Fuel cell system and desulfurization unit for the same

摘要

A desulfurization unit for a fuel cell system includes a first desulfurizer arranged in a temperature environment ranging from 50° C. to 200° C. and accommodating a desulfurizing agent including a porous material serving as a base material, the desulfurizing agent exerting a desulfurization effect in a normal temperature range, the first desulfurizer adsorbing a sulfur compound included in a source gas in the temperature environment ranging from 50° C. to 200° C. when the source gas having a low dew point is supplied through a source gas passage to the first desulfurizer and when the source gas having a high dew point is supplied through the source gas passage to the first desulfurizer.

主权项

1. A desulfurization unit for a fuel cell system, the desulfurization unit comprising:
a first desulfurizer arranged in a temperature environment ranging from 50° C. to 200° C. and accommodating a desulfurizing agent including a porous material serving as a base material, the desulfurizing agent exerting a desulfurization effect in a normal temperature range, wherein the first desulfurizer is adapted to absorb a sulfur compound included in a source gas in the temperature environment ranging from 50° C. to 200° C. when the source gas having a low dew point is supplied through a source gas passage to the first desulfurizer and when the source gas having a high dew point is supplied through the source gas passage to the first desulfurizer; and a second desulfurizer accommodating a desulfurizing agent including a porous material serving as a base material, the desulfurizing agent exerting a desulfurization effect in a normal temperature range, wherein the second desulfurizer is arranged in a temperature environment that is lower than 50° C., and the second desulfurizer is positioned in series with the first desulfurizer and at a downstream side of the first desulfurizer in a flow direction of the source gas.