Power plants – Combustion products used as motive fluid – With combustible gas generator
Patent
1988-02-16
1989-12-05
Casaregola, Louis J.
Power plants
Combustion products used as motive fluid
With combustible gas generator
48197R, 55 73, 423230, F02C 328
Patent
active
048843962
ABSTRACT:
The present invention provides a desulfurizing agent comprising a porous oxide carrier, at least one of molybdenum oxide and tungsten oxide as a first component, supported on the carrier, and at least one of manganese oxide, cobalt oxide and nickel oxide as a second component, supported mainly on the surface of the first component. In a coal gasification system using the present desulfurizing agent and a power generation system using the purified gas therefrom, a reduction column for converting a portion of sulfur dioxide in the regenerated gas to hydrogen sulfide as a pretreatment means to a Claus reaction column can be eliminated when the desulfurizing agent is regenerated. Furthermore, in the present invention a desulfurizing agent capable of reacting with hydrogen sulfide to form a solid sulfur compound at a high temperature is supplied to a gasification furnace and the resulting sulfur compound is withdrawn from the gasification furnace as molten slag together with ashes of fine coal powder, where desulfurization can be attained without a Claus reaction column and without a reduction column. Such desulfurization is likewise applicable to a coal gasification system and a power generation system based on the coal gasification.
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Kida Eiji
Koyama Shuntaro
Miyamoto Tomohiko
Morihara Atsushi
Takahashi Sadao
Babcock-Hitachi Kabushiki Kaisha
Casaregola Louis J.
Hitachi , Ltd.
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