Geothermal plant silica control system

Details Geothermal plant silica control system Geothermal plant silica control system

1980-08-13

1984-02-07

Ostrager, Allen M.

Power plants

Utilizing natural heat

Geothermal

210170, 210714, 210747, 606412, F03G 700

Patent

active

044295359

ABSTRACT:
A system for reducing silica scaling in a geothermal power plant energized by high temperature, high silica content geothermal brine from a source such as the Salton Sea geothermal field or the Brawley geothermal field. Particulate material capable of seeding silica precipitation thereon is injected into one or more zones in heat extraction equipment such as steam separators where substantial temperature drops occur, so as to seed the precipitation of dissolved silica from the brine in suspended, particulate form rather than as scaling in the heat extraction equipment. The silica precipitation seeding may be accomplished in flash crystallizer type steam separators, and the particulate seed material may be silica particles recovered from a reactor clarifier downstream of the heat extraction equipment.

REFERENCES:
patent: 3951794 (1976-04-01), Swearingen
patent: 4127989 (1978-12-01), Mickelson
patent: 4304666 (1981-12-01), Van Note
patent: 4370858 (1983-02-01), Anerbuch et al.

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