Isomerisation of α-pinene over Beta zeolites synthesised by different methods

被引：41

作者：

Gündüz, G

Dimitrova, R ^{[1
]}

Yilmaz, S

Dimitrov, L

Spassova, M

机构：

[1] Bulgarian Acad Sci, Inst Organ Chem, Sofia 1113, Bulgaria

[2] Ege Univ, Dept Chem Engn, Izmir, Turkey

[3] Bulgarian Acad Sci, Inst Organ Chem, BU-1113 Sofia, Bulgaria

[4] Izmir Inst Technol, Dept Chem Engn, Izmir, Turkey

[5] Univ Fed Sao Carlos, Ctr Ciencias Exatas & Tecnol, BR-13560 Sao Carlos, SP, Brazil

来源：

JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL | 2005年 / 225卷 / 02期

关键词：

Beta zeolite; mesopores; isomerisation; alpha-pinene;

D O I：

10.1016/j.molcata.2004.09.018

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Liquid-phase alpha-pinene isomerisation at 100degreesC in a batch reactor is studied over Beta zeolites synthesised by different methods. It is confirmed that alpha-pinene forms a carbenium ion in an acidic environment, which rearranges without capture by nucleophiles, to form mainly hydrocarbons as camphene, terpinenes, terpinolenes and heavy products. The microporous Beta samples show low activity despite the high acidity most probably because of the hindered intermediate formation. The nature of the enhanced activity of Beta mesopores samples is suggested to be a result from the high accessibility of the acidic sites. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：253 / 258

页数：6

共 32 条

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