Prediction of the Products Yield of Delayed Coking for Iranian Vacuum Residues

In this work, new correlations are proposed to predict the products yield of delayed coking as a function of CCR and temperature based on the experimental results. For this purpose, selected Iranian vacuum residues with Conradson carbon residue (CCR) values between 13.40-22.19 wt.% were heated at a...

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Main Authors: Farshad Torabi Esfahani, Javad Ivakpour, Mohammadreza Ehsani
Format: Article
Language:English
Published: Petroleum University of Technology 2018-07-01
Series:Iranian Journal of Oil & Gas Science and Technology
Subjects:
Online Access:http://ijogst.put.ac.ir/article_55729_57594dcc241bc6edb7b253bf3b4d08fd.pdf
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spelling doaj-b26f5aacbbb0492c943b1cb4244e56af2020-11-25T01:01:45ZengPetroleum University of TechnologyIranian Journal of Oil & Gas Science and Technology2345-24122345-24202018-07-0173536410.22050/ijogst.2017.102019.141555729Prediction of the Products Yield of Delayed Coking for Iranian Vacuum ResiduesFarshad Torabi Esfahani0Javad Ivakpour1Mohammadreza Ehsani2Ph.D. Student, Department of Chemical Engineering, Isfahan University of Technology, Isfahan 84156-83111, IranAssociate Professor, Upgrading and Optimization Technologies Group, Petroleum Refining Division, Research Institute of Petroleum Industry (RIPI), Tehran, IranProfessor, Department of Chemical Engineering, Isfahan University of Technology, Isfahan 84156-83111, IranIn this work, new correlations are proposed to predict the products yield of delayed coking as a function of CCR and temperature based on the experimental results. For this purpose, selected Iranian vacuum residues with Conradson carbon residue (CCR) values between 13.40-22.19 wt.% were heated at a 10 °C/min heating rate and thermally cracked in a temperature range of 400-500 °C in a laboratory batch atmospheric delayed coking reactor for 2 hours. The amount of distillate (C<sub>5+</sub>-500 °C) and coke yield were measured in all the experiments, and the gas (C<sub>1</sub>-C<sub>4</sub>) product yield was calculated based on mass balance between products and feedstock in each experiment. According to the developed functions, products yield changes with CCR value linearly and is a power function of temperature. The further investigation of the results show that by a 1 wt.% increase in CCR value, the distillate yield decreases by about 2.1 wt.%, but the amount of coke and gas yields rise by 1.2 wt.% and 0.9 wt.% respectively.http://ijogst.put.ac.ir/article_55729_57594dcc241bc6edb7b253bf3b4d08fd.pdfProduct YieldDelayed CokingThermal Cracking
collection DOAJ
language English
format Article
sources DOAJ
author Farshad Torabi Esfahani
Javad Ivakpour
Mohammadreza Ehsani
spellingShingle Farshad Torabi Esfahani
Javad Ivakpour
Mohammadreza Ehsani
Prediction of the Products Yield of Delayed Coking for Iranian Vacuum Residues
Iranian Journal of Oil & Gas Science and Technology
Product Yield
Delayed Coking
Thermal Cracking
author_facet Farshad Torabi Esfahani
Javad Ivakpour
Mohammadreza Ehsani
author_sort Farshad Torabi Esfahani
title Prediction of the Products Yield of Delayed Coking for Iranian Vacuum Residues
title_short Prediction of the Products Yield of Delayed Coking for Iranian Vacuum Residues
title_full Prediction of the Products Yield of Delayed Coking for Iranian Vacuum Residues
title_fullStr Prediction of the Products Yield of Delayed Coking for Iranian Vacuum Residues
title_full_unstemmed Prediction of the Products Yield of Delayed Coking for Iranian Vacuum Residues
title_sort prediction of the products yield of delayed coking for iranian vacuum residues
publisher Petroleum University of Technology
series Iranian Journal of Oil & Gas Science and Technology
issn 2345-2412
2345-2420
publishDate 2018-07-01
description In this work, new correlations are proposed to predict the products yield of delayed coking as a function of CCR and temperature based on the experimental results. For this purpose, selected Iranian vacuum residues with Conradson carbon residue (CCR) values between 13.40-22.19 wt.% were heated at a 10 °C/min heating rate and thermally cracked in a temperature range of 400-500 °C in a laboratory batch atmospheric delayed coking reactor for 2 hours. The amount of distillate (C<sub>5+</sub>-500 °C) and coke yield were measured in all the experiments, and the gas (C<sub>1</sub>-C<sub>4</sub>) product yield was calculated based on mass balance between products and feedstock in each experiment. According to the developed functions, products yield changes with CCR value linearly and is a power function of temperature. The further investigation of the results show that by a 1 wt.% increase in CCR value, the distillate yield decreases by about 2.1 wt.%, but the amount of coke and gas yields rise by 1.2 wt.% and 0.9 wt.% respectively.
topic Product Yield
Delayed Coking
Thermal Cracking
url http://ijogst.put.ac.ir/article_55729_57594dcc241bc6edb7b253bf3b4d08fd.pdf
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