Lanthanum-phosphorous modified HZSM-5 catalysts in dehydration of ethanol to ethylene: A comparative analysis

被引：86
作者：
Zhan, Nina [1 ]
Hu, Yi [1 ]
Li, Heng [1 ]
Yu, Dinghua [1 ]
Han, Yuwang [1 ]
Huang, He [1 ]
机构：
[1] Nanjing Univ Technol, State Key Lab Mat Oriented Chem Engn, Coll Biotechnol & Pharmaceut Engn, Nanjing 210009, Peoples R China
来源：
CATALYSIS COMMUNICATIONS | 2010年 / 11卷 / 07期
关键词：
HZSM-5; Dehydration; Ethanol; Ethylene; Modification; Lanthanum; PERFORMANCE; CONVERSION; H-ZSM-5; ZSM-5;
D O I：
10.1016/j.catcom.2010.01.011
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The catalytic dehydration of ethanol into ethylene was studied over HZSM-5, phosphorous modified HZSM-5 and lanthanum-phosphorous modified HZSM-5 in the low temperature range from 473 K to 573 K. The experimental results demonstrated the lanthanum-phosphorous modified HZSM-5 offered the outstanding catalytic performance and the enhanced anti-coking ability markedly, especially for 0.5%La-2%PHZSM-5. Characterizations revealed that the improved catalytic performance and the excellent anti-coking ability of lanthanum-phosphorous modified HZSM-5 could be attributed to the harmonious acid sites and pore structure by the modification with lanthanum and phosphorous. (C) 2010 Elsevier B.V. All rights reserved.
引用
收藏
页码：633 / 637
页数：5
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