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- Title
Effect of N<sub>2</sub> pretreatment on the basicity, structural change, and isomerization activity of MgO and MgO/Mg(OH)<sub>2</sub> catalysts.
- Authors
Suttibut, Prinyanee; Suriye, Kongkiat; Kunjara Na Ayudhya, Sirachaya; Praserthdam, Piyasan; Panpranot, Joongjai
- Abstract
As revealed by the X-ray diffraction, basicity titration, and Fourier transform infrared spectroscopy results, changes in the structural properties, basicity, and isomerization activities were observed on the MgO catalysts upon N2 pretreatment at 325 °C followed by isomerization reaction at 125 °C. These changes became less pronounced when the starting catalysts contained Mg(OH)2 phase or when the catalysts were pretreated under N2 at high temperature alone (without reaction). Because of the limited amount of O2 during 1-butene isomerization, the single-phase MgO could transform into the mixed MgO/Mg(OH)2 catalysts, and the basicity and the isomerization activity were enhanced. Higher temperature pretreatment (i.e. 527 °C), however, led to the changes of Mg(OH)2 back to the single MgO phase and/or sintering of MgO. © 2015 Curtin University of Technology and John Wiley & Sons, Ltd.
- Subjects
ISOMERIZATION; X-ray diffraction; FOURIER transform infrared spectroscopy; BASICITY; HIGH temperatures; SINTERING; CATALYSTS
- Publication
Asia-Pacific Journal of Chemical Engineering, 2015, Vol 10, Issue 2, p248
- ISSN
1932-2135
- Publication type
Article
- DOI
10.1002/apj.1869