Hydrotreating the bitumen-derived hydrocarbon liquid produced in a fluidized-bed pyrolysis reactor [electronic resource].
- Washington, D.C. : United States. Dept. of Energy, 1991. and Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
- Physical Description:
- 17 pages : digital, PDF file
- Additional Creators:
- University of Utah, United States. Department of Energy, and United States. Department of Energy. Office of Scientific and Technical Information
- Restrictions on Access:
- Free-to-read Unrestricted online access
- The pyrolysis of bitumen-impregnated sandstone produces three primary product streams: C₁-C₄ hydrocarbons gases, a C₅⁺ total liquid product, and a carbonaceous residue on the spent sand. The bitumen-derived hydrocarbon liquid was significantly upgraded relative to the native bitumen: it had a higher API gravity, lower Conradson carbon residue, asphaltene content, pour point and viscosity and a reduced distillation endpoint relative to the native bitumen. The elemental composition was little different from that of the native bitumen except for the hydrogen content which was lower. The bitumen-derived liquid produced in a 4-inch diameter fluidized-bed reactor from the Whiterocks tar sand deposit has been hydrotreated in a fixed-bed reactor to determine the extent of upgrading as a function of process operating variables. The extent of denitrogenation and desulfurization of the bitumen-derived liquid was used to monitor catalyst activity as a function of process operating variables and to estimate the extent of catalyst deactivation as a function of time on-stream. The apparent kinetics for the nitrogen and sulfur removal reactions were determined. Product distribution and yield data were also obtained.
- Published through SciTech Connect., 12/31/1991., "doe/mc/26268--92/c0012", " conf-911182--11", "DE92012545", Eastern oil shale symposium, oil shale, tar sands, heavy oil,Lexington, KY (United States),13-15 Nov 1991., and Tsai, C.H.; Oblad, A.G.; Deo, M.D.; Hanson, F.V.; Longstaff, D.C.
- Funding Information:
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