Cellulose-modulated Gas-Liquid-Solid Carbon Capture via Precipitation (GLS-CCP):  Kinetics and Phase Evolution

This project focuses on developing a cellulose-assisted aqueous carbonation system for permanent and safe CO₂ utilization and storage. Conventional CO₂ absorbents, such as high-temperature molten salts, often require large energy input, while aqueous absorption systems involve complex mass transfer and multi-step chemical reactions. To achieve a energy and uptake-efficient strategy and create financial value,  in this study, cellulose is introduced as an organic matrix to support mineral carbonation in an alkaline aqueous environment. This process aims to produce lightweight and high-strength organic–mineral composites with potential use as building materials, while also enabling long-term stable CO₂ storage. A key part of the project is to investigate the reaction kinetics of the aqueous carbonation system. By studying the effects of parameters including temperature, cellulose content and calcium chloride ratio, the project seeks to identify optimal conditions for improving CO₂ uptake efficiency, minimize passivation, and boost mineral formation. Overall, this work combines CO₂ capture, mineral sequestration, and material development, providing a potential route toward low-energy carbon utilization and value-added composite materials.