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  • Open Access

    ARTICLE

    Study on Influencing Factors of Methane Production Efficiency of Microbial Electrolytic Cell with CO2 as Carbon Source

    Qifen Li, Yuanbo Hou*, Yongwen Yang, Liting Zhang, Xiaoxiao Yan

    Journal of Renewable Materials, Vol.11, No.8, pp. 3333-3350, 2023, DOI:10.32604/jrm.2023.027464

    Abstract Reducing CO2 to produce methane through microbial electrolytic cell (MEC) is one of the important methods of CO2 resource utilization. In view of the problem of low methanogenesis rate and weak CO2 conversion rate in the reduction process, the flow field environment of the cathode chamber is changed by changing the upper gas circulation rate and the lower liquid circulation rate of the cathode chamber to explore the impact on the reactor startup and operation and products. The results showed that under certain conditions, the CO2 consumption and methane production rate could be increased by changing the upper gas recirculation… More >

  • Open Access

    ARTICLE

    Study on Biological Pathway of Carbon Dioxide Methanation Based on Microbial Electrolysis Cell

    Guanwen Ding, Qifen Li*, Liting Zhang, Yuanbo Hou, Xiaoxiao Yan

    Journal of Renewable Materials, Vol.11, No.1, pp. 197-207, 2023, DOI:10.32604/jrm.2023.020277

    Abstract Realization of CO2 resource utilization is the main development direction of CO2 reduction. The CO2 methanation technology based on microbial electrolysis cell (MEC) has the characteristics of ambient temperature and pressure, green and low-carbon, which meets the need of low-carbon energy transition. However, the lack of the system such as the change of applied voltage and the reactor amplification will affect the methane production efficiency. In this research, the efficiency of methane production with different applied voltages and different types of reactors was carried out. The results were concluded that the maximum methane production rate of the H-type two-chamber microbial… More >

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