High-temperature synthesis of SAPO-34 molecular sieve using a dry gel method--颗粒学报PARTICUOLOGY

Rezaei, Y., Halladj, R., Askari, S., Tarjomannejad, A., & Rezaei, T. (2016). High-temperature synthesis of SAPO-34 molecular sieve using a dry gel method. Particuology, 27, 61-65. https://doi.org/10.1016/j.partic.2016.02.001

High-temperature synthesis of SAPO-34 molecular sieve using a dry gel method

Yazdan Rezaei ^a, Rouein Halladj ^a *, Sima Askari ^b, Ali Tarjomannejad ^c, Tofan Rezaei ^d

a Department of Chemical Engineering, Amirkabir University of Technology (Tehran Polytechnic), P.O. Box 15875-4413, Tehran, Iran
b Department of Chemical Engineering, Science and Research Branch, Islamic Azad University, P.O. Box 14515.775, Tehran, Iran
c Department of Chemical Engineering & Petroleum, University of Tabriz, P.O. Box 51664-16471, Tabriz, Iran
d Chemistry Department, Islamic Azad University, Ilam Branch, P.O. Box 69319-86447, Ilam, Iran

10.1016/j.partic.2016.02.001

Volume 27, August 2016, Pages 61-65

Received 10 November 2015, Revised 30 January 2016, Accepted 4 February 2016, Available online 26 April 2016, Version of Record 14 June 2016.

E-mail: halladj@aut.ac.ir

Highlights

• SAPO-34 was synthesized via a dry gel method at high temperatures using morpholin as template.

• The synthesized samples were identified to be SAPO-34 with high purity and crystallinity.

• High temperature method reduced synthesis time to below 1 h.

Abstract

SAPO-34 is one of the main catalysts used in the petrochemical industry. Various effective methods have been developed to synthesize SAPO-34 with optimal size and characteristics for such application. In the present study, SAPO-34 was synthesized using a dry gel method at high temperatures. Morpholine was used as an organic template. The products were characterized by X-ray diffraction, field-emission scanning electron microscopy, energy-dispersive X-ray spectroscopy, and gas sorption analysis. The results showed that application of the dry gel method at high temperatures successfully afforded a pure catalyst with high crystallinity. Small particles of less than 500 nm could be obtained within a short reaction time of 30 min.

Graphical abstract

Keywords

SAPO-34; Rapid; High temperature; Dry gel method; Synthesis

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