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Title: Method for improving the sedimentation and filterability of coal-derived liquids

Abstract

An improvement in the separation of suspended solids from coal-derived liquids by a separations process in which solids size is a separations parameter is achieved by contacting the coal-derived liquid containing suspended solids with an effective amount of an additive selected from the group of sulfuric acid, phosphoric acid, phosphoric anhydride and salts of sulfuric and phosphoric acid, and maintaining the contacted liquid at a temperature within the range of about 150.degree.-400.degree. C and for a time sufficient to achieve the desired separation rate.

Inventors:
 [1];  [2]
  1. Oak Ridge, TN
  2. Concord, TN
Issue Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
OSTI Identifier:
863248
Patent Number(s):
4132639
Application Number:
05/821,665
Assignee:
United States of America as represented by United States (Washington, DC)
Patent Classifications (CPCs):
C - CHEMISTRY C10 - PETROLEUM, GAS OR COKE INDUSTRIES C10G - CRACKING HYDROCARBON OILS
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
method; improving; sedimentation; filterability; coal-derived; liquids; improvement; separation; suspended; solids; separations; process; size; parameter; achieved; contacting; liquid; containing; effective; amount; additive; selected; sulfuric; acid; phosphoric; anhydride; salts; maintaining; contacted; temperature; range; 150; degree; -400; time; sufficient; achieve; desired; rate; additive selected; coal-derived liquids; effective amount; time sufficient; sulfuric acid; phosphoric acid; coal-derived liquid; liquid containing; derived liquids; desired separation; suspended solid; /210/208/

Citation Formats

Katz, Sidney, and Rodgers, Billy R. Method for improving the sedimentation and filterability of coal-derived liquids. United States: N. p., 1979. Web.
Katz, Sidney, & Rodgers, Billy R. Method for improving the sedimentation and filterability of coal-derived liquids. United States.
Katz, Sidney, and Rodgers, Billy R. Tue . "Method for improving the sedimentation and filterability of coal-derived liquids". United States. https://www.osti.gov/servlets/purl/863248.
@article{osti_863248,
title = {Method for improving the sedimentation and filterability of coal-derived liquids},
author = {Katz, Sidney and Rodgers, Billy R},
abstractNote = {An improvement in the separation of suspended solids from coal-derived liquids by a separations process in which solids size is a separations parameter is achieved by contacting the coal-derived liquid containing suspended solids with an effective amount of an additive selected from the group of sulfuric acid, phosphoric acid, phosphoric anhydride and salts of sulfuric and phosphoric acid, and maintaining the contacted liquid at a temperature within the range of about 150.degree.-400.degree. C and for a time sufficient to achieve the desired separation rate.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1979},
month = {1}
}

Patent:

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