Role of Lewis Acidity in the Deactivation of USY Zeolites during 2-Methylpentane Cracking

Scott M. Babitz, Mark A. Kuehne, Harold H Kung, Jeffrey T. Miller

Research output: Contribution to journalArticle

28 Citations (Scopus)

Abstract

The role of strong Lewis acid sites in the deactivation of H-USY zeolite during 2-methylpentane cracking was investigated. NH3 adsorption microcalorimetry and FTIR of adsorbed NH3 were used to characterize the acid sites of an H-USY zeolite and another USY sample in which the strong Lewis acid sites were poisoned with ammonia. It was found that poisoning of the Lewis acid sites did not affect the rate of deactivation, the cracking activity, and the distribution of the cracked products. Thus, strong Lewis acid sites are not important in the cracking reaction.

Original languageEnglish
Pages (from-to)3027-3031
Number of pages5
JournalIndustrial and Engineering Chemistry Research
Volume36
Issue number8
Publication statusPublished - Aug 1997

Fingerprint

Zeolites
Lewis Acids
Acidity
acidity
Acids
acid
zeolite
Ammonia
poisoning
Adsorption
ammonia
2-methylpentane
adsorption

ASJC Scopus subject areas

  • Chemical Engineering (miscellaneous)
  • Environmental Science(all)
  • Polymers and Plastics

Cite this

Role of Lewis Acidity in the Deactivation of USY Zeolites during 2-Methylpentane Cracking. / Babitz, Scott M.; Kuehne, Mark A.; Kung, Harold H; Miller, Jeffrey T.

In: Industrial and Engineering Chemistry Research, Vol. 36, No. 8, 08.1997, p. 3027-3031.

Research output: Contribution to journalArticle

Babitz, Scott M. ; Kuehne, Mark A. ; Kung, Harold H ; Miller, Jeffrey T. / Role of Lewis Acidity in the Deactivation of USY Zeolites during 2-Methylpentane Cracking. In: Industrial and Engineering Chemistry Research. 1997 ; Vol. 36, No. 8. pp. 3027-3031.
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