Record Display for the EPA National Library CatalogRECORD NUMBER: 12 OF 17
|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.|
|Report Number||EPA/600/2-85/081; EPA-68-02-3924|
|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|
|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.