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Fatty acid methyl ester heterogeneous self‐metathesis in hydrophobic green solvent: Mass transfer limitations, catalyst recyclability, and stability
Author(s) -
HasiburRahman Muhammad,
Hamoudi Safia,
Belkacemi Khaled
Publication year - 2018
Publication title -
the canadian journal of chemical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.404
H-Index - 67
eISSN - 1939-019X
pISSN - 0008-4034
DOI - 10.1002/cjce.22918
Subject(s) - catalysis , ionic liquid , chemistry , metathesis , kinetics , salt metathesis reaction , mesoporous material , mass transfer , organic chemistry , solvent , heterogeneous catalysis , chemical engineering , chromatography , polymerization , physics , quantum mechanics , engineering , polymer
The role of room‐temperature ionic liquids (RTILs), [bmim][PF 6 ] and [bmim][Tf 2 N], as reaction media regarding the catalytic activity and stability of methyltrioxorhenium (MTO) supported on ZnCl 2 ‐modified mesoporous Al 2 O 3 has been studied for self‐metathesis of a functionalized olefin, methyl oleate. The humidity influence on the catalytic activity was probed. The catalyst recycling ability and the kinetics of the metathesis reaction using these RTILs were also investigated. It was found that the MTO‐based catalyst was efficient in viscous hydrophobic RTIL solvents. However, their high viscosity was found to increase the mass transfer limitations thus somewhat impacting the reaction kinetics. Nevertheless, better catalyst stability was reached allowing its possible recycling when used in RTIL media.