04487616 is referenced by 7 patents and cites 13 patents.

A method for recovering hydrocarbon and hydrocarbon derived solvents from solvent laden air. This method includes the steps of moving the solvent laden air through a first chamber; moving a film of liquid coolant, which liquid coolant is cooled to a temperature at least as low as 20.degree. F. and is immiscible with the solvent to be recovered, over plates located in the first chamber in contact with the solvent laden air, thereby condensing the solvent on the film of liquid coolant moving over the plates; collecting the immiscible liquid coolant and condensed solvent; and separating the immiscible liquid coolant from the condensed solvent. The liquid coolant may be moved through the first chamber in a direction counter to the direction of movement of the solvent laden air. The solvent may be a dry cleaning solvent and the liquid coolant may be a brine solution. More specifically, the solvent may be perchloroethylene and the liquid coolant may be a brine solution of calcium chloride.

Title
Method for removing solvent from solvent vapor-laden air exiting a dry-cleaning machine
Application Number
314791
Publication Number
4487616
Application Date
March 21, 1983
Publication Date
December 11, 1984
Inventor
Bruce M Grossman
Chicago
IL, US
Agent
Kinzer Plyer Dorn & McEachran
Assignee
Scrub Tek
IL, US
IPC
B01D 47/00
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