Advertisement

Petroleum Chemistry

, Volume 57, Issue 12, pp 1182–1185 | Cite as

On the Choice of Ion Exchange Method for FAU Type Zeolite to Synthesize an Active and Selective Catalyst for Isobutane Alkylation with Butylenes

  • I. M. Gerzeliev
  • V. A. Ostroumova
  • M. N. Baskhanova
  • Z. A. Saitov
  • V. A. Temnikova
  • D. O. Khusaimova
Article
  • 15 Downloads

Abstract

A comparative study of the trends in ion exchange of NaX zeolite (molar ratio Si/Al = 1.34) pelletized without binder has been performed using successive treatment with calcium, lanthanum, and ammonium nitrate solutions at 80°C with intermediate calcination after each ion exchange stage or by ion exchange in an autoclave at 180°C with calcium nitrate and lanthanum and ammonium nitrate solutions without intermediate calcinations. It has been found that for the complete replacement of sodium cations in the zeolite framework (less than 1 wt % residual sodium oxide), a fourfold ion exchange at 80°C with vigorous stirring and intermediate calcinations or a twofold ion exchange at 180°C in an autoclave without intermediate calcinations is required. Comparison of the physicochemical and catalytic properties of the obtained catalyst samples with almost identical chemical composition has shown a significant advantage of ion exchange in the autoclave, since the zeolite retains its initial structural characteristics.

Keywords

ion exchange NaX zeolite autoclave alkylation isobutane butylene porous structure acidity X-ray diffraction phase analysis 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    S. N. Khadzhiev and I. M. Gerzeliev, O. S. Vedernikov et al., Catal. Ind. 9, 198 (2017).CrossRefGoogle Scholar
  2. 2.
    I. M. Gerzeliev, M. V. Tsodikov, and S. N. Khadzhiev, Pet. Chem. 49, 1 (2009). http://elibrary.ru/contents. asp?issueid=1521572&selid=24968877.CrossRefGoogle Scholar
  3. 3.
    J. A. Rabo, Zeolite Chemistry and Catalysis (American Chemical Society, Washington, 1976).Google Scholar
  4. 4.
    Ya. I. Isakov, A. L. Klyako-Gurvich, and A. G. Khudiev, in Proceedings of IV International Congress on Catalysis (Moscow, 1968) [in Russian].Google Scholar
  5. 5.
    S. P. Zhdanov, Izv. Akad. Nauk SSSR, Ser. Khim., No. 3, 236 (1969).Google Scholar

Copyright information

© Pleiades Publishing, Ltd. 2017

Authors and Affiliations

  • I. M. Gerzeliev
    • 1
  • V. A. Ostroumova
    • 1
  • M. N. Baskhanova
    • 1
  • Z. A. Saitov
    • 1
  • V. A. Temnikova
    • 1
  • D. O. Khusaimova
    • 1
  1. 1.Topchiev Institute of Petrochemical SynthesisRussian Academy of SciencesMoscowRussia

Personalised recommendations