ATTRITION OF FCC POWDER IN THE JETTING REGION OF A FLUIDIZED-BED / GHADIRI M,CLEAVER JAS,TUPONOGOV VG,WERTHER J // POWDER TECHNOLOGY. - 1994. - V. 80, l. 2. - P. 175-178.

ISSN/EISSN:

0032-5910 / нет данных

Type:

Letter

Abstract:

Experimental data on the attrition of fluidized cracking catalyst (FCC) powder in the jetting region of a fluidized bed indicate that the attrition rate is proportional to the orifice velocity raised to the power 3. This dependence is analysed here by coupling the kinetics of attrition, based on single-particle impact attrition testing, with a hydrodynamic model of the jetting region, from which the profiles of particle velocity and concentration can be calculated. It is shown that the approach predicts a power index which is in reasonable agreement with the experimental data, and it can therefore identify the relative contributions to attrition arising from the material response and jet hydrodynamics.

Author keywords:

ATTRITION; JETS; FLUIDIZED BED(S) BREAKAGE

DOI:

10.1016/0032-5910(94)80014-6

Web of Science ID:

ISI:A1994PE55300010

Соавторы в МНС:

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Другие поля

Поле	Значение
Month	AUG
Publisher	ELSEVIER SCIENCE SA LAUSANNE
Address	PO BOX 564, 1001 LAUSANNE 1, SWITZERLAND
Language	English
Keywords-Plus	BREAKAGE
Research-Areas	Engineering
Web-of-Science-Categories	Engineering, Chemical
Number-of-Cited-References	12
Usage-Count-Last-180-days	2
Usage-Count-Since-2013	18
Journal-ISO	Powder Technol.
Doc-Delivery-Number	PE553