Intracrystalline diffusion in zeolites. Communication 4. Influence of heat effects and diffusion in transport pores on the kinetics of adsorption of n-butane by CaA zeolite

Journal Article · Mon Sep 01 04:00:00 EDT 1986 · Bull. Acad. Sci. USSR, Div. Chem. Sci. (Engl. Transl.); (United States)

DOI:https://doi.org/10.1007/BF00953205· OSTI ID:6808428

Voloshchuk, A M

The authors evaluate the contribution of different factors to the adsorption kinetics in determining the intracrystalline diffusion coefficients from adsorption-kinetic measurements. Estimated calculations of the effect of diffusion in transport pores and the final rate of dissipation of the heat of adsorption on the kinetics of adsorption of n-butane by CaA zeolite are reported. It was concluded that in the adsorption of n-butane by CaA zeolite from a one-component gas phase, the relative role of diffusion in transport pores decreases with an increase in the degree of filling, and the role of the thermal component increases. It was also shown that the contribution of the thermal component increases with a decrease in the size of the adsorbent granule, and when the thickness of the plate is 2 /SUB L/ <0.01 cm, the adsorption kinetics are basically determined by the rate of dissipation of the heat of adsorption with all degrees of filling studied.

• Research Organization: Institute of Physical Chemistry, Moscow
• OSTI ID: 6808428
• Journal Information: Bull. Acad. Sci. USSR, Div. Chem. Sci. (Engl. Transl.); (United States), Journal Name: Bull. Acad. Sci. USSR, Div. Chem. Sci. (Engl. Transl.); (United States) Vol. 35:3; ISSN BACCA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical &amp; Physicochemical Properties
ADSORPTION
ADSORPTION ISOTHERMS
ALKALINE EARTH METAL COMPOUNDS
ALKANES
ARGON
BUTANE
CALCIUM COMPOUNDS
DIFFUSION
ELEMENTS
ENERGY TRANSFER
FLUIDS
GASES
HEAT TRANSFER
HYDROCARBONS
INORGANIC ION EXCHANGERS
ION EXCHANGE MATERIALS
ISOTHERMS
KINETICS
MATERIALS
MEDIUM TEMPERATURE
MINERALS
NONMETALS
ORGANIC COMPOUNDS
RARE GASES
REACTION KINETICS
SORPTION
SORPTIVE PROPERTIES
SURFACE PROPERTIES
TEMPERATURE EFFECTS
ZEOLITES