DEVICE FOR PRODUCING HYDROGEN AND METHOD OF OPERATING THE SAME

WIPO Patent Application WO/2001/073878

A1

A method for operating a device for producing hydrogen for use in a fuel cell system for electric power generation, which comprises stopping the device by a procedure wherein the flow rate of a hydrocarbon fuel is gradually reduced and simultaneously the flow rate of water is gradually increased, while maintaining the flow rate of an oxidizing gas at a constant level, and water and the oxidizing gas are stopped after the hydrocarbon fuel is stopped. The method allows the avoidance of the deactivation of a catalyst due to the increase of its temperature beyond the limitation of heat resistance, the danger of the formation of a mixture of a hydrocarbon fuel as a raw material with an oxidizing gas containing oxygen, and the like, which may be caused when flow rates of the hydrocarbon fuel, the water and the oxidizing gas are randomly reduced.

FUJII YASUHIRO (JP)
HOSAKA MASATO (JP)
TOMIZAWA TAKESHI (JP)
UKAI KUNIHIRO (JP)
TAGUCHI KIYOSHI (JP)
SHONO TOSHIYUKI (JP)
YOSHIDA YUTAKA (JP)
KITAGAWA KOICHIRO (JP)

PCT/JP2001/002375

October 04, 2001

March 23, 2001

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MATSUSHITA ELECTRIC IND CO LTD (JP)
FUJII YASUHIRO (JP)
HOSAKA MASATO (JP)
TOMIZAWA TAKESHI (JP)
UKAI KUNIHIRO (JP)
TAGUCHI KIYOSHI (JP)
SHONO TOSHIYUKI (JP)
YOSHIDA YUTAKA (JP)
KITAGAWA KOICHIRO (JP)

B01J8/00; B01J8/02; C01B3/38; C01B3/40; H01M8/06; B01J21/04; B01J23/40; B01J23/70; B01J37/02; (IPC1-7): H01M8/04; C01B3/38; H01M8/06

JPH02132766A	1990-05-22
JP2000063104A	2000-02-29
JP2001158602A	2001-06-12
JP2000095504A	2000-04-04

Ishii, Kazuo (Kitahama 2-chome Chuo-ku Osaka-shi, Osaka, JP)

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