Rare earth metals modified Ni-S2O82-/ZrO2-Al2O3 catalysts for n-pentane isomerization

Hua Song; Lele Zhao; Na Wang

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Rare earth metals modified Ni-S₂O₈^2-/ZrO₂-Al₂O₃ catalysts for n-pentane isomerization

Catalysis, Kinetics and Reaction Engineering | Updated：2026-01-06

- Rare earth metals modified Ni-S₂O₈^2-/ZrO₂-Al₂O₃ catalysts for n-pentane isomerization
- Chinese Journal of Chemical Engineering Vol. 25, Issue 1, Pages: 74-78(2017)
- Affiliations：
  
  1. College of Chemistry & Chemical Engineering, Northeast Petroleum University,Daqing,China,163318
  2. Provincial Key Laboratory of Oil & Gas Chemical Technology, College of Chemistry & Chemical Engineering, Northeast Petroleum University,Daqing,China,163318
- Author bio：
- Funds：
- DOI：
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- Published：2017
- Accepted：
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摘要

Abstract

The effects of adding rare earth (RE) metals

such as Ce

Yb and Pr to Ni-S

/ZrO

-Al

(Ni-SZA) on the structure of catalysts as well as their isomerization performance were studied. The prepared catalysts were characterized by XRD

BET

FT-IR

Py-IR

and H

-TPR. The results showed that the addition of RE metals can increase the strength and amounts of the acid sites

improve the redox properties of catalysts. The Yb-Ni-SZA catalyst showed the best redox properties

which could provide enough metallic sites. In addition

it provided the largest amounts of weak and moderately strong acid sites. Among RE metals modified Ni-SZA catalyst

Yb-Ni-SZA exhibited the highest isopentane yield of 61.7% at 160℃. The optimum isomerization catalytic performance of the catalysts decreased in the order of Yb-Ni-SZA Pr-Ni-SZA Ni-SZA Ce-Ni-SZA.

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