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ABSTRACT SRI International demonstrated a new process for the extraction of lithium from geothermal brines based on new high-capacity selective sorbents (material used to absorb or adsorb liquids or gases) and a new sorbent regeneration process. Recovery of lithium from geothermal brines is expected to help the economics of geothermal energy production in California by generating revenue from the production and sale of lithium carbonate. Lithium recovery is also expected to create thousands of new jobs in the United States. Lithium is a high-value metal used in lithium-rechargeable batteries. It is found in low but significant concentrations in geothermal waters (specifically a few hundred parts per million). Because of the very large volume of brine processed in a geothermal power plant (hundreds of cubic meters per hour), even low-lithium brines represent a valuable resource. SRI International’s technology enables lithium carbonate producers to extract lithium from brines using a fast, cost-effective, and selective process adaptable to a variety of brines, including geothermal brines. Compared to traditional methods of lithium recovery from brines, SRI International’s sorbents and regeneration processes are expected to lower the cost of lithium production by allowing online separation with higher recovery efficiency and using smaller volumes of sorbent, minimizing processing time. The project team demonstrated extraction of lithium with efficiency as high as 90 percent and detected no significant loss in capacity after repeated lithium adsorption-desorption cycles. The co-production of geothermal power and lithium carbonate will effectively lower the cost of geothermal power in California, making geothermal energy competitive with other sources of renewable energy. Keywords: Lithium, geothermal brine, geothermal power, sorbent, solid-phase extraction Please use the following citation for this report: Ventura, Susanna, Srinivas Bhamidi, Marc Hornbostel, Anoop Nagar. 2020. Selective Recovery of Lithium from Geothermal Brines. California Energy Commission. Publication Number: CEC- 500-2020-020. iiiPDF Image | Selective Recovery of Lithium from Geothermal Brines
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Product and Development Focus for Infinity Turbine
ORC Waste Heat Turbine and ORC System Build Plans: All turbine plans are $10,000 each. This allows you to build a system and then consider licensing for production after you have completed and tested a unit.Redox Flow Battery Technology: With the advent of the new USA tax credits for producing and selling batteries ($35/kW) we are focussing on a simple flow battery using shipping containers as the modular electrolyte storage units with tax credits up to $140,000 per system. Our main focus is on the salt battery. This battery can be used for both thermal and electrical storage applications. We call it the Cogeneration Battery or Cogen Battery. One project is converting salt (brine) based water conditioners to simultaneously produce power. In addition, there are many opportunities to extract Lithium from brine (salt lakes, groundwater, and producer water).Salt water or brine are huge sources for lithium. Most of the worlds lithium is acquired from a brine source. It's even in seawater in a low concentration. Brine is also a byproduct of huge powerplants, which can now use that as an electrolyte and a huge flow battery (which allows storage at the source).We welcome any business and equipment inquiries, as well as licensing our turbines for manufacturing.CONTACT TEL: 608-238-6001 Email: greg@infinityturbine.com (Standard Web Page)