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Development of structure stabilized SSY zeolite

  • J. Du*
  • , Z. Li
  • , Y. Wang
  • , Z. Da
  • , J. Long
  • , M. He
  • *Corresponding author for this work
  • SINOPEC

Research output: Contribution to journalArticlepeer-review

Abstract

Structure stabilized Y (SSY) zeolite with high rare earth content was prepared by following the RE3+-exchange of NaY with a SiCl 4 treatment. Due to RE3+ cation location in the zeolite lattice, migrating direction and presence state could be well controlled in processing, the SSY possesses the following characteristics: initial unit cell constant a0= 2.450-2.458nm, equilibrium unit cell size >2.435nm, RE2O3 content could be adjusted within 6-14wt%, sodium oxide content less than 1.70 wt%, and a differential thermal collapsed temperature, DTA >1000°C. Research results indicate that the SSY with an improved heavy oil conversion, a better coke selectivity and a higher hydrogen transfer activity and stability is suitable as an active component of cracking catalyst for clean gasoline production.

Original languageEnglish
Pages (from-to)2309-2315
Number of pages7
JournalStudies in Surface Science and Catalysis
Volume154 C
DOIs
StatePublished - 2004
Externally publishedYes

Keywords

  • Cracking catalyst
  • Hydrogen transfer activity
  • Silicon tetrachloride
  • Structure stabilized Y zeolite

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