F. F. Schoeggl
University of Calgary
Analytical chemistryViscositySaturation (chemistry)Fraction (chemistry)AsphaltChemistryBoiling pointVapor pressureMaterials scienceDistillationPropaneHydrocarbon mixturesHydrocarbonPentaneTolueneFatty acid methyl esterSolventThermal diffusivityChemical engineeringChromatographyPhase (matter)MethaneBiodieselHeat capacityAsphaltenePetroleum engineeringSpecific gravityThermodynamicsFractionationFlory–Huggins solution theory
42Publications
10H-index
333Citations
Publications 42
Newest
#1Harvey W. Yarranton (U of C: University of Calgary)H-Index: 36
#2F. Grimaldos (U of C: University of Calgary)H-Index: 1
Last. William D. L. Richardson (U of C: University of Calgary)H-Index: 5
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#1J. A. Rivero-Sanchez (U of C: University of Calgary)
#2F. Ramos-Pallares (Lakehead University)H-Index: 4
Last. Harvey W. Yarranton (U of C: University of Calgary)H-Index: 36
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#1Harvey W. Yarranton (U of C: University of Calgary)H-Index: 36
#2Daniela Paniagua Fernandez (U of C: University of Calgary)
Last. F. F. Schoeggl (U of C: University of Calgary)H-Index: 10
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#1Javier A. Rivero-Sanchez (U of C: University of Calgary)H-Index: 1
#2F. Ramos-Pallares (Lakehead University)H-Index: 4
Last. Harvey W. Yarranton (U of C: University of Calgary)H-Index: 36
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1 CitationsSource
#1A. Marquez (U of C: University of Calgary)H-Index: 1
#2F. F. Schoeggl (U of C: University of Calgary)H-Index: 10
Last. Harvey W. Yarranton (U of C: University of Calgary)H-Index: 36
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Abstract Visbroken products from a Western Canadian bitumen were generated at five different reaction conditions (temperature and residence time) in an in-house lab-scale continuous reactor unit. Visbroken products from a second Western Canadian bitumen and an Arabian vacuum bottoms were obtained from other sources. Densities and viscosities were measured for the whole oil, the maltenes, the distillates, the distillation residue, and the SARA (saturates, aromatics, resins and asphaltenes) cuts o...
1 CitationsSource
#1J. F. Martinez (U of C: University of Calgary)H-Index: 1
#2F. F. Schoeggl (U of C: University of Calgary)H-Index: 10
Last. Harvey W. Yarranton (U of C: University of Calgary)H-Index: 36
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One reason it is challenging to predict oil recovery rates from solvent-based heavy oil recovery methods is that the interplay of the mass transfer and convective flow mechanisms is not well unders...
2 CitationsSource
#1J. A. Duran (U of C: University of Calgary)H-Index: 3
#2F. F. Schoeggl (U of C: University of Calgary)H-Index: 10
Last. H. S. Fogler (UM: University of Michigan)
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The kinetics of asphaltene precipitation was investigated for five crude oils diluted with n-heptane at 21oC in air and nitrogen atmospheres. The onset of precipitation, defined as the precipitant (n-heptane) content at which detectable asphaltene particles first appear, was measured in air at different contact times using optical microscopy and a gravimetric method. Asphaltene yields (mass asphaltene / mass oil) were measured in air over time gravimetrically. The data were compared with yields ...
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#1S. Rodriguez (U of C: University of Calgary)H-Index: 1
#2E. N. Baydak (U of C: University of Calgary)H-Index: 5
Last. Harvey W. Yarranton (U of C: University of Calgary)H-Index: 36
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Abstract The modified regular solution (MRS) model for asphaltene precipitation was extended to visbroken bitumen products based on data from an Athabasca bitumen that was thermally cracked in a lab-scale flow-through visbreaker at five different temperatures and residence times. The thermal conversion for each visbroken product was calculated based on SimDist data. The feed and each product were characterized into 5 pseudo-components (distillates, saturates, aromatics, resins, and asphaltenes) ...
2 CitationsSource
#1J. A. Duran (U of C: University of Calgary)H-Index: 3
#2F. F. Schoeggl (U of C: University of Calgary)H-Index: 10
Last. Harvey W. Yarranton (U of C: University of Calgary)H-Index: 36
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Abstract Asphaltene precipitation kinetics were investigated for four crude oils with different asphaltene contents, each diluted with n-heptane at room conditions. The yields of precipitated asphaltenes (mass of precipitated asphaltenes divided by mass of bitumen in feed) were measured gravimetrically and the diameters of the aggregated asphaltene particles were measured using both microscopy and the focused beam reflectance method. The measurements were performed at anaerobic conditions. The d...
14 CitationsSource
#1Y. A. Casas (U of C: University of Calgary)H-Index: 2
#2J. A. Duran (U of C: University of Calgary)H-Index: 3
Last. Harvey W. Yarranton (U of C: University of Calgary)H-Index: 36
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The settling rate of asphaltene aggregates is a key design parameter for partial deasphalting processes and yet few data and models are available for these systems. The settling rates of asphaltene aggregates were measured in two Western Canadian bitumens diluted with n-heptane or n-pentane at 21°C and atmospheric pressure. The density and viscosity of the mixtures, the size distributions of the aggregates, and the fractal dimensions of the aggregates were also measured. The asphaltene aggregate...
5 CitationsSource