Kinetics of Gaseous Product Formation in the Coke Combustion of a Fluidized Catalytic Cracking Catalyst

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• 作者：José ; M. Arandes ; Iñ ; aki Abajo ; Inmaculada Fern&aacute ; ndez ; Danilo Ló ; pez ; and Javier Bilbao
• 刊名：Industrial & Engineering Chemistry Research
• 出版年：1999
• 出版时间：September 1999
• 年：1999
• 卷：38
• 期：9
• 页码：3255 - 3260
• 全文大小：67K
• 年卷期：v.38,no.9(September 1999)
• ISSN：1520-5045

文摘

Combustion of the coke deposited on a commercial catalytic cracking catalyst is studied bydifferential scanning calorimetry. The conditions of the industrial operation in a fluidized catalyticcracking unit causing deactivation (feed, contact time, and temperature, C/O ratio) and thoseused for regeneration (catalyst stripping and temperature) have been reproduced. Combustionheat of coke is strongly dependent on combustion temperature and on deactivation severity(reaction conditions). Kinetic equations for the formation of gaseous combustion products, CO,CO₂, and H₂O, have been determined, which are useful in the design of industrial regenerators.