High effective dehydration of bio-ethanol into ethylene over nanoscale HZSM-5 zeolite catalysts
发表时间：2019-03-11
点击次数：
- 论文类型：
- 期刊论文
- 第一作者：
- Bi, Jiandong
- 通讯作者：
- Guo, XW (reprint author), Dalian Univ Technol, Sch Chem Engn, Dept Catalysis Chem & Engn, State Key Lab Fine Chem, POB 39,158 Zhongshan Rd, Dalian 116012, Liaoning, Peoples R China.
- 合写作者：
- Guo, Xinwen,Liu, Min,Wang, Xiangsheng
- 发表时间：
- 2010-01-15
- 发表刊物：
- International Symposium on Catalysis
- 收录刊物：
- SCIE、CPCI-S
- 文献类型：
- J
- 卷号：
- 149
- 期号：
- 1-2
- 页面范围：
- 143-147
- ISSN号：
- 0920-5861
- 关键字：
- Dehydration; Bio-ethanol; Ethylene; Nanoscale HZSM-5; Stability
- 摘要：
- Nanoscale and microscale HZSM-5 zeolite catalysts were prepared and characterized by using SEM, XRD, IR, TPD and modified Hammett indicator method. Their performances in the dehydration of bio-ethanol into ethylene were compared in a fixed-bed reactor at 240 degrees C under atmospheric pressure. The results show that nanoscale HZSM-5 zeolite catalyst exhibits better stability than microscale HZSM-5 zeolite catalyst When the 95(v) % bio-ethanol is used as the reactant, over nanoscale HZSM-5 catalyst, the conversion of bio-ethanol and the selectivity for ethylene almost keep constant during 630 h reaction, while over microscale HZSM-5 zeolite catalyst, the conversion of bio-ethanol decreases after 60 h reaction, in the case of the 45(v) % bio-ethanol employed as the feedstock, over nanoscale HZSM-5 catalyst, the conversion of bio-ethanol and the selectivity for ethylene almost keep constant during 320 h reaction, while over microscale HZSM-5 zeolite catalyst, both the conversion of bio-ethanol and the selectivity for ethylene decrease almost at the beginning of the reaction. (C) 2009 Elsevier B V All rights reserved.
- 是否译文：
- 否
