{"title":"Breakthrough analysis on selective adsorption of CO2 from biogas by polyethylenimine-impregnated resins","authors":"Haiyan Yang, Yue Gong, Xinzhong Wang, Yuanyuan Chen, Dajiang Yu","doi":"10.1007/s00396-024-05234-1","DOIUrl":null,"url":null,"abstract":"<p>Polymer resin-based solid amine are prospective adsorbents used in removing CO<sub>2</sub> from biogas. Two commercial resins with different porous structures, AB-8 and ADS-17, were selected as supports to explore the influence of the support structures on adsorbent performance. It was discovered that macroporous channels greatly boost CO<sub>2</sub> adsorption at higher PEI loadings (≥ 30%), and their influence is more critical than total pore volume or specific surface area, though their impact is minimal at low PEI loadings. ADS-17-40% PEI demonstrated outstanding CO<sub>2</sub> adsorption of 208 mg·g<sup>−1</sup> in its 16th cycle under specific operating conditions. Increasing gas flow rate to 200 mL·min<sup>−1</sup> could promote CO<sub>2</sub> adsorption capacity and initial adsorption rate constant (<i>k</i><sub>0</sub>) calculated by the deactivation model. The highest adsorption capacity was achieved at 55 °C, when the temperature ranged from 25 to 90 °C.</p><h3 data-test=\"abstract-sub-heading\">Graphical abstract</h3>\n","PeriodicalId":520,"journal":{"name":"Colloid and Polymer Science","volume":null,"pages":null},"PeriodicalIF":2.2000,"publicationDate":"2024-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Colloid and Polymer Science","FirstCategoryId":"92","ListUrlMain":"https://doi.org/10.1007/s00396-024-05234-1","RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
引用次数: 0
Abstract
Polymer resin-based solid amine are prospective adsorbents used in removing CO2 from biogas. Two commercial resins with different porous structures, AB-8 and ADS-17, were selected as supports to explore the influence of the support structures on adsorbent performance. It was discovered that macroporous channels greatly boost CO2 adsorption at higher PEI loadings (≥ 30%), and their influence is more critical than total pore volume or specific surface area, though their impact is minimal at low PEI loadings. ADS-17-40% PEI demonstrated outstanding CO2 adsorption of 208 mg·g−1 in its 16th cycle under specific operating conditions. Increasing gas flow rate to 200 mL·min−1 could promote CO2 adsorption capacity and initial adsorption rate constant (k0) calculated by the deactivation model. The highest adsorption capacity was achieved at 55 °C, when the temperature ranged from 25 to 90 °C.
期刊介绍：
Colloid and Polymer Science - a leading international journal of longstanding tradition - is devoted to colloid and polymer science and its interdisciplinary interactions. As such, it responds to a demand which has lost none of its actuality as revealed in the trends of contemporary materials science.
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