Matches in SemOpenAlex for { <https://semopenalex.org/work/W2331241467> ?p ?o ?g. }
- W2331241467 endingPage "14146" @default.
- W2331241467 startingPage "14135" @default.
- W2331241467 abstract "The effects of surface acidity and basicity of metal oxide nanoparticles on the thermodynamics of asphaltene adsorption were studied. Three different categories of metal oxides/salts with acidic (WO3 and NiO), amphoteric (Fe2O3 and ZrO2), and basic (MgO and CaCO3) surfaces were synthesized, and their textural, structural, and acid-base properties were characterized. Asphaltenes were extracted from a dead oil sample and characterized by X-ray powder diffraction and Fourier transform infrared spectroscopy. The acid and base numbers of the asphaltenes were measured. The nanoparticles were added to the asphaltene-toluene solutions, and the amount of adsorbed asphaltene was obtained through centrifugation followed by UV-vis spectroscopy of the supernatant liquid and temperature-programmed oxidation analysis of the precipitated solid. The concentrations of organic acid and base groups in the asphaltenes are 2.75 and 12.34 mg of KOH/g, respectively, indicating that the asphaltenes are more basic in nature. Isotherms of the asphaltene adsorption onto the six metal oxides/salts fit the Langmuir model closely. The asphaltene adsorption capacity of the nanoparticles is 1.23-3.67 mg/m(2) and decreases in the order of NiO > Fe2O3 > WO3 > MgO > CaCO3 > ZrO2, concomitant with the synergetic effects of acidity and the net charge of the surfaces. High-resolution transmission electron microscopy illustrates that the asphaltenes are spread out over the surfaces with no short-range/long-range order. The adsorption of the asphaltenes onto the six samples is exothermic and spontaneous with the Gibbs energy change of -27.80 to -28.79 kJ/mol at 25 °C. The absolute value of the enthalpy change of the adsorption is calculated to be within the range of 5-20 kJ/mol. Acid-base interaction and electrostatic attraction seem to be the dominant forces contributing to the adsorption of the asphaltenes onto the metal oxide/salt surfaces." @default.
- W2331241467 created "2016-06-24" @default.
- W2331241467 creator A5004877197 @default.
- W2331241467 creator A5009339250 @default.
- W2331241467 creator A5019200233 @default.
- W2331241467 creator A5058894464 @default.
- W2331241467 date "2013-11-05" @default.
- W2331241467 modified "2023-10-18" @default.
- W2331241467 title "Asphaltene Adsorption onto Acidic/Basic Metal Oxide Nanoparticles toward in Situ Upgrading of Reservoir Oils by Nanotechnology" @default.
- W2331241467 cites W1963638809 @default.
- W2331241467 cites W1973696072 @default.
- W2331241467 cites W1976482634 @default.
- W2331241467 cites W1978215404 @default.
- W2331241467 cites W1986172525 @default.
- W2331241467 cites W1992406959 @default.
- W2331241467 cites W1994616350 @default.
- W2331241467 cites W1997717089 @default.
- W2331241467 cites W1999849033 @default.
- W2331241467 cites W2008599912 @default.
- W2331241467 cites W2017333141 @default.
- W2331241467 cites W2017878042 @default.
- W2331241467 cites W2020903034 @default.
- W2331241467 cites W2030403065 @default.
- W2331241467 cites W2042702500 @default.
- W2331241467 cites W2044546866 @default.
- W2331241467 cites W2047555677 @default.
- W2331241467 cites W2053718838 @default.
- W2331241467 cites W2058770440 @default.
- W2331241467 cites W2063144487 @default.
- W2331241467 cites W2066431579 @default.
- W2331241467 cites W2076103303 @default.
- W2331241467 cites W2078072735 @default.
- W2331241467 cites W2078249801 @default.
- W2331241467 cites W2079375910 @default.
- W2331241467 cites W2085428047 @default.
- W2331241467 cites W2145856956 @default.
- W2331241467 cites W2154674333 @default.
- W2331241467 cites W2166894647 @default.
- W2331241467 cites W2314283802 @default.
- W2331241467 cites W2316432110 @default.
- W2331241467 cites W2316808843 @default.
- W2331241467 cites W2318274445 @default.
- W2331241467 cites W2319023244 @default.
- W2331241467 cites W2326730900 @default.
- W2331241467 cites W2334066005 @default.
- W2331241467 cites W2334260067 @default.
- W2331241467 doi "https://doi.org/10.1021/la402979h" @default.
- W2331241467 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/24131407" @default.
- W2331241467 hasPublicationYear "2013" @default.
- W2331241467 type Work @default.
- W2331241467 sameAs 2331241467 @default.
- W2331241467 citedByCount "157" @default.
- W2331241467 countsByYear W23312414672014 @default.
- W2331241467 countsByYear W23312414672015 @default.
- W2331241467 countsByYear W23312414672016 @default.
- W2331241467 countsByYear W23312414672017 @default.
- W2331241467 countsByYear W23312414672018 @default.
- W2331241467 countsByYear W23312414672019 @default.
- W2331241467 countsByYear W23312414672020 @default.
- W2331241467 countsByYear W23312414672021 @default.
- W2331241467 countsByYear W23312414672022 @default.
- W2331241467 countsByYear W23312414672023 @default.
- W2331241467 crossrefType "journal-article" @default.
- W2331241467 hasAuthorship W2331241467A5004877197 @default.
- W2331241467 hasAuthorship W2331241467A5009339250 @default.
- W2331241467 hasAuthorship W2331241467A5019200233 @default.
- W2331241467 hasAuthorship W2331241467A5058894464 @default.
- W2331241467 hasConcept C127413603 @default.
- W2331241467 hasConcept C150394285 @default.
- W2331241467 hasConcept C155672457 @default.
- W2331241467 hasConcept C160892712 @default.
- W2331241467 hasConcept C178790620 @default.
- W2331241467 hasConcept C179104552 @default.
- W2331241467 hasConcept C185592680 @default.
- W2331241467 hasConcept C2779851234 @default.
- W2331241467 hasConcept C42360764 @default.
- W2331241467 hasConcept C544153396 @default.
- W2331241467 hasConcept C65324659 @default.
- W2331241467 hasConceptScore W2331241467C127413603 @default.
- W2331241467 hasConceptScore W2331241467C150394285 @default.
- W2331241467 hasConceptScore W2331241467C155672457 @default.
- W2331241467 hasConceptScore W2331241467C160892712 @default.
- W2331241467 hasConceptScore W2331241467C178790620 @default.
- W2331241467 hasConceptScore W2331241467C179104552 @default.
- W2331241467 hasConceptScore W2331241467C185592680 @default.
- W2331241467 hasConceptScore W2331241467C2779851234 @default.
- W2331241467 hasConceptScore W2331241467C42360764 @default.
- W2331241467 hasConceptScore W2331241467C544153396 @default.
- W2331241467 hasConceptScore W2331241467C65324659 @default.
- W2331241467 hasIssue "46" @default.
- W2331241467 hasLocation W23312414671 @default.
- W2331241467 hasLocation W23312414672 @default.
- W2331241467 hasOpenAccess W2331241467 @default.
- W2331241467 hasPrimaryLocation W23312414671 @default.
- W2331241467 hasRelatedWork W186347566 @default.
- W2331241467 hasRelatedWork W1968566845 @default.
- W2331241467 hasRelatedWork W2046099303 @default.
- W2331241467 hasRelatedWork W2074233838 @default.