Distillation: processes – separatory – Convective distillation with normally gaseous medium – e.g. – air
Patent
1980-02-19
1981-12-29
Sever, Frank
Distillation: processes, separatory
Convective distillation with normally gaseous medium, e.g., air
203 75, 203 78, 203 82, 203 84, 203 88, 203DIG1, B01D 302
Patent
active
043081118
ABSTRACT:
A distillation device is provided which comprises a vaporization zone, a condensation zone, a vapor permeable barrier between the vaporization zone and the condensation zone comprising a membrane having a plurality of openings, and means for maintaining an air pressure gradiant across the barrier whereby air pressure on the vaporization zone side of the membrane is greater than air pressure on the condensation zone side of the membrane. A solar energy distillation device is also provided which comprises an enclosed air heating compartment including at least one glass panel exposed to solar radiation, an enclosed evaporation compartment including a reservoir of liquid to be distilled, an enclosed condensation chamber provided with means for cooling air and means for removal of distillate, an enclosed air conduit system that provides air flow through the air heating compartment, to and through the evaporation compartment, to and through the condensation chamber, a vapor permeable barrier across the air conduit system forming an inlet to said condensation chamber comprising a membrane having a plurality of openings, and means providing an air pressure gradient across the vapor permeable barrier whereby air flow through the air conduit system is maintained.
REFERENCES:
patent: 3303105 (1967-02-01), Konikoff et al.
patent: 3540986 (1970-11-01), Guarino
patent: 3960668 (1976-06-01), Rush
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