Tracer studies for determining dispersion coefficients in isotope exchange columns
Tracer studies were run in ion exchange columns to determine dispersion coefficients. These coefficients are applicable to N{sup 15}{minus}N{sup 14} isotope separation by displacement band chromatography. In conjunction with a model that describes the mass conservation of such a system, the feasibility of this separation method can be estimated. The traces were run at superficial velocities between 0.0487 and 0.2436 cm/s in three columns with diameters of 0.66, 1.0, and 2.54 cm. Dispersion coefficients were obtained in the range of 0.00319 to 0.0302 cm{sup 2}/s. These coefficients were extracted by the method of moments from traces of a nonabsorbing but porous matrix. Dispersion increased as flow rate and column diameter increased, although dependence on column diameter was not strong. 15 refs., 11 figs., 3 tabs.
- Research Organization:
- EG and G Mound Applied Technologies, Miamisburg, OH (USA)
- Sponsoring Organization:
- DOE/DP
- DOE Contract Number:
- AC04-88DP43495
- OSTI ID:
- 7070309
- Report Number(s):
- MLM-3639; ON: DE90014735
- Country of Publication:
- United States
- Language:
- English
Similar Records
Backmixing and heat transfer coefficients in bubble columns using aqueous glycerol solutions
Longitudinal dispersion coefficient depending on superficial velocity of hydrogen isotopes flowing in column packed with zeolite pellets at 77.4 K
Related Subjects
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
EXTRACTION COLUMNS
MIXING
NITROGEN 14
ISOTOPE SEPARATION
NITROGEN 15
DATA ANALYSIS
FLOW RATE
ION EXCHANGE CHROMATOGRAPHY
MATHEMATICAL MODELS
RESINS
CHROMATOGRAPHY
EXTRACTION APPARATUSES
ISOTOPES
LIGHT NUCLEI
NITROGEN ISOTOPES
NUCLEI
ODD-EVEN NUCLEI
ODD-ODD NUCLEI
ORGANIC COMPOUNDS
ORGANIC POLYMERS
PETROCHEMICALS
PETROLEUM PRODUCTS
POLYMERS
SEPARATION EQUIPMENT
SEPARATION PROCESSES
STABLE ISOTOPES
400105* - Separation Procedures