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Hydrothermal synthesis of beta zeolite from industrial silica sol as silicon source

  • Zhen Liu
  • Liang Zhao
  • Tingting Zhang
  • Yu Wang
  • Yanyan Xu
  • Sridhar Komarneni
  • Yi Wang
  • Xinmei Liu
  • Zifeng Yan
Article
  • 20 Downloads

Abstract

The traditional silicon sources for beta zeolite synthesis are solid silica gel, carbon-white or tetraethyl orthosilicate (TEOS), which makes the material cost even higher. Herein, beta zeolite synthesis by hydrothermal method with industrial silica sol as silicon source was investigated. The effects of synthesis conditions on product property were investigated in detail, including template content, crystallization temperature, crystallization time and alkalinity of hydrothermal system. The products properties, such as crystallinity, pore structure, morphology and acid properties were thoroughly characterized by XRD, N2 adsorption–desorption isotherm, SEM, TEM, Py-FTIR and NH3-TPD. The optimum condition for synthesis of beta zeolite using industrial silica sol as silicon source was finally determined. Compared with commercial beta zeolite, the as-synthesized beta zeolite had higher relative crystallinity, higher total and microporous specific surface area with higher total concentration and B/L ratio of acid sites.

Keywords

Beta zeolite Template Silica sol Hydrothermal synthesis 

Notes

Acknowledgements

This work was financially supported by the Fundamental Research Funds for the Central Universities (18CX02116A) and Natural Science Foundation of Shandong Province (ZR2017QB007).

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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2018

Authors and Affiliations

  1. 1.College of Chemical Engineering, State Key Laboratory of Heavy Oil Processing, Key Laboratory of Catalysis, CNPCChina University of PetroleumQingdaoPeople’s Republic of China
  2. 2.Materials Research InstituteThe Pennsylvania State UniversityUniversity ParkUSA
  3. 3.Lanzhou Petrochemical Research Center, Petrochemical Research InstitutePetroChina Company LimitedLanzhouPeople’s Republic of China

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