Field-portable supercritical CO.sub.2 extractor

Wright, Bob W; Zemanian, Thomas S; Robins, William H; Woodcock, Leslie J

Title: Field-portable supercritical CO.sub.2 extractor

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Abstract

The present invention is an apparatus for extracting organic compounds from solid materials. A generator vessel has a removable closure for receiving a solid or liquid solvent which is heated with a resistive heating element to a gaseous or supercritical phase. The removable closure is unencumbered because the side wall is penetrated with an outlet for the gaseous or supercritical solvent. The generator vessel further has a pressure transducer that provides an electronic signal related to pressure of the gaseous or supercritical solvent. The apparatus of the present invention further includes at least one extraction cell having a top and a bottom and a wall extending therebetween, wherein the bottom is sealably penetrated by an inlet for gaseous or supercritical solvent received through a manifold connected to the outlet, the top having an easy-open removable closure cap, and the wall having an outlet port. Finally, a permeable sample cartridge is included for holding the solid materials and to provide radial-flow of the extraction fluid, which is placed within the extraction cell.

Inventors:

Wright, Bob W ^[1]; Zemanian, Thomas S ^[1]; Robins, William H ^[1]; Woodcock, Leslie J ^[2]

Richland, WA
Benton City, WA

Issue Date:: 1997-01-01

Research Org.:: Pacific Northwest National Lab. (PNNL), Richland, WA (United States)

OSTI Identifier:: 870987

Patent Number(s):: 5637209

Assignee:: Battelle Memorial Institute (Richland, WI)

Patent Classifications (CPCs):: B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01D - SEPARATION

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B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01D - SEPARATION
B01D11/0203 - {with a supercritical fluid}

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DOE Contract Number:: AC06-76RL01830

Resource Type:: Patent

Country of Publication:: United States

Language:: English

Subject:: field-portable; supercritical; extractor; apparatus; extracting; organic; compounds; solid; materials; generator; vessel; removable; closure; receiving; liquid; solvent; heated; resistive; heating; element; gaseous; phase; unencumbered; wall; penetrated; outlet; pressure; transducer; provides; electronic; signal; related; extraction; cell; top; bottom; extending; therebetween; sealably; inlet; received; manifold; connected; easy-open; cap; finally; permeable; sample; cartridge; included; holding; provide; radial-flow; fluid; placed; resistive heating; solid materials; organic compound; heating element; organic compounds; solid material; liquid solvent; pressure transducer; electronic signal; supercritical solvent; closure cap; critical solvent; provide radial; /210/422/

Citation Formats


                    Wright, Bob W, Zemanian, Thomas S, Robins, William H, and Woodcock, Leslie J. Field-portable supercritical CO.sub.2 extractor.  United States: N. p., 1997. 
        Web.

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                    Wright, Bob W, Zemanian, Thomas S, Robins, William H, & Woodcock, Leslie J. Field-portable supercritical CO.sub.2 extractor.  United States.

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                    Wright, Bob W, Zemanian, Thomas S, Robins, William H, and Woodcock, Leslie J. Wed .  
        "Field-portable supercritical CO.sub.2 extractor".  United States.  https://www.osti.gov/servlets/purl/870987.

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@article{osti_870987,

  title        = {Field-portable supercritical CO.sub.2 extractor},

  author       = {Wright, Bob W and Zemanian, Thomas S and Robins, William H and Woodcock, Leslie J},

  abstractNote = {The present invention is an apparatus for extracting organic compounds from solid materials. A generator vessel has a removable closure for receiving a solid or liquid solvent which is heated with a resistive heating element to a gaseous or supercritical phase. The removable closure is unencumbered because the side wall is penetrated with an outlet for the gaseous or supercritical solvent. The generator vessel further has a pressure transducer that provides an electronic signal related to pressure of the gaseous or supercritical solvent. The apparatus of the present invention further includes at least one extraction cell having a top and a bottom and a wall extending therebetween, wherein the bottom is sealably penetrated by an inlet for gaseous or supercritical solvent received through a manifold connected to the outlet, the top having an easy-open removable closure cap, and the wall having an outlet port. Finally, a permeable sample cartridge is included for holding the solid materials and to provide radial-flow of the extraction fluid, which is placed within the extraction cell.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {1997},

  month        = {1}

}

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