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个人信息Personal Information
教授
博士生导师
硕士生导师
任职 : 大连理工大学成都研究院院长
性别：男
毕业院校：中科院大连化学物理研究所
学位：博士
所在单位：化工学院
学科：化学工艺. 物理化学. 功能材料化学与化工
办公地点：大连理工大学西部校区化工综合楼A401室
联系方式：辽宁省大连市高新区凌工路2号，邮编116024
电子邮箱：changhai@dlut.edu.cn
Synthesis of ZSM-23 zeolite with dual structure directing agents for hydroisomerization of n-hexadecane
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论文类型：期刊论文
发表时间：2018-09-15
发表刊物：MICROPOROUS AND MESOPOROUS MATERIALS
收录刊物：SCIE
卷号：268
页面范围：216-224
ISSN号：1387-1811
关键字：ZSM-23; Dual structure directing agents; Acidic site distribution; Hydroisomerization
摘要：Highly crystallized ZSM-23 zeolite samples were synthesized by employing the dual structure directing agents pyrrolidine (PY) and isopropylamine (IPA). The existence of two types of structure directing agents widened the synthesis composition ratio range and speeded up the crystallization. The samples obtained showed larger micropore surface areas and volumes compared with the products synthesized with single SDA. It was found that the use of the dual-structure directing agent had no effect on the total acidity but altered the acid site distribution where more weak and medium acidic sites were exposed and was found to be more suitable for n-hexadecane hydroisomerization. The bifunctional catalysts prepared from the supports using the dual-structure directing agent showed excellent catalytic performance under certain reaction conditions. It was noteworthy that Pt/PI-200 (Pt supported on the dual-structure directing agent with a SiO2 /Al2O3 ratio of 200) showed a constant selectivity to iso-hexadecane ca. 69% with contact time of 0.75 min and longer.
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