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Drastic enhancement of CO2 adsorption capacity by negatively charged sub-bituminous coal

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  • Abid, Hussein Rasool
  • Iglauer, Stefan
  • Al-Yaseri, Ahmed
  • Keshavarz, Alireza

Abstract

Climate change is a key problem of the 21st century. Climate change is mainly caused by anthropogenic CO2 emissions, and one solution to this problem is to capture and store CO2 in deep coal seams, where it is immobilized by adsorption to the coal surface. Here we propose to modify the coal with methyl orange (MO), a typical dye that is also a major pollutant of the hydrosphere and removed thereby. Thus, raw and MO-modified coals were characterized to investigate their thermal stabilities, textural properties, carbon contents, surface characteristics, and CO2 adsorption on the coal samples was measured at typical storage conditions (323 K and pressures up to 37.5 bar). CO2 adsorption dramatically increased in the MO-coal, from 1.95 mol. kg−1 (raw coal) to 18.7 mol. kg −1.

Suggested Citation

  • Abid, Hussein Rasool & Iglauer, Stefan & Al-Yaseri, Ahmed & Keshavarz, Alireza, 2021. "Drastic enhancement of CO2 adsorption capacity by negatively charged sub-bituminous coal," Energy, Elsevier, vol. 233(C).
    • Handle: RePEc:eee:energy:v:233:y:2021:i:c:s0360544221011725
    DOI: 10.1016/j.energy.2021.120924
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    References listed on IDEAS

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    1. Ningning Zhao & Tianfu Xu & Kairan Wang & Hailong Tian & Fugang Wang, 2018. "Experimental study of physical‐chemical properties modification of coal after CO2 sequestration in deep unmineable coal seams," Greenhouse Gases: Science and Technology, Blackwell Publishing, vol. 8(3), pages 510-528, June.
    2. Burgess, Matthew G. & Ritchie, Justin & Shapland, John & Pielke, Roger Jr, 2020. "IPCC baseline scenarios over-project CO2 emissions and economic growth," SocArXiv ahsxw, Center for Open Science.
    3. repec:cdl:itsrrp:qt5c66j062 is not listed on IDEAS
    4. repec:cdl:itsdav:qt69c427zk is not listed on IDEAS
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    Cited by:

    1. Lu Wang & Zhijun Jin & Xiaowei Huang & Runchao Liu & Yutong Su & Qian Zhang, 2024. "Hydrogen Adsorption in Porous Geological Materials: A Review," Sustainability, MDPI, vol. 16(5), pages 1-21, February.

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