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Title: Method 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. 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.degree. to 1800.degree. F. and are partially quenched with water to 1000.degree. to 1200.degree. F. before entering the iron oxide bed. The iron oxide bed provides additional desulfurization beyond that provided by the lime/limestone.

Inventors:
 [1]
  1. (Morgantown, WV)
Issue Date:
Research Org.:
National Energy Technology Laboratory, Pittsburgh, PA, and Morgantown, WV
OSTI Identifier:
866969
Patent Number(s):
4832704
Assignee:
United States of America as represented by United States (Washington, DC) NETL
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
method; enhancing; desulfurization; hot; coal; gas; fluid-bed; gasifier; process; apparatus; providing; additional; produced; iron; oxide; located; inside; gasification; bed; in-bed; lime; limestone; takes; product; gases; leave; typically; 1600; degree; 1800; partially; quenched; water; 1000; 1200; entering; provides; provided; provides additional; located inside; product gases; coal gasifier; product gas; iron oxide; hot gas; coal gas; bed coal; gas produced; hot coal; fluid-bed coal; /48/

Citation Formats

Grindley, Thomas. Method for enhancing the desulfurization of hot coal gas in a fluid-bed coal gasifier. United States: N. p., 1989. Web.
Grindley, Thomas. Method for enhancing the desulfurization of hot coal gas in a fluid-bed coal gasifier. United States.
Grindley, Thomas. Sun . "Method for enhancing the desulfurization of hot coal gas in a fluid-bed coal gasifier". United States. https://www.osti.gov/servlets/purl/866969.
@article{osti_866969,
title = {Method for enhancing the desulfurization of hot coal gas in a fluid-bed coal gasifier},
author = {Grindley, Thomas},
abstractNote = {A process and apparatus for providing additional desulfurization of the hot gas produced in a fluid-bed coal gasifier, within the gasifier. 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.degree. to 1800.degree. F. and are partially quenched with water to 1000.degree. to 1200.degree. F. before entering the iron oxide bed. The iron oxide bed provides additional desulfurization beyond that provided by the lime/limestone.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1989},
month = {1}
}

Patent:

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