Synthesis and Characterization of Y/MCM41 Composite Molecular Sieve

doi:10.3969/j.issn.1006-396X.2015.06.004

Journal of Petrochemical Universities ›› 2015, Vol. 28 ›› Issue (6): 20-24.DOI: 10.3969/j.issn.1006-396X.2015.06.004

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Synthesis and Characterization of Y/MCM41 Composite Molecular Sieve

(1.College of Chemistry, Chemical Engineering and Environmental Engineering, Liaoning Shihua University,Fushun Liaoning 113001,China;  2. Fushun Petrochemical Branch Company No.2 Petroleum Factory，Fushun Liaoning 113000,China)

Received:2015-06-06 Revised:2015-09-18 Published:2015-12-25 Online:2015-12-07

Y /MCM - 4 1复合分子筛的合成及表征

田莎¹, 李会鹏¹, 赵华¹, 齐相前¹, 韩聪¹, 董海进¹, 宋国²

( 1. 辽宁石油化工大学化学化工与环境学部,辽宁抚顺1 1 3 0 0 1; 2. 抚顺石化公司石油二厂, 辽宁抚顺1 1 3 0 0 0)

通讯作者: 李会鹏( 1 9 7 3 - ) , 男, 博士, 教授, 从事清洁燃料生产和催化剂研发;E - m a i l : f s l h p@s i n a. c o m。
作者简介:田莎( 1 9 9 3 - ) , 女, 化学工程与工艺专业学生, 从事催化剂的研制与开发及清洁燃料生产; E - m a i l : 1 8 2 4 1 3 0 0 8 2 6@1 6 3.c o m 。
基金资助:
大学生创新训练计划项目国家级甲等( 2 0 1 4 1 0 1 4 8 0 0 8) ; 辽宁省自然科学基金项目( 2 0 1 4 0 2 0 1 0 9) 。

Abstract

Abstract: The Y/MCM41 composite molecular sieve was prepared by postsynthesis method and its performance was characterized by XRD, BET, N2 adsorptiondesorption and so on. In addition, its hydrothermal stability was studied. The results showed that the optimized synthesis conditions are as follows: pH 11,CTAB and SiO2 molar ratio of 0.15,crystallization time 48 h,and the composite molecular sieve had the properties of both mesoporous MCM41 and microporous Y. The acidity and hydrothermal stability of composite molecular sieve were better than that of pure mesoporous MCM41.

Key words: Y/MCM41composite molecular sieve, , Synthesis, , Characterization, , Acidity, , Hydrothermal stability

摘要： 采用后合成法制备了 Y /MCM - 4 1复合分子筛, 对其进行 XR D、 S EM、 T EM、 N2 吸附 - 脱附等表征, 并对复合分子筛的水热稳定性进行了考察。结果表明, 最适宜的制备条件为p H=1 1, n( C TA B) / n( S i O2) =0. 1 5, 晶化时间为4 8h。Y /MCM - 4 1复合分子筛同时具有介孔分子筛 MCM - 4 1和微孔Y型沸石的特征, 与纯 MCM - 4 1分子筛相比, 复合分子筛具有较强的的酸性及较高的水热稳定性。

关键词: 复合分子筛 Y /MCM - 4 1, , 合成, 表征, 酸度, , 水热稳定性

Tian Sha,Li Huipeng,Zhao Hua,et al. Synthesis and Characterization of Y/MCM41 Composite Molecular Sieve[J]. Journal of Petrochemical Universities, 2015, 28(6): 20-24.

田莎, 李会鹏, 赵华. Y /MCM - 4 1复合分子筛的合成及表征[J]. 石油化工高等学校学报, 2015, 28(6): 20-24.

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Synthesis and Characterization of Y/MCM41 Composite Molecular Sieve

Y /MCM - 4 1复合分子筛的合成及表征

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