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Effects of SiO2/Al2O3 Ratio on Physicochemical Properties and Catalytic Performance of the Non-Templated ZSM-5 Zeolite

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Abstract:

The ZSM-5 zeolites of various SiO2/Al2O3 ratios were synthesized without using any template agent. X-ray diffraction (XRD), transmission electron microscope (TEM), temperature- programmed desorption of ammonia (NH3-TPD) and Fourier transform infrared spectroscopy (FT-IR) techniques were employed to analyze the natures of the as-synthesized zeolite. The results show that the as-synthesized non-templated ZSM-5 zeolite is very pure. Meanwhile, Lewis acid sites and Bronsted acid sites are all presented in the as-synthesized non-templated HZSM-5 zeolite. The number of acid sites decreases almost linearly with the increasing of SiO2/Al2O3 ratio of the zeolite. In addition, the reaction of propylene oligomerization was carried out over the as-synthesized non-templated HZSM-5 zeolite to evaluate the catalytic properties. The results show that the catalytic activity of propylene oligomerization decreases with the increasing of SiO2/Al2O3 ratio.

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Periodical:

Advanced Materials Research (Volumes 197-198)

Pages:

992-995

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.197-198.992

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Online since:

February 2011

Authors:

Wei Qiao Liu, Wei Ning Lei, Tong Ming Shang, Zhi Gang Mou, Heng Qiang Wang, Jie Ren, Gong Li

Keywords:

Non-Templated ZSM-5, Physicochemical Property, Propylene Oligomerization

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© 2011 Trans Tech Publications Ltd. All Rights Reserved

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References

[1] O. N. Karatun, A. Z. Dorogochinskii: Chem. Technol. Fuel Oil. Vol. 36(6)(2000), p.416.

Google Scholar

[2] V. S. Nayak, J. B. Moffat: Appl. Catal. A: General. Vol. 60 (1) ( 1990 ), p.87.

Google Scholar

[3] E.W. Valyocsik, L. D. Rollmannn: Zeolites. Vol. 5 ( 1985 ), p.123.

Google Scholar

[4] I. P. Dzikh: Appl Catal: A. Vol. 177(1999), p.245.

Google Scholar

[5] T. A. J. Hardenberg, L. Mertens, P. Mesman, H. C. Muller, C. P. Nicolaides: Zeolites. Vol. 12 ( 1992 ), p.685.

Google Scholar

[6] C. V. Higdalgo, H. Itoh, T. Niwa: J. Catal. Vol. 85 ( 1984 ), p.362.

Google Scholar

[7] A. Auroux, V. Bolis, P. Wierzchowski, C. P. Gravelle, J. C. Vedrine: J. Chem. Soc., Fareday Trans. Vol. 157 (1972), p.2544.

Google Scholar

[8] A. K. Ghosh, R.A. Kydd: J. Catal. Vol. 100(1) ( 1986 ), p.185.

Google Scholar

[9] A. V. kucherov, A. A. Slinkin, M. S. Kharson, T. N. Bondarenko, K. M. Minachev: J. Mol. Catal. Vol. 53 (1989 ), p.293.

Google Scholar

[10] M. W. Wu, W. K. Kaeding: J. Catal. Vol. 88 ( 1984 ), p.480.

Google Scholar

[11] D. H. Olson, W. O. haag, R. M. Lago: J. Catal. Vol. 61 ( 1980 ), p.393.

Google Scholar

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