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Comparison of two nanofiltration membrane reactors for a model reaction of olefin metathesis achieved in toluene

Abstract : The recent commercialisation of nanofiltration membranes resistant toward organic solvents is a real opportunity for fine chemistry. This study deals with different ways of integration of organic solvent nanofiltration for a specific type of reactions known as olefin metathesis and shows the use of two nanofiltration membrane reactors both running in cross-flow filtration mode (0.1 m s- 1). They are used either in semi-continuous or continuous mode. A model ring closing metathesis reaction is chosen for the demonstration. A commercially available pre-catalyst, namely Grubbs-Hoveyda II, as well as a commercial polyimide membrane (Starmem 122, MWCO 220 g mol- 1) are used. Firstly, nanofiltration of the single pre-catalyst allows establishing that the highest retention is obtained with a 40 bar pressure. Secondly, this pressure is used with the two membrane reactors before testing other conditions. Finally, interests and limitations of the two reactors are discussed.
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Submitted on : Friday, July 5, 2013 - 11:41:24 AM
Last modification on : Thursday, March 5, 2020 - 2:02:42 PM
Long-term archiving on: : Sunday, October 6, 2013 - 4:12:21 AM

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Murielle Rabiller-Baudry, Ghassan Nasser, Thierry Renouard, David Delaunay, Martin Camus. Comparison of two nanofiltration membrane reactors for a model reaction of olefin metathesis achieved in toluene. Separation and Purification Technology, Elsevier, 2013, 116, pp.46-60. ⟨10.1016/j.seppur.2013.04.052⟩. ⟨hal-00841224⟩

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