Effects of silica to alumina ratio in superfine HZSM-5 zeolite on the catalytic reaction of methanol to propene

被引：0
|
作者：
Guo Q. [1 ]
Mao D. [1 ]
Meng T. [1 ]
机构：
[1] School of Chemical and Environmental Engineering, Shanghai Institute of Technology
来源：
Shiyou Xuebao, Shiyou Jiagong/Acta Petrolei Sinica (Petroleum Processing Section) | 2010年 / 26卷 / 06期
关键词：
Methanol; Propene; Ratio of silica to alumina; Superfine HZSM-5 zeolite;
D O I：
10.3969/j.issn.1001-8719.2010.06.018
中图分类号：
学科分类号：
摘要：
The structural and acidic properties of superfine HZSM-5 zeolites with different n(SiO2)/n(Al2O3) were determined by XRD, adsorption and desorption of N2, NH3-TPD and pyridine-adsorbed infrared spectroscopy (Py-IR), and their catalytic performances for the conversion of methanol to propene(MTP) were evaluated in a fixed-bed micro-reactor under continuous flow conditions. The results showed that the intensity and amount of acidic sites in superfine HZSM-5 decreased and the catalytic stability of the superfine HZSM-5 was improved continuously with the increase of n(SiO2)/n(Al2O3). Besides, selectivity to propene and butene of MTP firstly increased, reached a maximum and then decreased, and on the contrary, selectivity to methane, ethene and aromatics firstly decreased, reached a minimum and then increased.
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页码：940 / 945
页数：5
相关论文
共 22 条
  • [1] Liu B., Lu S., Wang S., Et al., Advances in methanol catalytic conversion to olefins on MFI zeolites, Chem Ind Eng Progr, 26, 1, pp. 29-32, (2007)
  • [2] Mao D., Guo Q., Lu G., Advances in catalytic conversion of methanol to propylene, Petrochem Technol, 37, 12, pp. 1328-1333, (2008)
  • [3] Patcas F.C., The methanol-to-olefins conversion over zeolite-coated ceramic foams, J Catal, 231, 1, pp. 194-200, (2005)
  • [4] Guo Q., Xie C., Study on the conversion of methanol to light olefins over ZRP zeolite catalyst, Petroleum Process Petrochem, 36, 9, pp. 26-30, (2005)
  • [5] Wen P., Mei C., Liu H., Et al., Deactivation of ZSM-5 catalysts during methanol-to-propylene process, Acta Petrolei Sinica (Petroleum Processing Section), 24, 4, pp. 446-450, (2008)
  • [6] Wen P., Mei C., Liu H., Et al., Effect of Si/Al ratio in ZSM-5 on the selectivity of products for methanol conversion to propylene, Chem React Eng Tech, 23, 5, pp. 385-390, (2007)
  • [7] Mei C., Wen P., Liu Z., Et al., Selective production of propylene from methanol: Mesoporosity development in high silica HZSM-5, J Catal, 258, 1, pp. 243-249, (2008)
  • [8] Liu J., Zhang C., Shen Z., Et al., Methanol to propylene: Effect of phosphorus on a high silica HZSM-5 catalyst, Catal Commun, 10, 11, pp. 1506-1509, (2009)
  • [9] Liang J., Zhao S., Li H., Et al., Studies on conversion of methanol to light alkenes over zeolite catalyst, Petrochemical Technology, 12, 9, pp. 531-538, (1983)
  • [10] Li B., Liang J., Sun J., Et al., Synthesis of lower olefins from methanol over modified ZSM-5 zeolite, Chin J Catal, 4, 3, pp. 248-251, (1983)
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