Evaluation of Fe- and Cr-containing clinoptilolite catalysts for the production of camphene from alpha-pinene


AKGÜL M., Ozyagci B., KARABAKAN A.

JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY, vol.19, no.1, pp.240-249, 2013 (Peer-Reviewed Journal) identifier identifier

  • Publication Type: Article / Article
  • Volume: 19 Issue: 1
  • Publication Date: 2013
  • Doi Number: 10.1016/j.jiec.2012.07.024
  • Journal Name: JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
  • Journal Indexes: Science Citation Index Expanded, Scopus
  • Page Numbers: pp.240-249

Abstract

The catalytic properties of the Cr3+- and Fe3+-loaded clinoptilolites were screened in the liquid-phase isomerization of alpha-pinene and the major products were found to be camphene and limonene. Selectivity to camphene was superior for the 0.7Fe-CL catalyst than those observed for the Raw-CL and 0.4Cr-CL catalyst. Over raw clinoptilolite, the proportion of limonene and other isomers reached similar to 65% while it was similar to 15% with 0.7Fe-CL and similar to 56% with 0.4Cr-CL. The results also show that the selectivity to camphene increases with increasing reaction time reaching up to about similar to 72% at 428 K over 0.7Fe-CL catalyst. (C) 2012 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.