Comparison of amine-impregnated mesoporous carbon with microporous activated carbon and 13X zeolite for biogas purification

Three materials were directly compared for their potential for biogas purification: 13X zeolite, microporous activated carbon and mesoporous activated carbon impregnated with polyethyleneimine. The amine-impregnated material showed the highest selectivity for CO2 over CH4 but this should be balanced by the higher operating temperature required. All three materials could be used for biogas purification. See Gibson et al. for further details: https://doi.org/10.1007/s10934-017-0387-0 .

本研究直接对比了三种材料应用于沼气纯化的性能潜力：13X沸石（13X zeolite）、微孔活性炭（microporous activated carbon）以及经聚乙烯亚胺（polyethyleneimine）浸渍的介孔活性炭（mesoporous activated carbon）。该经胺基浸渍的材料对二氧化碳（CO₂）相较于甲烷（CH₄）展现出最高的选择性，但该性能优势需以更高的操作温度作为权衡条件。上述三种材料均可应用于沼气纯化工艺。更多细节可参阅Gibson等人（Gibson et al.）的相关研究：https://doi.org/10.1007/s10934-017-0387-0。