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Greenhouse Gases

CarbonCure, CarbonBuilt win Carbon XPRIZE

by Melody M. Bomgardner
April 24, 2021 | A version of this story appeared in Volume 99, Issue 15

 

Photo shows a valve box for mixing CO<sub>2</sub> into concrete.
Credit: CarbonCure
CarbonCure mixes CO2 into concrete, mineralizing the greenhouse gas.

Two cement technology teams have each won $7.5 million from the NRG Cosia Carbon XPRIZE for their technology to trap carbon dioxide from industrial emissions by mineralizing it inside concrete, the world’s most used building material. The start-up CarbonCure Technologies won for its ability to capture CO2 from a natural gas–fired power plant in Alberta. CarbonBuilt, a team led by University of California, Los Angeles, engineering and materials science professor Gaurav N. Sant, prevailed in a test at a coal-fired power plant in Wyoming.

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