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Green Chemistry

CarbonFree, Sekisui advance CO2-to-chemicals projects

by Craig Bettenhausen
August 7, 2021 | A version of this story appeared in Volume 99, Issue 29

Two firms recently struck deals to bring their technology for carbon capture and use closer to the market. CarbonFree, which is developing a technology to react CO2 with calcium and magnesium salts to make limestone and baking soda, has brought on the engineering firm Fluor to scale up its process from its long-running pilot systems. CarbonFree says it aims to eventually capture 10% of the world’s industrial CO2 emissions. Separately, the steelmaker ArcelorMittal will test a CO2 recycling process developed by Sekisui Chemical. During the 3-year, $1.9 million trial, Sekisui’s system will capture CO2 emitted during steel production, convert it into a carbon monoxide–hydrogen mixture, then pipe it back upstream to chemically reduce more iron ore.

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