Distillation: processes – separatory – Water purification only – Under pressure or vacuum
Patent
1976-11-22
1977-09-06
Bernstein, Hiram H.
Distillation: processes, separatory
Water purification only
Under pressure or vacuum
203DIG20, 203DIG1, 203 80, 203 91, 60641, 60648, B01D 306
Patent
active
040466400
ABSTRACT:
A process for simultaneously generating power and recovering potable water from a source of salinous water -- e.g. sea water. Salinous water, from a locus which is proximate to the surface of the source and at a relatively high temperature -- e.g. about 85.degree. F. -- is exposed to radiant solar energy to increase significantly the temperature thereof -- e.g. to a level of at least about 135.degree. F. The heated water is introduced into a plurality of flash separation zones, each succeeding one of which is maintained at a lower subatomospheric pressure than the preceding zone, to provide substantially non-salinous vapor phases. The salinous liquid phase is introduced in series through the plurality of flash zones. The vapor phases are utilized to vaporize hydrocarbons, in separate vaporizers, and the hydrocarbon vapors are passed through separate, individual turbines, or are introduced into different stages of a multi-stage turbine, from the resulting motion of which power is generated. Hydrocarbon vapors exiting from the turbines are condensed via indirect heat-exchange with a second salinous water portion, obtained from a second depth substantially below the surface, and at a comparatively lower temperature -- e.g. about 70.degree. F. -- and re-vaporized. The salinous liquid phase emanating from the last power flash zone is introduced into a separate vacuum flash separation zone, maintained at an absolute pressure less than that of the last flash zone in said plurality. The resulting vaporous phase, and those power flash vapors which were utilized to vaporize the hydrocarbons, are condensed, via indirect contact with the second salinous water portion, to recover potable liquid water.
The second salinous water portion, following condensation of the exiting turbine vapors, and the last obtained salinous liquid phase, from the separate flash separation zone, is returned to the original source of salinous water. The salinous liquid phase, returned to the sea water source, is at a temperature not more than 15.degree. F. greater than the temperature of the colder second salinous water portion.
REFERENCES:
patent: 1230417 (1917-06-01), Lillie
patent: 3468762 (1969-09-01), Klitzsih
patent: 3489652 (1970-01-01), Williamson
patent: 3531939 (1970-10-01), James
patent: 3928145 (1975-12-01), Othmer
patent: 4009082 (1977-02-01), Smith
Bernstein Hiram H.
Erickson Robert W.
Hoatson Jr. James R.
Page, II. William H.
UOP Inc.
LandOfFree
Power generation and potable water recovery from salinous water does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Power generation and potable water recovery from salinous water, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Power generation and potable water recovery from salinous water will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2161356