Development of a sustainable nitrogen-doped biochar desulfurizer for solid oxide fuel cell systems
Development of a sustainable nitrogen-doped biochar desulfurizer for solid oxide fuel cell systems
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开发用于固体氧化物燃料电池系统的可持续掺氮生物炭脱硫剂
DOI：
10.1016/j.biombioe.2022.106631
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发表时间：
2022
影响因子：
6
通讯作者：
Shiratori Yusuke
中科院分区：
文献类型：
--
作者：
Setiawan Hendrik;Sakamoto Mio;Fujisaki Takaya;Lyth Stephen Matthew;Shiratori Yusuke
以沼气为燃料的固体氧化物燃料电池（SOFC），如果燃料中含有微量的H2S，会导致性能下降。在这里，氮掺杂稻壳生物炭作为一种可持续的材料，通过吸附沼气脱硫。利用从氨水溶液中蒸发出的NH3作为模拟气态液体对生物炭进行氮掺杂，发现氮掺杂显著提高了生物炭对H2S的吸附。此外，总的H2S吸附容量是2.3倍高，与纯NH3气源处理的生物炭相比。这种改善归因于较低的吡啶-N含量，导致较低程度的O* 自由基形成，并最终，更好的氮利用率。
Solid oxide fuel cells (SOFCs) running on biogas can undergo performance degradation if a trace H2S is present in the fuel. Here, nitrogen-doped rice husk biochar was employed as a sustainable material for desulfurization of biogas via adsorption. The biochar was doped with nitrogen using NH3evaporated from ammonia solution, as a simulated digestate liquid, and this was found to significantly improve H2S adsorption. Furthermore, the total H2S adsorption capacity was 2.3 times higher compared to biochar treated with a pure NH3gas source. This improvement was attributed to lower pyridinic-N content, leading to a lower degree of O* radical formation, and ultimately, better micropore utilization.