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Modeling a Reaction Section of a Commercial Continuous Catalytic Reformer

Authorized Users Only
2018
Authors
Polovina, Sasa
Vojtech, Merva
Dejanović, Igor
Grujić, Aleksandar
Stijepović, Mirko
Article (Published version)
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Abstract
Continuous catalytic reforming (CCR) is known to convert refinery naphtha to a high-octane liquid product, also known as the reformate. In this paper, a First Principle Reaction Section Model for a CCR process is presented. Even though CCR is a well-established technology, the application of advanced, real-time optimization techniques that are able to quickly respond to any imposed changes onto the process, are necessary in the refinery business. This becomes particularly important as a result of changes in profit margin, changes in operating cost, and the introduction of new environmental legislations. Hence, we present a kinetic model for the CCR process using the so-called "lumped" concept. The reactors have been modeled using a quasi-steady-state approach. The unknown model parameters have been estimated by bench marking the First Principle Reaction Section results with a commercial CCR process owned by the Hungarian Oil and Gas Public Limited Company (INA-MOL). The proposed model ...has been tested and compared to data obtained from an existing CCR plant. The predictions of the model were found to be in good agreement with the experimental data. The relative absolute errors between the measured and model estimated variables have been found to be lower than 2%. The relative absolute error associated with the required fired heater duties were less than 1.0%. Simulating the reaction section of the CCR process requires less than 0.1 s of CPU time, which clearly indicates that this model can be very suitable for performing optimization studies. Moreover, this study shows that, although there is fluctuation in the composition of feedstock, the lumped kinetic approach was capable to predict the behavior of the CCR process well.

Source:
Energy & Fuels, 2018, 32, 5, 6378-6396
Publisher:
  • Amer Chemical Soc, Washington
Funding / projects:
  • Synthesis, processing and applications of nanostructured multifunctional materials with defined properties (RS-45019)
  • Predefined functional properties polymer composite materials processes and equipment development (RS-34011)
  • New industrial and environmental application of chemical thermodynamics to the development of the chemical processes with multiphase and multicomponent systems (RS-172063)

DOI: 10.1021/acs.energyfuels.7b03897

ISSN: 0887-0624

WoS: 000432754700072

Scopus: 2-s2.0-85047540417
[ Google Scholar ]
10
6
URI
http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4001
Collections
  • Radovi istraživača / Researchers’ publications (TMF)
Institution/Community
Tehnološko-metalurški fakultet
TY  - JOUR
AU  - Polovina, Sasa
AU  - Vojtech, Merva
AU  - Dejanović, Igor
AU  - Grujić, Aleksandar
AU  - Stijepović, Mirko
PY  - 2018
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4001
AB  - Continuous catalytic reforming (CCR) is known to convert refinery naphtha to a high-octane liquid product, also known as the reformate. In this paper, a First Principle Reaction Section Model for a CCR process is presented. Even though CCR is a well-established technology, the application of advanced, real-time optimization techniques that are able to quickly respond to any imposed changes onto the process, are necessary in the refinery business. This becomes particularly important as a result of changes in profit margin, changes in operating cost, and the introduction of new environmental legislations. Hence, we present a kinetic model for the CCR process using the so-called "lumped" concept. The reactors have been modeled using a quasi-steady-state approach. The unknown model parameters have been estimated by bench marking the First Principle Reaction Section results with a commercial CCR process owned by the Hungarian Oil and Gas Public Limited Company (INA-MOL). The proposed model has been tested and compared to data obtained from an existing CCR plant. The predictions of the model were found to be in good agreement with the experimental data. The relative absolute errors between the measured and model estimated variables have been found to be lower than 2%. The relative absolute error associated with the required fired heater duties were less than 1.0%. Simulating the reaction section of the CCR process requires less than 0.1 s of CPU time, which clearly indicates that this model can be very suitable for performing optimization studies. Moreover, this study shows that, although there is fluctuation in the composition of feedstock, the lumped kinetic approach was capable to predict the behavior of the CCR process well.
PB  - Amer Chemical Soc, Washington
T2  - Energy & Fuels
T1  - Modeling a Reaction Section of a Commercial Continuous Catalytic Reformer
EP  - 6396
IS  - 5
SP  - 6378
VL  - 32
DO  - 10.1021/acs.energyfuels.7b03897
ER  - 
@article{
author = "Polovina, Sasa and Vojtech, Merva and Dejanović, Igor and Grujić, Aleksandar and Stijepović, Mirko",
year = "2018",
abstract = "Continuous catalytic reforming (CCR) is known to convert refinery naphtha to a high-octane liquid product, also known as the reformate. In this paper, a First Principle Reaction Section Model for a CCR process is presented. Even though CCR is a well-established technology, the application of advanced, real-time optimization techniques that are able to quickly respond to any imposed changes onto the process, are necessary in the refinery business. This becomes particularly important as a result of changes in profit margin, changes in operating cost, and the introduction of new environmental legislations. Hence, we present a kinetic model for the CCR process using the so-called "lumped" concept. The reactors have been modeled using a quasi-steady-state approach. The unknown model parameters have been estimated by bench marking the First Principle Reaction Section results with a commercial CCR process owned by the Hungarian Oil and Gas Public Limited Company (INA-MOL). The proposed model has been tested and compared to data obtained from an existing CCR plant. The predictions of the model were found to be in good agreement with the experimental data. The relative absolute errors between the measured and model estimated variables have been found to be lower than 2%. The relative absolute error associated with the required fired heater duties were less than 1.0%. Simulating the reaction section of the CCR process requires less than 0.1 s of CPU time, which clearly indicates that this model can be very suitable for performing optimization studies. Moreover, this study shows that, although there is fluctuation in the composition of feedstock, the lumped kinetic approach was capable to predict the behavior of the CCR process well.",
publisher = "Amer Chemical Soc, Washington",
journal = "Energy & Fuels",
title = "Modeling a Reaction Section of a Commercial Continuous Catalytic Reformer",
pages = "6396-6378",
number = "5",
volume = "32",
doi = "10.1021/acs.energyfuels.7b03897"
}
Polovina, S., Vojtech, M., Dejanović, I., Grujić, A.,& Stijepović, M.. (2018). Modeling a Reaction Section of a Commercial Continuous Catalytic Reformer. in Energy & Fuels
Amer Chemical Soc, Washington., 32(5), 6378-6396.
https://doi.org/10.1021/acs.energyfuels.7b03897
Polovina S, Vojtech M, Dejanović I, Grujić A, Stijepović M. Modeling a Reaction Section of a Commercial Continuous Catalytic Reformer. in Energy & Fuels. 2018;32(5):6378-6396.
doi:10.1021/acs.energyfuels.7b03897 .
Polovina, Sasa, Vojtech, Merva, Dejanović, Igor, Grujić, Aleksandar, Stijepović, Mirko, "Modeling a Reaction Section of a Commercial Continuous Catalytic Reformer" in Energy & Fuels, 32, no. 5 (2018):6378-6396,
https://doi.org/10.1021/acs.energyfuels.7b03897 . .

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