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Modeling Asphaltene Precipitation-Part II: Comparative Study for Asphaltene Precipitation Curve Prediction Methods
Published 2025-01-01Subjects: “…Asphaltene onset pressure…”
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Interaction and Adsorption of Hydrophobically Modified Polyacrylamide on Silica and Asphaltene Surfaces
Published 2019-01-01“…Our study indicates that HMPAM polymer has strong interaction with both silica and asphaltene. The adhesion force of HMPAM on silica was stronger than that on asphaltene surface. …”
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Molecular Dynamics Simulation to Investigate the Interaction of Asphaltene and Oxide in Aggregate
Published 2016-01-01“…The molecular models are established for asphaltene and the four oxides, respectively, and the molecular dynamics (MD) simulation was conducted for the four kinds of asphaltene-oxide system at different temperatures. …”
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The Removal of Phenol and Its Derivatives from Aqueous Solutions by Adsorption on Petroleum Asphaltene
Published 2013-01-01“…This research describes the adsorption of phenol and o-substituted phenols and xylenol isomers on petroleum asphaltenes from aqueous solution. The results revealed that the adsorption equilibrium data were best fitted with the generalized and Freundlich isotherms. …”
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Structural Characterisation of Asphaltenes during Residue Hydrotreatment with Light Cycle Oil as an Additive
Published 2015-01-01“…The average structural parameters of these asphaltenes, obtained from a combined method of element analysis, average molecular weight, X-ray diffraction, and NMR, demonstrate that, after hydrotreatment, the aromatic cores of the asphaltenes become more compact and smaller whereas the peripheral alkyl branches are decreased in number and shortened. …”
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Assessing the effect of deposited bitumen or asphaltenes on the nitrification process in the north saskatchewan river sediment
Published 2025-04-01“…This study aimed to (1) examine the effects of deposited bitumen (Bit) and asphaltene (Asp) on the North Saskatchewan River (NSR) water quality, focusing on organic carbon and nitrogen; (2) assess the impact of Bit or Asp on sedimentary nitrification; and (3) explore the response of the microbial community to Bit or Asp. …”
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Correlation between Asphaltene Stability in n-Heptane and Crude Oil Composition Revealed with Chemical Imaging
Published 2014-04-01“…For each sample, the dynamics of asphaltene precipitation has been observed by applying this chemical imaging method. …”
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Experimental study on the simultaneous effect of smart water and clay particles on the stability of asphaltene molecule and emulsion phase
Published 2025-01-01Subjects: Get full text
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Uncovering the Hydrocracking Efficiency of Iron-Based Catalysts: A Novel Approach to Asphaltene Transformation in Iranian Heavy Oil
Published 2024-06-01Subjects: “…asphaltene…”
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Effect of CO2 Huff and Puff Rounds on Crude Oil Properties
Published 2023-01-01“…At the same time, the content of paraffin and gum asphaltene in the produced crude oil is reduced. For oil wells with multiple rounds of CO2 huff and puff, colloidal asphaltene precipitation inhibitor and scavenger should be considered to reduce the impact of colloidal asphaltene on formation permeability and liquid supply capacity.…”
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Properties and Components of Recycled Engine Oil Bottom Rejuvenated Asphalt and Its Grey Relationship Analysis
Published 2019-01-01“…Therefore, the asphaltene content should be strictly controlled during the addition of REOB to rejuvenate aged asphalt.…”
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Influence of Aggregate and Asphalt Type on the Bond Strength between Asphalt and Aggregates and Its Self-Healing Properties
Published 2022-01-01“…Third, the asphalt was extracted into aromatic, saturated, colloidal, and asphaltene by an asphalt component separation test, and the bond strength between each asphalt component and aggregate was tested. …”
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Physical Properties, Chemical Structure, and Microstructure of Thermoplastic Polyurethane Recycled Material-Modified Asphalt
Published 2025-01-01“…An increase in the shearing/activation temperature and time increased the hydrogen bond content in the modified asphalt due to the rearrangement of the polyurethane’s molecular structure and the hydrogen bonds formed by the asphaltene and polyurethane molecules. Slender–irregular TPRM and “sea–island” and hilly and gulley structures were found in the modified asphalt matrix.…”
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Synthesis and Application of a Spirocompound as Clean Viscosity-Reducer for Crude Oil
Published 2016-01-01“…The multiphenyl groups can interact with asphaltene by π-π stacking, and the spirostructure can fix the stacking in different direction, which can prevent the agglomeration of wax crystals.…”
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Study on Ultraviolet Aging Performance of Composite Modified Asphalt Based on Rheological Properties and Molecular Dynamics Simulation
Published 2022-01-01“…When unaged, the modified asphalt has more asphaltenes than the matrix asphalt, and the change after UV aging is less than the matrix asphalt. …”
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Performance of Rejuvenated Asphalt and Mixtures with Waste Engine Oil Bottom and Liquid Styrene-Butadiene Rubber
Published 2022-01-01“…The AFM test showed that WEOB-S effectively dispersed the agglomerated bee-like wax crystals or macromolecular asphaltene structures in the aged asphalt, decreased the number and crests of the bee-like structures, and improved the microscopic uniformity, thus obtaining better macroscopic physical properties. …”
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Experimental Study on the Oil Recovery Performance of CO2 Huff-and-Puff Process in Fractured Tight Oil Reservoirs
Published 2022-01-01“…The effects of fracture length, soaking time, depressurization method, and asphaltene precipitation on the oil recovery performance of CO2 huff-and-puff process were evaluated, respectively. …”
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Influence of PPA on the Short-Term Antiaging Performance of Asphalt
Published 2021-01-01“…The component fractions show that PPA will cause the asphalt to transform from sol to gel and the main function of PPA in retarding asphalt aging is the dispersion of the agglomerates of asphaltene micelles by PPA.…”
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Application of synthesized Fe3O4@Gelatin nanoparticles on interfacial properties and enhanced oil recovery
Published 2025-01-01“…They enhance oil recovery by improving EOR mechanisms including decreasing interfacial tension (IFT), wettability alteration to water-wet, and preventing asphaltene precipitation. In this study, Fe3O4@Gelatin NPs were synthesized by a convenient and single-step method and then investigated for EOR purposes for the first time. …”
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