ZSM-5/MCM-41复合分子筛的合成与表征

被引：5

作者：

张君涛 ^{[1
]}

郝娜娜 ^{[2
]}

王妮 ^{[3
]}

机构：

[1] 西安石油大学石油炼化工程技术研究中心

[2] 上海新佑能源科技有限公司

[3] 汉中市天然气投资发展有限公司

来源：

燃料化学学报 | 2013年 / 41卷 / 10期

关键词：

微孔-介孔复合分子筛; ZSM-5; MCM-41; 水热合成;

D O I：

暂无

中图分类号：

O643.36 [催化剂];

学科分类号：

摘要：

以碱处理的ZSM-5浆液为硅铝源,通过水热自组装过程合成了介孔-微孔复合孔道结构的分子筛,并采用XRD、BET、HRTEM、Py-IR和水热处理等手段对合成分子筛进行了表征。结果表明,碱处理ZSM-5时的苛刻程度是影响复合分子筛合成的重要因素,适宜的碱处理条件为NaOH浓度1 mol/L、80℃时处理1 h。表征结果表明,复合分子筛具有规整互通的微孔-介孔梯级复合孔道结构,孔容、比表面积和平均孔径分别为0.63 mL/g,684 m2/g和3.76 nm,属典型的MCM-41结构;与MCM-41相比,复合分子筛的B酸(尤其是强B酸)酸量明显增强,水热稳定性显著提高。

引用

页码：1268 / 1273

页数：6

共 19 条

[1] 分子筛与多孔材料化学.[M].徐如人等著;.科学出版社.2004,
[2] Micro-mesoporous composite molecular sieves H-ZSM-5/MCM-41 for methanol dehydration to dimethyl ether: Effect of SiO 2 /Al 2 O 3 ratio in H-ZSM-5.[J].Hansheng Li;Shichao He;Ke Ma;Qin Wu;Qingze Jiao;Kening Sun.Applied Catalysis A; General.2012,
[3] Utilization of ZSM-5/MCM-41 composite as FCC catalyst additive for enhancing propylene yield from VGO cracking
Jermy, B. R.
Siddiqui, M. A. B.
Aitani, A. M.
Saeed, M. R.
Al-Khattaf, S.
[J]. JOURNAL OF POROUS MATERIALS, 2012, 19 (04) : 499 - 509
[4] Catalytic dehydration of methanol to dimethyl ether over micro–mesoporous ZSM-5/MCM-41 composite molecular sieves.[J].Qiang Tang;Hang Xu;Yanyan Zheng;Jinfu Wang;Hansheng Li;Jun Zhang.Applied Catalysis A; General.2011,
[5] Formation of a combined micro- and mesoporous material using zeolite Beta nanoparticles.[J].C.J. Van Oers;W.J.J. Stevens;E. Bruijn;M. Mertens;O.I. Lebedev;G. Van Tendeloo;V. Meynen;P. Cool.Microporous and Mesoporous Materials.2008, 1
[6] Experimental and molecular simulation studies of a ZSM-5-MCM-41 micro-mesoporous molecular sieve.[J].Chen Huiyong;Xi Hongxia;Cai Xianying;Qian Yu.Microporous and Mesoporous Materials.2008, 1
[7] Hydrothermally stable mesoporous aluminosilicates (MSU-S) assembled from zeolite seeds as catalysts for biomass pyrolysis.[J].Kostas S. Triantafyllidis;Eleni F. Iliopoulou;Eleni V. Antonakou;Angelos A. Lappas;Hui Wang;Thomas J. Pinnavaia.Microporous and Mesoporous Materials.2006, 1
[8] Gas–oil cracking activity of hydrothermally stable aluminosilicate mesostructures (MSU-S) assembled from zeolite seeds: Effect of the type of framework structure and porosity.[J].K.S. Triantafyllidis;A.A. Lappas;I.A. Vasalos;Y. Liu;H. Wang;T.J. Pinnavaia.Catalysis Today.2005, 1
[9] S+ X-I+ route to mesostructured materials from Fau and Beta zeolite precursors:: A comparative study of their assembly behaviors in extremely acidic media
Zheng, JL
Zhai, SR
Wu, D
Sun, YH
[J]. JOURNAL OF SOLID STATE CHEMISTRY, 2005, 178 (05) : 1630 - 1636
[10] Immobilization of cytochrome P-450 on MCM-41 with different silicon/aluminum ratios.[J]..Microporous and Mesoporous Materials.2004, 1

← 1 2 →