摘要:
An object is to provide a hydrogen generation apparatus in which water can be helically flow down in an evaporator without fail, a method for manufacturing the hydrogen generation apparatus, and a fuel cell system using the hydrogen generation apparatus. The hydrogen generation apparatus includes a reformer configured to generate a hydrogen-containing gas; an evaporator 8 which includes an inner tube 9 and an outer tube 10, and a deformed hollow helical member 18 helically interposed between the inner tube 9 and the outer tube 10 and which is configured to evaporate the water supplied to the reformer 8; and a heat source 2 configured to evaporate the water. The evaporator 8 is configured such that the water is supplied to a helical flow channel 8A defined by the inner tube 9, the outer tube 10, and the hollow helical member 18 and evaporated by the heat source 2.
摘要:
A hydrogen generating device including a temperature adjustment section 8 for controlling a temperature of a hydrogen-containing gas to be introduced from a reforming section 1 into carbon monoxide reducing sections 2 and 3, the temperature adjustment section 8 including: a heat exchange section 26 having an air path 11 for allowing a cooling air to pass therethrough; an air intake portion 10 having an opening for taking the cooling air into the air path 11; and an air discharging portion 12 having an opening for discharging the cooling air out of the air path 11, wherein the opening of the air intake portion 10 and that of the air discharging portion 12 are facing in a same direction, and the same direction is a vertically upward direction or a vertically downward direction.
摘要:
Provided is a hydrogen generator capable of suppressing degradation in capability of a hydrogen generator which is caused by crush of particulate reforming catalyst and of suppressing decrease in reforming efficiency due to decrease in heat transfer efficiency of a catalyzing portion which is caused by the crush of the particulate reforming catalyst. A hydrogen generator comprises a catalyzing portion 50 having particulate reforming catalyst P, and a combusting portion 5 for heating the catalyzing portion 50, the hydrogen generator being configured to generate a reformed gas containing hydrogen while flowing a material gas containing steam in a direction in which the catalyzing portion 50 extends. The catalyzing portion 50 includes a separating member 40. The separating member 40 is disposed on a separating cross-section which is a cross-section of the catalyzing portion 50 in a direction perpendicular to the direction in which the catalyzing portion 50 extends. A plurality of air holes 40D having a shape to inhibit passage of the particulate reforming catalyst P are provided on the separating member 40. An opening having a shape to permit passage of the particulate reforming catalyst P is provided on the separating cross-section.
摘要:
A hydrogen generator comprises therein a reformer, a Shifter, a material flow passage with first evaporator through which a material is supplied to the reformer, a reformed gas flow passage for leading the reformed gas derived from the reformer to the Shifter, a shifted gas flow passage through which a shifted gas derived from the Shifter is taken out, and second steam flow passage formed adjacent to the reformed gas flow passage to be located at upstream side of the Shifter. The second evaporator is provided within the second steam flow passage. A part of heat of the reformed gas is recovered as latent heat by the second evaporator. Thereby, temperature of the Shifter is controlled.
摘要:
A hydrogen generator of the invention includes: a reformer for generating a hydrogen-rich gas from a feed gas and water by a reaction using a reforming catalyst body and sending it out from an outlet port; a material feed system for feeding the feed gas to the reformer; a burner for supplying, to the reforming catalyst body, heat generated by mixing a fuel gas with air and burning it; and an air supply system for supplying air to the burner; wherein, when purging an interior of the reformer using the feed gas in shutting down the hydrogen generator, an amount of the air supplied is increased to put out a flame of the burner, and a purge gas sent out from the outlet port by the purging is mixed and diluted with the air in the burner and is discharged outside.
摘要:
In order to realize a catalytic combustion apparatus capable of effectively utilizing radiation from a surface of a catalytic element, providing a higher efficiency of heat exchange, and characterized in superior characteristics of an exhaust gas, a catalytic combustion apparatus according to the invention comprises a catalytic element 7 in the shape of a plate consisting of multiple through-holes for combusting a mixed gas of a fuel gas and air and a combustion chamber 6 accommodating the catalytic element 7, and incorporating a radiated heat receiving plate 11 that is positioned in opposition to either one of two surfaces of the catalytic element 7 as a part of its side walls.
摘要:
A hydrogen generation apparatus 200 includes: an evaporating part 7; a reforming reaction part 9A connected to the downstream side of the evaporating part; a carbon monoxide reducing part 20 provided downstream from the reforming reaction part; and a gas guiding part 21 disposed between the reforming reaction part and the carbon monoxide reducing part and configured to guide a gas that has passed through the reforming reaction part to the carbon monoxide reducing part. The evaporating part and the carbon monoxide reducing part are arranged to be adjacent to each other such that, at least, a part of the evaporating part and a part of the carbon monoxide reducing part are heat exchangeable with each other. The evaporating part is configured such that a heat exchange amount at a portion of the evaporating part, the portion corresponding to the carbon monoxide reducing part, is less than a heat exchange amount at a portion of the evaporating part, the portion not corresponding to the carbon monoxide reducing part.
摘要:
Provided is a hydrogen generator capable of suppressing degradation in capability of a hydrogen generator which is caused by crush of particulate reforming catalyst and of suppressing decrease in reforming efficiency due to decrease in heat transfer efficiency of a catalyzing portion which is caused by the crush of the particulate reforming catalyst. A hydrogen generator comprises a catalyzing portion 50 having particulate reforming catalyst P, and a combusting portion 5 for heating the catalyzing portion 50, the hydrogen generator being configured to generate a reformed gas containing hydrogen while flowing a material gas containing steam in a direction in which the catalyzing portion 50 extends. The catalyzing portion 50 includes a separating member 40. The separating member 40 is disposed on a separating cross-section which is a cross-section of the catalyzing portion 50 in a direction perpendicular to the direction in which the catalyzing portion 50 extends. A plurality of air holes 40D having a shape to inhibit passage of the particulate reforming catalyst P are provided on the separating member 40. An opening having a shape to permit passage of the particulate reforming catalyst P is provided on the separating cross-section.
摘要:
A hydrogen generator of the invention includes: a reformer for generating a hydrogen-rich gas from a feed gas and water by a reaction using a reforming catalyst body and sending it out from an outlet port; a material feed system for feeding the feed gas to the reformer; a burner for supplying, to the reforming catalyst body, heat generated by mixing a fuel gas with air and burning it; and an air supply system for supplying air to the burner; wherein, when purging an interior of the reformer using the feed gas in shutting down the hydrogen generator, an amount of the air supplied is increased to put out a flame of the burner, and a purge gas sent out from the outlet port by the purging is mixed and diluted with the air in the burner and is discharged outside.
摘要:
A hydrogen generation device of the present includes: a reforming unit for steam-reforming raw material containing at least carbon atoms and hydrogen atoms to generate a hydrogen-containing gas; a raw material supply unit for supplying a raw material to the reforming unit; a steam generation unit for supplying steam to the reforming unit, a steam generation unit temperature detection unit for detecting the temperature of the steam generation unit; a heating unit for supplying a combustion gas for successively heating the reforming unit and the steam generation unit by heat transfer, and a control unit. The control unit controls a raw material supply amount from the raw material supply unit and a water supply amount from a water supply unit and controls one of the amount of the air to the heating unit, the amount of a fuel to the heating unit, and the amount of the raw material to the reforming unit so that no water remains in the steam generation unit according to the detected temperature from the steam generation unit temperature detection unit. Thus, it is possible to operate the hydrogen generation device without leaving water in the steam generating unit and to provide a hydrogen generation device operation method having a high reliability and economy and a hydrogen generation device using the same as well as a fuel cell generation system using the hydrogen generation device.