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Fast, non-extractive, and ultradeep desulfurization of diesel in an oscillatory baffled reactor

Lookup NU author(s): Professor Anh Phan, Professor Adam Harvey



This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (CC BY-NC-ND).


© 2021Sulfur compounds are major contaminants in diesel fuels and cause significant negative impacts on the environment, human health, and petroleum product quality. Oxidative desulfurization (ODS) has gained attention due to relatively mild operating conditions. However, ODS requires significant improvements in terms of productivity, reaction time, and conversion. This study reports the development of a highly efficient, rapid ODS process, in an oscillatory baffled reactor (OBR), to allow continuous, safe dibenzothiophene (DBT) removal. DBT conversion was studied as a function of temperature, residence time, oscillation frequency, and oscillation amplitude. By optimizing the operating conditions, up to 94 % DBT could be removed without further extraction in 3 min, at 80 °C, 4 Hz, and 6 mm. This is a substantial increase over comparable processes at this temperature and furthermore has been conducted in a reactor that scales up predictably, hence it is probable that this performance can be realized at an industrial scale.

Publication metadata

Author(s): Humadi JI, Gheni SA, Ahmed SMR, Abdullah GH, Phan AN, Harvey AP

Publication type: Article

Publication status: Published

Journal: Process Safety and Environmental Protection

Year: 2021

Volume: 152

Pages: 178-187

Print publication date: 01/08/2021

Online publication date: 26/05/2021

Acceptance date: 23/05/2021

Date deposited: 06/07/2021

ISSN (print): 0957-5820

Publisher: Institution of Chemical Engineers


DOI: 10.1016/j.psep.2021.05.028


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