Differential heats, isotherm and entropies of n-pentane adsorption on LiZSM-5 and CsZSM-5 zeolites
Artificially synthesised zeolites are widely used in water purification devices as adsorbents, ion exchangers, molecular sieves; they are used as electron donors and acceptors. Also, zeolites are currently the most important catalysts for the processing of various hydrocarbon raw materials. Syntheti...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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EDP Sciences
2023-01-01
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| Series: | E3S Web of Conferences |
| Online Access: | https://www.e3s-conferences.org/articles/e3sconf/pdf/2023/95/e3sconf_emmft2023_02008.pdf |
| _version_ | 1827373305575768064 |
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| author | Bakhronov Khayot Ergashev Oybek Karimov Khasan Akhmedova Nodira Absalyamova Ilmira Abdullayeva Shoira |
| author_facet | Bakhronov Khayot Ergashev Oybek Karimov Khasan Akhmedova Nodira Absalyamova Ilmira Abdullayeva Shoira |
| author_sort | Bakhronov Khayot |
| collection | DOAJ |
| description | Artificially synthesised zeolites are widely used in water purification devices as adsorbents, ion exchangers, molecular sieves; they are used as electron donors and acceptors. Also, zeolites are currently the most important catalysts for the processing of various hydrocarbon raw materials. Synthetic zeolites ZSM-5 are highly efficient catalysts of these processes. For o characterisation of zeolite channels and estimation of sorption volume npentane are the most suitable. n-Pentane fills all sorption space and adsorbed with higher energy. This paper presents the results of the basic thermodynamic characteristics and isotherms of n-pentane adsorption in Cs3,17ZSM- 5 and Li3,37ZSM-5 zeolites at 303 K. A system consisting of a universal high-vacuum adsorption unit and a Tian-Calvet type differential modified microcalorimeter, DAC-1-1A, coupled to it was used to measure isotherms and differential heats of adsorption. The correlation between adsorption-energy characteristics was found and the molecular mechanism of n-pentane adsorption in CsZSM-5 and LiZSM-5 zeolites in the whole filling region was revealed. |
| first_indexed | 2024-03-08T11:14:57Z |
| format | Article |
| id | doaj.art-10b7a8e5f686465ab5f62d8e2a2a89a5 |
| institution | Directory Open Access Journal |
| issn | 2267-1242 |
| language | English |
| last_indexed | 2024-03-08T11:14:57Z |
| publishDate | 2023-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | E3S Web of Conferences |
| spelling | doaj.art-10b7a8e5f686465ab5f62d8e2a2a89a52024-01-26T10:36:36ZengEDP SciencesE3S Web of Conferences2267-12422023-01-014580200810.1051/e3sconf/202345802008e3sconf_emmft2023_02008Differential heats, isotherm and entropies of n-pentane adsorption on LiZSM-5 and CsZSM-5 zeolitesBakhronov Khayot0Ergashev Oybek1Karimov Khasan2Akhmedova Nodira3Absalyamova Ilmira4Abdullayeva Shoira5Tashkent University of Information Technologies named after Muhammad al-KhwarizmiNamangan Institute of Engineering and TechnologyTashkent University of Information Technologies named after Muhammad al-KhwarizmiTashkent University of Information Technologies named after Muhammad al-KhwarizmiTashkent University of Information Technologies named after Muhammad al-KhwarizmiTashkent University of Information Technologies named after Muhammad al-KhwarizmiArtificially synthesised zeolites are widely used in water purification devices as adsorbents, ion exchangers, molecular sieves; they are used as electron donors and acceptors. Also, zeolites are currently the most important catalysts for the processing of various hydrocarbon raw materials. Synthetic zeolites ZSM-5 are highly efficient catalysts of these processes. For o characterisation of zeolite channels and estimation of sorption volume npentane are the most suitable. n-Pentane fills all sorption space and adsorbed with higher energy. This paper presents the results of the basic thermodynamic characteristics and isotherms of n-pentane adsorption in Cs3,17ZSM- 5 and Li3,37ZSM-5 zeolites at 303 K. A system consisting of a universal high-vacuum adsorption unit and a Tian-Calvet type differential modified microcalorimeter, DAC-1-1A, coupled to it was used to measure isotherms and differential heats of adsorption. The correlation between adsorption-energy characteristics was found and the molecular mechanism of n-pentane adsorption in CsZSM-5 and LiZSM-5 zeolites in the whole filling region was revealed.https://www.e3s-conferences.org/articles/e3sconf/pdf/2023/95/e3sconf_emmft2023_02008.pdf |
| spellingShingle | Bakhronov Khayot Ergashev Oybek Karimov Khasan Akhmedova Nodira Absalyamova Ilmira Abdullayeva Shoira Differential heats, isotherm and entropies of n-pentane adsorption on LiZSM-5 and CsZSM-5 zeolites E3S Web of Conferences |
| title | Differential heats, isotherm and entropies of n-pentane adsorption on LiZSM-5 and CsZSM-5 zeolites |
| title_full | Differential heats, isotherm and entropies of n-pentane adsorption on LiZSM-5 and CsZSM-5 zeolites |
| title_fullStr | Differential heats, isotherm and entropies of n-pentane adsorption on LiZSM-5 and CsZSM-5 zeolites |
| title_full_unstemmed | Differential heats, isotherm and entropies of n-pentane adsorption on LiZSM-5 and CsZSM-5 zeolites |
| title_short | Differential heats, isotherm and entropies of n-pentane adsorption on LiZSM-5 and CsZSM-5 zeolites |
| title_sort | differential heats isotherm and entropies of n pentane adsorption on lizsm 5 and cszsm 5 zeolites |
| url | https://www.e3s-conferences.org/articles/e3sconf/pdf/2023/95/e3sconf_emmft2023_02008.pdf |
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