|About this Abstract
||2022 TMS Annual Meeting & Exhibition
||REWAS 2022: Decarbonizing the Materials Industry
||Field Demonstration of the Reversa Mineral Carbonation Process Using Coal and Natural Gas Flue Gas Streams
||Dale P. Prentice, Iman Mehdipour, Gabriel Falzone, Stephen Raab, Dante Simonetti, Gaurav Sant
|On-Site Speaker (Planned)
||Dale P. Prentice
Concrete, a mixture composed of a cementation agent, mineral aggregates, and water has the potential to serve as a gigaton-scale sink for carbon dioxide (CO2). The CarbonBuilt’s Reversa process, developed at UCLA exploits simple acid-base chemistry to mineralize CO2-dilute flue gas emissions into mineral carbonate-based cementation agents at ambient pressure, at flue gas temperatures, and without a need for carbon capture. The Reversa technology was upscaled and demonstrated using a modularized pilot-plant at two national carbon capture test centers using coal- (~12 vol. % CO2) and natural gas (~4 vol. % CO2) flue gas streams. The field demonstration led to the production of over 15,000 concrete blocks and achieved: (1) a CO2 utilization efficiency in excess of 75%, (2) greater than 250 kg of CO2 utilization per 13 tonnes of concrete (i.e. one production run), and (3) the blocks produced were confirmed to be compliant with all relevant industry specifications.