Distillation: processes – separatory – Water purification only – Under pressure or vacuum
Patent
1982-07-02
1984-01-24
Bascomb, Jr., Wilbur L.
Distillation: processes, separatory
Water purification only
Under pressure or vacuum
203 39, 203 92, 203100, 203DIG14, 606412, 159 16S, 159DIG31, 202176, 202177, 202197, 202234, C02F 110, C02F 120
Patent
active
044274955
ABSTRACT:
Apparatus and a method for upgrading low pressure steam or brine, such as from a geothermal well, to prepare the steam or brine for any one of a number of uses, such as for conversion to pure, high pressure, high temperature steam for driving turbines. The system operates in a degasification phase in which a small amount of superheated steam is applied to the brine to scrub the same to cause the removal of concentrated gases therefrom. The degasified product is then pumped to a high pressure, heated countercurrently, and directed through a demineralized phase to remove the salts and solids in a liquid phase and convert the bulk of the water into pure, high pressure saturated steam. The steam output from the demineralizing phase can then be used to produce useful work, such as driving a turbine. In addition to forming saturated steam from geothermal brine, the system can be used to form pure saturated steam from impure water from any suitable source. The system can be used to produce clear, potable hot water from sea water and other water having contaminants therein. For dry steam from geothermal wells, the gas-contaminated steam is converted to brine without loss of temperature or pressure by adding pure hot water so that the resulting mixture can be degasified in the liquid phase. Valuable salts can be recovered and gases of commercial value can be isolated by the present method.
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patent: 4247371 (1981-01-01), Roller
patent: 4272960 (1981-06-01), Wahl
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Bascomb, Jr. Wilbur L.
McGannon John L.
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