Methods for controlling vapor concentrations in an atmosphere

Details Methods for controlling vapor concentrations in an atmosphere Methods for controlling vapor concentrations in an atmosphere

1980-09-30

1982-07-06

Schwartz, Larry I.

Drying and gas or vapor contact with solids

Apparatus

With means to treat gas or vapor

34 32, 34 43, 34 76, 34 77, F26B 304

Patent

active

043375820

ABSTRACT:
The degree of saturation of a vapor in a chamber such as a curing oven is controlled by sensing the vapor dew point and varying the rate of removal of such vapor from the oven in response to a comparison of the sensed dew point with a predetermined dew point. This comparison may also be effected by comparing the difference between the actual dew point and oven temperature with a predetermined difference and controlling the rate of vapor removal in response to variations between the actual and predetermined differences. Alternately, a predetermined ratio between dew point and oven temperature may be maintained. By controlling the dew point of the vapor, i.e. degree of saturation, condensation in the oven is precluded while still permitting high solvent vapor concentrations which in turn facilitate recovery of solvent exhausted or removed from the oven.

REFERENCES:
patent: 4150494 (1979-04-01), Rothchild
patent: 4150495 (1979-04-01), Stern
patent: 4221058 (1980-09-01), Zagorzycki
patent: 4245397 (1981-01-01), Laar et al.

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