Modeling and simulation of a pseudo-three-phase slurry bubble column reactor applied to the process of petroleum hydrodesulfurization
This work presents a new CFD model for the hydrodesulfurization process in the petroleum industry. The new model considers the loss of effectiveness of the catalyst by coupling a model that considers the physical structure of the catalyst. The hydrodesulfurization process takes place in a pseudo-thr...
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Veröffentlicht in: | Computers & chemical engineering 2009-06, Vol.33 (6), p.1115-1122 |
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creator | Matos, E.M. Guirardello, R. Mori, M. Nunhez, J.R. |
description | This work presents a new CFD model for the hydrodesulfurization process in the petroleum industry. The new model considers the loss of effectiveness of the catalyst by coupling a model that considers the physical structure of the catalyst. The hydrodesulfurization process takes place in a pseudo-three-phase fluidized-bed slurry bubble column reactor with liquid and gas flowing upwards. This reactor presents a transient behavior for the catalytic effectiveness due to the obstruction of the catalyst pores, caused mainly by parallel reactions of hydrodemetalization acting on the catalyst. The emphasis of this work is the introduction of a kinetic model for the reactivity reduction of the catalyst inside slurry bubble column reactors. The hydrodynamic model is simple and adopts an Eulerian–Eulerian approach, where the momentum and mass conservation equations are used to describe the two-phase fluid dynamic fields. The
k–
ɛ model is used to account for turbulence. The kinetic model considers the reactions controlled by diffusion and occurring on the catalyst pores, which are obstructed along the process by the hydrodemetalization by-products. The model presented in this work allows for an assessment of the influence of the operational conditions of the reactor, such as liquid and gas feed velocities, as well as catalyst properties. The estimation of the yield of the process takes into account the transient activity of the catalyst. |
doi_str_mv | 10.1016/j.compchemeng.2008.12.011 |
format | Article |
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k–
ɛ model is used to account for turbulence. The kinetic model considers the reactions controlled by diffusion and occurring on the catalyst pores, which are obstructed along the process by the hydrodemetalization by-products. The model presented in this work allows for an assessment of the influence of the operational conditions of the reactor, such as liquid and gas feed velocities, as well as catalyst properties. The estimation of the yield of the process takes into account the transient activity of the catalyst.</description><identifier>ISSN: 0098-1354</identifier><identifier>EISSN: 1873-4375</identifier><identifier>DOI: 10.1016/j.compchemeng.2008.12.011</identifier><language>eng</language><publisher>Elsevier Ltd</publisher><subject>CFD model ; Hydrodemetalization ; Hydrodesulfurization ; k– ɛ model ; Slurry bubble column ; Two-phase flow</subject><ispartof>Computers & chemical engineering, 2009-06, Vol.33 (6), p.1115-1122</ispartof><rights>2009 Elsevier Ltd</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c421t-fc3bbc8ba678b3445d277fb08ad32895ccbcb41ed98506c8cb56a1336693d9803</citedby><cites>FETCH-LOGICAL-c421t-fc3bbc8ba678b3445d277fb08ad32895ccbcb41ed98506c8cb56a1336693d9803</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.compchemeng.2008.12.011$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>315,781,785,3551,27929,27930,46000</link.rule.ids></links><search><creatorcontrib>Matos, E.M.</creatorcontrib><creatorcontrib>Guirardello, R.</creatorcontrib><creatorcontrib>Mori, M.</creatorcontrib><creatorcontrib>Nunhez, J.R.</creatorcontrib><title>Modeling and simulation of a pseudo-three-phase slurry bubble column reactor applied to the process of petroleum hydrodesulfurization</title><title>Computers & chemical engineering</title><description>This work presents a new CFD model for the hydrodesulfurization process in the petroleum industry. The new model considers the loss of effectiveness of the catalyst by coupling a model that considers the physical structure of the catalyst. The hydrodesulfurization process takes place in a pseudo-three-phase fluidized-bed slurry bubble column reactor with liquid and gas flowing upwards. This reactor presents a transient behavior for the catalytic effectiveness due to the obstruction of the catalyst pores, caused mainly by parallel reactions of hydrodemetalization acting on the catalyst. The emphasis of this work is the introduction of a kinetic model for the reactivity reduction of the catalyst inside slurry bubble column reactors. The hydrodynamic model is simple and adopts an Eulerian–Eulerian approach, where the momentum and mass conservation equations are used to describe the two-phase fluid dynamic fields. The
k–
ɛ model is used to account for turbulence. The kinetic model considers the reactions controlled by diffusion and occurring on the catalyst pores, which are obstructed along the process by the hydrodemetalization by-products. The model presented in this work allows for an assessment of the influence of the operational conditions of the reactor, such as liquid and gas feed velocities, as well as catalyst properties. The estimation of the yield of the process takes into account the transient activity of the catalyst.</description><subject>CFD model</subject><subject>Hydrodemetalization</subject><subject>Hydrodesulfurization</subject><subject>k– ɛ model</subject><subject>Slurry bubble column</subject><subject>Two-phase flow</subject><issn>0098-1354</issn><issn>1873-4375</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2009</creationdate><recordtype>article</recordtype><recordid>eNqNkUuP1DAQhC0EEsPCfzAXOCVrx07iHNEIFqRdcYGz5Udn45ETBz-Qhjv_Gw_DgRPi1FLrq6puFUKvKWkpocPtqTVh3c0CK2yPbUeIaGnXEkqfoAMVI2s4G_un6EDIJBrKev4cvUjpRAjpuBAH9PMhWPBue8Rqszi5tXiVXdhwmLHCe4JiQ5OXCNDsi0qAky8xnrEuWnvAJviybjiCMjlErPbdO7A4B5wXwHsMBlK6eO2QY_BQVrycbayZqfi5RPfjd9pL9GxWPsGrP_MGff3w_svxY3P_-e7T8d19Y3hHczMbprURWg2j0Izz3nbjOGsilGWdmHpjtNGcgp1ETwYjjO4HRRkbhonVHWE36O3Vt172rUDKcnXJgPdqg1CSnAgbGOm7qZJv_knWdM6ncajgdAVNDClFmOUe3ariWVIiLxXJk_yrInmpSNJO1oqq9njVQv35u4Mok3GwGbAugsnSBvcfLr8AsB-kLQ</recordid><startdate>20090616</startdate><enddate>20090616</enddate><creator>Matos, E.M.</creator><creator>Guirardello, R.</creator><creator>Mori, M.</creator><creator>Nunhez, J.R.</creator><general>Elsevier Ltd</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7SC</scope><scope>7U5</scope><scope>8FD</scope><scope>JQ2</scope><scope>L7M</scope><scope>L~C</scope><scope>L~D</scope></search><sort><creationdate>20090616</creationdate><title>Modeling and simulation of a pseudo-three-phase slurry bubble column reactor applied to the process of petroleum hydrodesulfurization</title><author>Matos, E.M. ; Guirardello, R. ; Mori, M. ; Nunhez, J.R.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c421t-fc3bbc8ba678b3445d277fb08ad32895ccbcb41ed98506c8cb56a1336693d9803</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2009</creationdate><topic>CFD model</topic><topic>Hydrodemetalization</topic><topic>Hydrodesulfurization</topic><topic>k– ɛ model</topic><topic>Slurry bubble column</topic><topic>Two-phase flow</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Matos, E.M.</creatorcontrib><creatorcontrib>Guirardello, R.</creatorcontrib><creatorcontrib>Mori, M.</creatorcontrib><creatorcontrib>Nunhez, J.R.</creatorcontrib><collection>CrossRef</collection><collection>Computer and Information Systems Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>Technology Research Database</collection><collection>ProQuest Computer Science Collection</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>Computer and Information Systems Abstracts Academic</collection><collection>Computer and Information Systems Abstracts Professional</collection><jtitle>Computers & chemical engineering</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Matos, E.M.</au><au>Guirardello, R.</au><au>Mori, M.</au><au>Nunhez, J.R.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Modeling and simulation of a pseudo-three-phase slurry bubble column reactor applied to the process of petroleum hydrodesulfurization</atitle><jtitle>Computers & chemical engineering</jtitle><date>2009-06-16</date><risdate>2009</risdate><volume>33</volume><issue>6</issue><spage>1115</spage><epage>1122</epage><pages>1115-1122</pages><issn>0098-1354</issn><eissn>1873-4375</eissn><abstract>This work presents a new CFD model for the hydrodesulfurization process in the petroleum industry. The new model considers the loss of effectiveness of the catalyst by coupling a model that considers the physical structure of the catalyst. The hydrodesulfurization process takes place in a pseudo-three-phase fluidized-bed slurry bubble column reactor with liquid and gas flowing upwards. This reactor presents a transient behavior for the catalytic effectiveness due to the obstruction of the catalyst pores, caused mainly by parallel reactions of hydrodemetalization acting on the catalyst. The emphasis of this work is the introduction of a kinetic model for the reactivity reduction of the catalyst inside slurry bubble column reactors. The hydrodynamic model is simple and adopts an Eulerian–Eulerian approach, where the momentum and mass conservation equations are used to describe the two-phase fluid dynamic fields. The
k–
ɛ model is used to account for turbulence. The kinetic model considers the reactions controlled by diffusion and occurring on the catalyst pores, which are obstructed along the process by the hydrodemetalization by-products. The model presented in this work allows for an assessment of the influence of the operational conditions of the reactor, such as liquid and gas feed velocities, as well as catalyst properties. The estimation of the yield of the process takes into account the transient activity of the catalyst.</abstract><pub>Elsevier Ltd</pub><doi>10.1016/j.compchemeng.2008.12.011</doi><tpages>8</tpages></addata></record> |
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source | Access via ScienceDirect (Elsevier) |
subjects | CFD model Hydrodemetalization Hydrodesulfurization k– ɛ model Slurry bubble column Two-phase flow |
title | Modeling and simulation of a pseudo-three-phase slurry bubble column reactor applied to the process of petroleum hydrodesulfurization |
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