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Title: Formation of disperse-slurry of coal liquefaction residue

Abstract

This patent describes a process for forming a disperse-slurry in aqueous medium of comminuted particles of a hydrophobic coal liquefaction residue containing phenolic components which are conducive to creaming. This process consists of: contacting the hydrophobic H-coal residue, containing phenolic components which are conducive to creaming, with 0.001-0.1 parts per 100 parts of aqueous medium of a cationic surfactant R/sup 1/R/sup 2/R/sup 3/R/sup 4/N+X- wherein R/sup 1/ is a C/sub 12/-C/sub 20/ hydrocarbon group; each of R/sup 2/, R/sup 3/ and R/sup 4/ is a C/sub 1/-C/sub 6/ lower hydrocarbon group or a poly(oxyalkylene) group having 12-25 repeating units; and X is an inert anion whereby the surfactant is adsorbed onto the particles; and comminuting, in the presence of aqueous medium, the hydrophobic coal liquefaction residue, containing phenolic components which are conducive to creaming, in the presence of the surfactant thereby forming a slurry of comminuted hydrophobic coal liquefaction residue in aqueous medium characterized by decreased creaming decreased wall adhesion, and reduced phase separation; and recovering the slurry of comminuted hydrophobic coal liquefaction residue in aqueous medium characterized by decreased creaming, enhanced dispersability, decreased wall adhesion, and reduced phase separation.

Inventors:
;
Publication Date:
OSTI Identifier:
5703127
Patent Number(s):
US 4575381
Assignee:
Texaco Inc., White Plains, NY
Resource Type:
Patent
Resource Relation:
Patent File Date: Filed date 1 Mar 1984
Country of Publication:
United States
Language:
English
Subject:
01 COAL, LIGNITE, AND PEAT; 32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; H-COAL PROCESS; RESIDUES; WASTE PROCESSING; WASTE PRODUCT UTILIZATION; ADHESION; ADSORPTION; AQUEOUS SOLUTIONS; COAL LIQUEFACTION; COMMINUTION; HYDROCARBONS; PARTICLES; PHENOLS; SLURRIES; SURFACTANTS; AROMATICS; DISPERSIONS; HYDROXY COMPOUNDS; LIQUEFACTION; MANAGEMENT; MIXTURES; ORGANIC COMPOUNDS; PROCESSING; SOLUTIONS; SORPTION; SUSPENSIONS; THERMOCHEMICAL PROCESSES; WASTE MANAGEMENT; 010800* - Coal, Lignite, & Peat- Waste Management; 320305 - Energy Conservation, Consumption, & Utilization- Industrial & Agricultural Processes- Industrial Waste Management

Citation Formats

Corbeels, R J, and Vasconcellos, S R. Formation of disperse-slurry of coal liquefaction residue. United States: N. p., 1986. Web.
Corbeels, R J, & Vasconcellos, S R. Formation of disperse-slurry of coal liquefaction residue. United States.
Corbeels, R J, and Vasconcellos, S R. 1986. "Formation of disperse-slurry of coal liquefaction residue". United States.
@article{osti_5703127,
title = {Formation of disperse-slurry of coal liquefaction residue},
author = {Corbeels, R J and Vasconcellos, S R},
abstractNote = {This patent describes a process for forming a disperse-slurry in aqueous medium of comminuted particles of a hydrophobic coal liquefaction residue containing phenolic components which are conducive to creaming. This process consists of: contacting the hydrophobic H-coal residue, containing phenolic components which are conducive to creaming, with 0.001-0.1 parts per 100 parts of aqueous medium of a cationic surfactant R/sup 1/R/sup 2/R/sup 3/R/sup 4/N+X- wherein R/sup 1/ is a C/sub 12/-C/sub 20/ hydrocarbon group; each of R/sup 2/, R/sup 3/ and R/sup 4/ is a C/sub 1/-C/sub 6/ lower hydrocarbon group or a poly(oxyalkylene) group having 12-25 repeating units; and X is an inert anion whereby the surfactant is adsorbed onto the particles; and comminuting, in the presence of aqueous medium, the hydrophobic coal liquefaction residue, containing phenolic components which are conducive to creaming, in the presence of the surfactant thereby forming a slurry of comminuted hydrophobic coal liquefaction residue in aqueous medium characterized by decreased creaming decreased wall adhesion, and reduced phase separation; and recovering the slurry of comminuted hydrophobic coal liquefaction residue in aqueous medium characterized by decreased creaming, enhanced dispersability, decreased wall adhesion, and reduced phase separation.},
doi = {},
url = {https://www.osti.gov/biblio/5703127}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Mar 11 00:00:00 EST 1986},
month = {Tue Mar 11 00:00:00 EST 1986}
}