Hydrotreating the Whiterocks oil sand bitumen and bitumen-derived liquid (Abstract only)

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Publication Type abstract; thesis
School or College University of Utah
Author Longstaff, Daniel Claude
Title Hydrotreating the Whiterocks oil sand bitumen and bitumen-derived liquid (Abstract only)
Date 1992-12
Description Conversion of Utah's Uinta Basin bitumens to liquid fuels requires molecular weight reduction of the parent material as well as removal of heteroatoms. Heteroatom reduction of bitumen obtained through solvent extraction of Whiterocks oil sand was investigated. A comparison of the relative processability of Whiterocks bitumen and the bitumen-derived liquid produced by pyrolysis of Whiterocks oil sand in a fluidized bed reactor was assessed. The process variables investigated included temperature (616-712 K) , weight hourly space velocity (0.29-1.38 h"1), and pressure (11.0-17.1 MPa). Significant conversion of bitumen-derived liquid heteroatoms was achieved. However, native bitumen heteroatom removal was limited under similar sets of processing conditions. The refractory nature of the heteroatoms in the native bitumen stems from the higher molecular weight distribution of the uncracked bitumen. Heteroatoms in the native bitumen are unreactive until the moieties that contain them are cracked to reactive lower molecular weight species. Thus, conversion of bitumens to liquid fuels must stress molecular weight reduction prior to heteroatom removal.
Type Text
Publisher University of Utah, Department of Chemical and Fuels Engineering
Subject hydrotreating; Whiterocks oil; oil sand; bitumen; bitumen-derived liquid; bitumen conversion; heteroatom reduction; heteroatom
Language eng
Bibliographic Citation Longstaff, D. C. (1992). Hydrotreating the whiterocks oil sand bitumen and bitumen-derived liquid (Abstract only). Butterworth-Heinemann, Ltd. Thesis (Ph.D.)--University of Utah, Department of Chemical and Fuels Engineering.
Relation Has Part Thesis (Ph.D.)--University of Utah, Department of Chemical and Fuels Engineering, 1992.
Rights Management (c)University of Utah, Department of Chemical and Fuels Engineering
Identifier ir-eua/id/2972
Source DSpace at ICSE
ARK ark:/87278/s6qk0gd2
Setname ir_eua
Date Created 2013-05-15
Date Modified 2015-04-13
ID 214050
Reference URL https://collections.lib.utah.edu/ark:/87278/s6qk0gd2