The Structural Elements of Faujasite and their Impact on Cracking Selectivity

  • A. W. Peters
  • W. C. Cheng
  • M. Shatlock
  • R. F. Wormsbecher
  • E. T. HabibJr.
Part of the NATO ASI Series book series (NSSB, volume 221)


The location of alumina in the dealuminated faujasite framework is described. The selectivities of dealuminated and rare earth exchanged faujasite, including selectivities for octane, coke, hydrogen transfer, and isomerization, are shown to depend on the relative amounts of paired and isolated sites present. Pentacoordinated and octahedral nonframework alumina do not contribute to selectivities in cracking. Selectivity and activity is controlled by the framework aluminum sites.


Hydrogen Transfer Aluminum Atom Paired Site Unit Cell Size Site Isolation 
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Copyright information

© Plenum Press, New York 1990

Authors and Affiliations

  • A. W. Peters
    • 1
  • W. C. Cheng
    • 1
  • M. Shatlock
    • 1
  • R. F. Wormsbecher
    • 1
  • E. T. HabibJr.
    • 1
  1. 1.W. R. GraceColumbiaUSA

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