TiO 2 /SiO 2 nanofluids as novel inhibitors for the stability of asphaltene particles in crude oil: Mechanistic understanding, screening, modeling, and optimization

Mohammadi, Majid; Dadvar, Mitra; Dabir, Bahram

doi:10.1016/j.molliq.2017.05.014

Cited by 89 publications

(31 citation statements)

References 62 publications

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“…Many studies were carried out to demonstrate the effect of pH level on the stability of nanofluids [161][162][163][164][165][166]. Witharana et al [75] examined the settling and aggregation behaviour of alumina (Al 2 O 3 )/H 2 O nanofluid of 0.5 wt%, 46 nm particle size, and of spherical particle shape at pH values of 6.3 and 7.8.…”

Section: Ph Control Of Nanofluidsmentioning

confidence: 99%

A Review on Nanofluids: Fabrication, Stability, and Thermophysical Properties

Ali

Teixeira

Addali

2018

Journal of Nanomaterials

310

178

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Nanofluids have been receiving great attention in recent years due to their potential usage, not only as an enhanced thermophysical heat transfer fluid but also because of their great importance in applications such as drug delivery and oil recovery. Nevertheless, there are some challenges that need to be solved before nanofluids can become commercially acceptable. The main challenges of nanofluids are their stability and operational performance. Nanofluids stability is significantly important in order to maintain their thermophysical properties after fabrication for a long period of time. Therefore, enhancing nanofluids stability and understanding nanofluid behaviour are part of the chain needed to commercialise such type of advanced fluids. In this context, the aim of this article is to summarise the current progress on the study of nanofluids, such as the fabrication procedures, stability evaluation mechanism, stability enhancement procedures, nanofluids thermophysical properties, and current commercialisation challenges. Finally, the article identifies some possible opportunities for future research that can bridge the gap between in-lab research and commercialisation of nanofluids.

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Section: Ph Control Of Nanofluidsmentioning

confidence: 99%

A Review on Nanofluids: Fabrication, Stability, and Thermophysical Properties

Ali

Teixeira

Addali

2018

Journal of Nanomaterials

310

178

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“…[ 9 ] Changes in reservoir conditions, including temperature, pressure, and oil composition, are parameters that can lead to high asphaltene precipitation in a reservoir. [ 10 ] Asphaltene deposition is significant in many domains of the oil industry, such as alteration of reservoir rock wettability, from water‐wet to oil‐wet, due to its potential to be adsorbed on reservoir rock [ 11,12 ] ; plugging flow lines [ 13 ] ; and refinery catalyst deactivation. [ 14 ]…”

Section: Introductionmentioning

confidence: 99%

Investigation of the interaction between nanoparticles, asphaltenes, and silica surfaces by real‐time quartz crystal microbalance with dissipation

Montoya

Jaiswal²,

Nassar

2021

Can J Chem Eng

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The effects of nanofluids as wettability alternators and inhibitors of asphaltene precipitation and formation damage were studied in this work. Silicate‐based nanoparticles with different chemical surfaces, named neutral (NN), basic (BN), and acidic (AN), dispersed in NaCl brine were tested to observe their interactions with n‐C7 asphaltenes and silica surfaces using the quartz crystal microbalance with dissipation (QCM‐D). The properties of nanoparticles were characterized using XRD, BET, TPD, and HRTEM. Heptol 70 asphaltenes, pre‐adsorbed/deposited on SiO2 sensors were used for studying the concentration effect of 10 nm‐sized BN‐based nanofluids, which exhibited a decreasing trend in frequency shift in the following order 1 > 10 > 25 mg/L. For toluene asphaltenes, the frequency shifts in BN nanofluids changed with the following order of concentration 100 > 150 > 50 > 25 mg/L. The effect of particle size on frequency shift, tested for toluene asphaltenes demonstrated the following order 10 > 99 > 45 > 20 nm BN. A cycle injection test between asphaltenes and a nanofluid solution was performed to evaluate the effect of the nanoparticles in a sequence injection. Wettability alteration was assessed before and after nanofluid injection using contact angle measurements, which resulted in a decrease after nanofluid injection. In addition, atomic force microscopy (AFM) measurements were performed on some of the samples to support the findings. The QSense data analysis software Q‐Tools was used to determine the thickness of the layer before and after the injection of nanofluids; the trend was similar to the change in frequency for all parameters. Finally, brine‐based nanofluids with 10 nm‐sized BN at 1 and 100 mg/L were more effective in treating the deposited asphaltenes in heptol 70 and toluene, respectively.

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“…TiO2/SiO2 nanofluids as novel inhibitors for the stability of asphaltene particles in crude oil: Mechanistic understanding, screening, modeling, and optimization. [4]. Thermal Conductivity of Suspensions Containing Nanosized SiC Particles [5].…”

Section: Introductionmentioning

confidence: 99%

Multi-objective Optimization to Increase Nusselt Number and Reduce Friction Coefficient of Water/Carbon Nanotubes via NSGA II using Response Surface Methodology

Petrudi

Fathi

Rahmani

2020

J. Mod. Sim. Mater.

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Heat transfer science is one of the most important and most applied engineering sciences, with the importance of energy management and energy conservation being doubled. Because of their properties, nanofluids have been widely used in various industries, making them particularly important to study. In this paper, the Nusselt number and coefficient of friction with volume fraction ranging from 0 to 0.1 at approximately Reynolds numbers of 200 to 5000 are studied experimentally. Higher thermal conductivity, better stability, lower pressure drop was observed using nanoparticles of solid particles. NSGA II algorithm was used to maximize Nusselt number and minimum friction coefficient by changing temperature and volume fraction of nanoparticles. To obtain Nusselt number and friction coefficient based on the temperature and volume fraction of the nanoparticles, the experimental data response surface methodology was used and with increasing Reynolds number, the Nusselt number increased and the friction coefficient decreased. In order to evaluate the objective functions in the optimization, the response surface methodology is attached to the optimization algorithm. At the end, the Pareto Front and its corresponding optimal points are presented.

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TiO 2 /SiO 2 nanofluids as novel inhibitors for the stability of asphaltene particles in crude oil: Mechanistic understanding, screening, modeling, and optimization

Cited by 89 publications

References 62 publications

A Review on Nanofluids: Fabrication, Stability, and Thermophysical Properties

A Review on Nanofluids: Fabrication, Stability, and Thermophysical Properties

Investigation of the interaction between nanoparticles, asphaltenes, and silica surfaces by real‐time quartz crystal microbalance with dissipation

Multi-objective Optimization to Increase Nusselt Number and Reduce Friction Coefficient of Water/Carbon Nanotubes via NSGA II using Response Surface Methodology

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