Please use this identifier to cite or link to this item: https://hdl.handle.net/11147/4747
Title: Isomerization of ?-pinene over calcined natural zeolites
Authors: Akpolat, Oğuz
Gündüz, Gönül
Özkan, Fehime
Beşün, Nurgün
Keywords: α-Pinene
Camphene
Catalyst characterization
Clinoptilolite
Isomerization
Kinetic modelling
Issue Date: Jun-2004
Publisher: Elsevier Ltd.
Source: Akpolat, O., Gündüz, G., Çakıcıoğlu Özkan, S. F., and Beşün, N. (2004). Isomerization of α-pinene over calcined natural zeolites. Applied Catalysis A: General, 265(1), 11-22. doi:10.1016/j.apcata.2003.12.055
Abstract: In this work, isomerization reaction of α-pinene was studied over several heat-treated natural zeolite catalysts, rich in clinoptilolite, from Balýkesir-Bigadic region in Turkey in a batch slurry reactor under nitrogen atmosphere. Zeolite samples were calcined at different temperatures such as 300, 450 and 600°C. All catalysts were tested in the isomerization reaction of α-pinene and were characterised by nitrogen adsorption experiments, IR, and XRD measurements. Acidity strength and the distribution of Lewis and Bronsted acid sites of the samples were determined. Selectivities to main reaction products, camphene and limonene, and reaction kinetics were investigated. Catalytic activity, that is total conversion of α-pinene, of heat-treated samples decreased with increasing calcination temperatures. Selectivity to limonene is dependent on α-pinene conversion at high conversion levels while the selectivity to camphene is not. The formation of heavy products increased with treatment temperature. It was seen that α-pinene consumption could be described by a first-order kinetics.
URI: http://doi.org/10.1016/j.apcata.2003.12.055
http://hdl.handle.net/11147/4747
ISSN: 0926-860X
0926-860X
Appears in Collections:Chemical Engineering / Kimya Mühendisliği
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

Files in This Item:
File Description SizeFormat 
4747.pdfMakale398.79 kBAdobe PDFThumbnail
View/Open
Show full item record

CORE Recommender

SCOPUSTM   
Citations

40
checked on Nov 27, 2021

WEB OF SCIENCETM
Citations

41
checked on Nov 27, 2021

Page view(s)

36
checked on Dec 3, 2021

Download(s)

48
checked on Dec 3, 2021

Google ScholarTM

Check

Altmetric


Items in GCRIS Repository are protected by copyright, with all rights reserved, unless otherwise indicated.