Modeling of the Catalytic Cracking
A special issue of Catalysts (ISSN 2073-4344). This special issue belongs to the section "Computational Catalysis".
Deadline for manuscript submissions: closed (31 December 2021) | Viewed by 8768
Special Issue Editors
Interests: catalytic cracking; catalytic reforming; catalyst deactivation; mathematical modeling
Interests: destructive recycling processes of vacuum gas oils; predictive modeling of deactivation non-stationary industrial processes of nanostructured catalysts; hydrocracking; hydrotreating
Special Issue Information
Dear Colleagues,
Significant efforts of the scientific community are focused on the development and optimization of processes and catalysts for the processing of heavy petroleum fractions, including catalytic cracking, which provides the production of about a quarter of the world’s gasoline stock. Along with an increase in the demand for motor fuel, the annual increase in demand for propylene is 5–6%; therefore, olefin-containing catalytic cracking gas, which is characterized by a high content of C3 and C4 hydrocarbons (25.1–35.8 and 31.3–38.00 % wt.) is valuable for the petrochemical industry.
At the same time, an increase in the catalytic cracking unit efficiency is complicated by changes in the feedstock composition and catalyst activity under the influence of coke and heavy metals, as well as the conjugation of the reactor and regenerator technological modes. Depending on these factors, the yield of the gasoline fraction is characterized by an extremum, which is associated with an increase in the rates of hydrocarbon cracking reactions, as well as condensation and coke formation reactions at high temperatures. Therefore, an urgent task in the catalytic cracking technology is to increase the yield of gasoline fraction with high octane characteristics and olefin-containing gas. This problem is especially urgent for units integrated with petrochemical plants.
To solve this problem, an integrated approach is required using mathematical models based on considering the thermodynamic, kinetic, and hydrodynamic regularities of the catalytic cracking of high molecular weight hydrocarbons, as well as the regularities of catalyst activity change under conditions of changing feedstock composition.
This Special Issue is devoted to modeling of the catalytic cracking. Reviews and original research papers are invited from experimental methods for studying the process and cracking catalysts, including topics from catalyst deactivation to simulations of industrial plants.
The potential topics include but are not limited to:
- Analysis of the current state and prospects of the catalytic cracking of petroleum feedstock;
- Modern technologies for catalytic cracking of crude oil;
- Modern catalytic compositions for the cracking of high molecular weight petroleum fractions;
- Modern concepts of the mechanism of hydrocarbon cracking on acid sites of catalysts;
- Deactivation of zeolite-containing cracking catalysts;
- Mathematical modeling of the catalytic cracking of petroleum feedstock considering catalyst deactivation;
- Modeling the process of catalytic cracking of petroleum feedstock based on kinetic schemes;
- Quantum-chemical modeling of the molecular structure, physicochemical properties, and reactivity of hydrocarbons in the catalytic cracking process;
- Thermodynamic laws of the catalytic cracking process;
- CFD modeling of lift reactors;
- Mathematical modeling of industrial technologies for catalytic cracking;
- Solution of multicriteria problems using the method of mathematical modeling on a physical and chemical basis taking into account the thermodynamics and kinetics of hydrocarbon reactions on the catalyst surface, as well as the unsteadiness of the processes due to coking, poisoning by harmful impurities in feedstock, and changes in the hydrocarbon composition of the processed feedstock.
Dr. Elena N. Ivashkina
Dr. Emiliya D. Ivanchina
Guest Editors
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Keywords
- catalytic cracking
- catalytic cracking reactors
- catalyst deactivation
- mathematical modeling
- predictive modeling
- deactivation non-stationary industrial processes of nanostructured catalysts
- hydrocracking
- hydrotreating
- dewaxing
- isomerization
- alkylation and reforming
- multi-criteria optimization
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