Patent ID: 9492777
Filing Date: 2016-11-15
CPC Classification: B01D,C01B,H01M,Y02E

Claim Text:
1. A hydrogen generation device comprising: a reformer for generating a hydrogen-containing gas using a raw material; a first desulfurizer for adsorbing and desulfurizing a sulfur compound from the raw material supplied to the reformer; a second desulfurizer for hydrodesulfurizing the sulfur compound from the raw material supplied to the reformer; a first path used to supply the raw material to the reformer through at least the first desulfurizer; a second path used to supply the raw material to the reformer through only the second desulfurizer of the first desulfurizer and the second desulfurizer; a switch for performing switching between the first path and the second path; a third path used to supply the hydrogen-containing gas generated in the reformer to the second desulfurizer; a flow controller which selectively allows or inhibits a flow of the hydrogen-containing gas from an upstream end of the third path toward a downstream end of the third path; and a controller configured to, at least either before generation of the hydrogen-containing gas is stopped or when the hydrogen generation device is started, execute the following controls (i) and (ii) concurrently, while the reformer is generating the hydrogen-containing gas, (i) causing the switch to select the first path, and (ii) controlling the flow controller to allow the flow of the hydrogen-containing gas from the reformer to the second desulfurizer, wherein the controller executes the controls (i) and (ii) concurrently in a state in which a temperature of a hydrodesulfurization catalyst is a temperature at which hydrodesulfurization is enabled to proceed.