Study on the pinene isomerization catalyzed by TiM

doi:10.1016/j.cjche.2018.02.005

Abstract

Abstract: The isomerization reaction of pinene is one of the most important chemical reactions in the deep processing of pinene. The purpose of this study is to improve the performance of the metatitanic acid by composite. The composite metatitanic acid catalyst TiM was prepared by adding Mn elements in the preparation process. The catalytic performance of TiM was evaluated. Comparison of TiM and metatitanic acid catalyst (Ti-FGP), the reaction rate of TiM catalyst was faster, and after the reaction, the yield of camphene and tricyclene increased about 1%. The catalysts were characterized by an SEM, FT-IR and laser particle size analyzer. The results show that the pinene isomerization reaction requires the synergistic action of the Brönsted acid and Lewis acid. Brönsted acid has great influence on the activity of catalyst, and Lewis acid has a great influence on the selectivity of the catalyst. The structure and morphology of the catalyst have a certain effect on the selectivity of pinene isomerization reaction.

Key words: &alpha, -Pinene isomerization, Camphene, Composite metatitanic acid

摘要： The isomerization reaction of pinene is one of the most important chemical reactions in the deep processing of pinene. The purpose of this study is to improve the performance of the metatitanic acid by composite. The composite metatitanic acid catalyst TiM was prepared by adding Mn elements in the preparation process. The catalytic performance of TiM was evaluated. Comparison of TiM and metatitanic acid catalyst (Ti-FGP), the reaction rate of TiM catalyst was faster, and after the reaction, the yield of camphene and tricyclene increased about 1%. The catalysts were characterized by an SEM, FT-IR and laser particle size analyzer. The results show that the pinene isomerization reaction requires the synergistic action of the Brönsted acid and Lewis acid. Brönsted acid has great influence on the activity of catalyst, and Lewis acid has a great influence on the selectivity of the catalyst. The structure and morphology of the catalyst have a certain effect on the selectivity of pinene isomerization reaction.

关键词: &alpha, -Pinene isomerization, Camphene, Composite metatitanic acid

Jionghua Xiang, Zhenghong Luo. Study on the pinene isomerization catalyzed by TiM[J]. Chin.J.Chem.Eng., 2018, 26(12): 2537-2541.

Jionghua Xiang, Zhenghong Luo. Study on the pinene isomerization catalyzed by TiM[J]. Chinese Journal of Chemical Engineering, 2018, 26(12): 2537-2541.

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