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Synthesis of 2,5-dimethylhexene by isobutene dimerization with H(2)S co-feeding
This study investigates the effect of hydrogen sulfide (H(2)S) co-feeding on the synthesis of 2,5-dimethyl-1-hexene, 2,5-dimethyl-2-hexene, and 2,5-dimethylhexane (2,5-DMHs), useful compounds, using the dimerization of isobutene under mild pressure conditions. The dimerization of isobutene did not p...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
The Royal Society of Chemistry
2023
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10170301/ https://www.ncbi.nlm.nih.gov/pubmed/37180019 http://dx.doi.org/10.1039/d3ra01324c |
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author | Watanabe, Ryo Tanikawa, Riku Kurosaki, Arisa Oshima, Kazumasa Kishida, Masahiro Verma, Priyanka Fukuhara, Choji |
author_facet | Watanabe, Ryo Tanikawa, Riku Kurosaki, Arisa Oshima, Kazumasa Kishida, Masahiro Verma, Priyanka Fukuhara, Choji |
author_sort | Watanabe, Ryo |
collection | PubMed |
description | This study investigates the effect of hydrogen sulfide (H(2)S) co-feeding on the synthesis of 2,5-dimethyl-1-hexene, 2,5-dimethyl-2-hexene, and 2,5-dimethylhexane (2,5-DMHs), useful compounds, using the dimerization of isobutene under mild pressure conditions. The dimerization of isobutene did not proceed in the absence of H(2)S, whereas the desired products of 2,5-DMHs were produced under H(2)S co-feeding conditions. The effect of reactor size on the dimerization reaction was then examined, and the optimal reactor was discussed. To enhance the yield of 2,5-DMHs, we changed the reaction conditions of the temperature, molar ratio of isobutene to H(2)S (iso-C(4)([double bond, length as m-dash])/H(2)S) in the feed gas, and the total feed pressure. The optimum reaction condition was at 375 °C and 2/1 of iso-C(4)([double bond, length as m-dash])/H(2)S. The product of 2,5-DMHs monotonously increased by an increment of total pressure from 1.0 to 3.0 atm with a fixed iso-C(4)([double bond, length as m-dash])/H(2)S ratio at 2/1. |
format | Online Article Text |
id | pubmed-10170301 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | The Royal Society of Chemistry |
record_format | MEDLINE/PubMed |
spelling | pubmed-101703012023-05-11 Synthesis of 2,5-dimethylhexene by isobutene dimerization with H(2)S co-feeding Watanabe, Ryo Tanikawa, Riku Kurosaki, Arisa Oshima, Kazumasa Kishida, Masahiro Verma, Priyanka Fukuhara, Choji RSC Adv Chemistry This study investigates the effect of hydrogen sulfide (H(2)S) co-feeding on the synthesis of 2,5-dimethyl-1-hexene, 2,5-dimethyl-2-hexene, and 2,5-dimethylhexane (2,5-DMHs), useful compounds, using the dimerization of isobutene under mild pressure conditions. The dimerization of isobutene did not proceed in the absence of H(2)S, whereas the desired products of 2,5-DMHs were produced under H(2)S co-feeding conditions. The effect of reactor size on the dimerization reaction was then examined, and the optimal reactor was discussed. To enhance the yield of 2,5-DMHs, we changed the reaction conditions of the temperature, molar ratio of isobutene to H(2)S (iso-C(4)([double bond, length as m-dash])/H(2)S) in the feed gas, and the total feed pressure. The optimum reaction condition was at 375 °C and 2/1 of iso-C(4)([double bond, length as m-dash])/H(2)S. The product of 2,5-DMHs monotonously increased by an increment of total pressure from 1.0 to 3.0 atm with a fixed iso-C(4)([double bond, length as m-dash])/H(2)S ratio at 2/1. The Royal Society of Chemistry 2023-05-10 /pmc/articles/PMC10170301/ /pubmed/37180019 http://dx.doi.org/10.1039/d3ra01324c Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by-nc/3.0/ |
spellingShingle | Chemistry Watanabe, Ryo Tanikawa, Riku Kurosaki, Arisa Oshima, Kazumasa Kishida, Masahiro Verma, Priyanka Fukuhara, Choji Synthesis of 2,5-dimethylhexene by isobutene dimerization with H(2)S co-feeding |
title | Synthesis of 2,5-dimethylhexene by isobutene dimerization with H(2)S co-feeding |
title_full | Synthesis of 2,5-dimethylhexene by isobutene dimerization with H(2)S co-feeding |
title_fullStr | Synthesis of 2,5-dimethylhexene by isobutene dimerization with H(2)S co-feeding |
title_full_unstemmed | Synthesis of 2,5-dimethylhexene by isobutene dimerization with H(2)S co-feeding |
title_short | Synthesis of 2,5-dimethylhexene by isobutene dimerization with H(2)S co-feeding |
title_sort | synthesis of 2,5-dimethylhexene by isobutene dimerization with h(2)s co-feeding |
topic | Chemistry |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10170301/ https://www.ncbi.nlm.nih.gov/pubmed/37180019 http://dx.doi.org/10.1039/d3ra01324c |
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