燃料化学学报2021，Vol.49Issue(5)：712-726,后插1-后插6,21.DOI:10.1016/S1872-5813(21)60061-0
ZSM-22/ZSM-23共晶分子筛的合成及其正十六烷加氢异构催化性能
Synthesis of ZSM-22/ZSM-23 intergrowth zeolite as the catalyst support for hydroisomerization of n-hexadecane
摘要
Abstract
ZSM-22/ZSM-23 intergrowth zeolite was successfully synthesized by hydrothermal method with diethylamine and dimethylamine as co-structure directing agents at a dimethylamine/diethylamine molar ratio of 24. The physicochemical properties of ZSM-22/ZSM-23 intergrowth zeolite including the crystallinity, crystal morphology, texture and acidity were determined by XRD, FE-SEM, TEM, N2-physisorption, NH3-TPD, Py-FTIR, and so on; the performance of Pt/ZSM-22/ZSM-23 catalyst prepared by impregnation in the hydroisomerization of n-hexadecane was then investigated. The results indicate that the ZSM-22/ZSM-23 intergrowth zeolite displays the needle-like morphology with the topological structures of both ZSM-22 and ZSM-23, which is rather different from pure ZSM-22 and ZSM-23 and their mechanical mixture. After loading 0.5％ Pt, the bi-functional Pt/ZSM-22/ZSM-23 catalyst exhibits excellent performance in the hydroisomerization of n-hexadecane, with a much higher yield of i-C16 products (dominated by mono-branched isomers) than those obtained over Pt supported on ZSM-22 and ZSM-22 and their mechanical mixture.关键词
ZSM-22/ZSM-23/共晶分子筛/正十六烷/加氢异构Key words
ZSM-22/ZSM-23/intergrowth zeolite/n-hexadecane/hydroisomerization分类
化学化工引用本文复制引用
宋成业,孟记朋,李闯,帕哈尔·泽耀东,梁长海..ZSM-22/ZSM-23共晶分子筛的合成及其正十六烷加氢异构催化性能[J].燃料化学学报,2021,49(5):712-726,后插1-后插6,21.基金项目
The project was supported by the National Key Research & Development Program of China (2016YFB0600305), the National Natural Science Foundation of China (22038008) and the China Postdoctoral Science Foundation (2019M651119). （2016YFB0600305）
