极性溶剂和水蒸气在 Sorbonorit B4 活性炭上的吸附行为

IF 0.7 4区工程技术 Q4 CHEMISTRY, APPLIED

Polish Journal of Chemical Technology Pub Date : 2024-01-11 DOI:10.2478/pjct-2023-0035

Dorota Downarowicz, Elżbieta Gabruś

{"title":"极性溶剂和水蒸气在 Sorbonorit B4 活性炭上的吸附行为","authors":"Dorota Downarowicz, Elżbieta Gabruś","doi":"10.2478/pjct-2023-0035","DOIUrl":null,"url":null,"abstract":"In this work, the affinity of the heterogeneous Sorbonorit B4 (SB4) activated carbon toward methyl ethyl ketone (MEK), isopropyl alcohol (IPA), n-propyl alcohol (NPA) and isobutyl alcohol (IBA), and water vapours was examined. Adsorption equilibrium measurements demonstrate a higher adsorption capacity of water vapour than organic compounds at relative pressures above 0.4. The adsorption capacities of SB4 at the same vapor pressure followed the order: NPA> IPA> MEK> IBA. The Langmuir, Dubinin-Radushkevich, Dubinin-Astakhov, and Toth isotherm models were chosen to describe experimental results. Based on the multi-temperature isotherms, the values of the isosteric heat of adsorption were determined for various adsorbate loading. The results indicate a strong influence of VOC molecule structures and the surface heterogeneity of SB4 on the adsorption efficiency. For IPA-SB4 pair, the maximum temperature rise in a fixed-bed bed in the adsorption process and the energy requirement for regeneration were calculated and experimentally verified.","PeriodicalId":20324,"journal":{"name":"Polish Journal of Chemical Technology","volume":null,"pages":null},"PeriodicalIF":0.7000,"publicationDate":"2024-01-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Adsorption behaviour of polar solvent and water vapours on Sorbonorit B4 activated carbon\",\"authors\":\"Dorota Downarowicz, Elżbieta Gabruś\",\"doi\":\"10.2478/pjct-2023-0035\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"In this work, the affinity of the heterogeneous Sorbonorit B4 (SB4) activated carbon toward methyl ethyl ketone (MEK), isopropyl alcohol (IPA), n-propyl alcohol (NPA) and isobutyl alcohol (IBA), and water vapours was examined. Adsorption equilibrium measurements demonstrate a higher adsorption capacity of water vapour than organic compounds at relative pressures above 0.4. The adsorption capacities of SB4 at the same vapor pressure followed the order: NPA> IPA> MEK> IBA. The Langmuir, Dubinin-Radushkevich, Dubinin-Astakhov, and Toth isotherm models were chosen to describe experimental results. Based on the multi-temperature isotherms, the values of the isosteric heat of adsorption were determined for various adsorbate loading. The results indicate a strong influence of VOC molecule structures and the surface heterogeneity of SB4 on the adsorption efficiency. For IPA-SB4 pair, the maximum temperature rise in a fixed-bed bed in the adsorption process and the energy requirement for regeneration were calculated and experimentally verified.\",\"PeriodicalId\":20324,\"journal\":{\"name\":\"Polish Journal of Chemical Technology\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.7000,\"publicationDate\":\"2024-01-11\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Polish Journal of Chemical Technology\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://doi.org/10.2478/pjct-2023-0035\",\"RegionNum\":4,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"CHEMISTRY, APPLIED\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Polish Journal of Chemical Technology","FirstCategoryId":"5","ListUrlMain":"https://doi.org/10.2478/pjct-2023-0035","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"CHEMISTRY, APPLIED","Score":null,"Total":0}

引用次数: 0

摘要

这项研究考察了异质 Sorbonorit B4 (SB4) 活性炭对甲乙酮 (MEK)、异丙醇 (IPA)、正丙醇 (NPA) 和异丁醇 (IBA) 以及水蒸气的亲和力。吸附平衡测量结果表明，在相对压力高于 0.4 时，水蒸气的吸附能力高于有机化合物。在相同蒸汽压力下，SB4 的吸附容量依次为NPA；IPA；MEK；IBA。实验选择了 Langmuir、Dubinin-Radushkevich、Dubinin-Astakhov 和 Toth 等温线模型来描述实验结果。根据多温度等温线，确定了不同吸附剂吸附量下的等效吸附热值。结果表明，VOC 分子结构和 SB4 表面异质性对吸附效率有很大影响。对于 IPA-SB4 对，计算了吸附过程中固定床的最大温升和再生所需的能量，并通过实验进行了验证。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

查看原文本刊更多论文

Adsorption behaviour of polar solvent and water vapours on Sorbonorit B4 activated carbon

In this work, the affinity of the heterogeneous Sorbonorit B4 (SB4) activated carbon toward methyl ethyl ketone (MEK), isopropyl alcohol (IPA), n-propyl alcohol (NPA) and isobutyl alcohol (IBA), and water vapours was examined. Adsorption equilibrium measurements demonstrate a higher adsorption capacity of water vapour than organic compounds at relative pressures above 0.4. The adsorption capacities of SB4 at the same vapor pressure followed the order: NPA> IPA> MEK> IBA. The Langmuir, Dubinin-Radushkevich, Dubinin-Astakhov, and Toth isotherm models were chosen to describe experimental results. Based on the multi-temperature isotherms, the values of the isosteric heat of adsorption were determined for various adsorbate loading. The results indicate a strong influence of VOC molecule structures and the surface heterogeneity of SB4 on the adsorption efficiency. For IPA-SB4 pair, the maximum temperature rise in a fixed-bed bed in the adsorption process and the energy requirement for regeneration were calculated and experimentally verified.

求助全文

通过发布文献求助，成功后即可免费获取论文全文。去求助

来源期刊

Polish Journal of Chemical Technology CHEMISTRY, APPLIED-ENGINEERING, CHEMICAL

CiteScore

1.70

自引率

10.00%

发文量

审稿时长

4.5 months

期刊介绍： Polish Journal of Chemical Technology is a peer-reviewed, international journal devoted to fundamental and applied chemistry, as well as chemical engineering and biotechnology research. It has a very broad scope but favors interdisciplinary research that bring chemical technology together with other disciplines. All authors receive very fast and comprehensive peer-review. Additionally, every published article is promoted to researchers working in the same field.