Prediction of Flow Behavior of Crude Oil-in-Water Emulsion through the Pipe by Using Rheological Properties

Hoshyargar, Vahid; Marjani, Azam; Fadaei, Farzad; Shirazian, Saeed

doi:10.13005/ojc/280116

Cited by 13 publications

(11 citation statements)

References 8 publications

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“…Therefore, increased TMP will increase the possibility for the deposition of the solutes over the surface followed by sticking of oil over the surface. 23 At a high TMP, the shear stress is reduced over the membrane, which attributes to a reduced shear rate and causes less momentum transfer. It can be seen from Fig.…”

Section: Resultsmentioning

confidence: 99%

Emulsified oily-waste water: pretreatment with inorganic salts and treatment using two indigenous membrane modules

2015

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The present study proposes the application of high sheared membrane modules in separating oil and water from their emulsified form. Moreover, the assessment was carried out with oil-in-water (o/w) emulsion after being treated with different electrolytes and the results from the treated feed to the membrane were compared with the untreated feed to the membrane. Two high sheared modules, namely, a turbine flow membrane module (TFMM) and a radial flow membrane module (RFMM), were compared to understand the superlative performance in removing oil from its o/w emulsion (either treated or untreated) using a 25 kDa polysulfone (PSf) membrane at different temperatures and pressures. It was observed that the permeate flux is 30-38% higher in all the cases with TFMM, depending on operating temperature and pressure. Furthermore, among the electrolytes used, 15% sodium sulfate (Na 2 SO 4 ) solution shows a maximum of 26% oil removal from emulsion, while TFMM shows a 45% higher permeate flux compared to RFMM with this pretreated feed compared to the module.

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Section: Resultsmentioning

confidence: 99%

Emulsified oily-waste water: pretreatment with inorganic salts and treatment using two indigenous membrane modules

2015

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“…Essentially, there are three types of emulsions which are water-in-oil (W/O), oil-in-water (O/W), and complex emulsions such as water-in-oil-in-water (W/O/W). The complex emulsion also known as a multiple emulsion [5]. The three types of emulsion are displayed in Figure 1.…”

Section: Types Of Emulsionsmentioning

confidence: 99%

Emulsion types, stability mechanisms and rheology: A review

Akbari

Nour

2018

ijirss

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Emulsions have been widely used in different industrial processes. The development and production of good quality emulsions depend on the knowledge of emulsion preparation, stability mechanisms and rheological studies. To form stable emulsions, an emulsifier is required to reduce the droplet sizes of the emulsions and enhance the emulsion stability. The purpose of this review article is to provide information about types of emulsions, stability mechanisms and rheological studies as well as factor affecting the stability of emulsions.

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“…Moreover solver of UMFPACK was used for solving symmetric problems. Some researchers have asserted the applicability and accuracy of UMFPACK for solving membrane equations (Razavi et al, , 2014Fasihi et al, 2012;Shirazian et al, 2012a,b,c,d,e;Rezakazemi et al, 2013aRezakazemi et al, ,b,c, 2011aRezakazemi et al, ,b, 2012Shirazian and Ashrafizadeh, 2013, 2010a,b, 2014, 2015aFadaei et al, 2011aFadaei et al, ,b, 2012Ghadiri et al, 2013b;Marjani et al, ,b,c, 2011aMarjani and Shirazian, 2010,b,c,d,e, 2012aHemmati et al, 2015;Hoshyargar et al, 2012;Khansary et al, 2015;Kohnehshahri et al, 2011;Moghadassi et al, 2011;Mohammadi et al, 2015;Moradi et al, 2013;Nosratinia et al, 2015;Pishnamazi et al, 2012;Ranjbar et al, 2013;Shirazian et al, 2011aShirazian et al, ,b, 2009Sohrabi et al, 2011a,b,c,d,e;Valavi et al, 2013). Triangular mesh elements used for the evaluation of gas behavior in the HFMC are illustrated in Fig.…”

Section: Numerical Proceduresmentioning

confidence: 99%

Numerical simulation of CO2 separation from gas mixtures in membrane modules: Effect of chemical absorbent

Razavi

Shirazian

Nazemian

2016

Arabian Journal of Chemistry

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In this study, a mathematical model is proposed for prediction of CO 2 absorption from N 2 /CO 2 mixture by potassium threonate in a hollow-fiber membrane contactor (HFMC). CFD technique using numerical method of finite element was applied to solve the governing equations of model. Effect of different factors on CO 2 absorption was analyzed and for investigation of absorbent type effect, functioning of potassium threonate was compared with diethanolamine (DEA). Axial and radial diffusion can be described with the two dimensional model established in this work. The obtained simulation results were compared with the reported experimental data to ensure accuracy of the model predictions. Comparison of model results with experimental data revealed that the developed model can well predict CO 2 capture by potassium threonate in HFMCs. Increment of absorbent flow rate and concentration eventuate in enhancement of CO 2 absorption. On the other hand, capture of CO 2 will be reduced with increment of gas flow rate. According to the model results, potassium threonate can be considered as a more efficient absorbent as compared with DEA. ª 2015 The Authors. Production and hosting by Elsevier B.V. on behalf of King Saud University. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).

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Prediction of Flow Behavior of Crude Oil-in-Water Emulsion through the Pipe by Using Rheological Properties

Cited by 13 publications

References 8 publications

Emulsified oily-waste water: pretreatment with inorganic salts and treatment using two indigenous membrane modules

Emulsified oily-waste water: pretreatment with inorganic salts and treatment using two indigenous membrane modules

Emulsion types, stability mechanisms and rheology: A review

Numerical simulation of CO2 separation from gas mixtures in membrane modules: Effect of chemical absorbent

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