Yang Hanmin, Nuran Zaini Ilman, Pan Ruming, Jin Yanghao, Wang Yazhe, Li Lengwan, Caballero José Juan Bolívar, Shi Ziyi, Subasi Yaprak, Nurdiawati Anissa, Wang Shule, Shen Yazhou, Wang Tianxiang, Wang Yue, Sandström Linda, Jönsson Pär G, Yang Weihong, Han Tong
Department of Materials Science and Engineering, KTH Royal Institute of Technology, SE-10044, Stockholm, Sweden.
School of Energy Science and Engineering, Harbin Institute of Technology, Harbin, 150001, China.
Nat Commun. 2024 May 8;15(1):3868. doi: 10.1038/s41467-024-47534-8.
This study introduces a distributed electrified heating approach that is able to innovate chemical engineering involving endothermic reactions. It enables rapid and uniform heating of gaseous reactants, facilitating efficient conversion and high product selectivity at specific equilibrium. Demonstrated in catalyst-free CH pyrolysis, this approach achieves stable production of H (530 g h L ) and carbon nanotube/fibers through 100% conversion of high-throughput CH at 1150 °C, surpassing the results obtained from many complex metal catalysts and high-temperature technologies. Additionally, in catalytic CH dry reforming, the distributed electrified heating using metallic monolith with unmodified Ni/MgO catalyst washcoat showcased excellent CH and CO conversion rates, and syngas production capacity. This innovative heating approach eliminates the need for elongated reactor tubes and external furnaces, promising an energy-concentrated and ultra-compact reactor design significantly smaller than traditional industrial systems, marking a significant advance towards more sustainable and efficient chemical engineering society.
本研究介绍了一种分布式电加热方法，该方法能够革新涉及吸热反应的化学工程。它能够对气态反应物进行快速且均匀的加热，有助于在特定平衡条件下实现高效转化和高产物选择性。在无催化剂的CH热解中得到证明，该方法通过在1150°C下100%转化高通量CH，实现了H（530 g h L ）以及碳纳米管/纤维的稳定生产，超过了许多复杂金属催化剂和高温技术所取得的结果。此外，在催化CH干重整中，使用带有未改性Ni/MgO催化剂涂层的金属整料的分布式电加热展现出优异的CH和CO转化率以及合成气生产能力。这种创新的加热方法无需使用细长的反应管和外部加热炉，有望实现一种能量集中且超紧凑的反应器设计，其尺寸显著小于传统工业系统，标志着朝着更可持续、高效的化学工程社会迈出了重要一步。
