中国石油大学学报（自然科学版）2024，Vol.48Issue(4)：215-223,9.DOI:10.3969/j.issn.1673-5005.2024.04.024
有机液相储氢载体脱氢催化剂的制备及催化性能
Preparation and catalytic performance of dehydrogenation catalyst in organic liquid phase hydrogen storage carrier
摘要
Abstract
A series of Pt-Sn/Al2 O3 catalysts with different Sn loadings,Pt/activated carbon and Pt/Al2 O3 monometallic cata-lysts were prepared by an equal volume co-impregnation process.The catalysts were characterized using X-ray diffraction(XRD),high resolution transmission electron microscopy(HRTEM),temperature-programmed desorption of ammonia(NH3-TPD),and N2 adsorption at low temperature.The results show that the acidity and strength of the alumina supported catalyst are higher than those of the activated carbon supported catalyst,but the acidity of the Pt-Sn catalyst on the alumina supported catalyst is weakened to varying degrees after loading Sn.The 0.5Pt-0.2Sn/Al2 O3(mass fraction,%)catalyst with the best dehydrogenation effect was selected for the methyl cyclohexane toluene hydrogen storage system.The selectivity for toluene exceeds 99%,and the dehydrogenation rate is morw than 97%.After 60 d of long-term operation,the conversion rate of methyl cyclohexane dehydrogenation exceeds 98.5%,the selectivity for toluene is higher than 99%,and the catalyst dose not show any deactivation.关键词
Pt催化剂/Pt-Sn催化剂/脱氢/苄基甲苯/甲基环己烷Key words
Pt catalyst/Pt-Sn catalyst/dehydrogenation/methylcyclohexane/monobenzyltoluene分类
化学化工引用本文复制引用
赵世栋,周路阳,商红岩,徐永强,张洪伟,林旭锋..有机液相储氢载体脱氢催化剂的制备及催化性能[J].中国石油大学学报（自然科学版）,2024,48(4):215-223,9.基金项目
国家自然科学基金面上项目(21576291) （21576291）
日照市自然科学基金项目(RZ2021ZR40) （RZ2021ZR40）
