化工进展2025，Vol.44Issue(3)：1550-1558,9.DOI:10.16085/j.issn.1000-6613.2024-0345
Silicalite-1分子筛的低成本合成及其MTP催化性能
Synthesis and catalytic MTP performance of Silicalite-1 zeolite with low cost
摘要
Abstract
The efficient,environmentally friendly,and cost-effective synthesis of zeolites holds significant importance in both academic and industrial applications.Traditionally,the synthesis of pure silicon MFI zeolite(Silicalite-1)through hydrothermal methods employing non-organic amine systems posed substantial challenges due to weak directing abilities and competitive growth of impure phases.In this study,Silicalite-1 zeolite was successfully synthesized in a methanol system,and particular attention was paid to the role of methanol and the crystallization conditions(water-to-silica ratio,alcohol-to-silica ratio,etc.)during the hydrothermal synthesis process.Computational and characterization techniques such as Monte Carlo simulations,XRD,SEM,TG,N2 adsorption-desorption,and NH3-TPD were employed.The results indicated that the introduction of seed crystals significantly improved the initial nucleation difficulties in the methanol system;a pure phase of Silicalite-1 with high crystallinity was directly synthesized when the seed crystal input was 3%and the alcohol-to-silica ratio was 3.3,showing excellent catalytic activity in the MTP reaction.Lastly,the low-cost synthesis strategy for Silicalite-1 proposed in this paper has notable research value and industrial application prospects.关键词
分子筛/合成/蒙特卡罗模拟/催化剂/稳定性Key words
molecular sieves/synthesis/Monte Carlo simulation/catalyst/stability分类
化学化工引用本文复制引用
陶金泉,贾亦静,白天瑜,姚荣鹏,黄文斌,崔岩,周亚松,魏强..Silicalite-1分子筛的低成本合成及其MTP催化性能[J].化工进展,2025,44(3):1550-1558,9.基金项目
国家自然科学基金(22078360). （22078360）
