A study of coke formed by heavy oil volatilization/decomposition on Y-zeolite

Ye Shui Zhang, Rhodri E Owen, Paul R. Shearing, William C. Maskell, Dan J.L. Brett* (Corresponding Author), George Manos* (Corresponding Author)

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

13 Citations (Scopus)


Coke related catalyst deactivation is still attractive for many researchers as the complexity of carbon precursor. Y-zeolite is one of the most popular catalyst used in petrochemical industry, which is also progressively degrading by coking. In this piece of work, the effects of volatilization/decomposition temperature and sample-to-catalyst ratio on the coke formed from heavy oil volatilization/decomposition in the presence of Y-zeolite catalyst have been investigated. Temperature plays a significant role in determining the nature of the carbon formed, with higher temperatures favouring a higher graphitic-to-amorphous carbon ratio. Higher sample-to-catalyst ratios lead to higher amounts of coke, but does not affect the graphitic-to-amorphous carbon ratio as the same volatilization/decomposition temperature.

Original languageEnglish
Article number104630
Number of pages8
JournalJournal of Analytical and Applied Pyrolysis
Early online date4 Jun 2019
Publication statusPublished - Aug 2019

Bibliographical note

This work is financially supported by Qatar National Research Fund (QNRF) from National Priority Research Program (NPRP9-313-2-135).


  • Volatilization/decomposition
  • coking
  • heavy oil
  • Y-zeolite


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