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Title: Continuous air agglomeration method for high carbon fly ash beneficiation

Abstract

The carbon and mineral components of fly ash are effectively separated by a continuous air agglomeration method, resulting in a substantially carboree mineral stream and a highly concentrated carbon product. The method involves mixing the fly ash comprised of carbon and inorganic mineral matter with a liquid hydrocarbon to form a slurry, contacting the slurry with an aqueous solution, dispersing the hydrocarbon slurry into small droplets within the aqueous solution by mechanical mixing and/or aeration, concentrating the inorganic mineral matter in the aqueous solution, agglomerating the carbon and hydrocarbon in the form of droplets, collecting the droplets, separating the hydrocarbon from the concentrated carbon product, and recycling the hydrocarbon.

Inventors:
 [1];  [2];  [1]
  1. (Pittsburgh, PA)
  2. (Monongahela, PA)
Issue Date:
Research Org.:
National Energy Technology Laboratory, Pittsburgh, PA, and Morgantown, WV
OSTI Identifier:
873275
Patent Number(s):
6126014
Assignee:
United States of America as represented by Department of Energy (Washington, DC) NETL
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
continuous; air; agglomeration; method; carbon; fly; ash; beneficiation; mineral; components; effectively; separated; resulting; substantially; carboree; stream; highly; concentrated; product; involves; mixing; comprised; inorganic; matter; liquid; hydrocarbon; form; slurry; contacting; aqueous; solution; dispersing; droplets; mechanical; aeration; concentrating; agglomerating; collecting; separating; recycling; continuous air; liquid hydrocarbon; mineral matter; fly ash; method involves; aqueous solution; highly concentrated; mineral component; method involve; effectively separate; carbon product; air agglomeration; agglomeration method; /209/241/

Citation Formats

Gray, McMahon L., Champagne, Kenneth J., and Finseth, Dennis H. Continuous air agglomeration method for high carbon fly ash beneficiation. United States: N. p., 2000. Web.
Gray, McMahon L., Champagne, Kenneth J., & Finseth, Dennis H. Continuous air agglomeration method for high carbon fly ash beneficiation. United States.
Gray, McMahon L., Champagne, Kenneth J., and Finseth, Dennis H. Sat . "Continuous air agglomeration method for high carbon fly ash beneficiation". United States. https://www.osti.gov/servlets/purl/873275.
@article{osti_873275,
title = {Continuous air agglomeration method for high carbon fly ash beneficiation},
author = {Gray, McMahon L. and Champagne, Kenneth J. and Finseth, Dennis H.},
abstractNote = {The carbon and mineral components of fly ash are effectively separated by a continuous air agglomeration method, resulting in a substantially carboree mineral stream and a highly concentrated carbon product. The method involves mixing the fly ash comprised of carbon and inorganic mineral matter with a liquid hydrocarbon to form a slurry, contacting the slurry with an aqueous solution, dispersing the hydrocarbon slurry into small droplets within the aqueous solution by mechanical mixing and/or aeration, concentrating the inorganic mineral matter in the aqueous solution, agglomerating the carbon and hydrocarbon in the form of droplets, collecting the droplets, separating the hydrocarbon from the concentrated carbon product, and recycling the hydrocarbon.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2000},
month = {1}
}

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