Configurational diffusion of asphaltenes in fresh and aged catalyst extrudates. Quarterly progress report, December 20, 1994--March 20, 1995
This quarter, GPC column efficiency and resolution were tested. Better resolution and separation of petroleum asphaltenes were obtained in GPC by connecting four columns (1000{Angstrom}, 1000{Angstrom}, 500{Angstrom}, 500{Angstrom} pore sizes, respectively) in series. A good linear column calibration curve was obtained using several polystyrene standards with molecular weights ranging from 500 to 5 {times} 10{sup 4}. The molecular weight distribution of a petroleum asphaltenes was approximated by the polystyrene calibration curve.
- Research Organization:
- Auburn Univ., AL (United States). Dept. of Chemical Engineering
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- FG22-91PC91311
- OSTI ID:
- 80752
- Report Number(s):
- DOE/PC/91311-T14; ON: DE95015613
- Resource Relation:
- Other Information: PBD: [1995]
- Country of Publication:
- United States
- Language:
- English
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