Process for selective grinding of coal
Abstract
A process for preparing coal for use as a fuel. Forming a coal-water slurry having solid coal particles with a particle size not exceeding about 80 microns, transferring the coal-water slurry to a solid bowl centrifuge, and operating same to classify the ground coal-water slurry to provide a centrate containing solid particles with a particle size distribution of from about 5 microns to about 20 microns and a centrifuge cake of solids having a particle size distribution of from about 10 microns to about 80 microns. The classifer cake is reground and mixed with fresh feed to the solid bowl centrifuge for additional classification.
- Inventors:
-
- San Francisco, CA
- Hillsborough, CA
- Benicia, CA
- Issue Date:
- Research Org.:
- Bechtel Corp., Homer City, PA (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 875280
- Patent Number(s):
- H000981
- Application Number:
- 07/398576
- Assignee:
- United States of America as represented by United States (Washington, DC)
- DOE Contract Number:
- AC22-87PC79867
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 1989 Aug 25
- Country of Publication:
- United States
- Language:
- English
- Subject:
- statutory invention registration; process; selective; grinding; coal; preparing; fuel; forming; coal-water; slurry; solid; particles; particle; size; exceeding; 80; microns; transferring; bowl; centrifuge; operating; classify; ground; provide; centrate; containing; distribution; 20; cake; solids; 10; classifer; reground; mixed; fresh; feed; additional; classification; coal particle; water slurry; coal-water slurry; containing solid; size distribution; solid particles; particle size; coal particles; solid particle; fresh feed; /44/209/241/
Citation Formats
Venkatachari, Mukund K., Benz, August D., and Huettenhain, Horst. Process for selective grinding of coal. United States: N. p., 1991.
Web.
Venkatachari, Mukund K., Benz, August D., & Huettenhain, Horst. Process for selective grinding of coal. United States.
Venkatachari, Mukund K., Benz, August D., and Huettenhain, Horst. Tue .
"Process for selective grinding of coal". United States. https://www.osti.gov/servlets/purl/875280.
@article{osti_875280,
title = {Process for selective grinding of coal},
author = {Venkatachari, Mukund K. and Benz, August D. and Huettenhain, Horst},
abstractNote = {A process for preparing coal for use as a fuel. Forming a coal-water slurry having solid coal particles with a particle size not exceeding about 80 microns, transferring the coal-water slurry to a solid bowl centrifuge, and operating same to classify the ground coal-water slurry to provide a centrate containing solid particles with a particle size distribution of from about 5 microns to about 20 microns and a centrifuge cake of solids having a particle size distribution of from about 10 microns to about 80 microns. The classifer cake is reground and mixed with fresh feed to the solid bowl centrifuge for additional classification.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jan 01 00:00:00 EST 1991},
month = {Tue Jan 01 00:00:00 EST 1991}
}
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