Title:
円筒式水蒸気改質器
Document Type and Number:
Japanese Patent JP4145785
Kind Code:
B2
Abstract:
A cylindrical steam reforming unit comprising a plurality of cylindrical bodies consisting of a first cylindrical body, a second cylindrical body and a third cylindrical body of successively increasing diameters disposed in a concentric spaced relation, a radiation cylinder disposed within and concentrically with the first cylindrical body, a burner disposed in the radial central portion of the radiation cylinder, and a reforming catalyst layer with a reforming catalyst filled in a gap between the first and second cylindrical bodies, wherein a CO shift catalyst layer and a CO removal catalyst layer are disposed in a gap between the second and third cylindrical bodies, the CO shift catalyst layer being formed in a gap with the direction of flow reversed at one axial end of the reform ing catalyst layer and through a heat recovery layer of predetermined length. According to this reforming unit, without internally disposing a heat insulation layer, a cooling mechanism or the like, the reforming catalyst layer, CO shift catalyst layer, and CO removal catalyst layer can be integrated, achieving various useful effects, including size and weight reductions and the shortening of startup time.
Inventors:
Toshiyasu Miura
Jun Komiya
Hiroshi Fujiki
Naohiko Fujiwara
Jun Komiya
Hiroshi Fujiki
Naohiko Fujiwara
Application Number:
JP2003501790A
Publication Date:
September 03, 2008
Filing Date:
June 03, 2002
Export Citation:
Assignee:
Tokyo Gas Co., Ltd.
International Classes:
C01B3/38; B01J8/04; B01J19/24; C01B3/48; H01M8/06; H01M8/10
Domestic Patent References:
| JP2000302410A | ||||
| JP2000247603A | ||||
| JP2000319006A | ||||
| JP2000136716A | ||||
| JP2001129402A |
Foreign References:
| WO2000063114A1 | ||||
| WO1998000361A1 | ||||
| WO2000048261A1 |
Attorney, Agent or Firm:
Hirokuni Kamo