Trimerization and tetramerization of ethylene in continuous gas-phase reaction using a Cr-based supported liquid phase catalyst

Journal article


Publication Details

Author(s): Müller T, Dixon JT, Haumann M, Wasserscheid P
Journal: Reaction Chemistry & Engineering
Publication year: 2019
Volume: 4
Journal issue: 1
Pages range: 131-140
ISSN: 2058-9883


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.


FAU Authors / FAU Editors

Haumann, Marco PD Dr.
Lehrstuhl für Chemische Reaktionstechnik
Müller, Tobias
Lehrstuhl für Chemische Reaktionstechnik
Wasserscheid, Peter Prof. Dr.
Lehrstuhl für Chemische Reaktionstechnik


External institutions with authors

Sasol Ltd.


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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Last updated on 2019-29-05 at 21:08

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