Hydordynamic model of Fluid Catalytic Cracking (FCC) riser reactor

Jun You, Chao Zhu

Research output: Chapter in Book/Report/Conference proceedingConference contribution


While commercial FCC riser reactor converts heavy hydrocarbon petroleum fractions into a slate of more usable products, mass transfer, momentum transfer, heat transfer, catalytic cracking reaction and phase transfer are entangled and occur simultaneously inside the riser reactor. Since the FCC process is in nature strong inter-coupled with multiphase flow hydrodynamics, in order to predict accurate behavior of the riser reactor, all these processes need to be comprehensive modeled. Unfortunately most of published literature focused too much on the FCC process itself without paying enough attention to significant influence on the cracking kinetics from multiphase flow hydrodynamic, such as local catalyst concentration, local catalyst velocity and even catalyst average size. The aim of this work is to develop a generic modeling approach which can fully incorporate multiphase flow hydrodynamics with FCC process. The emphasis of this model is to develop a framework to simultaneously simulate the multiphase flow hydrodynamics, cracking reaction and their inter-coupling characteristics in riser reactor. This modeling approach opens up a new dimension for making generic models suitable for the analysis and control studies of FCC units. Predictions of the model will compare with the yield pattern of industrial scale plant data reported in literatures.

Original languageEnglish (US)
Title of host publicationAIChE100 - 2008 AIChE Annual Meeting, Conference Proceedings
StatePublished - 2008
Event2008 AIChE Annual Meeting, AIChE 100 - Philadelphia, PA, United States
Duration: Nov 16 2008Nov 21 2008

Publication series

NameAIChE Annual Meeting, Conference Proceedings


Other2008 AIChE Annual Meeting, AIChE 100
Country/TerritoryUnited States
CityPhiladelphia, PA

All Science Journal Classification (ASJC) codes

  • General Chemistry
  • General Chemical Engineering


  • Cracking kinetics
  • Fluid Catalytic Cracking
  • Multiphase flow hydrodynamics
  • Riser reactor


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