Vortex centrifugal bubbling reactor

Kuzmin, A. O.; Pravdina, M. Kh.; Yavorsky, A.I.; Yavorskii, N. I.; Parmon, Valentin N.

doi:10.1016/j.cej.2004.12.010

Cited by 22 publications

(11 citation statements)

References 2 publications

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“…In a GLVR, the gas momentum is transferred to the liquid in the reactor chamber, creating high turbulence and causing the rotation of the liquid. Preliminary experimental work was carried out by Kuzmin et al in a bubbling system 19 . Results show that the vortex unit can realize a large liquid specific surface area of 10 3 m 2 /m 3 with a very high surface renewal rate in the range of 10–100 g centrifugal acceleration.…”

Section: Introductionmentioning

confidence: 99%

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Micromixing in a gas–liquid vortex reactor

et al. 2021

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The gas–liquid vortex reactor (GLVR) has substantial process intensification potential for multiphase processes. Essential in this respect is the micromixing efficiency, which is of great importance in fast reaction systems such as crystallization, polymerization, and synthesis of nanomaterials. By creating a vortex flow and taking advantage of the centrifugal force field, the liquid micromixing process can be intensified in the GLVR. Results show that introducing a liquid into a gas‐only vortex unit results in suppression of primary and secondary gas flow. The Villermaux–Dushman protocol is applied to study the effects of the gas flow rate, liquid flow rate, and liquid viscosity based on a segregation index. Based on the incorporation model and reaction kinetics, the micromixing time of the GLVR is determined to be in the range of 10−4 ~ 10−3 s, which is comparable to the highly efficient rotating packed bed and substantially better than a static mixer.

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Section: Introductionmentioning

confidence: 99%

“…This indicates that a region with a high energy dissipation rate per unit volume is created in the vortex chamber with the liquid stream passing through this region. In short, a high‐gravity environment is created without mechanical rotation, 19,20 which can realize considerable process intensification for mixing and mass transfer.…”

Section: Introductionmentioning

confidence: 99%

Micromixing in a gas–liquid vortex reactor

et al. 2021

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“…The past decades have seen a relative resurgence RFB-SG research in several different fields, including nuclear technologies [10,11], drying applications [12,13], and chemical reactors [14][15][16]. The RFB-SG technology has hybrid characteristics of both fluidized bed and packed bed reactors.…”

Section: Introductionmentioning

confidence: 99%

Modeling fast biomass pyrolysis in a gas–solid vortex reactor

Ashcraft

Heynderickx

Marin

2012

Chemical Engineering Journal

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“…In this case, will be almost completely absent or will be minimized drop loss, and the counter-movement the gas and liquid phases to ensure high efficiency of processes in mass exchange VSCMED [7]. In this case, on liquid drops act two kinds' forces, the opposite direction acting centrifugal force [8]:…”

Section: The Results Of Theoretical Researchmentioning

confidence: 99%