Utilization of Coal Gangue to Develop Porous Adsorbents for CO2 Capture

Carbon capture, utilization, and sequestration (CCUS) is a promising technique to mitigate global warming as we continue to gradually switch towards cleaner fuels. In this technique, carbon dioxide, emitted from various sources including power plants and industries, is captured, utilized as feedstock for various chemicals, and injected into the subsurface including in deep sea aquifers and depleted oil and gas fields. Currently, amine-based processes are commonly used for carbon dioxide capture. However, this technique has various disadvantages including being energy intensive and requiring expensive solvents. The objective of this study is to develop low cost porous adsorbents for carbon dioxide capture utilizing waste material generated during coal mining process.