Melting-assisted solvent-free synthesis of SAPO-11 for improving the hydroisomerization performance of n-dodecane

作     者：Gan Yu Xinqing Chen Wenjie Xue Lixia Ge Ting Wang Minghuang Qiu Wei Wei Peng Gao Yuhan sun 余淦;陈新庆;薛文杰;葛丽霞;王婷;丘明煌;魏伟;高鹏;孙予罕

作者机构：School of Physical Science and TechnologyShanghaiTech UniversityShanghai 201210China CAS Key Laboratory of Low-Carbon Conversion Science and EngineeringShanghai Advanced Research InstituteChinese Academy of SciencesShanghai 201210China University of Chinese Academy of SciencesBeijing 100049China 

出 版 物：《Chinese Journal of Catalysis》 (催化学报（英文）)

年 卷 期：2020年第41卷第4期

页      面：622-630页

核心收录：

学科分类：081704[工学-应用化学] 07[理学] 070304[理学-物理化学(含∶化学物理)] 08[工学] 0817[工学-化学工程与技术] 0703[理学-化学] 

基　　金：supported by the National Natural Science Foundation of China(21776295) the Youth Innovation Promotion Association,CAS(2017355)~~ 

主　　题：Hydroisomerization Zeolite SAPO-11 Melting-assist Bifunctional catalyst 

摘      要：A novel melting-assisted solvent-free route using solid oxalic acid was proposed for the post-treatment of SAPO-11 zeolite,followed by loading with 0.5 wt%Pt by the incipient wetness impregnation ***,the performance of the obtained bifunctional catalysts toward the hydroisomerization of n-dodecane was *** prepared samples were characterized by XRD,SEM,BET,XRF,Py-IR,and solid-state *** the results,it was found that the high crystallinity and uniform morphology were retained after the post-treatment and that more(002)crystal faces were exposed,which was beneficial since more acid sites were *** importantly,the total Bronsted acid sites and the ratio(Ra)of the micropore area to the total surface area were optimized by this ***,the catalytic performance was enhanced significantly,and the prepared Pt-SAPO-11-10%catalyst had the highest i-dodecane yield of 80.1%compared to 55.3%of ***,this facile and cost-effective method is promising for the hydroisomerization of normal paraffin in the production of lubricant base oils.