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, Columbus, OH (United States)
- Sponsoring Org.:
- USDOE, Washington, DC (United States)
- OSTI Identifier:
- 489078
- Patent Number(s):
- 5637209
- Application Number:
- PAN: 8-588,585
- Assignee:
- Battelle Memorial Inst., Richland, WI (United States)
- 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}
}