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Title: Method and apparatus for enhancing the desulfurization of hot coal gas in a fluid-bed coal gasifier

Abstract

A process and apparatus for providing additional desulfurization of the hot gas produced in a fluid-bed coal gasifier, within the gasifier is described. A fluid-bed of iron oxide is located inside the gasifier above the gasification bed in a fluid-bed coal gasifier in which in-bed desulfurization by lime/limestone takes place. The product gases leave the gasification bed typically at 1600 to 1800 F and are partially quenched with water to 1000 to 1200 F before entering the iron oxide bed. The iron oxide bed provides additional desulfurization beyond that provided by the lime /limestone. 1 fig.

Inventors:
Issue Date:
Research Org.:
USDOE Morgantown Energy Technology Center, WV
OSTI Identifier:
6444452
Patent Number(s):
-US-A7177310
Application Number:
ON: DE89010096
Assignee:
US Dept. of Energy TIC; EDB-89-060547
Resource Type:
Patent
Resource Relation:
Other Information: Portions of this document are illegible in microfiche products
Country of Publication:
United States
Language:
English
Subject:
01 COAL, LIGNITE, AND PEAT; COAL GASIFICATION; HOT GAS CLEANUP; IRON OXIDES; SORPTIVE PROPERTIES; LIMESTONE; ABSORPTION; COOLING; DESIGN; DESULFURIZATION; HYDROGEN SULFIDES; POLLUTION CONTROL; WATER; CARBONATE ROCKS; CHALCOGENIDES; CHEMICAL REACTIONS; CONTROL; GASIFICATION; HYDROGEN COMPOUNDS; IRON COMPOUNDS; OXIDES; OXYGEN COMPOUNDS; PURIFICATION; ROCKS; SEDIMENTARY ROCKS; SULFIDES; SULFUR COMPOUNDS; SURFACE PROPERTIES; THERMOCHEMICAL PROCESSES; TRANSITION ELEMENT COMPOUNDS; 010404* - Coal, Lignite, & Peat- Gasification; 010800 - Coal, Lignite, & Peat- Waste Management

Citation Formats

Grindley, T. Method and apparatus for enhancing the desulfurization of hot coal gas in a fluid-bed coal gasifier. United States: N. p., 1988. Web.
Grindley, T. Method and apparatus for enhancing the desulfurization of hot coal gas in a fluid-bed coal gasifier. United States.
Grindley, T. Tue . "Method and apparatus for enhancing the desulfurization of hot coal gas in a fluid-bed coal gasifier". United States.
@article{osti_6444452,
title = {Method and apparatus for enhancing the desulfurization of hot coal gas in a fluid-bed coal gasifier},
author = {Grindley, T.},
abstractNote = {A process and apparatus for providing additional desulfurization of the hot gas produced in a fluid-bed coal gasifier, within the gasifier is described. A fluid-bed of iron oxide is located inside the gasifier above the gasification bed in a fluid-bed coal gasifier in which in-bed desulfurization by lime/limestone takes place. The product gases leave the gasification bed typically at 1600 to 1800 F and are partially quenched with water to 1000 to 1200 F before entering the iron oxide bed. The iron oxide bed provides additional desulfurization beyond that provided by the lime /limestone. 1 fig.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1988},
month = {4}
}