Hydrogen generation apparatus and fuel cell system

摘要

A hydrogen generation apparatus (100) includes: a reformer (10) configured to generate a hydrogen-containing gas by using a raw material and steam; a raw material passage (21) through which the raw material that is supplied to the reformer (10) flows; a hydrodesulfurizer (13) provided downstream from a most downstream valve (11) on the raw material passage (21) and configured to remove a sulfur compound from the raw material; a sealer (15) provided on a passage (24) downstream from the reformer (10) and configured to block communication between the reformer (10) and the atmosphere; and a depressurizer (16) provided on the raw material passage (21) at a portion connecting the hydrodesulfurizer (13) and the reformer (10) and configured to release, to the atmosphere, pressure in the reformer (10) that has increased after the sealer (15) is closed.

主权项

1. A hydrogen generation apparatus comprising:
a reformer configured to generate a hydrogen-containing gas by using a raw material and steam; a raw material passage through which the raw material that is supplied to the reformer flows, one end of the raw material passage being connected to the reformer; a most downstream valve disposed on the raw material passage; a hydrodesulfurizer provided downstream from the most downstream valve on the raw material passage, configured to remove a sulfur compound from the raw material, and the raw material passage passes through the hydrodesulfurizer; a sealer provided on a passage downstream from the reformer and configured to block communication between the reformer and an outside of the hydrogen generation apparatus; and a depressurizer provided on the raw material passage at a portion connecting the hydrodesulfurizer and the reformer and configured to release, to an atmosphere, pressure in the reformer that has increased after the sealer is closed, wherein no valve is provided on the raw material passage between the hydrodesulfurizer and the reformer.