Process for removing pyritic sulfur from bituminous coals

Pawlak, Wanda; Janiak, Jerzy S; Turak, Ali A; Ignasiak, Boleslaw L

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Title: Process for removing pyritic sulfur from bituminous coals

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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:

Pawlak, Wanda ^[1]; Janiak, Jerzy S ^[1]; Turak, Ali A ^[1]; Ignasiak, Boleslaw L ^[1]

Edmonton, CA

Issue Date:: Mon Jan 01 00:00:00 EST 1990

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):: 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

C - CHEMISTRY C10 - PETROLEUM, GAS OR COKE INDUSTRIES C10L - FUELS NOT OTHERWISE PROVIDED FOR

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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
B03B1/04 - by additives
B03B9/005 - {specially adapted for coal}

C - CHEMISTRY C10 - PETROLEUM, GAS OR COKE INDUSTRIES C10L - FUELS NOT OTHERWISE PROVIDED FOR
C10L5/06 - Methods of {shaping, e.g. pelletizing or} briquetting
C10L9/00 - Treating solid fuels to improve their combustion

Show less

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.

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                    Pawlak, Wanda, Janiak, Jerzy S, Turak, Ali A, & Ignasiak, Boleslaw L. Process for removing pyritic sulfur from bituminous coals.  United States.

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                    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.

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@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         = {Mon Jan 01 00:00:00 EST 1990},

  month        = {Mon Jan 01 00:00:00 EST 1990}

}

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