Method for inhibiting silica precipitation and scaling in geothermal flow systems

Patent · Fri Jun 13 00:00:00 EDT 1980

OSTI ID:6485163

Harrar, J E; Lorensen, L E; Locke, F E

A method for inhibiting silica scaling and precipitation in geothermal flow systems by on-line injection of low concentrations of cationic nitrogen-containing compounds, particularly polymeric imines, polymeric amines, and quaternary ammonium compounds is described.

• DOE Contract Number: W-7405-ENG-48
• Assignee: Dept. of Energy
• OSTI ID: 6485163
• Country of Publication: United States
• Language: English

Related Subjects

15 GEOTHERMAL ENERGY
BRINES
CORROSIVE EFFECTS
SCALE CONTROL
GEOTHERMAL FLUIDS
SILICA
PRECIPITATION
AMINES
AMMONIUM COMPOUNDS
CHLORIDES
CORROSION INHIBITORS
IMINES
ORGANIC NITROGEN COMPOUNDS
POLYMERS
SCALING
STEELS
TEFLON
ALLOYS
CHALCOGENIDES
CHLORINE COMPOUNDS
CONTROL
FLUIDS
FLUORINATED ALIPHATIC HYDROCARBONS
HALIDES
HALOGEN COMPOUNDS
HALOGENATED ALIPHATIC HYDROCARBONS
IRON ALLOYS
IRON BASE ALLOYS
MATERIALS
MINERALS
ORGANIC COMPOUNDS
ORGANIC FLUORINE COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
ORGANIC POLYMERS
OXIDES
OXYGEN COMPOUNDS
PETROCHEMICALS
PETROLEUM PRODUCTS
PLASTICS
POLYETHYLENES
POLYOLEFINS
POLYTETRAFLUOROETHYLENE
SEPARATION PROCESSES
SILICON COMPOUNDS
SILICON OXIDES
SYNTHETIC MATERIALS
150903* - Geothermal Engineering- Corrosion
Scaling & Materials Development