Trimerization and tetramerization of ethylene in continuous gas-phase reaction using a Cr-based supported liquid phase catalyst
Müller T, Dixon JT, Haumann M, Wasserscheid P (2019)
Publication Type: Journal article
Publication year: 2019
Journal
Book Volume: 4
Pages Range: 131-140
Journal Issue: 1
DOI: 10.1039/c8re00179k
Abstract
Homogeneous Cr-PNP tri- and tetramerization catalysts were dissolved together with the co-catalyst MAO in the high-boiling, non-polar, aliphatic hydrocarbon perhydro-dibenzyltoluene (H18-DBT). The solution was then dispersed onto different high surface area supports. The resulting solid materials were tested in the gas-phase selective oligomerization of ethylene at 43 °C and pressures between 1 and 14 bar. Low activities were observed at ambient pressure. At ethylene pressures of higher than 3 bar the formed 1-hexene and 1-octene condensed inside the porous system, thereby facilitating the dissolution and redistribution of the Cr-PNP catalyst. Further studies were conducted at pressures up to 35 bar at which a change in the primary reaction selectivity from 1-hexene to 1-octene could be observed. Such a selectivity switch is in accordance with previously reported mechanistic and kinetic studies.
Authors with CRIS profile
Tobias Müller
Lehrstuhl für Chemische Reaktionstechnik
Marco Haumann
Lehrstuhl für Chemische Reaktionstechnik
Peter Wasserscheid
Lehrstuhl für Chemische Reaktionstechnik
Involved external institutions
South Africa (ZA)How to cite
APA:
Müller, T., Dixon, J.T., Haumann, M., & Wasserscheid, P. (2019). Trimerization and tetramerization of ethylene in continuous gas-phase reaction using a Cr-based supported liquid phase catalyst. Reaction Chemistry & Engineering, 4(1), 131-140. https://dx.doi.org/10.1039/c8re00179k
MLA:
Müller, Tobias, et al. "Trimerization and tetramerization of ethylene in continuous gas-phase reaction using a Cr-based supported liquid phase catalyst." Reaction Chemistry & Engineering 4.1 (2019): 131-140.
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