Journal ArticleDOI
Nonuniform distribution of catalysts on supports: II. First order reactions with poisoning
E.Robert Becker,James Wei +1 more
Reads0
Chats0
TLDR
In this paper, the same quantity of active material, deposited in different manners on supports and subjected to a period of poison deposition, are compared in their durabilities towards poisoning, and a criterion for catalyst selection is given, based on durability and efficiency.About:
This article is published in Journal of Catalysis.The article was published on 1977-03-01. It has received 69 citations till now. The article focuses on the topics: Catalyst support.read more
Citations
More filters
Journal ArticleDOI
Heterogeneous Catalyst Deactivation and Regeneration: A Review
TL;DR: In this article, a review on deactivation and regeneration of heterogeneous catalysts classifies deactivation by type (chemical, thermal, and mechanical) and by mechanism (poisoning, fouling, thermal degradation, vapor formation, vapor-solid and solid-solid reactions, and attrition/crushing).
Journal ArticleDOI
The Distribution of Active ingredients in Supported Catalysts Prepared by Impregnation
Sheng-Yi Lee,Rutherford Aris +1 more
TL;DR: In this article, the impregnation of the supported catalysts with an aqueous solution of a compound containing the appropriate catalytic component is an important and frequently used method of preparing this type of catalyst.
Journal ArticleDOI
Isothermal effectiveness factor—II: Analytical expression for single reaction with arbitrary kinetics, geometry and activity distribution
TL;DR: In this paper, the geometry of the pellet can be arbitrary and a non uniform distribution of the catalyst is considered, and an almost general and very simple algebraic expression is deduced to predict effectiveness factor values within 10% of their respective exact values.
Journal ArticleDOI
Design and Preparation of Impregnated Catalysts
TL;DR: In this paper, the authors describe liquid-phase impregnation in which a dry or wet pellet of the porous support is impregnated with a solution of a desired catalytic constituent.
Journal ArticleDOI
Optimal Distribution of Catalyst in Pellets
TL;DR: In this article, the effects of deliberate nonuniform distribution of the catalytic material within the support on the performance of a catalyst pellet started receiving attention in the late 1960's.
References
More filters
Journal ArticleDOI
Nonuniform distribution of catalysts on supports: I. Bimolecular Langmuir reactions
E.Robert Becker,James Wei +1 more
TL;DR: In this paper, the bimolecular Lagmuir kinetics under isothermal conditions, such as the oxidation of carbon monoxide over platinum, were computed and compared for four catalysts: active ingredient deposited in an interior layer, in a middle layer, and in an exterior layer, uniformly in the entire support.
Journal ArticleDOI
Effects of poisoning and sintering on the pore structure and diffusive behavior of platinum/alumina catalysts in automotive converters
L. Louis Hegedus,Kenneth Baron +1 more
TL;DR: In this paper, the relationship between the effective diffusivity of spherical Pt Al 2 O 3 pellets and their pore structure was analyzed using the random pore diffusivities model.
Related Papers (5)
Changing catalyst performance by varying the distribution of active catalyst within porous supports
Nonuniform distribution of catalysts on supports: I. Bimolecular Langmuir reactions
E.Robert Becker,James Wei +1 more
The influence of non-uniform catalytic activity on the performance of a single spherical pellet
William E. Corbett,Dan Luss +1 more