Determination of coke on promoted zirconium oxide catalysts in the isomerization re-action of pentane and hexane mixture at high pressure

Luu Cam Loc , Nguyen Dien Trung * and Nguyen Tri

* Corresponding author (ndtrung@ctu.edu.vn)

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Received: 28 Oct 2016
Revised: 23 Dec 2016
Accepted: 31 Oct 2017
Published: 29 Nov 2017
DOI: 10.22144/ctu.jen.2017.043
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Luu, C. L., Nguyen, D. T., & Nguyen, T. (2017). Determination of coke on promoted zirconium oxide catalysts in the isomerization re-action of pentane and hexane mixture at high pressure. CTU Journal of Innovation and Sustainable Development , (07), 13-18. https://doi.org/10.22144/ctu.jen.2017.043
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No. 07 (2017)

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Abstract

A series of bifunctional catalysts: sulfated zirconia, tungstated zirconia and alumina-supported zirconia as effective supports for Pt was been prepared. The structure and the surface property of denatured zirconium oxide catalysts were characterized by using physico-chemical methods such as XRD, BET, SEM, TEM and TPR. Their catalytic activity in isomerization reaction and stability of catalysts was tested by GC. The coke deposited on catalyst surface was determined by a burn-off method. The mass of coke formed on Pt/ZrO2-g-Al2O3 (Pt/ZrAl), Pt/ZrO2-SO4 (Pt/ZrS) and Pt/ZrO2-WO3 (Pt/ZrW) was 5.23%, 4.06% and 1.23% respectively. 
Keywords: Hexane, isomerization, pentane, Pt/ZrAl, Pt/ZrS, Pt/ZrW

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