On the particle size distribution function and the attrition of cracking catalysts

Autor:	J. E. Gwyn
Rok vydání:	1969
Předmět:	Environmental Engineering Materials science General Chemical Engineering Thermodynamics Function (mathematics) medicine.disease Catalysis Cracking Statistics medicine Attrition Particle size Biotechnology Particle size distribution function Initial rate
Zdroj:	AIChE Journal. 15:35-39
ISSN:	1547-5905 0001-1541
Popis:	The rate of attrition of a catalyst sample, of a single particle size, can be expressed by a simple function of initial diameter and time. The initial rate is a function of initial diameter, whereas the decrease in attrition rate of a catalyst of a given size as it ages depends only on time. The attrition equation for a single size of particles is introduced into the particle size distribution function and, through mathematical analyses, yields a relationship for the attrition of a full size-range catalyst. The form of this relationship, which includes terms for attritability and severity of attrition conditions, is verified by laboratory and commercial attrition data on two full-range catalysts. The size distribution of an attrited sample is not expressible in simple analytical form, but is readily obtained by numerical analysis.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::7db5c259e006f66ff20f7f0e9538129e https://doi.org/10.1002/aic.690150112 Zobrazit plný text záznamu Plný text