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第 35 卷第 9 期 精 细 化 工 Vol.35, No.9
201 8 年 9 月 FINE CHEMICALS Sept. 2018

催化与分离提纯技术
微孔-双介孔核壳型 HZSM-5@BMMs

催化甲醇芳构化

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王 璐 ，许立兴 ，李 剑 ，任浩楠 ，楚 爽 ，王丽娟 ，杨丽娜
（1. 辽宁石油化工大学 石油化工学院，辽宁 抚顺 113001；2. 抚顺石化公司催化剂厂，辽宁 抚顺
113001）
摘要：采用外延法，以 HZSM-5 为核，双介孔分子筛 BMMs 为壳制备了多级孔核壳型 HZSM-5@BMMs 甲醇芳
构化（MTA）催化剂。采用 XRD、BET、NH 3 -TPD、SEM 和 TEM 对催化剂进行了表征。结果表明：HZSM-5@BMMs
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具有明显的核壳结构和微孔-双介孔多级孔孔道，孔径集中分布于 0.9、2.2 和 5.3 nm，其比表面积（510.8 m /g）
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和孔容（0.399 cm /g）均高于 HZSM-5 的比表面积（408.4 m /g）和孔容（0.190 cm /g），而酸量（0.573 mmol/g）
和酸强度均低于 HZSM-5 的酸量（0.883 mmol/g）和酸强度。相同反应条件下 HZSM-5@BMMs 寿命比 HZSM-5
增加 38 h，最高芳烃收率为 25.7%，最高 BTX（轻质芳烃：苯、甲苯、二甲苯）选择性为 55.3%。
关键词：HZSM-5；BMMs；多级孔；核壳；甲醇芳构化；催化技术
中图分类号：TQ246 文献标识码：A 文章编号：1003-5214 (2018) 09-1562-06

Studies on Micro-bimodal Mesoporous Core-shell HZSM-5@BMMs
Catalyst for Methanol to Aromatics

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WANG Lu , XU Li-xing , LI Jian , REN Hao-nan , CHU Shuang ,
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WANG Li-juan , YANG Li-na
（1. College of Petrochemical Engineering, Liaoning Shihua University, Fushun 113001, Liaoning, China; 2. Fushun
Petrochemical Corporation Catalyst Plant, Fushun 113001, Liaoning, China）
Abstract: A hierarchical porous HZSM-5@BMMs catalyst for methanol to aromatics (MTA) was
synthesized by epitaxial growth method using bimodal mesoporous BMMs as shell and HZSM-5 zeolite as
core. The obtained catalyst was characterized by XRD, BET, NH 3-TPD, SEM and TEM. The results
indicated that HZSM-5@BMMs had an obvious core-shell structure with micro-bimodal mesoporous
structure and the pore size mainly concentrated in 0.9, 2.2 and 5.3 nm. The specific surface area and pore
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volume of HZSM-5@BMMs were 510.8 m /g and 0.399 cm /g, respectively, higher than those of HZSM-5
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(408.4 m /g, 0.190 cm /g). However, the acid amount of HZSM-5@BMMs was 0.573 mmol/g, which was
lower than that of HZSM-5 (0.883 mmol/g). In addition, the acid intensity of HZSM-5@BMMs was lower
than that of HZSM-5. It was shown that the longevity of HZSM-5@BMMs in MTA under the same
condition was 38 h longer than that of HZSM-5, and the highest yield of aromatics and the selectivity of
BTX (light aromatics: benzene, toluene, xylene) on HZSM-5@BMMs were 25.7% and 55.3%, respectively.
Key words: HZSM-5; BMMs; hierarchical porous; core-shell; methanol to aromatics; catalysis technology
Foundation items: Program for Liaoning Excellent Talents in University (LJQ2015062); Program of
Science and Technology Agency of Liaoning Province (20170540585); General Scientific Research Project
of Liaoning Provincial Department of Education (L2015296 and L2016018); Fushun Municipal Science and
Technology Planning Project (FSKJHT201376)

收稿日期：2017-10-27; 定用日期：2018-02-07; DOI: 10.13550/j.jxhg.20170872
基金项目：辽宁省高等学校杰出青年学者成长计划（LJQ2015062）；辽宁省科学技术厅项目（20170540585）；辽宁省教育厅项目
（L2015296，L2016018）；抚顺市科技计划项目（FSKJHT201376）
作者简介：王 璐（1992—），女，硕士生。联系人：杨丽娜（1976—），女，教授，电话：13898311307，E-mail：yanglnzg@163.com。