METHOD FOR OPERATING FUEL GAS MANUFACTURING DEVICE

Title:

METHOD FOR OPERATING FUEL GAS MANUFACTURING DEVICE

Document Type and Number:

WIPO Patent Application WO/2018/174277

Kind Code:

A1

Abstract:

Provided is a method for operating a fuel gas manufacturing device, which stops the operation in a manner that the operation can be quickly restarted while preventing complication of a facility. When stopping the operation by stopping the supply of source gas to a desulfurizer 3, standby operation processing is performed in which: after the supply of source gas to the desulfurizer 3 and the discharge of fuel gas G to the outside are stopped, the fuel gas G is circulated and fluidized such that the total amount of the fuel gas G having passed through a moisture remover H is returned to the desulfurizer 3 through a circulating gas passage R; the fuel gas G is circulated and fluidized by a circulating drive unit 7 in a manner that the fuel gas G to be circulated and fluidized is heated by a heater to a set standby temperature in order to heat a modifier 5 to a temperature corresponding to an operation temperature for modification treatment; and the supply of moisture vapor J is continued in a manner that the supply amount of the moisture vapor J is set to be equal to or larger than the supply amount that can prevent precipitation of carbon by pyrolytic decomposition of the fuel gas G and smaller than the supply amount for the modification treatment.

Inventors:

ASONUMA HIDAKA (JP)
SHIMIZU TSUBASA (JP)
KANDA TAKAYA (JP)

Application Number:

PCT/JP2018/011889

Publication Date:

September 27, 2018

Filing Date:

March 23, 2018

Export Citation:

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Assignee:

OSAKA GAS CO LTD (JP)

International Classes:

C10L3/08

Domestic Patent References:

WO2017150600A1

2017-09-08

Foreign References:

JPH0726271A	1995-01-27
JPH04159393A	1992-06-02
US7866161B2	2011-01-11

Other References: