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 = {}
}
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