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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 there between, 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. 10 figs.

Inventors:
; ; ;
Issue Date:
Research Org.:
Battelle Memorial Institute
Sponsoring Org.:
USDOE, Washington, DC (United States)
OSTI Identifier:
489078
Patent Number(s):
5,637,209
Application Number:
PAN: 8-588,585
Assignee:
Battelle Memorial Inst., Richland, WI (United States) PTO; SCA: 540220; PA: EDB-97:087343; SN: 97001799030
DOE Contract Number:  
AC06-76RL01830
Resource Type:
Patent
Resource Relation:
Other Information: PBD: 10 Jun 1997
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES; ORGANIC COMPOUNDS; SUPERCRITICAL GAS EXTRACTION; SEPARATION EQUIPMENT; DESIGN; PORTABLE EQUIPMENT; OPERATION; SOLIDS; CLEANING

Citation Formats

Wright, B.W., Zemanian, T.S., Robins, W.H., and Woodcock, L.J. Field-portable supercritical CO{sub 2} extractor. United States: N. p., 1997. Web.
Wright, B.W., Zemanian, T.S., Robins, W.H., & Woodcock, L.J. Field-portable supercritical CO{sub 2} extractor. United States.
Wright, B.W., Zemanian, T.S., Robins, W.H., and Woodcock, L.J. Tue . "Field-portable supercritical CO{sub 2} extractor". United States.
@article{osti_489078,
title = {Field-portable supercritical CO{sub 2} extractor},
author = {Wright, B.W. and Zemanian, T.S. and Robins, W.H. and Woodcock, L.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 there between, 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. 10 figs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1997},
month = {6}
}