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Comparative Assessment of Biomass and Power-to-Gas Processes Integrated with Different Electricity-Driven Gasification Technologies

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  • Guohui Song

    (Jiangsu Provincial Key Laboratory of Multi-Energy Integration and Flexible Power Generation Technology, School of Energy and Power Engineering, Nanjing Institute of Technology, Nanjing 211167, China)

  • Xiaobo Cui

    (Jiangsu Provincial Key Laboratory of Multi-Energy Integration and Flexible Power Generation Technology, School of Energy and Power Engineering, Nanjing Institute of Technology, Nanjing 211167, China
    School of Energy and Environment, Southeast University, Nanjing 210096, China)

  • Liang Wang

    (Jiangsu Provincial Key Laboratory of Multi-Energy Integration and Flexible Power Generation Technology, School of Energy and Power Engineering, Nanjing Institute of Technology, Nanjing 211167, China)

  • Zheng Wei

    (Jiangsu Provincial Key Laboratory of Multi-Energy Integration and Flexible Power Generation Technology, School of Energy and Power Engineering, Nanjing Institute of Technology, Nanjing 211167, China)

Abstract

To develop a biomass and power-to-gas (BPtG) process for renewable electricity storage and sustainable synthetic natural gas (SNG) production, this work investigated five BPtG processes integrated with different electricity-driven gasification technologies based on simulation data. These processes were evaluated for SNG composition and yield, life-cycle energy and exergy efficiencies, life-cycle carbon emissions, and the equivalent unit production cost. The results show that the energy and exergy efficiencies of SNG from those processes range between 53.1 and 58.6% and 36.4 and 41.1%, respectively. Based on the energy allocation method, the carbon emissions without and with CO 2 capture ranges from 22.0 to 34.8 and from −43.4 to −17.6, respectively, in gCO 2 e/MJ SNG . These BPtG processes can produce low-carbon SNG and even achieve negative carbon emissions with CO 2 capture. Both feedstock and electricity costs have significant influences on the profitability of the processes. The BPtG process integrated with resistance heating gasification, plasma-assisted gasification, and moderate water electrolysis are recommended for their compromise of multi-perspective performances. This paper provided the orders of the five processes based on these indicators and recommendations for different applicable scenarios.

Suggested Citation

  • Guohui Song & Xiaobo Cui & Liang Wang & Zheng Wei, 2025. "Comparative Assessment of Biomass and Power-to-Gas Processes Integrated with Different Electricity-Driven Gasification Technologies," Clean Technol., MDPI, vol. 7(1), pages 1-20, January.
  • Handle: RePEc:gam:jcltec:v:7:y:2025:i:1:p:7-:d:1564186
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    References listed on IDEAS

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    1. Zhang, Xiaojin & Bauer, Christian & Mutel, Christopher L. & Volkart, Kathrin, 2017. "Life Cycle Assessment of Power-to-Gas: Approaches, system variations and their environmental implications," Applied Energy, Elsevier, vol. 190(C), pages 326-338.
    2. Mao, Chunlan & Feng, Yongzhong & Wang, Xiaojiao & Ren, Guangxin, 2015. "Review on research achievements of biogas from anaerobic digestion," Renewable and Sustainable Energy Reviews, Elsevier, vol. 45(C), pages 540-555.
    3. Song, Guohui & Xiao, Jun & Zhao, Hao & Shen, Laihong, 2012. "A unified correlation for estimating specific chemical exergy of solid and liquid fuels," Energy, Elsevier, vol. 40(1), pages 164-173.
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