New & Renewable Energy (신재생에너지)

Korean Society for New and Renewable Energy (한국신·재생에너지학회)
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Carbon Dioxide Adsorption Study of Biochar Produced from Shiitake Mushroom Farm by-product Waste Medium

표고버섯 농가 부산물 폐배지 기반 바이오차의 이산화탄소 흡착 연구

  • Gyuseob Song (Graduate School of Energy Science and Technology, Chungnam National University) ;
  • Jinseung Kim (Clean Air Research laboratory, Korea Institute of Energy Research) ;
  • Juhyoung Park (Clean Air Research laboratory, Korea Institute of Energy Research) ;
  • Younghoon Noh (Clean Air Research laboratory, Korea Institute of Energy Research) ;
  • Youngchan Choi (Clean Air Research laboratory, Korea Institute of Energy Research) ;
  • Youngjoo Lee (Clean Air Research laboratory, Korea Institute of Energy Research) ;
  • Kyubock Lee (Graduate School of Energy Science and Technology, Chungnam National University)
  • Received : 2023.12.09
  • Accepted : 2024.02.08
  • Published : 2024.03.25
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Abstract

The present study investigated waste medium from a domestic shiitake mushroom farm, which was pyrolyzed to produce biochar. The yield rate of the biochar was compared after exposure to various pyrolysis temperature conditions, and the characteristics of the produced biochar were analyzed. The present study focused on the carbon dioxide (CO2) adsorption capacity of the resulting biochar. The CO2 adsorption capacity exhibited a correlation with the pyrolysis temperature of the biochar, with increasing temperatures resulting in higher CO2 adsorption capacities. Brunauer-Emmett-Teller (BET) analysis showed that the CO2 adsorption capacity was related to the surface area and pore volume of the biochar. Calcium is added to the process of producing mushroom medium. Experiments were performed to investigate the CO2 adsorption capacity of the biochar from the waste medium with the addition of calcium. In addition, CO2 adsorption experiments were conducted after the pyrolysis of kenaf biochar with the addition of calcium. The results of these experiments show that calcium affected the CO2 adsorption capacity.

Keywords

Acknowledgement

본 논문은 중소벤처기업부의 Net-zero 기술혁신개발사업(RS-2022-00165586)의 지원으로 수행하였습니다.

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