One- and two-component diffusion in zeolite ZSM-5. I. Theoretical

Journal Article · Thu Nov 01 00:00:00 EST 1990 · Journal of Catalysis; (USA)

DOI:https://doi.org/10.1016/0021-9517(90)90053-M· OSTI ID:5619248

Qureshi, W R; Wei, J ^[1]

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1. Massachusetts Inst. of Tech., Cambridge (USA)

The properties of a multicomponent diffusion matrix, derived from a model for single-file diffusion, are discussed. This matrix has several pleasing characteristics, many of which can be discussed in terms of its eigenfunctions. The model has been applied to the steady-state Wicke-Kallenbach and to the transient uptake experiments. For the transient uptake, both constant pressure and variable pressure boundary conditions have been considered. Finally, the case of a first-order reversible reaction is addressed.

• OSTI ID: 5619248
• Journal Information: Journal of Catalysis; (USA), Vol. 126:1; ISSN 0021-9517
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
02 PETROLEUM
ZEOLITES
PERMEABILITY
BOUNDARY CONDITIONS
CRYSTAL STRUCTURE
DIFFUSION
EIGENFUNCTIONS
MATHEMATICAL MODELS
MATRICES
MOLECULES
PRESSURE DEPENDENCE
STEADY-STATE CONDITIONS
TRANSIENTS
FUNCTIONS
INORGANIC ION EXCHANGERS
ION EXCHANGE MATERIALS
MATERIALS
MINERALS
400201* - Chemical & Physicochemical Properties
020400 - Petroleum- Processing