Record Display for the EPA National Library Catalog


Main Title Pilot plant evaluation of critical fluid extractions for environmental applications /
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
Library Call Number Additional Info Location Last
NTIS  PB85-233484 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 93 pages : illustrations
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.
"Contract # 68-02-3924." "July 1985." "EPA/600/2-85/081." Microfiche.