Actions for Characterization and utilization of hydrotreated products produced from the Whiterocks (Utah) tar sand bitumen-derived liquid [electronic resource].

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Characterization and utilization of hydrotreated products produced from the Whiterocks (Utah) tar sand bitumen-derived liquid [electronic resource].

Published
Salt Lake City, Utah : University of Utah, 1991.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description
20 pages : digital, PDF file
Additional Creators
University of Utah and United States. Department of Energy. Office of Scientific and Technical Information
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Summary
The bitumen-derived liquid produced in a 4-inch diameter fluidized-bed reactor from the mined and crushed ore from the Whiterocks tar sand deposit has been hydrotreated in a fixed-bed reactor. The purpose was to determine the extent of upgrading as a function of process operating variable. A sulfided nickel-molybendum on alumina hydrodenitrogenation catalyst was used in all experiments. Moderately severe operating conditions were employed; that is, high reaction temperature (617--680 K) high reactor pressure (11.0--17.1 MPa) and low liquid feed rate (0.18--0.77 HSV); to achieve the desired reduction in heteroatom content. Detailed chemical structures of the bitumen-derived liquid feedstock and the hydrotreated total liquid products were determined by high resolution gas chromatography - mass spectrometry analyses. The compounds identified in the native bitumen included isoprenoids; bicyclic, tricycle, and tetracyclic terpenoids; steranes; hopanes; and perhydro-β-carotenes. In addition, normal and branched alkanes and alkenes and partially dehydrogenated hydroaromatics were identified in the bitumen-derived liquid. The dominant pyrolysis reactions were: (1) the dealkylation of long alkyl side chains to form α - and isoolefins; and (2) the cleavage of alkyl chains linking aromatic and hydroaromatic clusters. Olefinic bonds were not observed in the hydrotreated product and monoaromatic hydrocarbons were the predominant aromatic species. The properties of the jet fuel fractions from the hydrotreated products met most of the jet fuel specifications. The cetane indices indicated these fractions would be suitable for use as diesel fuels.
Report Numbers
E 1.99:doe/mc/26268--92/c0013
E 1.99: conf-911182--13
conf-911182--13
doe/mc/26268--92/c0013
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Note
Published through SciTech Connect.
12/31/1991.
"doe/mc/26268--92/c0013"
" conf-911182--13"
"DE92012544"
Eastern oil shale symposium, oil shale, tar sands, heavy oil,Lexington, KY (United States),13-15 Nov 1991.
Deo, M.D.; Tsai, C.H.; Oblad, A.G.; Hanson, F.V.; Longstaff, D.C.
Funding Information
FC21-89MC26268
View MARC record | catkey: 14673320