A fuel cell power generation system 100 for performing power generation using hydrogen-containing gas generated from a raw material containing a hydrocarbon component and an odorizer component includes a raw material supply section 4 for controlling a flow rate of the raw material; a water supply section 3 for supplying water; an adsorptive removal section 5 for causing the raw material to pass therethrough and adsorbing the odorizer component contained in the raw material; a reformer 1 for generating the hydrogen-containing gas by a reforming reaction of the raw material which has passed the adsorptive removal section and water supplied from the water supply section; a fuel cell 8 for performing power generation using the hydrogen-containing gas as a fuel; and an operating control section for, as an accumulated flow volume of the raw material supplied to the adsorptive removal section 5 from the raw material supply section 4 increases, decreasing the flow rate of the raw material to be supplied to the adsorptive removal section 5 from the raw material supply section 4, the flow rate being set with respect to an amount of power to be generated by the fuel cell 8.