Patent ID: 7901819
Filing Date: 2011-03-08
Classification: C01B,H01M,Y02E,Y02P

Abstract:
1. A hydrogen fuel feeding system comprising: two reactors configured to be switched so as to carry out a reforming process for generating a fuel gas containing hydrogen from a reactant and a regeneration process for raising to a temperature at which a reforming reaction can be performed the temperature within the reactor, which was lowered by the reforming process, by reacting a fed gas for regeneration; a switching device that switched to configure alternate statuses of a first status of feeding the reactant to the reactor while exhausting the fuel gas and a second status of feeding the gas for regeneration to the reactor while exhausting a regeneration exhaust gas, wherein the switching device comprises a residual reforming gas feeding line that communicates a regeneration exhaust gas channel with a gas for a regeneration feeding line, and wherein the switching device switches the two reactors between the first status and the second status and the residual reforming gas feeding line can communicates the regeneration exhaust gas channel of one reactor with the gas for the regeneration feeding line of the other reactor; and a control apparatus programmed to switch the switching device so that when switching from the first status to the second status residual reforming gas remaining in the reactor before switching is not exhausted without treatment, wherein the control apparatus closes the regeneration exhaust gas channel and opens the residual reforming gas feeding line when switching from the first status to the second status, and wherein the control apparatus switches the switching device so that when one of the reactors is in the first status the other of the reactors is in the second status and when switching the one reactor from the first status to the second status, the control apparatus maintains the second status of the other reactor while closing the regeneration exhaust gas channel of the one reactor and opening the residual reforming gas feeding line of the one reactor.