Process for particulate removal from coal liquids

Rappe, Gerald C

Title: Process for particulate removal from coal liquids

Full Record
Other Related Research

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 B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01D - SEPARATION

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

Show more

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}
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 B03B - SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
B03B9/005 - {specially adapted for coal}

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}

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

C - CHEMISTRY C10 - PETROLEUM, GAS OR COKE INDUSTRIES C10G - CRACKING HYDROCARBON OILS
C10G1/045 - {Separation of insoluble materials}
C10G31/10 - with the aid of centrifugal force
C10G32/02 - by electric or magnetic means

Show less

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.

Copy to clipboard


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

Copy to clipboard


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

Copy to clipboard


                    
@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}

}

Copy to clipboard

Patent:

Save / Share:

Export Metadata

Save to My Library

Similar Records in DOE Patents and OSTI.GOV collections:

Process for removal of mineral particulates from coal-derived liquids

Patent McDowell, William J [Knoxville, TN]

Suspended mineral solids are separated from a coal-derived liquid containing the solids by a process comprising the steps of: (a) contacting said coal-derived liquid containing solids with a molten additive having a melting point of 100.degree.-500.degree. C. in an amount of up to 50 wt. % with respect to said coal-derived liquid containing solids, said solids present in an amount effective to increase the particle size of said mineral solids and comprising material or mixtures of material selected from the group of alkali metal hydroxides and inorganic salts having antimony, tin, lithium, sodium, potassium, magnesium, calcium, beryllium, aluminum, zinc, molybdenum,more » « less
Full Text Available
Method for removing solid particulate material from within liquid fuel injector assemblies

Patent Simandl, Ronald F [Knoxville, TN]; Brown, John D [Harriman, TN]; Andriulli, John B [Kingston, TN]; ...

A method for removing residual solid particulate material from the interior of liquid fuel injectors and other fluid flow control mechanisms having or being operatively associated with a flow-regulating fixed or variable orifice. The method comprises the sequential and alternate introduction of columns of a non-compressible liquid phase and columns of a compressed gas phase into the body of a fuel injector whereby the expansion of each column of the gas phase across the orifice accelerates the liquid phase in each trailing column of the liquid phase and thereby generates turbulence in each liquid phase for lifting and entraining themore » « less
Full Text Available
Regenerative process and system for the simultaneous removal of particulates and the oxides of sulfur and nitrogen from a gas stream

Patent Cohen, Mitchell R [Troy, NY]; Gal, Eli [Lititz, PA]

A process and system for simultaneously removing from a gaseous mixture, sulfur oxides by means of a solid sulfur oxide acceptor on a porous carrier, nitrogen oxides by means of ammonia gas and particulate matter by means of filtration and for the regeneration of loaded solid sulfur oxide acceptor. Finely-divided solid sulfur oxide acceptor is entrained in a gaseous mixture to deplete sulfur oxides from the gaseous mixture, the finely-divided solid sulfur oxide acceptor being dispersed on a porous carrier material having a particle size up to about 200 microns. In the process, the gaseous mixture is optionally pre-filtered tomore » « less
Full Text Available
Efficient volatile metal removal from low rank coal in gasification, combustion, and processing systems and methods

Patent Bland, Alan E.; Sellakumar, Kumar Muthusami; Newcomer, Jesse D.

Efficient coal pre-processing systems (69) integrated with gasification, oxy-combustion, and power plant systems include a drying chamber (28), a volatile metal removal chamber (30), recirculated gases, including recycled carbon dioxide (21), nitrogen (6), and gaseous exhaust (60) for increasing the efficiencies and lowering emissions in various coal processing systems.
Full Text Available
Removal of mercury from coal via a microbial pretreatment process

Patent Borole, Abhijeet P [Knoxville, TN]; Hamilton, Choo Y [Knoxville, TN]

A process for the removal of mercury from coal prior to combustion is disclosed. The process is based on use of microorganisms to oxidize iron, sulfur and other species binding mercury within the coal, followed by volatilization of mercury by the microorganisms. The microorganisms are from a class of iron and/or sulfur oxidizing bacteria. The process involves contacting coal with the bacteria in a batch or continuous manner. The mercury is first solubilized from the coal, followed by microbial reduction to elemental mercury, which is stripped off by sparging gas and captured by a mercury recovery unit, giving mercury-free coal.more » « less
Full Text Available

Similar Records