Diffusional separation of gases and solutes in oscillatory flow
- Univ. of Florida, Gainesville (USA)
The authors present a method for separating gases and solutes by oscillating the fluid column. The process is based on augmented diffusion and is akin to Taylor dispersion. The augmentation of the flux, as compared to simple molecular diffusion, is 3 orders of magnitude in the gaseous system and 6 orders of magnitude in the liquid system. Proper choice of experimental conditions (capillary radius, frequency, and fluid properties) is crucial for best results. In the gaseous system, the best separation factor achieved was 0.4; the expected separation under the conditions prevailing was 0.3. Highest diffusional flux was 850 m/min in a system with a cross-sectional area of 8.62 cm{sup 2}. The net energy consumption at these conditions was only 14 W. The separation in the liquid system was similar to that in the gaseous system. The method provides good separation at low energy cost.
- OSTI ID:
- 5367526
- Journal Information:
- Separation Science and Technology; (United States), Journal Name: Separation Science and Technology; (United States) Vol. 26:4; ISSN SSTED; ISSN 0149-6395
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
320303* -- Energy Conservation
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& Utilization-- Industrial & Agricultural Processes-- Equipment & Processes
ALDEHYDES
ALKALI METAL COMPOUNDS
AMINES
ANTI-INFECTIVE AGENTS
ANTIMICROBIAL AGENTS
AZINES
CARBOHYDRATES
CARBON COMPOUNDS
CARBON DIOXIDE
CARBON OXIDES
CHALCOGENIDES
CHLORIDES
CHLORINE COMPOUNDS
COPPER COMPOUNDS
COPPER SULFATES
DIFFUSION
DRUGS
EFFICIENCY
ELEMENTS
ENERGY CONSUMPTION
EQUATIONS
FLUID FLOW
FLUIDS
GAS FLOW
GASES
GLUCOSE
HALIDES
HALOGEN COMPOUNDS
HETEROCYCLIC COMPOUNDS
HEXOSES
LIQUID FLOW
MATHEMATICS
METHYLENE BLUE
MONOSACCHARIDES
NONMETALS
OPTIMIZATION
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
ORGANIC SULFUR COMPOUNDS
OSCILLATIONS
OXIDES
OXYGEN
OXYGEN COMPOUNDS
PHENOTHIAZINES
POTASSIUM CHLORIDES
POTASSIUM COMPOUNDS
REGRESSION ANALYSIS
SACCHARIDES
SEPARATION PROCESSES
SOLUTES
STATISTICS
SULFATES
SULFUR COMPOUNDS
TEST FACILITIES
TRANSITION ELEMENT COMPOUNDS