TY - JOUR
T1 - Unsteady-state mathematical modeling of hydrocarbon feedstock pyrolysis
AU - Dolganov, Igor
AU - Bunaev, Ajur
AU - Dolganova, Irena
N1 - Funding Information:
Funding: This research was funded by Russian State Project “Science” FSWW-2020-0011.
Funding Information:
Acknowledgments: The research was supported by Tomsk Polytechnic University within the framework of the Tomsk Polytechnic University Competitiveness Enhancement Program and Russian State Project “Science” FSWW-2020-0011.
Publisher Copyright:
© 2020 by the authors. Licensee MDPI, Basel, Switzerland.
Copyright:
Copyright 2020 Elsevier B.V., All rights reserved.
PY - 2020/11
Y1 - 2020/11
N2 - Hydrocarbon feedstock pyrolysis is an important method for obtaining monomers that are then used to produce various polymer materials. During this process, a mixture of hydrocarbons is heated at a high temperature and in the absence of oxygen. Because of the side reactions of polymerization and polycondensation, coke products are formed and settle on the inner walls of the coil. This decreases the technical efficiency of the hydrocarbon pyrolysis furnace during its operation, making the process unsteady. In the present research, we developed an unsteady-state mathematical model of hydrocarbon feedstock pyrolysis in order to improve the monitoring, forecasting, and optimization of this technological process. This model can calculate the rate of coke deposition along the length of the coil, considering the technological parameters and the composition of the supplied raw materials (the calculated value of coke deposition rate equals 0.01 mm/day). It was shown that with an increase in the propane/butane ratio from 4/1 to 1/4 mol/mol, the ethylene concentration decreases from 3.45 mol/L to 3.35 mol/L.
AB - Hydrocarbon feedstock pyrolysis is an important method for obtaining monomers that are then used to produce various polymer materials. During this process, a mixture of hydrocarbons is heated at a high temperature and in the absence of oxygen. Because of the side reactions of polymerization and polycondensation, coke products are formed and settle on the inner walls of the coil. This decreases the technical efficiency of the hydrocarbon pyrolysis furnace during its operation, making the process unsteady. In the present research, we developed an unsteady-state mathematical model of hydrocarbon feedstock pyrolysis in order to improve the monitoring, forecasting, and optimization of this technological process. This model can calculate the rate of coke deposition along the length of the coil, considering the technological parameters and the composition of the supplied raw materials (the calculated value of coke deposition rate equals 0.01 mm/day). It was shown that with an increase in the propane/butane ratio from 4/1 to 1/4 mol/mol, the ethylene concentration decreases from 3.45 mol/L to 3.35 mol/L.
KW - Hydrocarbon feedstock
KW - Mathematical model
KW - Pyrolysis
KW - Unsteady-state
UR - http://www.scopus.com/inward/record.url?scp=85095120673&partnerID=8YFLogxK
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U2 - 10.3390/pr8111394
DO - 10.3390/pr8111394
M3 - Article
AN - SCOPUS:85095120673
VL - 8
SP - 1
EP - 13
JO - Processes
JF - Processes
SN - 2227-9717
IS - 11
M1 - 1394
ER -