SINGLE-PIPE CYLINDRICAL REFORMER AND OPERATION METHOD THEREFOR

Title:

SINGLE-PIPE CYLINDRICAL REFORMER AND OPERATION METHOD THEREFOR

Document Type and Number:

WIPO Patent Application WO/2000/063114

Kind Code:

A1

Abstract:

A single-pipe cylindrical reformer comprising a cylindrical inner tube (68), a group of cylindrical intermediate tubes (60), a cylindrical radiating tube (14), a burner (18) and a steam generator (34), all provided inside a cylindrical outer tube (10), wherein axial ends of the outer and inner tubes opposite to a burner fixing position have double-bottom structures, and tubular passages are formed in layers between the inner tube, the group of intermediate tubes and the outer tubes so as to serve respectively as a reforming catalyst layer (13), a CO modification catalyst layer (11) and/or CO selection oxidizing catalyst layer (12), a cooling fluid passage (48) for introducing a reforming material gas and water, and an air passage (42). During the operation of the reformer, if an internal temperature is up to a preset temperature, a saturated or superheated steam is supplied from the steam generator (34), and, if it exceeds the preset temperature, a moist steam is supplied. Since the reformer is small in size, quick in starting, and high in operating efficiency, and can produce a reformed gas of low CO concentration, it is optimal for a combination with a solid polymer fuel cell.

More Like This:

JP2733845	[Title of Invention] Reformer for Fuel Cell
JPH07101614	[Title of the Invention] A fuel cell integrated with a steam reformer

Inventors:

MIURA TOSHIYASU (JP)
SHIRASAKI YOSHINORI (JP)

Application Number:

PCT/JP2000/002581

Publication Date:

October 26, 2000

Filing Date:

April 20, 2000

Export Citation:

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Assignee:

TOKYO GAS CO LTD (JP)
MIURA TOSHIYASU (JP)
SHIRASAKI YOSHINORI (JP)

International Classes:

B01B1/00; B01J8/02; B01J8/04; B01J8/06; C01B3/38; C01B3/48; C01B3/58; H01M8/06; (IPC1-7): C01B3/38; B01J8/06; H01M8/06; H01M8/10

Foreign References:

JPH07240224A	1995-09-12
JPH07291603A	1995-11-07
US4692306A	1987-09-08
JPH10167701A	1998-06-23
JPS6445736U	1989-03-20
JPH09278402A	1997-10-28

Other References: