Effective hydroconversion of aromatic-rich oil to liquid organic hydrogen carriers over a β zeolite-supported nickel nanoparticles

作者：Xiaoqi Zhang, Kai Meng, Xiaoyu Li, Yiqiang Qi, Jiang Wu, Liying Xie, He Liu, Aijun Guo · 发表于：Journal of Physics Conference Series · 年份：2025 · DOI：10.1088/1742-6596/3064/1/012002 · 研究领域：Hydrogen Storage and Materials、Hybrid Renewable Energy Systems、Catalysts for Methane Reforming

Abstract To address the challenges of comprehensive utilization of aromatic-rich oil (ARO) and the storage and transportation of hydrogen, we report a mild-condition hydrogenation strategy for ARO, from which Liquid organic hydrogen carriers (LOHCs) can be derived. In this study, a Ni-based catalyst supported on H-type β zeolite was prepared via a chemical precipitation method. The resulting supported Ni/ β -zeolite catalyst exhibited excellent catalytic activity. Under optimized reaction conditions, the hydrogenation of naphthalene was particularly remarkable, achieving 100% conversion and 100% yield of decalin. Moreover, hydrogenation of ARO under 200 °C and 5 MPa for 6 h led to the effective conversion of nearly all aromatics into high-value products such as cycloalkanes, octahydroindene derivatives, decalin and its homologs, and dicyclohexyl derivatives, with a total yield of 99% and the hydrogen storage capacity was approximately 5.82 wt%. These results indicate that the prepared Ni/ β catalyst not only exhibits high activity and good stability but also enables efficient transformation of aromatics into valuable LOHCs.