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Multiplicity of the steady state in fluidized bed reactors—IV. Fluid catalytic cracking (FCC)

✍ Scribed by S.S.E.H. Elnashaie; I.M. El-Hennawi

Publisher
Elsevier Science
Year
1979
Tongue
English
Weight
745 KB
Volume
34
Category
Article
ISSN
0009-2509

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✦ Synopsis

A mathematical model for flmd catalytrc crackmg umts IS developed The model takes mto account the krnetlcs of the crackmg reactions, as well as the kmetics of coke combustion m the regenerator A model equations It 1s found that multrphcity of the steady states extends over a wide scope of operatrng varlabks and parameters The model mvestlgates the effects of catalyst cvculation rate and gas od flow rate, wbch have a strong effect on the reactor temperature and hence yield and selectivity The phenomenon of hysteresis has been Investigated The model can be used for yield optunrzatlon and steady state control

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