Desorption of thiophene on modified Y zeolites

被引：0
|
作者：
Liu D. [1 ,2 ]
Song L. [1 ,2 ]
Sun Z. [1 ,2 ]
机构：
[1] College of Chemistry and Chemical Engineering, China University of Petroleum
[2] Key Laboratory of Petrochemical Engineering, Liaoning University of Petroleum and Chemical Engineering
来源：
Shiyou Xuebao, Shiyou Jiagong/Acta Petrolei Sinica (Petroleum Processing Section) | 2010年 / 26卷 / SUPPL. 1期
关键词：
Distributed activation energy model(DAEM); Temperature-programmed desorption(TPD); Thiophene;
D O I：
10.3969/j.issn.1001-8719.2010.z1.022
中图分类号：
学科分类号：
摘要：
FT-IR and TPD of thiophene on NaY/NiY/CeY were carried out in order to investigate the desorption of thiophene from modified zeolites. Based on non-isothermal TPD curves and TPD spectra, the desorption activation energy of thiophene from modified zeolites were calculated with distributed activation energy model. The result of experiments indicates that the surface of NaY after adsorption of thiophene is homogeneous due to physical adsorption and the little desorption activation energy of thiophene. And the surface of NiY/CeY after adsorption of thiophene are heterogeneous, Because both physical and chemical adsorption are involved with more desorption activation energy. Catalytic reaction highlights the desorption of thiophene from CeY but S-M interaction is responsible for the thiophene desorption from NiY.
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页码：116 / 119
页数：3
相关论文
共 3 条
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  • [2] Liu D., Song L., Sun Z., Et al., Adsorption and desorption of thiophene vapour on NiY, Journal of Petrochemical Universities, 23, 2, pp. 21-24, (2010)
  • [3] Liu D., Song L., Sun Z., Et al., Activation energy of temperature programmed desorption calculated with least-squares method for benzene, thiophene and octane on NaY, Acta Physico-Chimica Sinica, 25, 3, pp. 470-476, (2009)
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