Field-portable supercritical CO{sub 2} extractor
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.
- Research Organization:
- Battelle Memorial Institute, Columbus, OH (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC06-76RL01830
- Assignee:
- Battelle Memorial Inst., Richland, WI (United States)
- Patent Number(s):
- US 5,637,209/A/
- Application Number:
- PAN: 8-588,585
- OSTI ID:
- 489078
- Resource Relation:
- Other Information: PBD: 10 Jun 1997
- Country of Publication:
- United States
- Language:
- English
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