Hydrodeoxygenation of isoeugenol over alumina-supported Ir, Pt, and Re catalysts

A1 Journal article (refereed)


Internal Authors/Editors


Publication Details

List of Authors: Moldir Alda-Onggar, Päivi Mäki-Arvela, Kari Eränen, Atte Aho, Jarl Hemming, Petriina Paturi, Markus Peurla, Marina Lindblad, Irina L. Simakova, Dmitry Yu. Murzin
Publication year: 2018
Journal: ACS Sustainable Chemistry and Engineering
Journal acronym: ACS Sustainable Chem. Eng.
Volume number: 6
Issue number: 12
Start page: 16205
End page: 16218
eISSN: 2168-0485


Abstract

Hydrodeoxygenation (HDO) of isoeugenol (IE) was investigated using bimetallic iridium–rhenium and platinum–rhenium catalysts supported on alumina in the temperature and pressure ranges of 200–250 °C and 17–40 bar in nonpolar dodecane as a solvent. The main parameters were catalyst type, hydrogen pressure, and initial concentration. Nearly quantitative yield of the desired product, propylcyclohexane (PCH), at complete conversion in 240 min was obtained with Ir–Re/Al2O3 prepared by the deposition–precipitation method using 0.1 mol/L IE initial concentration. High iridium dispersion together with a modification effect of rhenium provided in situ formation of the IrRe active component with reproducible catalytic activity for selective HDO of IE to PCH. The reaction rate was shown to increase with the increasing initial IE concentration promoting also HDO and giving a higher liquid phase mass balance. Increasing hydrogen pressure benefits the PCH yield.


Keywords

Chemical Engineering

Last updated on 2019-22-08 at 06:50

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