6533b825fe1ef96bd12826df
RESEARCH PRODUCT
Kinetic study of ionic liquid synthesis in a microchannel reactor
Holger LöweDong YangAnjie WangChanghong LiXiang LiShaozheng HuYao Wangsubject
MicrochannelGeneral Chemical EngineeringKineticsAnalytical chemistryGeneral ChemistryResidence time distributionIndustrial and Manufacturing EngineeringChemical kineticschemistry.chemical_compoundchemistryBromideIonic liquidEnvironmental ChemistryMicroreactorPlug flow reactor modeldescription
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 (σθ2 = 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 78.4 kJ/mol were found.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2010-08-01 | Chemical Engineering Journal |