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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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 |
work_keys_str_mv |
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1725207691581718528 |