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Title: Improvements in geothermal electric power and silica production

Abstract

Electricity is generated from hot geothermal solution by extracting heat therefrom, mineral solids which form in a so cooled geothermal solution are separated to recover minerals and facilitate reinjection of the solution into the ground. The separated solids are treated to recover silica by addition of an acid (amorphous silica precipitates) or a base (other minerals precipitate and soulble silicates are formed which are subsequently precipitated by acid neutralization). If desired, after silica is separated, other minerals can be separated and recovered.

Inventors:
;
OSTI Identifier:
5427171
Assignee:
TIC; ERA-05-023991; EDB-80-065402
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
15 GEOTHERMAL ENERGY; SILICA; PRECIPITATION; RECOVERY; AMORPHOUS STATE; AQUEOUS SOLUTIONS; GEOTHERMAL ENERGY CONVERSION; GEOTHERMAL FLUIDS; MINERALS; REINJECTION; CHALCOGENIDES; CONVERSION; DISPERSIONS; ENERGY CONVERSION; FLUIDS; MIXTURES; OXIDES; OXYGEN COMPOUNDS; SEPARATION PROCESSES; SILICON COMPOUNDS; SILICON OXIDES; SOLUTIONS; 150600* - Geothermal Energy- Environmental Aspects; 150700 - Geothermal Energy- Products & By-Products

Citation Formats

Hill, J.H., and Fulk, M.M. Improvements in geothermal electric power and silica production. United States: N. p., Web.
Hill, J.H., & Fulk, M.M. Improvements in geothermal electric power and silica production. United States.
Hill, J.H., and Fulk, M.M. . "Improvements in geothermal electric power and silica production". United States.
@article{osti_5427171,
title = {Improvements in geothermal electric power and silica production},
author = {Hill, J.H. and Fulk, M.M.},
abstractNote = {Electricity is generated from hot geothermal solution by extracting heat therefrom, mineral solids which form in a so cooled geothermal solution are separated to recover minerals and facilitate reinjection of the solution into the ground. The separated solids are treated to recover silica by addition of an acid (amorphous silica precipitates) or a base (other minerals precipitate and soulble silicates are formed which are subsequently precipitated by acid neutralization). If desired, after silica is separated, other minerals can be separated and recovered.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {},
month = {}
}