Process for particulate removal from coal liquids

Rappe, Gerald C

Title: Process for particulate removal from coal liquids

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Abstract

Suspended solid particulates are removed from liquefied coal products by first subjecting such products to hydroclone action for removal in the underflow of the larger size particulates, and then subjecting the overflow from said hydroclone action, comprising the residual finer particulates, to an electrostatic field in an electrofilter wherein such finer particulates are deposited in the bed of beads of dielectric material on said filter. The beads are periodically cleaned by backwashing to remove the accumulated solids.

Inventors:

Rappe, Gerald C ^[1]

Macungie, PA

Issue Date:: 1983-01-01

Research Org.:: INTERNATIONAL COAL REFINING CO

OSTI Identifier:: 864668

Patent Number(s):: 4399041

Assignee:: International Coal Refining Company (Allentown, PA)

Patent Classifications (CPCs):: B - PERFORMING OPERATIONS B04 - CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES B04C - APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES

C - CHEMISTRY C10 - PETROLEUM, GAS OR COKE INDUSTRIES C10G - CRACKING HYDROCARBON OILS

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B - PERFORMING OPERATIONS B04 - CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES B04C - APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
B04C9/00 - Combinations with other devices, e.g. fans, {expansion chambers, diffusors, water locks}
B04C2009/002 - {with external filters}
B04C5/26 - for series flow

C - CHEMISTRY C10 - PETROLEUM, GAS OR COKE INDUSTRIES C10G - CRACKING HYDROCARBON OILS
C10G1/045 - {Separation of insoluble materials}
C10G32/02 - by electric or magnetic means

B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01D - SEPARATION
B01D21/0012 - {Settling tanks making use of filters, e.g. by floating layers of particulate material}
B01D21/26 - Separation of sediment aided by centrifugal force {or centripetal force}

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
B03B9/005 - {specially adapted for coal}

B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01D - SEPARATION
B01D21/267 - {by using a cyclone}
B01D35/06 - Filters making use of electricity or magnetism

B - PERFORMING OPERATIONS B03 - SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS B03C - MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS
B03C5/024 - {using high-gradient differential dielectric separation, i.e. using a dielectric matrix polarised by an external field}

C - CHEMISTRY C10 - PETROLEUM, GAS OR COKE INDUSTRIES C10G - CRACKING HYDROCARBON OILS
C10G31/10 - with the aid of centrifugal force

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DOE Contract Number:: AC05-78OR03054

Resource Type:: Patent

Country of Publication:: United States

Language:: English

Subject:: process; particulate; removal; coal; liquids; suspended; solid; particulates; removed; liquefied; products; subjecting; hydroclone; action; underflow; larger; size; overflow; comprising; residual; finer; electrostatic; field; electrofilter; deposited; bed; beads; dielectric; material; filter; periodically; cleaned; backwashing; remove; accumulated; solids; solid particulates; particulate removal; coal products; coal product; liquefied coal; coal liquids; coal liquid; solid particulate; dielectric material; electrostatic field; larger size; suspended solid; /204/210/

Citation Formats


                    Rappe, Gerald C. Process for particulate removal from coal liquids.  United States: N. p., 1983. 
        Web.

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                    Rappe, Gerald C. Process for particulate removal from coal liquids.  United States.

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                    Rappe, Gerald C. Sat .  
        "Process for particulate removal from coal liquids".  United States.  https://www.osti.gov/servlets/purl/864668.

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@article{osti_864668,

  title        = {Process for particulate removal from coal liquids},

  author       = {Rappe, Gerald C},

  abstractNote = {Suspended solid particulates are removed from liquefied coal products by first subjecting such products to hydroclone action for removal in the underflow of the larger size particulates, and then subjecting the overflow from said hydroclone action, comprising the residual finer particulates, to an electrostatic field in an electrofilter wherein such finer particulates are deposited in the bed of beads of dielectric material on said filter. The beads are periodically cleaned by backwashing to remove the accumulated solids.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {1983},

  month        = {1}

}

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