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Kinetic study of ionic liquid synthesis in a microchannel reactor
- Source :
-
Chemical Engineering Journal . Aug2010, Vol. 162 Issue 1, p350-354. 5p. - Publication Year :
- 2010
-
Abstract
- Abstract: A microchannel reaction system, mainly consisting of a micromixer and a tubular reactor, was used to investigate the kinetics of butylation of 1-methyl-imidazole [MIM] for the synthesis of the ionic liquid 1-butyl-3-methylimidazolium bromide ([BMIM]Br). The low variance (σ θ 2 =0.019) of the residence time distribution, measured by a step stimuli–response tracer method, implies that this reaction system could be regarded as a plug flow reactor. As a fast and reliable method, the titration of bromide was established to determine the yield of [BMIM]Br. The reaction kinetics was studied by varying the molar ratio of 1-bromobutane [BrBu] to [MIM] (1.04–1.49) and temperature (75–90°C). A second-order kinetics with respect to [MIM] and [BrBu] and an activation energy of 78.4kJ/mol were found. [Copyright &y& Elsevier]
Details
- Language :
- English
- ISSN :
- 13858947
- Volume :
- 162
- Issue :
- 1
- Database :
- Academic Search Index
- Journal :
- Chemical Engineering Journal
- Publication Type :
- Academic Journal
- Accession number :
- 52210317
- Full Text :
- https://doi.org/10.1016/j.cej.2010.04.063