Power plants – Utilizing natural heat – Geothermal
Patent
1995-03-13
1998-10-06
Lazarus, Ira S.
Power plants
Utilizing natural heat
Geothermal
60651, 60655, F03G 700
Patent
active
058160485
ABSTRACT:
A method for utilizing acidic geothermal fluid (e.g., fluid having a pH of less than about 3.5) containing non-condensable gases in a geothermal power plant includes separating the geothermal fluid into steam and brine, applying the steam to a device from which power and steam condensate is produced. Such device can be a back-pressure steam turbine whose exhaust can be cooled by organic fluid to produce organic vapor that is expanded in an organic vapor turbine. Alternatively, the steam can be applied to the steam-side of an indirect contact heat exchanger containing a liquid organic working fluid for producing steam condensate and vaporized working fluid. In such case, the steam condensate produced by the heat exchanger is less acidic than the brine. The vaporized working fluid is expanded in an organic vapor turbine for producing electricity and expanded working fluid, and the expanded working fluid is condensed for producing condensed organic fluid which is preheated and supplied to the heat exchanger. Preheating of the condensed organic fluid is achieved using heat contained in both the steam condensate and brine which are cooled thereby. The dilution of the brine by the steam condensate causes the concentration of acids, e.g., hydrochloric acid, and salts in the brine, to return to less than their original values in the geothermal brine.
REFERENCES:
patent: 3845627 (1974-11-01), Hutchinson
patent: 3862545 (1975-01-01), Ellis et al.
patent: 4057964 (1977-11-01), Hurtchinson
patent: 4132075 (1979-01-01), Fleck et al.
patent: 4291538 (1981-09-01), Husain et al.
patent: 4319895 (1982-03-01), Kemmer
patent: 4542625 (1985-09-01), Bronicki
patent: 4996846 (1991-03-01), Bronicki
patent: 5038567 (1991-08-01), Mortiz
patent: 5440882 (1995-08-01), Kalina
patent: 5483797 (1996-01-01), Rigal et al.
patent: 5598706 (1997-02-01), Bronicki et al.
Geothermal Resource Permit Application Amendment for the Puna Geothermal Venture Project, Dec. 1988.
Optimisation of Geothermal Power Plant by Use of Freon Vapour Cycle, 1969.
Bronicki Lucien Y.
Grassiani Moshe
Kaplan Uri
Basichas Alfred
Lazarus Ira S.
Sandler Donald M.
LandOfFree
Method for utilizing acidic geothermal fluid for generating powe does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method for utilizing acidic geothermal fluid for generating powe, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for utilizing acidic geothermal fluid for generating powe will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-67752