HYDROGEN PRODUCTION SYSTEM, AND STARTING AND STOPPING METHOD THEREFOR
PROBLEM TO BE SOLVED: To provide a hydrogen production system which can continue running for a long time while repeating starting-stopping by preventing the degradation of a reforming catalyst and a CO modification catalyst by always keeping the inside of the system to be in a reducing atmosphere fr...
Saved in:
Main Authors | , , , , |
---|---|
Format | Patent |
Language | English |
Published |
04.11.2004
|
Edition | 7 |
Subjects | |
Online Access | Get full text |
Cover
Loading…
Summary: | PROBLEM TO BE SOLVED: To provide a hydrogen production system which can continue running for a long time while repeating starting-stopping by preventing the degradation of a reforming catalyst and a CO modification catalyst by always keeping the inside of the system to be in a reducing atmosphere from the start of stopping to the stopped state and from the start of operation to the steady-state operation; an operation method for the same; and a fuel cell system. SOLUTION: In the hydrogen production system, a CO modification section and a CO removal section are connected in this order to a steam reformer having a burning section and a reforming section. At the outlet conduit of the CO modification section, a valve is arranged. When the system is stopped, the valve is closed and the supply of a raw material gas and water to the reforming section is stopped. When the reforming section and the CO modification section reach a specified temperature or lower, the valve is opened to supply the raw material gas to both the reforming section and the CO modification section to purge the reformed gas. COPYRIGHT: (C)2005,JPO&NCIPI |
---|---|
Bibliography: | Application Number: JP20030100485 |