Improvement of the p-xylene and benzene production process through the disproportionation of the toluene

Treballs Finals de Màster d'Enginyeria Química, Facultat de Química, Universitat de Barcelona. Curs: 2021-2022. Tutor: Jordi Bonet Ruiz

Bibliographic Details
Author: Valldepérez González, Xavier
Format: master thesis
Publication Date:2022
Country:España
Institution:Universidad de Barcelona
Repository:Dipòsit Digital de la UB
OAI Identifier:oai:diposit.ub.edu:2445/204978
Online Access:https://hdl.handle.net/2445/204978
Access Level:Open access
Keyword:Enginyeria química
Hidrocarburs aromàtics
Treballs de fi de màster
Benzè
Chemical engineering
Aromatic hydrocarbons
Benzene
Master's thesis
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spelling Improvement of the p-xylene and benzene production process through the disproportionation of the tolueneMejora de la producción de p-xileno y benceno mediante la desproporción del toluenoValldepérez González, XavierEnginyeria químicaHidrocarburs aromàticsTreballs de fi de màsterBenzèChemical engineeringAromatic hydrocarbonsBenzeneMaster's thesisTreballs Finals de Màster d'Enginyeria Química, Facultat de Química, Universitat de Barcelona. Curs: 2021-2022. Tutor: Jordi Bonet RuizThis document contains the extension of the thesis carried out during the degree which consisted of the design of a plant to obtain p-xylene and benzene by disproportionation reaction of the toluene that is present in the bottom stream of the hydrocarbon column that is currently sent to the gasoline blend. The expansion of the work consists of the purification of the xylene mixture and maximization of the production of p-xylene, as well as the realization of elements not designed during the reference project. The new unit starts with the modification of the xylene separation column in which previously p-xylene and m-xylene were obtained by means of a 132-tray distillation column, now separating the heavy aromatics from the rest. The stream containing the xylenes is sent to the continuous adsorption column, using hydrated Y-type zeolite as adsorbent, the physisorption is carried out by means of SMB technology, simulated moving bed technology. The stream rich in p-xylene which is separated by means of a distillation column obtaining the product, the desorbent is obtained which is recirculated to the adsorption chamber. The stream that does not contain p-xylene is sent to the desorbent recovery zone and the desorbent-free stream is sent to the reaction zone where the isomerization of the xylenes and the dealkylation of the ethylbenzene is carried out in order to obtain benzene at 10 bar and 420 °C. The output stream from the isomerization unit is sent to the benzene separation zone and then sent back to the adsorption column. Once the process and equipment had been designed, the corresponding P&IDs were drawn up together with the list of pipes. Finally, in order to check the feasibility of the project and its possible implementation, an economic study was carried out. To carry out the process, an initial investment of 108 M€ is required. Considering the current market, assuming that the price of raw materials, products and their demand remains constant and, a IRR of 21.1 % and a NVP of 25.2 M€ are obtained in a period of 5 years. In addition, the payback of the process is 3 years.Bonet i Ruiz, Jordi2022info:eu-repo/semantics/masterThesisapplication/pdfhttps://hdl.handle.net/2445/204978Màster Oficial - Enginyeria Químicareponame:Dipòsit Digital de la UBinstname:Universidad de BarcelonaIngléscc-by-nc-nd (c) Valldepérez, 2022http://creativecommons.org/licenses/by-nc-nd/3.0/es/info:eu-repo/semantics/openAccessoai:diposit.ub.edu:2445/2049782026-05-27T06:46:51Z
dc.title.none.fl_str_mv Improvement of the p-xylene and benzene production process through the disproportionation of the toluene
Mejora de la producción de p-xileno y benceno mediante la desproporción del tolueno
title Improvement of the p-xylene and benzene production process through the disproportionation of the toluene
spellingShingle Improvement of the p-xylene and benzene production process through the disproportionation of the toluene
Valldepérez González, Xavier
Enginyeria química
Hidrocarburs aromàtics
Treballs de fi de màster
Benzè
Chemical engineering
Aromatic hydrocarbons
Benzene
Master's thesis
title_short Improvement of the p-xylene and benzene production process through the disproportionation of the toluene
title_full Improvement of the p-xylene and benzene production process through the disproportionation of the toluene
title_fullStr Improvement of the p-xylene and benzene production process through the disproportionation of the toluene
title_full_unstemmed Improvement of the p-xylene and benzene production process through the disproportionation of the toluene
title_sort Improvement of the p-xylene and benzene production process through the disproportionation of the toluene
dc.creator.none.fl_str_mv Valldepérez González, Xavier
author Valldepérez González, Xavier
author_facet Valldepérez González, Xavier
author_role author
dc.contributor.none.fl_str_mv Bonet i Ruiz, Jordi
dc.subject.none.fl_str_mv Enginyeria química
Hidrocarburs aromàtics
Treballs de fi de màster
Benzè
Chemical engineering
Aromatic hydrocarbons
Benzene
Master's thesis
topic Enginyeria química
Hidrocarburs aromàtics
Treballs de fi de màster
Benzè
Chemical engineering
Aromatic hydrocarbons
Benzene
Master's thesis
description Treballs Finals de Màster d'Enginyeria Química, Facultat de Química, Universitat de Barcelona. Curs: 2021-2022. Tutor: Jordi Bonet Ruiz
publishDate 2022
dc.date.none.fl_str_mv 2022
dc.type.none.fl_str_mv info:eu-repo/semantics/masterThesis
format masterThesis
dc.identifier.none.fl_str_mv https://hdl.handle.net/2445/204978
url https://hdl.handle.net/2445/204978
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.rights.none.fl_str_mv cc-by-nc-nd (c) Valldepérez, 2022
http://creativecommons.org/licenses/by-nc-nd/3.0/es/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv cc-by-nc-nd (c) Valldepérez, 2022
http://creativecommons.org/licenses/by-nc-nd/3.0/es/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv Màster Oficial - Enginyeria Química
reponame:Dipòsit Digital de la UB
instname:Universidad de Barcelona
instname_str Universidad de Barcelona
reponame_str Dipòsit Digital de la UB
collection Dipòsit Digital de la UB
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869414118395478016
score 15.301603

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