Development of liquid-liquid cylindrical cyclone (LLCC) separator for oil-water separation

Dharma, Irfan Aditya; Arffan, Fuad; Prambudi, Anggi Riyo; Widyaparaga, Adhika; Pranoto, Indro; Khasani,

doi:10.1063/1.4949301

Cited by 3 publications

(2 citation statements)

References 5 publications

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“…The liquid−liquid hydrocyclone (LLHC) was not widely applied until 1980s when Colman and Thew conducted the fundamental studies of LLHC. 5−8 LLHCs were first used commercially in the petroleum industry, 9,10 and gradually popularized in other fields such as chemical, 11,12 environmental, 13,14 food industries, 15 and biological applications. 16 However, separation under different working conditions calls for different hydrocyclones.…”

Section: Introductionmentioning

confidence: 99%

“…The use of common hydrocyclones for liquid–liquid separation was earliest recorded in 1940s, which was more than 50 years after the first hydrocyclone appeared, indicating the difficulty of liquid–liquid separation. The liquid–liquid hydrocyclone (LLHC) was not widely applied until 1980s when Colman and Thew conducted the fundamental studies of LLHC. − LLHCs were first used commercially in the petroleum industry, , and gradually popularized in other fields such as chemical, , environmental, , food industries, and biological applications . However, separation under different working conditions calls for different hydrocyclones.…”

Section: Introductionmentioning

confidence: 99%

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Separation Performance of a Novel Liquid–Liquid Dynamic Hydrocyclone

Huang

Deng

Guan

et al. 2018

Ind. Eng. Chem. Res.

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To investigate the separation performance of a novel liquid–liquid dynamic hydrocyclone (LLDH), a series of experiments and numerical simulations were conducted. Algebraic slip mixture model was used to simulate the multiphase flow in the LLDH, in which the turbulence was modeled using Reynolds stress model and the rotation of the walls was modeled by multiple reference frame model. The numerical results showed a good agreement with the observations and measurements in experiments. The results showed that the increase of rotation speed would strengthen the swirling intensity in LLDH and thereby separation efficiency was raised. However, increase of flow rate would decrease the residence time of oil droplets, causing reduction in efficiency. By comparison, flow split ratio had slight influence on the flow field, and the efficiency rose a little as flow split ratio increased. The efficiency of the LLDH could remain high when the nondimensional rotation rate was large enough.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Separation Performance of a Novel Liquid–Liquid Dynamic Hydrocyclone

Huang

Deng

Guan

et al. 2018

Ind. Eng. Chem. Res.

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Induced oil droplet coalescence influence on watercut improvement of liquid-liquid cylindrical cyclone (LLCC) oil-water separator

Widyaparaga¹,

Ramadhan²,

Faza³

et al. 2018

AIP Conference Proceedings

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Oil–water two-phase flow-induced vibration of a cylindrical cyclone with vortex finder

Liu

Zhang

et al. 2023

Physics of Fluids

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Cylindrical cyclones play an important role in oil–water separation and sewage treatment in the petroleum industry. Here, we describe the characteristics of vibration induced by a two-phase rotational flow in a cylindrical cyclone. The cyclone operating parameters together with a dimensional analysis and multiphase flow numerical simulation were used to understand the flow field characteristics. The frequency and amplitude of pressure fluctuation were obtained by measuring pressure changes at points on the axis of the device. It shows that the pressure in a cylindrical cyclone varies periodically during separation and that fluctuation frequency and amplitude are related to the inlet velocity and flow split ratio. The effect of the overflow split ratio on the pressure fluctuation frequency is negligible, but increasing the overflow split ratio will cause greater fluctuation of the flow. For a cylindrical cyclone, the pressure fluctuation frequency can be calculated from the inlet velocity. Adjusting the inlet velocity and the overflow split ratio changes the mechanical response of the structure. The results of a modal analysis show that the structural vibration response is consistent with the response state of the lowest point of the internal central-vortex pressure and that both are in approximate circular motion. Furthermore, the frequency of pressure fluctuation induced by the flow is close to the intrinsic frequency of the structure with a single bottom constraint, which can cause unwanted resonance easily. Therefore, an appropriately added constraint on a cylindrical cyclone should be taken into consideration to avoid the resonance frequency.

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Development of liquid-liquid cylindrical cyclone (LLCC) separator for oil-water separation

Cited by 3 publications

References 5 publications

Separation Performance of a Novel Liquid–Liquid Dynamic Hydrocyclone

Separation Performance of a Novel Liquid–Liquid Dynamic Hydrocyclone

Induced oil droplet coalescence influence on watercut improvement of liquid-liquid cylindrical cyclone (LLCC) oil-water separator

Oil–water two-phase flow-induced vibration of a cylindrical cyclone with vortex finder

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