Effect of Textural Properties and Surface Chemical Nature of Silica Nanoparticles from Different Silicon Sources on the Viscosity Reduction of Heavy Crude Oil
Daniel Montes, Jonathan Henao, Esteban A. Taborda, Jaime Gallego, Farid B. Cortés, Camilo A. Franco
Abstract
and showed that the trend of the degree of viscosity reduction (DVR) was CSN > SNT > SNSS > SNRH with the highest value yielding at 30%. The results of DVR are in accordance with the nanoparticles' adsorptive capacity as higher values were obtained with the material that leads to a higher amount of adsorbed asphaltenes. Also, the oxygen amount related to silanol groups, estimated by the XPS analysis, showed a direct relation regarding adsorption capacity and further HO viscosity reduction.
Topics & Concepts
AsphalteneNanoparticleFourier transform infrared spectroscopyX-ray photoelectron spectroscopyMaterials scienceChemical engineeringDynamic light scatteringSiliconPhysisorptionSilanolFumed silicaNanomaterialsHigh-resolution transmission electron microscopySurface roughnessAdsorptionTransmission electron microscopyNanotechnologyChemistryOrganic chemistryComposite materialCatalysisMetallurgyEngineeringPetroleum Processing and AnalysisEnhanced Oil Recovery TechniquesHydrocarbon exploration and reservoir analysis