Isomerization of α-pinene over Ti02: Kinetics and catalyst optimization

A. Severino; J. Vital; L. S. Lobo

doi:10.1016/S0167-2991(08)63383-2

Isomerization of α-pinene over Ti02: Kinetics and catalyst optimization

A. Severino, J. Vital, L. S. Lobo

DQ - Departamento de Química

Research output: Contribution to journal › Article

14 Citations (Scopus)

Abstract

α-Pinene gives a good yield of camphene over Ti0₂ catalysts. The optimization of selectivity and yield depends on the level of acidity, activation time, activation temperature and other factors. Modelling of the kinetic system is performed by lumping species and using Langmuir-Hinshelwood kinetics. XRD shows that Ti0₂ is present as anatase and IR shows that acidity is mostly of the Bronsted type. The specific surface of ca. 400 m²/g is mostly due to micropores. The average pore radius is 20 Å. This may have an effect on selectivity.

Original language	English
Pages (from-to)	685-692
Number of pages	8
Journal	Studies in Surface Science and Catalysis
Volume	78
Issue number	C
DOIs	https://doi.org/10.1016/S0167-2991(08)63383-2
Publication status	Published - 1 Jan 1993

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Severino, A., Vital, J., & Lobo, L. S. (1993). Isomerization of α-pinene over Ti02: Kinetics and catalyst optimization. Studies in Surface Science and Catalysis, 78(C), 685-692. https://doi.org/10.1016/S0167-2991(08)63383-2

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AB - α-Pinene gives a good yield of camphene over Ti02 catalysts. The optimization of selectivity and yield depends on the level of acidity, activation time, activation temperature and other factors. Modelling of the kinetic system is performed by lumping species and using Langmuir-Hinshelwood kinetics. XRD shows that Ti02 is present as anatase and IR shows that acidity is mostly of the Bronsted type. The specific surface of ca. 400 m2/g is mostly due to micropores. The average pore radius is 20 Å. This may have an effect on selectivity.

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