Solvent deasphalting effects on whole Cold Lake bitumen
Conference
·
OSTI ID:215062
- Exxon Research and Engineering Co., Annandale, NJ (United States)
- Imperial Oil Limited, Calgary, Alberta (Canada)
Solvent separation of bitumen from the Cold Lake region of Alberta, Canada, into deasphalted oils and asphaltenes has been studied using propane, i-butane, n-butane and n-pentane. The resulting range of deasphalting was from 20 to 50 wt.% of the whole bitumen. An extensive study of the fractions, as a function of yield, has shown how and to what extent volatiles, aromatics, sulfur and metals are distributed between the fractions. It was found that the highest molecular weight asphaltenes have the most impact on the viscous nature of such heavy oils, suggesting that even low levels of deasphalting can have a dramatic impact in reducing viscosity. In addition, thiophenic sulfur is more concentrated in the asphaltenes, but the sulfides, acting as cross-links, may be responsible for the highest molecular weight fractions of the asphaltenes.
- OSTI ID:
- 215062
- Report Number(s):
- CONF-950801--
- Country of Publication:
- United States
- Language:
- English
Similar Records
Recovery of deasphalting solvent
Hydrocarbon solvent treatment of bituminous materials
Bitumen utilization via partial upgrading and emulsification
Patent
·
Mon Dec 19 23:00:00 EST 1983
·
OSTI ID:6927237
Hydrocarbon solvent treatment of bituminous materials
Patent
·
Mon Nov 13 23:00:00 EST 1978
·
OSTI ID:6444981
Bitumen utilization via partial upgrading and emulsification
Conference
·
Sat Dec 30 23:00:00 EST 1995
·
OSTI ID:229597