Apparatus and method for recovering volatile compounds

Details Apparatus and method for recovering volatile compounds Apparatus and method for recovering volatile compounds

1980-06-10

1982-04-27

Schwartz, Larry I.

Drying and gas or vapor contact with solids

Apparatus

With apparatus using centrifugal force

34 77, 34155, 118 61, 137207, F26B 2110

Patent

active

043263437

ABSTRACT:
It has been known that volatile organic compounds evaporated in a substantially closed drying oven may be recovered by condensing part of the vapors in a cooler and recycling the mixture of the non-condensed vapor and inert gas back to the oven. However, non-steady state conditions tend to cause volume and pressure variations resulting in an out-breathing of oven atmosphere through the oven's entrance and exit ports, and an in-breathing of outside atmosphere. The invention provides a flexible expansion-contraction chamber to temporarily receive excess gas volume return it to the oven with minimal change in pressure. This reduces the loss of vapor, minimizes the need for inert gas addition, and conserves energy.

REFERENCES:
patent: 4012847 (1977-03-01), Rand
patent: 4197657 (1980-04-01), Leino et al.

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