Hydrotreating the bitumen-derived hydrocarbon liquid produced in a fluidized-bed pyrolysis reactor
The pyrolysis of bitumen-impregnated sandstone produces three primary product streams: C{sub 1}-C{sub 4} hydrocarbons gases, a C{sub 5}{sup +} 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.
- Research Organization:
- Utah Univ., Salt Lake City, UT (United States). Dept. of Fuels Engineering
- Sponsoring Organization:
- DOE; USDOE, Washington, DC (United States)
- DOE Contract Number:
- FC21-89MC26268
- OSTI ID:
- 5594465
- Report Number(s):
- DOE/MC/26268-92/C0012; CONF-911182--11; ON: DE92012545
- Country of Publication:
- United States
- Language:
- English
Similar Records
Hydrotreating the native bitumen from the Whiterocks tar sand deposit
Hydrotreating the native bitumen from the Whiterocks tar sand deposit
Related Subjects
040402* -- Oil Shales & Tar Sands-- Surface Methods
ASPHALTENES
ASPHALTS
BITUMENS
CATALYSTS
CHEMICAL REACTIONS
DECOMPOSITION
DISTILLATION
ELEMENTS
FLUIDIZED BED REACTORS
FUEL DISPERSION REACTORS
HOMOGENEOUS REACTORS
HYDROCARBONS
MANAGEMENT
MATERIALS RECOVERY
NITROGEN
NONMETALS
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
POUR POINT
PROCESSING
PYROLYSIS
REACTORS
RECOVERY
ROCKS
SANDSTONES
SEDIMENTARY ROCKS
SEPARATION PROCESSES
SULFUR CONTENT
TAR
THERMOCHEMICAL PROCESSES
VISCOSITY
WASTE MANAGEMENT
WASTE PROCESSING
YIELDS