Prediction of residue coke content and operating modes of regenerator in the catalytic cracking technology

Galina Nazarova, Elena Ivashkina, Tatyana Shafran, Alexandra Oreshina, Gaini Seitenova

Research output: Contribution to journalArticlepeer-review

Abstract

This work is aimed at predicting the amount of residue coke and the temperature of operating mode of the regenerator, depending on the initial technological conditions of the process during regeneration of catalyst coked at various degrees (0.4–0.6% wt.). Numerical studies were performed using a mathematical model that takes into account the physicochemical regularities of the regeneration process for zeolite-containing catalysts and making it possible to predict not only the amount of the residual coke and the flue gas composition of regeneration, but also the temperature in the regeneration zone. It has been stated that when changing the amount of coke on the coked catalyst from 0.4 to 0.6% wt., the regeneration temperature must be maintained in the range of 673.8–712.8 C to achieve the degree of coke conversion at the level of 92% and to prevent the irreversible deactivation of the catalyst.

Original languageEnglish
Pages (from-to)1017-1025
Number of pages9
JournalPetroleum Science and Technology
Volume38
Issue number24
DOIs
Publication statusPublished - 2020

Keywords

  • mathematical modeling
  • optimization
  • regeneration
  • residue coke

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)
  • Fuel Technology
  • Energy Engineering and Power Technology
  • Geotechnical Engineering and Engineering Geology

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