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:
-
- Morgantown, WV
- Issue Date:
- Research Org.:
- National Energy Technology Laboratory (NETL), Pittsburgh, PA, Morgantown, WV (United States)
- OSTI Identifier:
- 866969
- Patent Number(s):
- 4832704
- Assignee:
- United States of America as represented by United States (Washington, DC)
- Patent Classifications (CPCs):
-
C - CHEMISTRY C10 - PETROLEUM, GAS OR COKE INDUSTRIES C10J - PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES
C - CHEMISTRY C10 - PETROLEUM, GAS OR COKE INDUSTRIES C10K - PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLE GASES CONTAINING CARBON MONOXIDE
- 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 = {Sun Jan 01 00:00:00 EST 1989},
month = {Sun Jan 01 00:00:00 EST 1989}
}
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