Searles Valley Minerals
Capture of CO2 from coal-fired power plant for use in production of soda ash
Searles Valley Minerals, a company which produces two million tonnes of soda ash, sodium sulfate, and boron a year, captures around 270,000 tonnes of CO2 per year at its soda ash plant in Trona, California.
The CO2 is captured from the flue gas of a coal power plant, using amine scrubbing technology, and is then used for the carbonation of brine in the process of producing soda ash.
In 1976, the North American Chemical Company had commissioned an 800 tonnes per day CO2 capture plant, which is still operating today. In 2009, the company stated that its CO2 emissions were at least 15% below 1990 levels.
The minerals extracted by Searles Valley Minerals are used by customers in the production of a wide variety of goods, including glass, ceramics, and insulation materials.