Counterdiffusion of liquid hydrocarbon pairs in ion-exchanged forms of zeolite X
Journal Article
·
· Sep. Sci. Technol.; (United States)
Adsorptive counterdiffusion rates of liquid benzene, ethyl benzene, 1,3,5-trimethyl benzene, and 1-methyl naphthalene into Na/sup +/, K/sup +/, Cs/sup +/, and Ca/sup 2 +/ ion exchanged forms of zeolite X saturated with cyclohexane were measured. The diffusivity of the adsorbing hydrocarbon decreases as the effective pore size of the zeolite is decreased by ion exchange. The effective pore size in CaX and CsX was so small as not to allow the adsorptive counterdiffusion of 1,3,5-trimethyl benzene and 1-methyl naphthalene. Diffusion took place only after the cations in the pore mouths were displaced to other cation sites in the structure under the influence of the adsorbing hydrocarbon molecules, and thus the rate of counterdiffusion appeared to increase with time.
- Research Organization:
- Middle East Technical Univ., Ankara, Turkey
- OSTI ID:
- 5582960
- Journal Information:
- Sep. Sci. Technol.; (United States), Journal Name: Sep. Sci. Technol.; (United States) Vol. 21:5; ISSN SSTED
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
02 PETROLEUM
020400 -- Petroleum-- Processing
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400301* -- Organic Chemistry-- Chemical & Physicochemical Properties-- (-1987)
ADSORPTION
ALKALI METAL COMPOUNDS
ALKALINE EARTH METAL COMPOUNDS
ALKANES
AROMATICS
BENZENE
CALCIUM COMPOUNDS
CATALYSTS
CATIONS
CESIUM COMPOUNDS
CHARGED PARTICLES
CHEMICAL REACTION KINETICS
CONDENSED AROMATICS
CYCLOALKANES
CYCLOHEXANE
DATA
DIFFUSION
EXPERIMENTAL DATA
HYDROCARBONS
INFORMATION
INORGANIC ION EXCHANGERS
ION EXCHANGE
ION EXCHANGE MATERIALS
IONS
KINETICS
MATERIALS
MINERALS
NAPHTHALENE
NUMERICAL DATA
ORGANIC COMPOUNDS
POROSITY
POTASSIUM COMPOUNDS
REACTION KINETICS
SODIUM COMPOUNDS
SORPTION
SORPTIVE PROPERTIES
SURFACE PROPERTIES
TIME DEPENDENCE
ZEOLITES
020400 -- Petroleum-- Processing
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400301* -- Organic Chemistry-- Chemical & Physicochemical Properties-- (-1987)
ADSORPTION
ALKALI METAL COMPOUNDS
ALKALINE EARTH METAL COMPOUNDS
ALKANES
AROMATICS
BENZENE
CALCIUM COMPOUNDS
CATALYSTS
CATIONS
CESIUM COMPOUNDS
CHARGED PARTICLES
CHEMICAL REACTION KINETICS
CONDENSED AROMATICS
CYCLOALKANES
CYCLOHEXANE
DATA
DIFFUSION
EXPERIMENTAL DATA
HYDROCARBONS
INFORMATION
INORGANIC ION EXCHANGERS
ION EXCHANGE
ION EXCHANGE MATERIALS
IONS
KINETICS
MATERIALS
MINERALS
NAPHTHALENE
NUMERICAL DATA
ORGANIC COMPOUNDS
POROSITY
POTASSIUM COMPOUNDS
REACTION KINETICS
SODIUM COMPOUNDS
SORPTION
SORPTIVE PROPERTIES
SURFACE PROPERTIES
TIME DEPENDENCE
ZEOLITES