Application of Threshold Model with Various Tube Wall Temperatures for Crude Oil Preheat Train Fouling

The Propose of this paper is to introduce a new model for crude oil fouling in preheat trains of crude distillation unit. The experimental results of Australian light crude oil with the tube side surface temperatures between 200-260 oC and fluid velocity ranged 0.25 to 0.4m/s were used. The activati...

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Main Authors: Mohammad Reza Jafari Nasr, Mahdi Majidi Givi
Format: Article
Language:English
Published: Iranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECR 2006-09-01
Series:Iranian Journal of Chemistry & Chemical Engineering
Subjects:
Online Access:http://www.ijcce.ac.ir/article_8049_e36987265bb56774a92fc91e3b4f1c85.pdf
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author Mohammad Reza Jafari Nasr
Mahdi Majidi Givi
author_facet Mohammad Reza Jafari Nasr
Mahdi Majidi Givi
author_sort Mohammad Reza Jafari Nasr
collection DOAJ
description The Propose of this paper is to introduce a new model for crude oil fouling in preheat trains of crude distillation unit. The experimental results of Australian light crude oil with the tube side surface temperatures between 200-260 oC and fluid velocity ranged 0.25 to 0.4m/s were used. The activation energy of chemical reaction depends on the surface temperature has been calculated.  The model includes two parts. In the first part it deals with a term for fouling formation and the second part with a term for fouling removal due to chemical and tube wall shear stress respectively. By using the proposed model for Australian crude oil based on Saleh et.al.data the fouling formation rate has been calculated and the threshold curves to identify fouling and no fouling formation zones have been drawn. Finally, a model was developed for various temperatures and shows better results in relation to available models.
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spelling doaj.art-bcbb821591d44ae788dd95653bd8d3902022-12-22T00:55:59ZengIranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECRIranian Journal of Chemistry & Chemical Engineering1021-99861021-99862006-09-0125349588049Application of Threshold Model with Various Tube Wall Temperatures for Crude Oil Preheat Train FoulingMohammad Reza Jafari Nasr0Mahdi Majidi Givi1Petrochemical Research & Technology Company (NPC-RT), P.O.Box 14385 Tehran, I.R. IRANShahid Cheraghi Industry, Shahid Hemmat Industrial Group, Aerospace Industries Organization, Defense Ministry, Tehran, I.R. IRANThe Propose of this paper is to introduce a new model for crude oil fouling in preheat trains of crude distillation unit. The experimental results of Australian light crude oil with the tube side surface temperatures between 200-260 oC and fluid velocity ranged 0.25 to 0.4m/s were used. The activation energy of chemical reaction depends on the surface temperature has been calculated.  The model includes two parts. In the first part it deals with a term for fouling formation and the second part with a term for fouling removal due to chemical and tube wall shear stress respectively. By using the proposed model for Australian crude oil based on Saleh et.al.data the fouling formation rate has been calculated and the threshold curves to identify fouling and no fouling formation zones have been drawn. Finally, a model was developed for various temperatures and shows better results in relation to available models.http://www.ijcce.ac.ir/article_8049_e36987265bb56774a92fc91e3b4f1c85.pdfheat exchangerfoulingmodelingcrude oildistillation unit
spellingShingle Mohammad Reza Jafari Nasr
Mahdi Majidi Givi
Application of Threshold Model with Various Tube Wall Temperatures for Crude Oil Preheat Train Fouling
Iranian Journal of Chemistry & Chemical Engineering
heat exchanger
fouling
modeling
crude oil
distillation unit
title Application of Threshold Model with Various Tube Wall Temperatures for Crude Oil Preheat Train Fouling
title_full Application of Threshold Model with Various Tube Wall Temperatures for Crude Oil Preheat Train Fouling
title_fullStr Application of Threshold Model with Various Tube Wall Temperatures for Crude Oil Preheat Train Fouling
title_full_unstemmed Application of Threshold Model with Various Tube Wall Temperatures for Crude Oil Preheat Train Fouling
title_short Application of Threshold Model with Various Tube Wall Temperatures for Crude Oil Preheat Train Fouling
title_sort application of threshold model with various tube wall temperatures for crude oil preheat train fouling
topic heat exchanger
fouling
modeling
crude oil
distillation unit
url http://www.ijcce.ac.ir/article_8049_e36987265bb56774a92fc91e3b4f1c85.pdf
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AT mahdimajidigivi applicationofthresholdmodelwithvarioustubewalltemperaturesforcrudeoilpreheattrainfouling