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Hindered Diffusion of Asphaltenes at Elevated Temperature and Pressure Progress Report

Description: During this time period, we performed experiments to examine the effects of solvent composition on the diffusion controlled uptake of quinoline into alumina catalyst pellets. Of particular interest was the effect of solvent aromaticity on the diffusive uptake process. The uptake experiments were performed at a temperature of 300 C for the adsorptive diffusion of quinoline in a solvent mixture of mineral oil and 1-methyl naphthalene onto alumina catalyst pellets. These experiments were conducted… more
Date: April 1, 1999
Creator: Guin, James A. & Vadlamani, Surya
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Hindered Diffusion of Asphaltenes at Elevated Temperature and Pressure Progress Report

Description: During this final time period of the project, work was carried out in two areas. A major amount of effort was devoted to preparation of the final technical report for the project. The data taken on the project were organized and the asphaltenes, solvents, and catalysts used in the diffusional uptake experiments were organized into various systems. Since a large portion of the time for this report was spent on the preparation of the final technical report itself, the executive summary of the fin… more
Date: October 1, 2001
Creator: Guin, James A. & Emerson, Zachery
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Hindered Diffusion of Asphaltenes at Elevated Temperature and Pressure Progress Report

Description: The mathematical model which we have developed previously for diffusion controlled adsorption was extended to allow for the inclusion of the effects of extraparticle film mass transfer resistance as embodied in a finite Sherwood number. A Mathcad based program was used to simulate the experimental data using summation of a large number of terms in the infinite series solution. Parametric studies and accompanying plots revealed that the effects of film resistance on the uptake process were found… more
Date: April 1, 2001
Creator: Guin, James A.; Ramakrishnan, Ganesh; Asada, Keiji & Mosley, Brian
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