Numerical study and optimization of liquid-liquid flow in cyclone pipe

Kou, Jie; Chen, Yi; Wu, Junqiang

doi:10.1016/j.cep.2019.107725

Cited by 21 publications

(5 citation statements)

References 28 publications

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“…The treatment of the multiphase mixture and lower number of differential equations to be solved, make the mixture model an efficient method for the systems with polydisperse particles and multiple phases [36]. Multiphase slurry systems, cyclone separators [38,39], cavitation processes [40], and nanofluidics [41] are some examples of where the mixture model can be applied and has been used previously by other researchers. For the multiphase slurry systems, although numerous efforts have been made to develop models capable of predicting the flow behavior, the lack of a model which can capture the non-Newtonian behavior of the carrier and effects of particle size distribution (PSD) is sensed.…”

Section: Gillies and Shookmentioning

confidence: 99%

CFD Simulation of Turbulent non-Newtonian Slurry Flows in Horizontal Pipelines

Sadeghi

Zheng

et al. 2022

Ind. Eng. Chem. Res.

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Understanding the flow behavior of complex concentrated slurries is of tremendous importance for industrial waste management. In this study, the transport of three-phase oil sands tailings in a horizontal pipeline is simulated via the mixture multiphase model coupled with the kinetic theory of granular flow. The solid particles and bitumen droplets are conveyed via a non-Newtonian carrier fluid in a turbulent regime inside an industrial-scale pipeline. The simulation results showed exceptional agreement with the field data, with errors of < 3.5% for velocity distribution and < 15% for the pressure drop.A systematic parametric investigation was performed for a wide range of flow conditions, showing that the majority of bitumen droplets reside at the top region of the pipe.Our findings may help design an effective process for the separation of bitumen residues during pipeline transport.

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Section: Gillies and Shookmentioning

confidence: 99%

CFD Simulation of Turbulent non-Newtonian Slurry Flows in Horizontal Pipelines

Sadeghi

Zheng

et al. 2022

Ind. Eng. Chem. Res.

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“…Campen 29 similar swirler with Delft cyclone is used in the axial separator, while the light-phase outlet is placed downstream 5 Liu 30 the body of this separator is similar to the conventional separator, while the curved blades serve as a swirler to establish swirling flow 6 Hamza 31 similar structure with the one proposed by Van Campen, but a conical tube is used in the swirl chamber 7 Kou 33 similar structure with separator investigated by Hamza, but the outlet for the light phase is placed inside the guide vanes The details of the settling tanks can be found in our other work. 35 The oil is fully settled and reused after passing through the separator to ensure the stability of the inlet mixture.…”

Section: Experimental Systemmentioning

confidence: 99%

Experimental Investigation on a New Axial Separator for Oil–Water with Small Density Difference

Zhao

Fan

Zhang

et al. 2021

Ind. Eng. Chem. Res.

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Hydrocyclones play an important role in pre-separation downhole to decrease the water content of produced liquids. While the structural feature of tangential inlet limits the further improvement of separation efficiency. Therefore, the axial separator has emerged as the potential alternative due to its low swirl turbulence, easy installation, and low energy consumption. Since the first proposition of axial separators, several designs have been introduced. They are used for two fluids with more than a 100 kg/m 3 density difference. However, there are some situations where the oil density is above 900 kg/m 3 and their densities are closer. In this paper, a new axial separator was introduced, and the separation performance was investigated experimentally using gear oil with 920 kg/m 3 density and tap water. The results show that the separator keeps high separation efficiency, and the oil concentration in heavy phase outlet is below 500 mg/ L in experimental conditions where water flow rate ranges from 3 to 7 m 3 /h and oil fraction ranges from 1 to 10%. Additionally, higher inlet flow rate and larger oil fraction lead to an increase of oil concentration. Also, the split ratio should be kept in a reasonable range to acquire the best separation performance.

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“…The root of reagent-free method is to remove oil and oil products from the water by water settling out with the subse quent collection of oil by special devices: settling tanks, hydrocyclones, oil traps, etc. The main disadvantage of these apparatuses is a low degree of separation of water-oil emul sions (Diederen et al, 1998, Kou et al, 2019, Vanhoutte et al, 2011, Young et al, 1994, Zeng et al, 2016, Zhou et al, 2010. In some cases, it is advisable to use the membranes for separation of water-oil emulsions (Babiker et al, 2019).…”

Section: Research Problemmentioning

confidence: 99%

Advances in Raw Material Industries for Sustainable Development Goals

Litvinenko¹

2020

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Numerical study and optimization of liquid-liquid flow in cyclone pipe

Cited by 21 publications

References 28 publications

CFD Simulation of Turbulent non-Newtonian Slurry Flows in Horizontal Pipelines

CFD Simulation of Turbulent non-Newtonian Slurry Flows in Horizontal Pipelines

Experimental Investigation on a New Axial Separator for Oil–Water with Small Density Difference

Advances in Raw Material Industries for Sustainable Development Goals

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