Effect of surface acidity and basicity of aluminas on asphaltene adsorption and oxidation

Nassar, Nashaat N.; Hassan, Amjed; Pereira‐Almao, Pedro

doi:10.1016/j.jcis.2011.04.056

Cited by 135 publications

(132 citation statements)

References 37 publications

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“…This behavior is also confirmed by an earlier report by Nassar et al [56,57], which shows that nanoparticles have great affinity for asphaltenes-where alumina nanoparticles adsorbed asphaltenes more readily than micro porous alumina particles with similar acid content. Taborda et al…”

Section: Asphaltene Growth Inhibitionsupporting

confidence: 87%

“…A study by Franco et al [68] on the adsorption behavior of nanoparticles on heavy components in crude oil such as resins and asphaltenes shows that nanoparticles in contact with crude oil is capable of adsorbing resins and (or) asphaltenes, however, nanoparticles exhibit great selectivity and preferential affinity for adsorption of asphaltenes (n-C 7 ) compared to resins. This behavior is also confirmed by an earlier report by Nassar et al [56,57], which shows that nanoparticles have great affinity for asphaltenes-where alumina nanoparticles adsorbed asphaltenes more readily than micro porous alumina particles with similar acid content. Taborda et al [69] investigated nanoparticles effect on adsorption isotherms of n-C 7 asphaltenes at 298 K temperature in complex crude oil systems.…”

Section: Asphaltene Growth Inhibitionsupporting

confidence: 87%

“…The interactions between nanoparticles and the walls of the porous media can lead to adsorption if the force of attraction is higher than the repulsive with the reverse leading to desorption, however, adsorption and desorption is a dynamic balance process that is controlled by the total force existing between the porous media wall and nanoparticle. Blocking can occur if the nanoparticle diameter appears bigger than the size of the pore throat or due to particle to particle aggregation at the pore throat which can inhibit efficient transport of nanoparticle based fluids through the porous media [44,[54][55][56][57][58][59]. Generally, nanoparticles regardless of their small particle sizes are easily susceptible to aggregation in liquid suspensions, which promotes surface adsorption of neighboring particles or molecules.…”

Section: Nano-based Smart Fluidsmentioning

confidence: 99%

See 2 more Smart Citations

A Realistic Look at Nanostructured Material as an Innovative Approach for Enhanced Oil Recovery Process Upgrading

Nwidee¹,

Barifcani²,

Lebedev³

et al. 2018

Recent Insights in Petroleum Science and Engineering

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With the continuous rise in energy demand and decline in reserves, the Petroleum Industries are constantly in search of inventive and novel approaches to optimize hydrocarbon recovery despite several decades of deployment of conventional and enhanced strategies. This chapter presents an in-depth analysis of nanomaterial (nanoparticles), their unique characteristics and potentials in relation to smart field development, enhanced oil recovery (EOR) and CO 2 geosequestration. The particles surface functionalities, unique size dependent property, adsorption, and transport behavior were scrutinized. The materials precise role in enhancing reservoir parameters that influences rock-fluid interactions, and reservoir fluid distribution and displacement such as permeability, wettability, interfacial tension, and asphaltene aggregate growth inhibition were evaluated. The study argues that the application of nanoparticle based fluids as novel EOR approach offers more holistic measures, potentials, and opportunities than micro and macro particles and can stimulate the continuous evolution of EOR processes even under harsh reservoir conditions, thus, offering better benefits over conventional surface-active agents. We believe this study will significantly impact the understanding of EOR with respect to nanoparticles, which is crucial for augmenting reservoir processes and to accelerate the realization of nanoparticles for EOR and CO 2 sequestration processes at industrial scale.Keywords: EOR, nanoparticles, adsorption, Asphaltene, wettability, IFT, permeability, viscosity, CO 2 © 2018 The Author(s). Licensee InTech. This chapter is distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. OverviewIt is a fact that the period of cheap hydrocarbon recovery is waning as hydrocarbons are currently been explored in remote regions under harsh reservoir conditions. The accessible hydrocarbon resources are constantly declining with a corresponding increase in energy demand which invariably contributes to the price irregularities in the oil and gas industry. Globally, the growth in energy demand appears to be predominant amidst feasible unconventional energy options (renewable energy). Unarguably, newer energy sources, such as nuclear, wind, geo-thermal and solar are effective measures for addressing energy shortage. However, they are yet to be ample alternatives for substituting the role of oil in meeting the ever-rising energy demand. To date, these demands are currently being substantiated via hydrocarbon sources especially petroleum -oil is still the most valuable product with great global economic impact. Currently, diverse conventional strategies (waterflooding), and enhanced methods (use of chemicals, gases, and microbes) are been deployed in oil fields, regardless, these challenges persist. More efficient, yet cost-effective, environmenta...

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Section: Asphaltene Growth Inhibitionsupporting

confidence: 87%

Section: Asphaltene Growth Inhibitionsupporting

confidence: 87%

Section: Nano-based Smart Fluidsmentioning

confidence: 99%

See 1 more Smart Citation

A Realistic Look at Nanostructured Material as an Innovative Approach for Enhanced Oil Recovery Process Upgrading

Nwidee¹,

Barifcani²,

Lebedev³

et al. 2018

Recent Insights in Petroleum Science and Engineering

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“…1). Carboxylic acids have strong affinity toward LASs, owing to their -COOH groups, and the adsorption of this functional group is usually very strong on alumina (Nassar et al 2011). The coexistence of citric acid and dithionite showed a much stronger affinity of LASs toward citric acid and resulted in the inhibition of dithionite affinity to the aluminas, consequently suppressing the propachlor transformation as shown in Fig.…”

Section: Discussionmentioning

confidence: 99%

“…However, aluminum ions on the edge faces (100 and 110 planes) of alumina may have unsatisfied positive charge, which means the surface Al sites can act as strong Lewis acid sites (LASs). The solid acid sites on the surface of alumina are extremely active and are the main reason for alumina's wide usage as an adsorbent and catalyst (Kasprzyk-Hordern 2004;Nassar et al 2011). As a result, aluminum-based minerals may affect the transformation processes of chloroacetanilide herbicides in environment, especially when paired with reactive compounds such as dithionite as a decontamination strategy.…”

Section: Introductionmentioning

confidence: 99%

Dechlorinating transformation of propachlor through nucleophilic substitution by dithionite on the surface of alumina

et al. 2012

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Purpose The aim of this study was to evaluate the roles of aluminum-based minerals, especially their surface Lewis acid sites (LASs), on the transformation and fate of chloroacetanilide herbicide contaminants when nucleophilic reagents are present. Materials and methods Batch experiments were used to study propachlor transformation processes under different reaction conditions. The surface bonding of aluminas before and after interacting with propachlor and dithionite were characterized by Fourier transform infrared (FTIR) spectra. The LASs on different aluminas, acting as the key role for accelerating the propachlor transformation, were analyzed by pyridine adsorption/FTIR spectroscopic technique. Results and discussion Rates of dithionite-initiated propachlor dechlorination were increased in the presence of aluminas. Transformation efficiencies of propachlor on different aluminas were found to be as γ-Al 2 O 3 >γ-AlOOH>α-Al 2 O 3 . A higher reaction temperature, higher pH, and higher alumina dosage can further increase the propachlor dechlorination rate.The addition of citric acid may block the active sites on alumina and reduce propachlor transformation by dithionite. FTIR and pyridine adsorption/diffuse reflectance Fourier transform infrared spectroscopy indicated that Al-S and Al-O bonds on the LASs of alumna play a key role in accelerating propachlor transformation. Conclusions LASs on alumina surfaces can effectively accelerate the propachlor transformation by dithionite. The strong electron accepting ability of LASs gives dithionite a favorable affinity to form surface sulfur compounds, which are stronger reductants and nucleophilic reagents for propachlor dechlorination. The intensities of LASs on alumina surfaces can be used to control the rate of propachlor transformation by dithionite.

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Nanoparticles for Heavy Oil In Situ Upgrading

Suwaid

Ситнов

Al‐Muntaser

et al. 2023

Catalytic In‐Situ Upgrading of Heavy and Extra‐Heavy Crude Oils

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Effect of surface acidity and basicity of aluminas on asphaltene adsorption and oxidation

Cited by 135 publications

References 37 publications

A Realistic Look at Nanostructured Material as an Innovative Approach for Enhanced Oil Recovery Process Upgrading

A Realistic Look at Nanostructured Material as an Innovative Approach for Enhanced Oil Recovery Process Upgrading

Dechlorinating transformation of propachlor through nucleophilic substitution by dithionite on the surface of alumina

Nanoparticles for Heavy Oil In Situ Upgrading

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