Cold-model investigation of effects of operating parameters and overflow outlet diameter on separation with a liquid–liquid cyclone reactor for isobutane alkylation catalyzed by ionic liquid

Wang, Zhenbo; Zhang, Mingyang; Liu, Zhichang; Zhu, Liyun; You-hai, Jin; Chen, Xu

doi:10.1016/j.cherd.2018.07.037

Cited by 12 publications

(6 citation statements)

References 17 publications

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“…Furthermore, several initial investigations have been conducted on the cold model examination of the distribution of the concentration and DSD of the dispersed phase. Additionally, the recoveries of the two phases at outlets have been examined, and the findings have been documented in relevant publications. , Besides, the evaluation methodologies for assessing the efficiency of separation and mixing in the LLCR have been developed.…”

Section: Progress In the Computational Isobutane Alkylation Processmentioning

confidence: 99%

A Review of Computational Fluid Dynamics Modeling for Isobutane Alkylation: Process Optimization, Reactor Design, and Future Perspectives

Noorpoor,

Rahmani

2024

Energy Fuels

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Section: Progress In the Computational Isobutane Alkylation Processmentioning

confidence: 99%

A Review of Computational Fluid Dynamics Modeling for Isobutane Alkylation: Process Optimization, Reactor Design, and Future Perspectives

Noorpoor,

Rahmani

2024

Energy Fuels

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“…Hence, a suitable reactor was needed to maximize the catalyst performance, while suppressing side reactions. A new liquid–liquid cyclone reactor (LLCR) was proposed by Wang et al . to achieve fast separation and inhibit side reactions.…”

Section: Introductionmentioning

confidence: 99%

Study of the Mixing Degree in the Cyclone Reactor for Alkylation Catalyzed by Ionic Liquid based on the Information Entropy

Zhu,

Bi,

Duan

et al. 2024

Ind. Eng. Chem. Res.

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A new liquid−liquid cyclone reactor (LLCR) was proposed to enhance the degree of mixing for ionic liquid alkylation. The residence time of the light phase was monitored with the computational fluid dynamics-population balance model coupled model. The mixing entropy and mixing time based on the information entropy were defined to quantify the mixing degree. Additionally, the effects of the operating parameters on the mixing degree were investigated. The results show that the separation process of the light phase is accelerated with the increases in the operating parameters, but the overflow ratio and feed ratio have little effect on the total residence time of the light phase. Besides, a strong mixing degree can be achieved with a high total flow rate and feed ratio and moderate overflow ratio. Based on the results, the mixing-entropy and mixing-time models related to the operating parameters were established. The mixing degree is mainly influenced by the heavy phase in the column section and by the light phase in the cone section, according to the prediction models.

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“…To solve the problem of a long contact time between the product and the catalyst, a cyclone reactor with two tangential inlets was developed . The new cyclone reactor was proven to accomplish hybrid separation integration. − Moreover, the influence of the operating conditions on the separation and mixing performance was studied by analyzing the macroscopic flow characteristics parameters such as velocity, pressure, and phase content. − However, Zhu found an area between the quasi-free and quasi-forced vortex existing in the column of the reactor, where the gradient of the tangential velocity remained small. The area was defined as “Zero Axial Velocity Wave Zone (ZAVWZ)”, which was first confirmed by Bradley .…”

Section: Introductionmentioning

confidence: 99%

Numerical Investigation of Secondary Flow in a Cyclone Reactor for Alkylation Catalyzed by Ionic Liquid

Yang

Duan

et al. 2022

Ind. Eng. Chem. Res.

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The axial velocity and streamline distribution in the cyclone reactor for ionic liquid alkylation are simulated using the Reynolds stress and Eulerian multiphase flow models. The secondary flow rates are calculated based on the formation mechanism. Moreover, the impacts of operating parameters on the secondary flow are investigated. Obvious secondary flows are observed in zero axial velocity wave zone (ZAVWZ). The best back-mixing occurs in the inlet mixing zone with a high secondary flow rate. Meanwhile, the main separation of two phases occurs in the cone zone with poor secondary flow. The secondary flow of two phases is enhanced with an increase in the total flow rate. However, the secondary flow of the light phase is inhibited with an increase in the overflow ratio. The appropriate feed ratio can promote the formation of secondary flow. The best mixing of two phases in the reactor is attained at F = 0.40, E = 1.00, and Q = 4.0 m3/h.

show abstract

Cold-model investigation of effects of operating parameters and overflow outlet diameter on separation with a liquid–liquid cyclone reactor for isobutane alkylation catalyzed by ionic liquid

Cited by 12 publications

References 17 publications

A Review of Computational Fluid Dynamics Modeling for Isobutane Alkylation: Process Optimization, Reactor Design, and Future Perspectives

A Review of Computational Fluid Dynamics Modeling for Isobutane Alkylation: Process Optimization, Reactor Design, and Future Perspectives

Study of the Mixing Degree in the Cyclone Reactor for Alkylation Catalyzed by Ionic Liquid based on the Information Entropy

Numerical Investigation of Secondary Flow in a Cyclone Reactor for Alkylation Catalyzed by Ionic Liquid

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