LIQUEFIED PETROLEUM GAS FOR LP GAS FUEL CELL, METHOD OF DESULFURIZING THE SAME AND FUEL CELL SYSTEM

Title:

LIQUEFIED PETROLEUM GAS FOR LP GAS FUEL CELL, METHOD OF DESULFURIZING THE SAME AND FUEL CELL SYSTEM

Document Type and Number:

WIPO Patent Application WO/2006/120981

Kind Code:

A1

Abstract:

A petroleum gas fuel for LP gas fuel cell to be fed to a fuel cell system according to a natural vaporization supply method, wherein the content of C₂ hydrocarbon compounds is 3 vol.% or less, the content of C₄ hydrocarbon compounds 3 vol.% or less, the total sulfur concentration 10 mass ppm or less, the concentration of sulfur of carbonyl sulfide 2 mass ppm or less, the concentration of sulfur of methylmercaptan 3 mass ppm or less, the concentration of sulfur of sulfur compounds whose boiling point is equal to or higher than that of dimethyl disulfide 2 mass ppm or less, the methanol concentration 50 mass ppm or less, the water concentration 50 mass ppm or less and the balance constituted of C₃ hydrocarbon compounds. In the petroleum gas fuel for LP gas fuel cell, desulfurizing agents even when added in a minimum amount, efficiently function to thereby attain an enhancement of desulfurization effect and prevent damaging of a reforming catalyst lying in a reformer for hydrogen production disposed downstream of a desulfurizer. Thus, the petroleum gas fuel for LP gas fuel cell realizes stable driving of the reformer and stable electric power generation. Further, there is provided a method of desulfurizing the petroleum gas fuel, and provided a fuel cell system wherein use is made of a hydrogen-containing gas obtained by reforming of liquefied petroleum gas fuel having been desulfurized by the use of this desulfurization method.

Inventors:

TAKEGOSHI GAKUJI (JP)
KATSUNO HISASHI (JP)

Application Number:

PCT/JP2006/309174

Publication Date:

November 16, 2006

Filing Date:

May 02, 2006

Export Citation:

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Assignee:

IDEMITSU KOSAN CO (JP)
TAKEGOSHI GAKUJI (JP)
KATSUNO HISASHI (JP)

International Classes:

C10L3/12; B01J20/02; B01J20/18; C10L3/10; H01M8/06

Domestic Patent References:

WO2004058927A1

2004-07-15

Foreign References:

JP2003290660A	2003-10-14
JP2005060422A	2005-03-10
JP2004130216A	2004-04-30

Other References: