Determination of boundary conditions for zero-order chemical reaction inside a single catalyst pellet under transient condition

Do D.D. (1984) Determination of boundary conditions for zero-order chemical reaction inside a single catalyst pellet under transient condition. Chemical Engineering Communications, 25 1-6: 251-265. doi:10.1080/00986448408940110


Author Do D.D.
Title Determination of boundary conditions for zero-order chemical reaction inside a single catalyst pellet under transient condition
Journal name Chemical Engineering Communications   Check publisher's open access policy
ISSN 1563-5201
Publication date 1984-01-01
Sub-type Article (original research)
DOI 10.1080/00986448408940110
Volume 25
Issue 1-6
Start page 251
End page 265
Total pages 15
Subject 1500 Chemical Engineering
1600 Chemistry
Abstract The transient boundary condition for a zero-order chemical reaction occurring inside a porous catalyst pellet is determined in this paper by applying a singular perturbation technique to a full transient nonequilibrium adsorption and reaction problem. The reactant exhaustion phenomenon is observed during the transient time course and the reactant-free core interface moves toward the center of the pellet. It was found in this paper that the reactant concentration is zero at the core interface and the slope of the reactant concentration profile at this interface is non-zero, and this non-zero slope of the reactant finally reaches zero when t → ∞ and [formula omitted] which is the steady state boundary condition used by many workers in their steady state analysis.
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Unknown

Document type: Journal Article
Sub-type: Article (original research)
Collection: Scopus Import - Archived
 
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Created: Tue, 14 Jun 2016, 16:32:42 EST by System User