Comparison of Hansen Solubility Parameter of Asphaltenes Extracted from Bitumen Produced in Different Geographical Regions

The Hansen solubility parameters (HSPs) of asphaltenes extracted from oil sand bitumen samples produced at Athabasca in Canada and also from a vacuum residue fraction (VR) produced in the Middle East were determined by the Hansen solubility sphere method. For calculation of HSPs, the solubilities of...

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Published inEnergy & fuels Vol. 28; no. 2; pp. 891 - 897
Main Authors Sato, Takashi, Araki, Sadao, Morimoto, Masato, Tanaka, Ryuzo, Yamamoto, Hideki
Format Journal Article
LanguageEnglish
Published Washington, DC American Chemical Society 20.02.2014
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Abstract The Hansen solubility parameters (HSPs) of asphaltenes extracted from oil sand bitumen samples produced at Athabasca in Canada and also from a vacuum residue fraction (VR) produced in the Middle East were determined by the Hansen solubility sphere method. For calculation of HSPs, the solubilities of asphaltenes were determined using a dynamic light scattering (DLS) method by dissolving or dispersing the asphaltenes in various solvents and measuring the particle size distributions thereof. The particle diameters of asphaltenes in good solvents were lower than its detection limit (<1 nm). It was demonstrated in the present study that asphaltenes differing in elemental composition had different HSP values corresponding to dispersion, dipole interaction, and hydrogen-bonding forces (δd, δp, and δh, respectively). Experimental results suggested that the differences in HSP values of the asphaltenes were influenced by the H/C ratio, oxygen content, and average asphaltene molecular weight.
AbstractList The Hansen solubility parameters (HSPs) of asphaltenes extracted from oil sand bitumen samples produced at Athabasca in Canada and also from a vacuum residue fraction (VR) produced in the Middle East were determined by the Hansen solubility sphere method. For calculation of HSPs, the solubilities of asphaltenes were determined using a dynamic light scattering (DLS) method by dissolving or dispersing the asphaltenes in various solvents and measuring the particle size distributions thereof. The particle diameters of asphaltenes in good solvents were lower than its detection limit (<1 nm). It was demonstrated in the present study that asphaltenes differing in elemental composition had different HSP values corresponding to dispersion, dipole interaction, and hydrogen-bonding forces (δd, δₚ, and δₕ, respectively). Experimental results suggested that the differences in HSP values of the asphaltenes were influenced by the H/C ratio, oxygen content, and average asphaltene molecular weight.
The Hansen solubility parameters (HSPs) of asphaltenes extracted from oil sand bitumen samples produced at Athabasca in Canada and also from a vacuum residue fraction (VR) produced in the Middle East were determined by the Hansen solubility sphere method. For calculation of HSPs, the solubilities of asphaltenes were determined using a dynamic light scattering (DLS) method by dissolving or dispersing the asphaltenes in various solvents and measuring the particle size distributions thereof. The particle diameters of asphaltenes in good solvents were lower than its detection limit (<1 nm). It was demonstrated in the present study that asphaltenes differing in elemental composition had different HSP values corresponding to dispersion, dipole interaction, and hydrogen-bonding forces (δd, δp, and δh, respectively). Experimental results suggested that the differences in HSP values of the asphaltenes were influenced by the H/C ratio, oxygen content, and average asphaltene molecular weight.
The Hansen solubility parameters (HSPs) of asphaltenes extracted from oil sand bitumen samples produced at Athabasca in Canada and also from a vacuum residue fraction (VR) produced in the Middle East were determined by the Hansen solubility sphere method. For calculation of HSPs, the solubilities of asphaltenes were determined using a dynamic light scattering (DLS) method by dissolving or dispersing the asphaltenes in various solvents and measuring the particle size distributions thereof. The particle diameters of asphaltenes in good solvents were lower than its detection limit (<1 nm). It was demonstrated in the present study that asphaltenes differing in elemental composition had different HSP values corresponding to dispersion, dipole interaction, and hydrogen-bonding forces ( delta sub(d), delta sub(p), and delta sub(h), respectively). Experimental results suggested that the differences in HSP values of the asphaltenes were influenced by the H/C ratio, oxygen content, and average asphaltene molecular weight.
Author Yamamoto, Hideki
Araki, Sadao
Sato, Takashi
Tanaka, Ryuzo
Morimoto, Masato
AuthorAffiliation Department of Chemical, Energy and Environmental Engineering Faculty of Environmental and Urban Engineering
Japan Petroleum Energy Center
Kansai University
National Institute of Advanced Industrial Science and Technology
AuthorAffiliation_xml – name: Kansai University
– name: Japan Petroleum Energy Center
– name: Department of Chemical, Energy and Environmental Engineering Faculty of Environmental and Urban Engineering
– name: National Institute of Advanced Industrial Science and Technology
Author_xml – sequence: 1
  givenname: Takashi
  surname: Sato
  fullname: Sato, Takashi
– sequence: 2
  givenname: Sadao
  surname: Araki
  fullname: Araki, Sadao
– sequence: 3
  givenname: Masato
  surname: Morimoto
  fullname: Morimoto, Masato
– sequence: 4
  givenname: Ryuzo
  surname: Tanaka
  fullname: Tanaka, Ryuzo
– sequence: 5
  givenname: Hideki
  surname: Yamamoto
  fullname: Yamamoto, Hideki
  email: yhideki@kansai-u.ac.jp
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Snippet The Hansen solubility parameters (HSPs) of asphaltenes extracted from oil sand bitumen samples produced at Athabasca in Canada and also from a vacuum residue...
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SubjectTerms Applied sciences
Asphaltenes
bitumen
Bitumens
Canada
detection limit
Dispersing
Dispersions
elemental composition
Energy
Energy. Thermal use of fuels
Exact sciences and technology
Fuels
hydrogen bonding
Light scattering
Middle East
molecular weight
oxygen
particle size distribution
Solubility
Solubility parameters
Solvents
Title Comparison of Hansen Solubility Parameter of Asphaltenes Extracted from Bitumen Produced in Different Geographical Regions
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