燃料化学学报（中英文）2026，Vol.54Issue(9)：54-63,10.DOI:10.1016/S1872-5813(26)60691-3
ZSM-22-ZSM-23复合分子筛催化剂调节正十二烷临氢异构化产物分布
The ZSM-22-ZSM-23 composite molecular sieve catalyst regulates the product distribution of the hydroisomerization of n-dodecane
摘要
Abstract
In this study,ZSM-22-ZSM-23 composite zeolite was synthesized via a mechanical mixing method.The morphology,acidic properties,and textural properties of the samples were characterized by XRD,SEM,TEM,NH3-TPD,Py-FTIR,and N2 adsorption-desorption techniques.The hydroisomerization catalytic performance of the composite zeolite was evaluated using n-dodecane as a model reactant,and compared against the individual zeolite components.It was found that the textural and acidic properties could be precisely modulated by varying the ZSM-22 to ZSM-23 mass ratio.At an optimal mass ratio of 4∶1,the selectivity for iso-dodecane increased by 24％relative to ZSM-23,while the ratio of terminal-branching to intermediate-branching product selectivity(st/si)decreased by 14％compared to ZSM-22.The results demonstrate that the composite zeolite combines the advantages of both individual zeolite in terms of texture and acidity,exhibits superior hydroisomerization performance,and can effectively regulate the distribution of terminal-branching and intermediate-branching isomers in iso-dodecane.关键词
ZSM-22/ZSM-23/复合分子筛/临氢异构化/正十二烷Key words
ZSM-22/ZSM-23/composite molecular sieves/hydrogenation isomerization/n-dodecane分类
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鲁海莹,侯建乐,李瑞丰,郭雨萌,金文瑞,段雨杰,向江南,张巍,王琰,盖立敏,王小伟..ZSM-22-ZSM-23复合分子筛催化剂调节正十二烷临氢异构化产物分布[J].燃料化学学报（中英文）,2026,54(9):54-63,10.基金项目
Supported by the Basic Research Plan of Shanxi Province-Natural Science Research Surface Project(202203021221055),National Natural Science Foundation of China(22378286),the Central Government Guides Local Science and Technology Development Funds(YDZJSX2021A014),the National Natural Science Foundation of China Youth Science Fund Project(22302143),Shanxi Natural Science Foundation Youth Scientific Research Project(202303021212067),Construction Plan for the Lüliang City Technology Innovation Center(2025CXZX04). （202203021221055）
