Please use this identifier to cite or link to this item: https://hdl.handle.net/11147/4653
Title: Alpha-pinene isomerization on acid-treated clays
Authors: Beşün, Nurgün
Özkan, Fehime
Gündüz, Gönül
Özkan, Fehime
Izmir Institute of Technology. Chemical Engineering
Keywords: Acid-activated clay
Alpha-pinene
Camphene
Isomerization
Montmorillonite clays
Issue Date: Jan-2002
Publisher: Elsevier Ltd.
Source: Beşün, N., Çakıcıoğlu Özkan, S. F., and Gündüz, G. (2002). Alpha-pinene isomerization on acid-treated clays. Applied Catalysis A: General, 224(1-2), 285-297. doi:10.1016/S0926-860X(01)00852-3
Abstract: Liquid phase isomerization of α-pinene was studied over a number of differently pre-treated montmorillonite clays. The effects of the acid pre-treatment parameters (acid-to-clay ratio (A/C), water-to-acid ratio (W/A), temperature and pre-treatment time) on the product distribution were investigated. It was observed that the pre-treatment with acid improved the catalytic activity of that catalyst which was activated at 200 °C for 4 h at A/C ratios between 0.2 and 0.4. Alpha-pinene consumption was very small over the catalysts prepared with an A/C ratio of 0.8. Characterization studies that were done by nitrogen and water vapor adsorption experiments and by IR measurements showed that catalysts with high differential pore volumes for pores around 2 nm and homogenous mesopore distributions and with low dealumination degrees were good catalysts for the production of camphene. Catalysts having heterogeneous mesoporosity were found to be the preferable ones for limonene production.
URI: http://doi.org/10.1016/S0926-860X(01)00852-3
http://hdl.handle.net/11147/4653
ISSN: 0926-860X
0926-860X
Appears in Collections:Chemical Engineering / Kimya Mühendisliği
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
Sürdürülebilir Yeşil Kampüs Koleksiyonu / Sustainable Green Campus Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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