This slurry is reacted with supercritical carbon dioxide (CO2) to produce magnesite (MgCO3). The process developed at ARC utilizes a slurry of water mixed with a magnesium silicate mineral, olivine, or serpentine. The ARC tests have focused on ex-situ mineral carbonation in an aqueous system. Other participants in this Program include the Los Alamos National Laboratory, Arizona State University, Science Applications International Corporation, and the DOE National Energy Technology Laboratory. #Reactivity trend seriesof Energy (DOE) has been conducting a series of mineral carbonation tests at its Albany, Oregon, facility over the past 2 years as part of a Mineral Carbonation Study Program within the DOE. The Albany Research Center (ARC) of the U.S. In addition to supporting the deployment of carbon storage technologies in a climate-responding world, the findings may help improve understanding of how carbonation and serpentinization processes influence critical geochemical =, number = 8, Additional outcomes include the identification of important knowledge gaps and research frontiers for carbon mineralization, including those related to unraveling competitive serpentinization reactions, H2O-saturated supercritical CO2 (wet scCO2) reactivity, and the formation and impacts of secondary surface coatings. By comparison with related efforts focused solely on olivine dissolution rates, we demonstrate that the kinetics are controlled by growth of magnesium carbonates. The unified results clearly show that olivine carbonation is optimized at 185-200 ☌, and indicate a change in the carbonation reaction mechanism above 90 ☌. Time-dependent transformation curves were determined, analyzed, and used to calculate temperature-dependent carbonation rate constants from 50-300 ☌. To enable better predictions and optimization of its carbonation rate, here we compile the results of 15 separate studies into an internally consistent kinetic framework. Modelling Reaction Kinetics of Distonic Radical Ions: A Systematic Investigation of Phenyl-type Radical Addition to Unsaturated Hydrocarbons.Magnesium-dominant olivine (Mg2SiO4) has received considerable attention for geologic and ex situ carbon mineralization due to its reaction potential with CO2 and its abundance in mafic and ultramafic rocks. Turner, Patricia Dianne Kelly, Stephen Blanksby, Gabriel da Silva, Adam Trevitt. Spin‐Spin Coupling Controls the Gas‐Phase Reactivity of Aromatic σ‐Type Triradicals.
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