Kinetic Study of Ethyl Mercaptan Oxidation in Presence of Merox Catalyst

Mercaptans are commonly present in petroleum products. Their foul odor and highly corrosive nature make them the most undesirable sulfur compounds so they should be removed because of environmental issues. Merox process is used for oxidation of mercaptans to disulfide using air in the presence of al...

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Main Authors: Mohammad Reza Ehsani, Ali Reza Safadoost, Reza Avazzadeh, Azita Barkhordari
Format: Article
Language:English
Published: Iranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECR 2013-06-01
Series:Iranian Journal of Chemistry & Chemical Engineering
Subjects:
Online Access:http://www.ijcce.ac.ir/article_5890_2bf76b00973ff5fd70de8c39b073ecf8.pdf
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author Mohammad Reza Ehsani
Ali Reza Safadoost
Reza Avazzadeh
Azita Barkhordari
author_facet Mohammad Reza Ehsani
Ali Reza Safadoost
Reza Avazzadeh
Azita Barkhordari
author_sort Mohammad Reza Ehsani
collection DOAJ
description Mercaptans are commonly present in petroleum products. Their foul odor and highly corrosive nature make them the most undesirable sulfur compounds so they should be removed because of environmental issues. Merox process is used for oxidation of mercaptans to disulfide using air in the presence of alkaline solution and Merox catalyst. In this paper, due to lack of information about the kinetic of mercaptan oxidation, the kinetic of conversion of ethyl mercaptan in gasoline and kerosene is studied in order to be able to model and simulate this process. The experiments were carried out in a semi-batch bubble column reactor and it was proved that increasing the temperature, improves the rate of the reaction. The obtained results were analyzed and a correlation for the rate of reaction is suggested. The suggested equation is first-order with respect to mercaptan concentration.
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spelling doaj.art-1367787242c14e849a9466aaee25089d2022-12-21T23:16:15ZengIranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECRIranian Journal of Chemistry & Chemical Engineering1021-99861021-99862013-06-0132271805890Kinetic Study of Ethyl Mercaptan Oxidation in Presence of Merox CatalystMohammad Reza Ehsani0Ali Reza Safadoost1Reza Avazzadeh2Azita Barkhordari3Department of Chemical Engineering, Isfahan University of Technology, P.O. Box 84156-83111 Isfahan, I.R. IRANDepartment of Chemical Engineering, Isfahan University of Technology, P.O. Box 84156-83111 Isfahan, I.R. IRANDepartment of Chemical Engineering, Isfahan University of Technology, P.O. Box 84156-83111 Isfahan, I.R. IRANResearch and Tyechnology Deviation of NIORDC, Tehran, I.R. IRANMercaptans are commonly present in petroleum products. Their foul odor and highly corrosive nature make them the most undesirable sulfur compounds so they should be removed because of environmental issues. Merox process is used for oxidation of mercaptans to disulfide using air in the presence of alkaline solution and Merox catalyst. In this paper, due to lack of information about the kinetic of mercaptan oxidation, the kinetic of conversion of ethyl mercaptan in gasoline and kerosene is studied in order to be able to model and simulate this process. The experiments were carried out in a semi-batch bubble column reactor and it was proved that increasing the temperature, improves the rate of the reaction. The obtained results were analyzed and a correlation for the rate of reaction is suggested. The suggested equation is first-order with respect to mercaptan concentration.http://www.ijcce.ac.ir/article_5890_2bf76b00973ff5fd70de8c39b073ecf8.pdfmeroxethyl mercaptanphthalocyaninecatalytic oxidationkinetic study
spellingShingle Mohammad Reza Ehsani
Ali Reza Safadoost
Reza Avazzadeh
Azita Barkhordari
Kinetic Study of Ethyl Mercaptan Oxidation in Presence of Merox Catalyst
Iranian Journal of Chemistry & Chemical Engineering
merox
ethyl mercaptan
phthalocyanine
catalytic oxidation
kinetic study
title Kinetic Study of Ethyl Mercaptan Oxidation in Presence of Merox Catalyst
title_full Kinetic Study of Ethyl Mercaptan Oxidation in Presence of Merox Catalyst
title_fullStr Kinetic Study of Ethyl Mercaptan Oxidation in Presence of Merox Catalyst
title_full_unstemmed Kinetic Study of Ethyl Mercaptan Oxidation in Presence of Merox Catalyst
title_short Kinetic Study of Ethyl Mercaptan Oxidation in Presence of Merox Catalyst
title_sort kinetic study of ethyl mercaptan oxidation in presence of merox catalyst
topic merox
ethyl mercaptan
phthalocyanine
catalytic oxidation
kinetic study
url http://www.ijcce.ac.ir/article_5890_2bf76b00973ff5fd70de8c39b073ecf8.pdf
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AT rezaavazzadeh kineticstudyofethylmercaptanoxidationinpresenceofmeroxcatalyst
AT azitabarkhordari kineticstudyofethylmercaptanoxidationinpresenceofmeroxcatalyst