Kinetics research on fast exothermic reaction between cyclohexanecarboxylic acid and oleum in microreactor

Wang, K.; Lü, Yangcheng; Xia, Yang; Shao, Huawei; Luo, Guangsheng

doi:10.1016/j.cej.2011.02.072

Cited by 59 publications

(27 citation statements)

References 20 publications

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“…Thus, more accurate kinetic parameters can be acquired, which would otherwise be difficult using a batch reactor (Ebrahimi et al, 2012). They have been successfully used to characterize the kinetics of Diels-Alder reaction , dehydrochlorination of dichloropropanol (Zhang et al, 2012a) and fast exothermic pre-mixing reaction (Wang et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

Reaction kinetics of cyclohexanone ammoximation over TS-1 catalyst in a microreactor

Chen

Wang

Zhang

et al. 2015

Chemical Engineering Science

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Section: Introductionmentioning

confidence: 99%

Reaction kinetics of cyclohexanone ammoximation over TS-1 catalyst in a microreactor

Chen

Wang

Zhang

et al. 2015

Chemical Engineering Science

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“…9,10 These instabilities can provide rapid microfluidic mixing at a short mixing length (< 5 mm). 2,29 Furthermore, the unique advantage of this mixing technology is that the viscoelastic properties responsible for elastic flow instabilities could be readily found in most chemical and biological samples like organic and polymeric solutions, [23][24][25] blood 28 and crowded proteins and enzymes samples. 26,27 In this paper, we used the same microdevice previously reported 2,3 to experimentally show that the viscoelasticity ratio (between mainstream and sidestream liquids) has a direct bearing on the magnitude of the induced elastic flow instabilities, and in particular the transverse flow instability at downstream of a contraction.…”

Section: Introductionmentioning

confidence: 99%

“…1,19,20 For instance, phosphate concentration detection in water quality diagnosis involving the mixing of a sample and viscous reagents. 21,22 In polymer and chemical syntheses in micro-reactors, [23][24][25] dissimilar viscosities could significantly influence the reaction rate. Other applications like rapid mixing of crowded biological solutions 26,27 (e.g.…”

Section: Introductionmentioning

confidence: 99%

Experimental observations of flow instabilities and rapid mixing of two dissimilar viscoelastic liquids

Gan

Lam

2012

AIP Advances

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Viscoelastically induced flow instabilities, via a simple planar microchannel, were previously used to produce rapid mixing of two dissimilar polymeric liquids (i.e. at least a hundredfold different in shear viscosity) even at a small Reynolds number. The unique advantage of this mixing technology is that viscoelastic liquids are readily found in chemical and biological samples like organic and polymeric liquids, blood and crowded proteins samples; their viscoelastic properties could be exploited. As such, an understanding of the underlying interactions will be important especially in rapid microfluidic mixing involving multiple-stream flow of complex (viscoelastic) fluids in biological assays. Here, we use the same planar device to experimentally show that the elasticity ratio (i.e. the ratio of stored elastic energy to be relaxed) between two liquids indeed plays a crucial role in the entire flow kinematics and the enhanced mixing. We demonstrate here that the polymer stretching dynamics generated in the upstream converging flow and the polymer relaxation events occurring in the downstream channel are not exclusively responsible for the transverse flow mixing, but the elasticity ratio is also equally important. The role of elasticity ratio for transverse flow instability and the associated enhanced mixing were illustrated based on experimental observations. A new parameter Deratio = Deside / Demain (i.e. the ratio of the Deborah number (De) of the sidestream to the mainstream liquids) is introduced to correlate the magnitude of energy discontinuity between the two liquids. A new Deratio-Demain operating space diagram was constructed to present the observation of the effects of both elasticity and energy discontinuity in a compact manner, and for a general classification of the states of flow development

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“…[43][44][45][46][47][48][49][50]). The application to reacting systems is less frequent and rarely applied to organic synthesis, likely due to lacking details on kinetics.…”

Section: -Modelling the Flowpatterns In Microreactorsmentioning

confidence: 99%

Continuous flow (micro-)reactors for heterogeneously catalyzed reactions: Main design and modelling issues

Rossetti

2018

Catalysis Today

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Kinetics research on fast exothermic reaction between cyclohexanecarboxylic acid and oleum in microreactor

Cited by 59 publications

References 20 publications

Reaction kinetics of cyclohexanone ammoximation over TS-1 catalyst in a microreactor

Reaction kinetics of cyclohexanone ammoximation over TS-1 catalyst in a microreactor

Experimental observations of flow instabilities and rapid mixing of two dissimilar viscoelastic liquids

Continuous flow (micro-)reactors for heterogeneously catalyzed reactions: Main design and modelling issues

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