A predictive model of catalytic cracking: Feedstock-induced changes in gasoline and gas composition

Galina Nazarova, Elena Ivashkina, Emiliya Ivanchina, Alexandra Oreshina, Eugene Vymyatnin

Research output: Contribution to journalArticlepeer-review

Abstract

One way to improve and predict unsteady processes of petroleum fuel production is to develop a mathematical model, that considers the feedstock composition. A study of various feedstock deep refining processes is particularly important. In this paper, we present the prediction of the catalytic cracking unit under feedstock base expansion by using oil fractions with a higher boiling point. The zeolite-containing catalyst with ZSM-5/Y ratio = 0.11 was used in this work. A new kinetic model involving the high molecular weight of C13–C40 hydrocarbons, gasoline groups, gas individual hydrocarbons and coke formation reactions was developed. The feed comprehensive studies, the development and application of a mathematical model allow assessing the feasibility of various feedstock types involvement. The impact of four feedstock types on the yield of catalytic cracking products, catalyst deactivation degree, gasoline and gas composition, and octane number were determined. Among the feedstocks under study are West Siberian oil vacuum gas oil, a mixture of Kazakhstan and West Siberian oil, a mixture of vacuum and atmospheric gas oil with residual feedstock (extract, slack waxes, petrolatum, deasphalting agent, raffinate), a mixture of vacuum distillate and residual feedstock (extracts, slack waxes).

Original languageEnglish
Article number106720
JournalFuel Processing Technology
DOIs
Publication statusAccepted/In press - 2021

Keywords

  • Catalytic cracking
  • Coke
  • Feedstock composition
  • Gasoline composition
  • Mathematical modeling
  • Product distribution

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Fuel Technology
  • Energy Engineering and Power Technology

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