Purification of helium in atomic and molecular gases by cataphoresis
The separation of gas mixtures by cataphoresis in a DC glow discharge was experimentally investigated as a function of the discharge current, the total gas pressure, and the initial composition of the gas mixture. The electric field, degree of ionization, and reactor geometry were also considered. Gases under investigation included binary mixtures of helium with argon, neon, nitrogen, oxygen, carbon monoxide, and carbon dioxide. The experimental results for cataphoretic purification were interpreted within the framework of a recently proposed theory for cataphoresis involving an electrostatic Peclet number. Very good agreement was obtained between the theory and the experiment for the magnitude of the cataphoretic purification and the time for the purification. Design criteria were introduced and tested in detail to aid and facilitate the development and construction of future cataphoretic gas separator systems.
- Research Organization:
- California Inst. of Tech., Pasadena
- OSTI ID:
- 6715163
- Journal Information:
- Chem. Eng. Prog., Symp. Ser.; (United States), Journal Name: Chem. Eng. Prog., Symp. Ser.; (United States) Vol. 67:112; ISSN CEPSA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
Molecular & Chemical Physics
74 ATOMIC AND MOLECULAR PHYSICS
ARGON
CARBON COMPOUNDS
CARBON MONOXIDE
CARBON OXIDES
CHALCOGENIDES
CRYOGENIC FLUIDS
ELECTRIC DISCHARGES
ELECTROPHORESIS
ELEMENTS
FLUIDS
GLOW DISCHARGES
HELIUM
MATHEMATICAL MODELS
NEON
NITROGEN
NONMETALS
OXIDES
OXYGEN
OXYGEN COMPOUNDS
PURIFICATION
RARE GASES