Emission control system for fluid compositions having volatile c

Details Emission control system for fluid compositions having volatile c Emission control system for fluid compositions having volatile c

1990-09-12

1992-04-21

Spitzer, Robert

Gas separation

Means within gas stream for conducting concentrate to collector

55208, B01D 1900

Patent

active

051064049

ABSTRACT:
A system and method for controlling atmospheric emission of volatile materials such as solvents, used to clean or treat articles incident to their manufacture comprising a treatment chamber and a recirculating closed loop gas and solvent recovery system. The chamber is isolated from the closed loop system, the article to be treated is put into the chamber, the chamber is sealed and gases removed by evacuation, these gases being discharged outside the closed loop system. The articles are treated with solvent, dried with a fluid derived in the solvent recovery system from noncondensable gas, residual in the system. Drying is effected by passing the recovered gases from the closed loop system through the chamber and by evacuation. The gas evacuated from the chamber, containing solvent vapor is retained within the closed loop system. The chamber is vented to outside the closed loop system prior to removing the treated item.

REFERENCES:
patent: 2129299 (1938-09-01), Bichowsky
patent: 4048007 (1977-09-01), Valle-Riestra
patent: 4066423 (1978-01-01), McGill et al.
patent: 4261707 (1981-04-01), Bradshaw et al.
patent: 4265642 (1981-05-01), Mir et al.
patent: 4383838 (1983-05-01), Barten et al.
patent: 4528001 (1985-07-01), Yokogawa et al.
patent: 4574005 (1986-03-01), Cobbs, Jr. et al.
patent: 4708721 (1987-11-01), Ehrler
patent: 4902310 (1990-02-01), Vara et al.

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