Mixing and separation of liquid-liquid two-phase in a novel cyclone reactor of isobutane alkylation catalyzed by ionic liquid

Zhang, Mingyang; Zhang, Tianyu; Wang, Zhenbo; Zhu, Liyun; You-hai, Jin

doi:10.1016/j.powtec.2017.01.009

Cited by 26 publications

(14 citation statements)

References 14 publications

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“…The comparison of η obtained from ERT experiments and simulations could be used to validate the reliability of numerical results. ,, The maximum relative error of η obtained from experiments was not more than 2.0%. The η under various R o , R g/k and Q values are shown in Figure .…”

Section: Resultsmentioning

confidence: 93%

“…A novel liquid–liquid cyclone reactor (LLCR) (Figure ) was developed for the isobutane alkylation catalyzed by ionic liquids. Zhang et al (2017) reported that the volume fraction of the heavy phase in the overflow was less than 5% and the residence time was less than 1 s by computational fluid dynamics (CFD) . This indicated that the LLCR could achieve the quick separation of liquid–liquid phases.…”

Section: Introductionmentioning

confidence: 99%

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Experimental and Computational Investigation of Mixing and Separation Performance in a Liquid–Liquid Cyclone Reactor

Duan

Meng

Zhang

et al. 2019

Ind. Eng. Chem. Res.

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Electrical resistance tomography was used to estimate the separation efficiency (η) and mean mixing index (M m) of a liquid–liquid cyclone reactor under different overflow split ratios (R o), feed ratios (R g/k), and total flow rates (Q). Two factors obtained from numerical simulations, namely, the magnitude of tangential velocity and the size of recirculation eddies, were utilized to analyze the experimental results. The experimental results showed that the increasing R o, R g/k, and Q led to the increase of η and decrease of M m. The numerical result revealed that the change in size of recirculation eddies caused by different R o and R g/k values played a more dominant role than the change in magnitude of tangential velocity. The change in η and M m under different Q was caused by both the tangential velocity and size of recirculation eddies. The empirical formulas for predicting the η and M m of liquid–liquid cyclone reactor (LLCR) were established and proved to be reliable.

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Section: Resultsmentioning

confidence: 93%

Section: Introductionmentioning

confidence: 99%

Experimental and Computational Investigation of Mixing and Separation Performance in a Liquid–Liquid Cyclone Reactor

Duan

Meng

Zhang

et al. 2019

Ind. Eng. Chem. Res.

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“…The rationality of cold model investigation has been introduced in our previously published paper; therefore, they will not be covered here . Moreover, the test liquids used in the paper is consistent with those in the above‐mentioned literature.…”

Section: Methodsmentioning

confidence: 99%

“…Moreover, some preliminary studies about the cold‐model investigation of the concentration distribution and droplet size distribution (DSD) of dispersed phase and the recoveries of two phases at outlets have been completed and the related papers have been published . Based on this, the methods to evaluate the mixing and separation efficiency of the LLCR have been established.…”

Section: Introductionmentioning

confidence: 99%

Cold‐model investigation of the effect of dispersed phase inlet on the dispersion uniformity in a liquid‐liquid cyclone reactor for ionic liquid‐catalyzed isobutene alkylation

et al. 2019

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A liquid-liquid cyclone reactor was proposed for ionic liquid-catalyzed isobutane alkylation to improve the mixing efficiency and accelerate the separation between alkylate and ionic liquid. The Eulerian-Eulerian multiphase flow model and Reynolds stress model (RSM) were used to simulate the flow field in the reactor. A parameter, named the dispersion uniformity of dispersed phase, β, was used to quantify the dispersibility of the dispersed phase in the reaction chamber of the reactor. Moreover, the effects of the structural parameters of the dispersed phase inlet (slot) on the dispersion uniformity of the dispersed phase were investigated. As can be seen from the results, the angle of the slot has an effect on the inlet velocity direction, while the other structural parameters have an effect on the inlet velocity magnitude. The shear force is the impetus for the dispersion of the dispersed phase into the continuous phase, and the relative velocity is the cause of the shear force. Therefore, by analyzing the effect of the structural parameters of the slot on the dispersion uniformity, it can be deduced that the dispersion of the dispersed phase performs well under a suitable inlet velocity ratio range of the continuous phase to the dispersed phase (2.5-3.5).How to cite this article: Zhang M, Wang Z, Liu Z, et al. Cold-model investigation of the effect of dispersed phase inlet on the dispersion uniformity in a liquid-liquid cyclone reactor for ionic liquid-catalyzed isobutene alkylation. Can J Chem Eng. 2020;98:818-828. https://doi.

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“…The recoveries of two phases were used to evaluate the separation performance of the cyclone reactor. 22 Moreover, a numerical simulation method for ow eld distribution of the cyclone reactor was established. 22,23 Besides, the droplet size distributions of dispersed phase were obtained by the focused beam reectance measurement (FBRM D600L) and population balance model (PBM).…”

Section: Introductionmentioning

confidence: 99%

Cold model investigation of mixing-separation time distribution in a multi-element process coupled cyclone reactor for ionic liquid-catalyzed isobutane/butene alkylation

Zhang

et al. 2019

RSC Adv.

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Mixing and separation of liquid-liquid two-phase in a novel cyclone reactor of isobutane alkylation catalyzed by ionic liquid

Cited by 26 publications

References 14 publications

Experimental and Computational Investigation of Mixing and Separation Performance in a Liquid–Liquid Cyclone Reactor

Experimental and Computational Investigation of Mixing and Separation Performance in a Liquid–Liquid Cyclone Reactor

Cold‐model investigation of the effect of dispersed phase inlet on the dispersion uniformity in a liquid‐liquid cyclone reactor for ionic liquid‐catalyzed isobutene alkylation

Cold model investigation of mixing-separation time distribution in a multi-element process coupled cyclone reactor for ionic liquid-catalyzed isobutane/butene alkylation

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