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Title: Process for removing pyritic sulfur from bituminous coals

Abstract

A process is provided for removing pyritic sulfur and lowering ash content of bituminous coals by grinding the feed coal, subjecting it to micro-agglomeration with a bridging liquid containing heavy oil, separating the microagglomerates and separating them to a water wash to remove suspended pyritic sulfur. In one embodiment the coal is subjected to a second micro-agglomeration step.

Inventors:
 [1];  [1];  [1];  [1]
  1. Edmonton, CA
Issue Date:
Research Org.:
Electric Power Research Institute, Inc. (Palo Alto, CA)
OSTI Identifier:
867576
Patent Number(s):
4966608
Assignee:
Electric Power Research Institute, Inc. (Palo Alto, CA)
Patent Classifications (CPCs):
C - CHEMISTRY C10 - PETROLEUM, GAS OR COKE INDUSTRIES C10L - FUELS NOT OTHERWISE PROVIDED FOR
B - PERFORMING OPERATIONS B03 - SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS B03B - SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
DOE Contract Number:  
FG22-87PC79865
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
process; removing; pyritic; sulfur; bituminous; coals; provided; lowering; ash; content; grinding; feed; coal; subjecting; micro-agglomeration; bridging; liquid; containing; heavy; oil; separating; microagglomerates; water; wash; remove; suspended; embodiment; subjected; step; feed coal; pyritic sulfur; liquid containing; ash content; containing heavy; heavy oil; removing pyritic; water wash; bridging liquid; bituminous coal; bituminous coals; /44/209/

Citation Formats

Pawlak, Wanda, Janiak, Jerzy S, Turak, Ali A, and Ignasiak, Boleslaw L. Process for removing pyritic sulfur from bituminous coals. United States: N. p., 1990. Web.
Pawlak, Wanda, Janiak, Jerzy S, Turak, Ali A, & Ignasiak, Boleslaw L. Process for removing pyritic sulfur from bituminous coals. United States.
Pawlak, Wanda, Janiak, Jerzy S, Turak, Ali A, and Ignasiak, Boleslaw L. Mon . "Process for removing pyritic sulfur from bituminous coals". United States. https://www.osti.gov/servlets/purl/867576.
@article{osti_867576,
title = {Process for removing pyritic sulfur from bituminous coals},
author = {Pawlak, Wanda and Janiak, Jerzy S and Turak, Ali A and Ignasiak, Boleslaw L},
abstractNote = {A process is provided for removing pyritic sulfur and lowering ash content of bituminous coals by grinding the feed coal, subjecting it to micro-agglomeration with a bridging liquid containing heavy oil, separating the microagglomerates and separating them to a water wash to remove suspended pyritic sulfur. In one embodiment the coal is subjected to a second micro-agglomeration step.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1990},
month = {1}
}