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Removal of single and dual ring thiophene’s from dodecane using cavitation based processes

Utilising cavitation for enhancing oxidative desulphurization has been investigated for nearly-two decades with recent investigations shifting focus from low-capacity acoustic cavitation (AC) to scalable hydrodynamic cavitation (HC). This work focuses on developing a viable means for removing thioph...

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Autores principales: Delaney, Peter, Sarvothaman, Varaha P., Colgan, Ronan, Nagarajan, Sanjay, Deshmukh, Gunjan, Rooney, David, Robertson, Peter K.J., Ranade, Vivek V.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Elsevier 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9463457/
https://www.ncbi.nlm.nih.gov/pubmed/36063788
http://dx.doi.org/10.1016/j.ultsonch.2022.106148
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author Delaney, Peter
Sarvothaman, Varaha P.
Colgan, Ronan
Nagarajan, Sanjay
Deshmukh, Gunjan
Rooney, David
Robertson, Peter K.J.
Ranade, Vivek V.
author_facet Delaney, Peter
Sarvothaman, Varaha P.
Colgan, Ronan
Nagarajan, Sanjay
Deshmukh, Gunjan
Rooney, David
Robertson, Peter K.J.
Ranade, Vivek V.
author_sort Delaney, Peter
collection PubMed
description Utilising cavitation for enhancing oxidative desulphurization has been investigated for nearly-two decades with recent investigations shifting focus from low-capacity acoustic cavitation (AC) to scalable hydrodynamic cavitation (HC). This work focuses on developing a viable means for removing thiophene’s from fuels. In the first phase of this work, use of vortex based HC devices for removal of single and dual ring thiophenes from dodecane was investigated. HC was shown to be able to remove single ring thiophene from dodecane without using any external catalyst or additives. However, in absence of catalyst or additives, it was not possible to remove dual ring thiophenes such as dibenzothiophene using HC. Therefore, in the second phase of this work, various strategies based on use of catalyst or additives to augment cavitation based process were investigated. AC based experiments were opted for shortlisting suitable catalysts and additives for intensifying cavitation based processes. The influence of using oxidant (H(2)O(2)) and carboxylic acid catalysts on efficacy of removal of dual ring thiophenes is presented. Several conditions were tested, and the optimal volumetric ratios of 0.95 v/v % H(2)O(2) and 6.25 v/v % HCOOH was identified and utilised throughout the remainder of the study. Regeneration of extractant which accumulates oxidised sulphur species from dodecane was also investigated using AC. The additives and process conditions reported in this work are useful for enhancing desulphurization performance.
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spelling pubmed-94634572022-09-11 Removal of single and dual ring thiophene’s from dodecane using cavitation based processes Delaney, Peter Sarvothaman, Varaha P. Colgan, Ronan Nagarajan, Sanjay Deshmukh, Gunjan Rooney, David Robertson, Peter K.J. Ranade, Vivek V. Ultrason Sonochem Short Communication Utilising cavitation for enhancing oxidative desulphurization has been investigated for nearly-two decades with recent investigations shifting focus from low-capacity acoustic cavitation (AC) to scalable hydrodynamic cavitation (HC). This work focuses on developing a viable means for removing thiophene’s from fuels. In the first phase of this work, use of vortex based HC devices for removal of single and dual ring thiophenes from dodecane was investigated. HC was shown to be able to remove single ring thiophene from dodecane without using any external catalyst or additives. However, in absence of catalyst or additives, it was not possible to remove dual ring thiophenes such as dibenzothiophene using HC. Therefore, in the second phase of this work, various strategies based on use of catalyst or additives to augment cavitation based process were investigated. AC based experiments were opted for shortlisting suitable catalysts and additives for intensifying cavitation based processes. The influence of using oxidant (H(2)O(2)) and carboxylic acid catalysts on efficacy of removal of dual ring thiophenes is presented. Several conditions were tested, and the optimal volumetric ratios of 0.95 v/v % H(2)O(2) and 6.25 v/v % HCOOH was identified and utilised throughout the remainder of the study. Regeneration of extractant which accumulates oxidised sulphur species from dodecane was also investigated using AC. The additives and process conditions reported in this work are useful for enhancing desulphurization performance. Elsevier 2022-08-29 /pmc/articles/PMC9463457/ /pubmed/36063788 http://dx.doi.org/10.1016/j.ultsonch.2022.106148 Text en © 2022 The Author(s) https://creativecommons.org/licenses/by/4.0/This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Short Communication
Delaney, Peter
Sarvothaman, Varaha P.
Colgan, Ronan
Nagarajan, Sanjay
Deshmukh, Gunjan
Rooney, David
Robertson, Peter K.J.
Ranade, Vivek V.
Removal of single and dual ring thiophene’s from dodecane using cavitation based processes
title Removal of single and dual ring thiophene’s from dodecane using cavitation based processes
title_full Removal of single and dual ring thiophene’s from dodecane using cavitation based processes
title_fullStr Removal of single and dual ring thiophene’s from dodecane using cavitation based processes
title_full_unstemmed Removal of single and dual ring thiophene’s from dodecane using cavitation based processes
title_short Removal of single and dual ring thiophene’s from dodecane using cavitation based processes
title_sort removal of single and dual ring thiophene’s from dodecane using cavitation based processes
topic Short Communication
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9463457/
https://www.ncbi.nlm.nih.gov/pubmed/36063788
http://dx.doi.org/10.1016/j.ultsonch.2022.106148
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