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

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:
 [1];  [1];  [1];  [2]
  1. Richland, WA
  2. Benton City, WA
Issue Date:
Research Org.:
Pacific Northwest National Laboratory (PNNL), Richland, WA
OSTI Identifier:
870987
Patent Number(s):
5637209
Assignee:
Battelle Memorial Institute (Richland, WI)
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.
Wright, Bob W, Zemanian, Thomas S, Robins, William H, & Woodcock, Leslie J. Field-portable supercritical CO.sub.2 extractor. United States.
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.
@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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