Population balance modeling: A useful approach for understanding FCC unit particulate emission generation mechanisms

David Stockwell, Jennifer Wade, Robert Andrews, S. B.Reddy Karri, Yeook Arrington, Ray Cocco

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

2 Scopus citations


Population balance models can be used to understand the pathway of fines generation in both the FCCU and the laboratory setting. Analogous to a reaction kinetic model, this technique can be used to distinguish the relative rates of attrition via particle fracture versus abrasion. A population balance model was applied to FCCU to assess the importance of different catalyst attrition mechanisms. Fracture and abrasion were found to occur in commercial units, however, in five out of six units, abrasion was most important. This same technique was subsequently applied to several laboratory attrition methods. An air jet method was identified as being the most relevant. Using a single sample of equilibrium catalyst, attrition in the different tests were found to ranged more dramatically, from predominantly fracture to mainly abrasion-based attrition. This is an abstract of a paper presented at the NPRA 2011 Annual Meeting (San Antonio, TX 3/21/2011).

Original languageEnglish (US)
Title of host publicationNPRA Annual Meeting 2011
Number of pages23
StatePublished - 2011
Externally publishedYes
EventNPRA Annual Meeting 2011 - San Antonio, TX, United States
Duration: Mar 20 2011Mar 22 2011

Publication series

NameNPRA Annual Meeting Technical Papers


ConferenceNPRA Annual Meeting 2011
Country/TerritoryUnited States
CitySan Antonio, TX

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Fuel Technology
  • General Chemical Engineering


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