Axial dispersion of non-Newtonian fluids in porous media
Mixing of liquids in the direction parallel to flow through porous media, usually termed axial dispersion, is a significant factor in regard to chromatography columns, packed bed reactors, and miscible displacement methods for the recovery of petroleum. For this reason, axial dispersion rates have frequently been investigated, but practically investigations have employed low viscosity Newtonian fluid such as water and light hydrocarbons. In this research, pseudoplastic fluids having a power law exponent as low as 0.6 were employed at very low flow rates to facilitate the observation of non-Newtonian effects on axial dispersion rates. The flow system used in this investigation was a vertically oriented glass bead pack. Glass beads of 470 mu nominal size were packed into the flow cell while vibrating the cell. The studies were conducted by displacing an undyed solution from the bead pack with a dyed solution at a constant rate aor visa versa. Vertical, downward flow was used in all displacements. (10 refs.)
- Research Organization:
- Texas Tech Unic.
- OSTI ID:
- 5004787
- Journal Information:
- AIChE J.; (United States), Vol. 19:1
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
58 GEOSCIENCES
POROUS MATERIALS
FLUID FLOW
GLYCEROL
LIQUIDS
MISCIBLE-PHASE DISPLACEMENT
PARTICLE SIZE
PETROLEUM
POLYMERS
RHEOLOGY
ALCOHOLS
ENERGY SOURCES
FLUID INJECTION
FLUIDS
FOSSIL FUELS
FUELS
HYDROXY COMPOUNDS
MATERIALS
ORGANIC COMPOUNDS
SIZE
020300* - Petroleum- Drilling & Production
580100 - Geology & Hydrology- (-1989)