GEOTHERMAL UTILIZATION SYSTEM, METHOD FOR SYNTHESIZING SILICALITE, AND METHOD FOR RECOVERING LITHIUM CARBONATE

PROBLEM TO BE SOLVED: To provide a geothermal utilization system that recovers a silica component from hot water prior to return to the underground using a more simply structured silica recovery device to reduce silica concentration in the hot water and is capable of reducing disposal cost of the re...

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Hauptverfasser:	NAKAGAWA YOSHITOSHI, NAGAISHI NAOAKI, NISHI TOSHIRO
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING CHEMISTRY COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM,RUBIDIUM, CAESIUM, OR FRANCIUM COMPOUNDS THEREOF GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS HEATING INORGANIC CHEMISTRY LIGHTING MACHINES OR ENGINES FOR LIQUIDS MECHANICAL ENGINEERING MECHANICAL-POWER PRODUCING DEVICES OR MECHANISMS, NOTOTHERWISE PROVIDED FOR OR USING ENERGY SOURCES NOT OTHERWISEPROVIDED FOR METALLURGY NON-METALLIC ELEMENTS OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR PRODUCING MECHANICAL POWER REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGYGENERATION, TRANSMISSION OR DISTRIBUTION SPRING, WEIGHT, INERTIA OR LIKE MOTORS TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE WEAPONS WIND, SPRING WEIGHT AND MISCELLANEOUS MOTORS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a geothermal utilization system that recovers a silica component from hot water prior to return to the underground using a more simply structured silica recovery device to reduce silica concentration in the hot water and is capable of reducing disposal cost of the recovered silica component.SOLUTION: This geothermal utilization system 1 separates a geothermal fluid from a production well 8 into steam and hot water by a steam-water separator 2, drives a turbine utilizing separated steam to generate electricity, and returns separated hot water from a return well 21 to the underground. The system 1 includes: a surfactant addition means 26 for adding a surfactant; a solid matter collection means 28 for collecting precipitated solid matter; a silica recovery device 5 for recovering a silica component from separated hot water prior to return to the underground; and a silicalite synthesis furnace 6 for synthesizing silicalite from a templating agent and a silica component recovered by the silica recovery device 5.