摘要:
A hydrogen generation apparatus according to the present invention includes: a first desulfurizer (1); a second desulfurizer (2); a reformer (3) configured to generate a hydrogen-containing reformed gas from a raw material gas from which sulfur has been removed by at least one of the first desulfurizer (1) and the second desulfurizer (2); and a recycle passage (6) through which a part of the reformed gas generated by the reformer (3) is mixed into the raw material gas that is to be supplied to the second desulfurizer (2). The hydrogen generation apparatus is configured such that after installation or maintenance of the hydrogen generation apparatus, the raw material gas is supplied to the reformer (3) through the first desulfurizer (1) until a catalyst in the second desulfurizer (2) is activated by a mixed gas of the reformed gas supplied through the recycle passage (6) and the raw material gas, and after the catalyst in the second desulfurizer (2) is activated, the raw material gas is supplied to the reformer (3) through the second desulfurizer (2).
摘要:
A hydrogen generation apparatus and a fuel cell system including: a reformer (1) configured to generate a hydrogen-containing gas by causing a reforming reaction of a raw material; a hydrodesulfurizer (4) configured to remove a sulfur compound from the raw material; an adsorption desulfurizer (3) configured to remove a sulfur compound from the raw material; a first raw material passage (15) through which the raw material that is supplied to the reformer not through the adsorption desulfurizer but through the hydrodesulfurizer flows; a second raw material passage (16) through which the raw material that is supplied to the reformer through the adsorption desulfurizer flows; a switch (17, 18) configured to switch, between the first raw material passage and the second raw material passage, a raw material flowing passage through which the raw material flows; and a controller (12) configured such that when the reformer is generating the hydrogen-containing gas, the controller sets the raw material flowing passage to the first raw material passage by means of the switch if an oxygen concentration in the raw material is in a first state where the oxygen concentration is relatively low, and the controller sets the raw material flowing passage to the second raw material passage by means of the switch if the oxygen concentration in the raw material is in a second state where the oxygen concentration is relatively high.
摘要:
A method of operating a fuel cell system (100) comprises the steps of: generating a hydrogen-containing gas from a gas containing at least one of a nitrogen gas and a nitrogen compound, by a hydrogen generator (2); removing ammonia from the hydrogen-containing gas; detecting a temperature of the hydrogen-containing gas from which the ammonia has been removed; and starting supplying of the hydrogen-containing gas from the hydrogen generator (2) to the fuel cell (7), when the detected temperature of the hydrogen-containing gas is equal to or higher than a predetermined threshold.
摘要:
A solid oxide fuel cell system includes: an igniting portion (8) configured to ignite a raw material when starting up the solid oxide fuel cell system; a raw material supply portion (10) configured to supply the raw material; a reforming air supply portion (11) configured to supply reforming air; and an electric power generation air supply portion (12) configured to supply electric power generation air. When starting up the solid oxide fuel cell system, the raw material supply portion (10) supplies the raw material, and the electric power generation air supply portion (12) supplies the electric power generation air. The igniting portion (8) ignites the raw material. After the ignition, the preforming air supply portion (11) 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.
摘要:
A hydrodesulfurization device (2) comprises a hydro-desulfurizer (3) configured to remove a sulfur component from a raw material and a heater (4) configured to heat the hydro-desulfurizer (3); wherein the hydro-desulfurizer (3) includes a plurality of blocks (31) formed by division in a circumferential direction and disposed annularly around an outer periphery of the heater (4); wherein the hydro-desulfurizer (3) is configured such that the raw material having passed through inside of each of the blocks (31) moves to its adjacent block (31); and wherein the hydro-desulfurizer is configured such that adjacent blocks (31) are communicated with each other and the raw material flows in the adjacent blocks (31) in opposite directions.
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 desulfurizer is provided, which enables more easy replacement of a desulfurizing agent, and enables suppressing degradation of a desulfurizing agent during replacement. A desulfurizer includes an outer container 201 having an outer-container inlet 203 and an outer-container outlet 204, and an inner container 208 that has a desulfurizing section 221 filled with a desulfurizing agent 209 removing an odor component in material, and is removably disposed in the outer container 201, wherein the inner container 208 has an inner-container inlet 211 communicated to the outer-container inlet 203, an inner-container outlet 212 communicated to the outer-container outlet 204, and seal members 218 provided in the inner-container inlet 211 and the inner-container outlet 212 respectively, and when the inner container 208 is disposed in the outer container 201, each of the seal members 218 is deformed by an effect of each of the outer-container inlet 203 and the outer-container outlet 204, so that communication is made between the outer-container inlet 203 and the inner-container inlet 211, and between the inner-container outlet 212 and the outer-container outlet 204.
摘要:
A hydrogen generator of the present invention includes: a reformer (20) configured to generate a hydrogen-containing gas by a reforming reaction between a raw material and water and include a reforming catalyst; a reforming temperature detector (18) configured to detect a temperature of the reforming catalyst; a heater (2) configured to combust at least a part of the hydrogen-containing gas to supply heat necessary for the reforming reaction to the reformer (20); a combustion detector (22) configured to detect a combustion state of the heater (2); a raw material supplier (4) configured to supply the raw material; a water supplier (3) configured to supply the water; and an operation controller (16). When stopping the hydrogen generator, the operation controller (16) causes the raw material supplier (4) to stop operating, the operation controller (16) causes the water supplier (3) to stop operating in a case where the combustion detector (22) detects extinction of flame, and the operation controller (16) causes the raw material supplier (4) to start operating to supply the raw material to the hydrogen generator in a case where the reforming temperature detector (18) detects a temperature equal to or lower than a reform replacement reference temperature.
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.