Abstract:
A solid oxide fuel cell system includes: a fuel cell unit including a solid oxide fuel cell and a mixer, the solid oxide fuel cell including an anode gas passage and a cathode gas passage, the mixer mixing an anode off gas discharged from the anode gas passage and a cathode off gas discharged from the cathode gas passage; a power-generating raw material supply device configured to supply a power-generating raw material to the fuel cell unit; a combustible gas passage, which extends from the power-generating raw material supply device to a downstream end of the anode gas passage; an oxidizing gas supply device configured to supply an oxidizing gas to the cathode gas passage; and a controller configured to, after electric power generation by the fuel cell unit is stopped, control the power-generating raw material supply device to supply the power-generating raw material in a volume more than or equal to a volume of the combustible gas passage to the combustible gas passage, and concurrently control the oxidizing gas supply device to supply the oxidizing gas to the cathode gas passage.
Abstract:
A hydrogen generator (1) includes: a tubular reformer (2) configured to generate a hydrogen-containing gas by a reforming reaction using a material gas; a CO reducer (4) configured to reduce carbon monoxide contained in the hydrogen-containing gas generated in the reformer; a tubular hydro-desulfurizer (3) provided at an outer periphery of the reformer and configured to remove a sulfur compound contained in the material gas; and a material gas supply passage(331) through which the material gas to be supplied to the hydro-desulfurizer flows. The material gas supply passage is configured to perform heat exchange with the CO reducer, and a material gas inlet port (341) of the hydro-desulfurizer is provided at an end surface closer to the CO reducer.
Abstract:
A fuel processor is provided with a mixing part including a mixing passage having a sufficient distance without increasing a pressure loss, at low cost with a small number of manufacturing steps. A partition plate (200) having tilted portions is provided in the air mixing space of the mixing part (16), thereby dividing the air mixing space into multiple passages (201, 202) so as to extend the mixing passage. Hence, high mixing capability can be obtained with a simple configuration.
Abstract:
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.