Kinetic and thermodynamic equilibrium of asphaltenes sorption onto nanoparticles of nickel oxide supported on nanoparticulated alumina

Franco, Camilo A.; Patiño, Edgar J.; Benjumea, Pedro; Ruiz, Marco A.; Cortés, Farid B.

doi:10.1016/j.fuel.2012.06.022

Cited by 120 publications

(181 citation statements)

References 17 publications

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“…However, at the concentrations higher than 10 g/L nanoparticles in solution, the adsorption efficiency did not change too much. There are several works in the literature [11,14,19,26,36] concerning the asphaltene adsorption by using nanoparticles with the concentration of 10 (g/L). Therefore, the proper amount of zeolite beta nanoparticles was selected 10 g/L.…”

Section: Equilibrium Adsorption Experiments Resultsmentioning

confidence: 99%

“…The amount of adsorbed asphaltene onto nanoparticles strongly depends on the type, surface chemistry of the nanoparticles and the kind of the interaction force between asphaltene and nanoparticles [11,12]. The asphaltene surface charge, Van der Waals force and acidbase interaction between surface of nanoparticles and polar asphaltene particles are different kinds of forces for asphaltene adsorption onto nanoparticles [11,16,19].…”

Section: Introductionmentioning

confidence: 99%

“…Most of the previous studies showed that the nanoparticles are good choices for adsorption and catalytic oxidation of asphaltene in crude oil upgrading process [11,13,19] while, limited researches have been carried out on using nanoparticles in porous media for asphaltene adsorption and consequently reduction of asphaltene deposition through oil flooding [17,18,20].…”

Section: Introductionmentioning

confidence: 99%

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Investigation of Asphaltene Adsorption onto Zeolite Beta Nanoparticles to Reduce Asphaltene Deposition in a Silica Sand Pack

Kashefi

Lotfollahi

Shahrabadi³

2018

Oil & Gas Science and Technology - Rev. IFP Energies nouvel

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-Zeolite beta nanoparticles were used as a new asphaltene adsorbent for reducing asphaltene deposition during fluid injection into a silica sand pack. At first, the asphaltene adsorption efficiency and capacity of zeolite beta nanoparticles were determined by UV-Vis spectrophotometer. It was found that the proper concentration of nanoparticles for asphaltene adsorption was 10 g/L and the maximum asphaltene adsorption onto zeolite beta was 1.98 mg/m 2 . Second, two dynamic experiments including co-injection of crude oil and n-heptane (as an asphaltene precipitant) with and without use of zeolite beta nanoparticles in the sand pack was carried out. The results showed that the use of zeolite beta nanoparticles increased the permeability ratio and outlet fluid's asphaltene content about 22% and 40% compared to without use of nanoparticles, respectively. Moreover, a model based on monolayer asphaltene adsorption onto nanoparticles and asphaltene deposition mechanisms including surface deposition, entrainment and pore throat plugging was developed to determine formation damage during co-injection of crude oil and n-heptane into the sand pack. The proposed model presented good prediction of permeability and porosity ratios with AAD% of 1.07 and 0.07, respectively.

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Section: Equilibrium Adsorption Experiments Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Investigation of Asphaltene Adsorption onto Zeolite Beta Nanoparticles to Reduce Asphaltene Deposition in a Silica Sand Pack

Kashefi

Lotfollahi

Shahrabadi³

2018

Oil & Gas Science and Technology - Rev. IFP Energies nouvel

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“…A calibration curve of UV absorbance against crude concentration was constructed with solutions at different concentrations using a GENESYS 10S spectrophotometer (Thermo Scientific) at 310 nm. Synthetic brine and deionized water were used as reference in the respective absorbance calibration curve (Franco et al 2012a). Approximately 100 mg of nanoparticles were added to each emulsion sample (10 ml).…”

Section: Adsorption Experimentsmentioning

confidence: 99%

“…Equations (2) and (3) describe, respectively, the pseudo-first-and pseudo-second-order models used to fit experimental data (Cortés et al 2012;Franco et al 2012b) …”

Section: Pseudo-first-and Pseudo-second-order Modelsmentioning

confidence: 99%

Water Remediation Based on Oil Adsorption Using Nanosilicates Functionalized with a Petroleum Vacuum Residue

Franco

Martínez

Benjumea

et al. 2014

Adsorption Science & Technology

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Discharging water from oilfields has become one of the major environmental issues related to the oil industry. This work presents a study on the adsorption of oil onto nanoparticles of hydrophobic silica and silica nanoparticles functionalized with a petroleum vacuum residue (VR) at 2 and 4 wt% to reduce the amount of oil in oil-brine and oil-water emulsions at different pH values (5, 7 and 9). The initial concentration of crude oil in water ranged from 500 to 1500 mg/l. The change in oil concentration after adsorption was determined using a UV-VIS spectrophotometer. Experimental data on the adsorption kinetics were fitted to pseudo-first-order and pseudo-second-order models, with better results being obtained for the latter. Results of the study showed 100% oil removal for all the systems studied and a better performance was achieved for oil-saltwater emulsions than the experiments performed using oil-saltwater emulsions. In addition, the adsorption equilibrium was achieved faster for the oil-water emulsion using the salty medium. Adsorption velocity was higher for neutral and basic systems compared with acid ones, and it was improved by increasing the amount of VR on silica surface.

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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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Kinetic and thermodynamic equilibrium of asphaltenes sorption onto nanoparticles of nickel oxide supported on nanoparticulated alumina

Cited by 120 publications

References 17 publications

Investigation of Asphaltene Adsorption onto Zeolite Beta Nanoparticles to Reduce Asphaltene Deposition in a Silica Sand Pack

Investigation of Asphaltene Adsorption onto Zeolite Beta Nanoparticles to Reduce Asphaltene Deposition in a Silica Sand Pack

Water Remediation Based on Oil Adsorption Using Nanosilicates Functionalized with a Petroleum Vacuum Residue

Nanoparticles for Heavy Oil In Situ Upgrading

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