期刊
APPLIED CATALYSIS A-GENERAL
卷 427, 期 -, 页码 98-105出版社
ELSEVIER
DOI: 10.1016/j.apcata.2012.03.037
关键词
Ferrierite; Isomerization; alpha-Pinene; Limonene; Camphene; Secondary reactions
资金
- Ministry of Science and Higher Education [75/E-68/S/2008-2]
Transformations of alpha-pinene and limonene over hydrogen forms of commercial ferrierite type zeolites of different origin (Tosoh Corp. and Zeolyst Intern.) have been studied in the liquid phase at 313-363 K. The catalysts were characterized by XRD, sorption of nitrogen, scanning electron microscopy, FTIR and Al-27 & H-1 MAS NMR. The concentration of Bronsted acid sites has been determined by H-1 MAS NMR and FTIR quantitative measurements, while their strength was estimated by adsorption of CO. The liquid-phase isomerization of alpha-pinene proceeds smoothly on the two zeolite catalysts, and the initial reaction rates have been compared. Camphene and limonene were the main products, while the selectivity to these hydrocarbons differed. Isomerization of pure limonene was also studied, showing large difference in activity over the two ferrierite catalysts. The selectivity of alpha-pinene transformations has been rationalized in terms of retarded consecutive isomerization of limonene over the zeolite from Zeolyst. (C) 2012 Elsevier BM. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据