Record Display for the EPA National Library Catalog
RECORD NUMBER: 435 OF 705Main Title | Pilot plant evaluation of critical fluid extractions for environmental applications / | |||||||||||
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Author | Kingsley, George S. | |||||||||||
CORP Author | Critical Fluid Systems, Inc., Cambridge, MA.;Environmental Protection Agency, Research Triangle Park, NC. Air and Energy Engineering Research Lab. | |||||||||||
Publisher | GPO, | |||||||||||
Year Published | 1985 | |||||||||||
Report Number | EPA/600/2-85/081; EPA-68-02-3924 | |||||||||||
Stock Number | PB85-233484 | |||||||||||
Subjects | Solvent extraction ; Vegetable oils ; Steel foundries--By-products ; Hazardous wastes--United States ; Refuse and refuse disposal--United States | |||||||||||
Additional Subjects | Solvents ; Solid waste disposal ; Air pollution control ; Solvent extraction ; Liquefied gases ; Materials recovery ; Economic analysis ; Critical point ; Design criteria ; Industrial wastes ; Pilot plants ; Performance evaluation ; Food industry ; Experimental design ; Extractors ; Feasibility ; Vegetable oils ; Bleaching agents ; Iron and steel industry ; Liquid waste disposal ; Supercritical gas extraction ; Critical fluids ; Bleaching clays ; Oil wastes ; Energy conservation ; Waste utilization | |||||||||||
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Collation | 93 pages : illustrations | |||||||||||
Abstract | The report gives results of using liquefied-gas solvents in a pilot plant study to extract oil from mill scale (a steel mill by-product) and bleaching clay (a vegetable oil filtering media). The process, operated on a semi-batch cycle, involved two extractors and a solvent recovery system. The results of the extraction experiments demonstrated the feasibility of condensed gas extraction. Preliminary economics indicate attractive payback on full-scale plants: about 23 months for a mill scale extraction facility and 17 months for a bleaching clay plant. |
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Notes | "Contract # 68-02-3924." "July 1985." "EPA/600/2-85/081." Microfiche. |