Process and system for recovering water from the atmosphere

Details Process and system for recovering water from the atmosphere Process and system for recovering water from the atmosphere

1977-03-28

1979-03-27

Spitzer, Robert H.

Gas separation

Means within gas stream for conducting concentrate to collector

55 74, 55 80, 55387, B01D 5304

Patent

active

041463722

ABSTRACT:
Water is recovered from air by a process utilizing the differences in the day-time and night temperatures of such air. The process is especially useful in subtropical desert areas. It consists in alternately removing the moisture from the cool night air by adsorption on suitable adsorbing agents and especially on silica gel and by utilizing the hot day-time air and, if desired and available, the radiation energy of the sun for desorption of the water stored in the adsorbing agent and for condensing the desorbed water by means of the cold stored during the night. An especially suitable silica gel is used for adsorption of the water contained in the air. The energy required for operating the plant is produced by passing the recovered water through energy producing installations such as turbines before it is used as drinking water or for irrigation. The process is very economical and, in contrast to seawater desalination processes, does not require additional thermal energy.

REFERENCES:
patent: 2037685 (1936-04-01), Holden
patent: 2138689 (1938-11-01), Altenkirch
patent: 2138690 (1938-11-01), Altenkirch
patent: 2462952 (1949-03-01), Dunkak
patent: 2606663 (1952-08-01), Blackman et al.
patent: 3203472 (1965-08-01), Brandt
patent: 3263400 (1966-08-01), Hoke et al.
patent: 3400515 (1968-09-01), Ackerman
patent: 3674429 (1972-07-01), Collins
patent: 3846251 (1974-11-01), Hay

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