Process for removal of hazardous air pollutants from coal
Abstract
An improved process for removing mercury and other trace elements from coal containing pyrite by forming a slurry of finely divided coal in a liquid solvent capable of forming ions or radicals having a tendency to react with constituents of pyrite or to attack the bond between pyrite and coal and/or to react with mercury to form mercury vapors, and heating the slurry in a closed container to a temperature of at least about 50.degree. C. to produce vapors of the solvent and withdrawing vapors including solvent and mercury-containing vapors from the closed container, then separating mercury from the vapors withdrawn.
- Inventors:
-
- Indiana, PA
- Silver Spring, MD
- Burtonsville, MD
- Mountain View, CA
- Issue Date:
- Research Org.:
- CQ INC
- OSTI Identifier:
- 873423
- Patent Number(s):
- 6156281
- Assignee:
- Howard University (Washington, DC); CQ Inc. (Homer City, PA)
- Patent Classifications (CPCs):
-
B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01D - SEPARATION
C - CHEMISTRY C10 - PETROLEUM, GAS OR COKE INDUSTRIES C10L - FUELS NOT OTHERWISE PROVIDED FOR
- DOE Contract Number:
- AC22-95PC95153
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- process; removal; hazardous; air; pollutants; coal; improved; removing; mercury; trace; elements; containing; pyrite; forming; slurry; finely; divided; liquid; solvent; capable; radicals; tendency; react; constituents; attack; bond; form; vapors; heating; closed; container; temperature; 50; degree; produce; withdrawing; including; mercury-containing; separating; withdrawn; solvent capable; closed container; trace element; improved process; finely divided; liquid solvent; mercury vapor; removing mercury; air pollutants; coal containing; divided coal; containing vapor; /423/44/
Citation Formats
Akers, David J, Ekechukwu, Kenneth N, Aluko, Mobolaji E, and Lebowitz, Howard E. Process for removal of hazardous air pollutants from coal. United States: N. p., 2000.
Web.
Akers, David J, Ekechukwu, Kenneth N, Aluko, Mobolaji E, & Lebowitz, Howard E. Process for removal of hazardous air pollutants from coal. United States.
Akers, David J, Ekechukwu, Kenneth N, Aluko, Mobolaji E, and Lebowitz, Howard E. Sat .
"Process for removal of hazardous air pollutants from coal". United States. https://www.osti.gov/servlets/purl/873423.
@article{osti_873423,
title = {Process for removal of hazardous air pollutants from coal},
author = {Akers, David J and Ekechukwu, Kenneth N and Aluko, Mobolaji E and Lebowitz, Howard E},
abstractNote = {An improved process for removing mercury and other trace elements from coal containing pyrite by forming a slurry of finely divided coal in a liquid solvent capable of forming ions or radicals having a tendency to react with constituents of pyrite or to attack the bond between pyrite and coal and/or to react with mercury to form mercury vapors, and heating the slurry in a closed container to a temperature of at least about 50.degree. C. to produce vapors of the solvent and withdrawing vapors including solvent and mercury-containing vapors from the closed container, then separating mercury from the vapors withdrawn.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Sat Jan 01 00:00:00 EST 2000},
month = {Sat Jan 01 00:00:00 EST 2000}
}
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Works referenced in this record:
The Redistribution of Trace Elements During the Beneficiation of Coal
book, January 1995
- Akers, D. J.
- Energy & Environment
Role of coal cleaning in control of air toxics
journal, August 1994
- Akers, David; Dospoy, Robert
- Fuel Processing Technology, Vol. 39, Issue 1-3
The Mechanisms of Trace Element Removal During Coal Cleaning
journal, July 1998
- Akers, David J.; Raleigh, Clifford E.
- Coal Preparation, Vol. 19, Issue 3-4