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Preparation and characterization of petroleum-based mesophase pitch by thermal condensation with in-process hydrogenation
A petroleum aromatic-rich component was used to prepare mesophase pitch by thermal condensation. In-process hydrogenation method was employed to achieve the hydrogenation reaction of intermediates generated during the thermal reaction using tetrahydronaphthalene (THN) as a hydrogen donor. Impacts of...
Autores principales: | , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
The Royal Society of Chemistry
2018
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9085407/ https://www.ncbi.nlm.nih.gov/pubmed/35546854 http://dx.doi.org/10.1039/c8ra04679d |
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author | Li, Ming Zhang, Yadong Yu, Shitao Xie, Congxia Liu, Dong Liu, Shiwei Zhao, Ruiyang Bian, Bing |
author_facet | Li, Ming Zhang, Yadong Yu, Shitao Xie, Congxia Liu, Dong Liu, Shiwei Zhao, Ruiyang Bian, Bing |
author_sort | Li, Ming |
collection | PubMed |
description | A petroleum aromatic-rich component was used to prepare mesophase pitch by thermal condensation. In-process hydrogenation method was employed to achieve the hydrogenation reaction of intermediates generated during the thermal reaction using tetrahydronaphthalene (THN) as a hydrogen donor. Impacts of in-process hydrogenation on the properties of intermediates and mesophase pitches were investigated. It was found that the in-process hydrogenation was conducive to the generation of hydrogenated intermediates with concentrated extracted component distribution, uniform molecular structure and abundant naphthenic structures. The characterizations of mesophase pitches showed that the in-process hydrogenation contributed to the preparation of mesophase pitch with concentrated extracted component distribution, low softening point, large domain structure and ordered crystal structure. This was due to the increasing contents of naphthenic structures in intermediates. Moreover, the increase of methylene bridges in the product was the critical reason for improving the product's properties. |
format | Online Article Text |
id | pubmed-9085407 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
publisher | The Royal Society of Chemistry |
record_format | MEDLINE/PubMed |
spelling | pubmed-90854072022-05-10 Preparation and characterization of petroleum-based mesophase pitch by thermal condensation with in-process hydrogenation Li, Ming Zhang, Yadong Yu, Shitao Xie, Congxia Liu, Dong Liu, Shiwei Zhao, Ruiyang Bian, Bing RSC Adv Chemistry A petroleum aromatic-rich component was used to prepare mesophase pitch by thermal condensation. In-process hydrogenation method was employed to achieve the hydrogenation reaction of intermediates generated during the thermal reaction using tetrahydronaphthalene (THN) as a hydrogen donor. Impacts of in-process hydrogenation on the properties of intermediates and mesophase pitches were investigated. It was found that the in-process hydrogenation was conducive to the generation of hydrogenated intermediates with concentrated extracted component distribution, uniform molecular structure and abundant naphthenic structures. The characterizations of mesophase pitches showed that the in-process hydrogenation contributed to the preparation of mesophase pitch with concentrated extracted component distribution, low softening point, large domain structure and ordered crystal structure. This was due to the increasing contents of naphthenic structures in intermediates. Moreover, the increase of methylene bridges in the product was the critical reason for improving the product's properties. The Royal Society of Chemistry 2018-08-29 /pmc/articles/PMC9085407/ /pubmed/35546854 http://dx.doi.org/10.1039/c8ra04679d Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by-nc/3.0/ |
spellingShingle | Chemistry Li, Ming Zhang, Yadong Yu, Shitao Xie, Congxia Liu, Dong Liu, Shiwei Zhao, Ruiyang Bian, Bing Preparation and characterization of petroleum-based mesophase pitch by thermal condensation with in-process hydrogenation |
title | Preparation and characterization of petroleum-based mesophase pitch by thermal condensation with in-process hydrogenation |
title_full | Preparation and characterization of petroleum-based mesophase pitch by thermal condensation with in-process hydrogenation |
title_fullStr | Preparation and characterization of petroleum-based mesophase pitch by thermal condensation with in-process hydrogenation |
title_full_unstemmed | Preparation and characterization of petroleum-based mesophase pitch by thermal condensation with in-process hydrogenation |
title_short | Preparation and characterization of petroleum-based mesophase pitch by thermal condensation with in-process hydrogenation |
title_sort | preparation and characterization of petroleum-based mesophase pitch by thermal condensation with in-process hydrogenation |
topic | Chemistry |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9085407/ https://www.ncbi.nlm.nih.gov/pubmed/35546854 http://dx.doi.org/10.1039/c8ra04679d |
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