Improvements in geothermal electric power and silica production

Patent ·

OSTI ID:5427171

Hill, J H; Fulk, M M

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.

• DOE Contract Number: W-7405-ENG-48
• Assignee: TIC; ERA-05-023991; EDB-80-065402
• OSTI ID: 5427171
• Country of Publication: United States
• Language: English

Related Subjects

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