Massachusetts Institute of Technology

Andres Badel

Yet-Ming Chiang

Leah Ellis

Isaac W Metcalf

Fei Wang

Chemical reaction devices involving acid and/or base, and related systems and methods, are generally described.

Chemical reaction devices involving acid and/or base, and related systems and methods

Reaction schemes involving acids and bases; reactors comprising spatially varying chemical composition gradients (e.g., spatially varying pH gradients), and associated systems and methods, are generally described. For example, methods comprising producing an acid; dissolving a material comprising calcium in the acid to produce calcium ions; treating the calcium ions to produce solid calcium hydroxide and/or calcium oxide; and utilizing the solid calcium hydroxide and/or calcium oxide in a downstream process to produce a cement, wherein the downstream process comprises heating the solid calcium hydroxide and/or calcium oxide in a kiln are described.

Reaction schemes involving acids and bases; reactors comprising spatially varying chemical composition gradients; and associated systems and methods

Reaction schemes involving acids and bases; reactors comprising spatially varying chemical composition gradients (e.g., spatially varying pH gradients), and associated systems and methods, are generally described. For example, methods comprising producing an acid and a base via electrolysis; dissolving a material comprising calcium using the acid to produce ions comprising calcium in a region of a reactor with a pH of 6 or less; precipitating solid calcium hydroxide from the ions comprising calcium using the base in a region of a reactor with a pH of 10 or higher; and utilizing the calcium hydroxide in a downstream process to form a cement are described.

Multi-phase electrochemical cells and related systems and methods are generally described.

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Deerfield Beach, FL, United States of America

Andres Badel