{"title":"胺类对MIL-101（Cr）同时脱除沼气中H2S/CO2的影响","authors":"Chunyi Li, MinGyu Song, Ryan P Lively","doi":"10.1021/acs.energyfuels.5c01158","DOIUrl":null,"url":null,"abstract":"<p><p>Production of biomethane from raw biogas requires the removal of impurities, such as CO<sub>2</sub> and H<sub>2</sub>S. To accommodate the variety of biogas sources, a modular separation design with a small footprint is desired. In this work, we report three diamine-impregnated metal-organic frameworks (MOFs), MIL-101(Cr) (diamines: diethylethylenediamine, ee-2; 2,2-dimethyl-1,3-propanediamine, dmpn; <i>N</i>-methylethylenediamine, m-2) for simultaneous removal of H<sub>2</sub>S and CO<sub>2</sub> from simulated binary and ternary biogas mixtures. The H<sub>2</sub>S and CO<sub>2</sub> separation performance and regeneration conditions were investigated by dynamic column breakthrough and temperature-programmed desorption experiments. While all three diamine-impregnated MIL-101(Cr) samples were H<sub>2</sub>S-selective over CO<sub>2</sub> in the mixture compositions studied, MIL-101(Cr)-ee-2 displayed the highest H<sub>2</sub>S/CO<sub>2</sub> adsorption selectivity of ∼7. Also, it showed distinct desorption temperatures for H<sub>2</sub>S and CO<sub>2</sub> that allows for concentrated H<sub>2</sub>S collection during adsorbent regeneration, which can potentially simplify the biogas separation process to achieve concentrated biomethane and H<sub>2</sub>S collection using the same adsorption module.</p>","PeriodicalId":35,"journal":{"name":"Energy & Fuels","volume":"39 19","pages":"9022-9034"},"PeriodicalIF":5.3000,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12086858/pdf/","citationCount":"0","resultStr":"{\"title\":\"Effect of Amines on MIL-101(Cr) for Simultaneous H<sub>2</sub>S/CO<sub>2</sub> Removal from Biogas.\",\"authors\":\"Chunyi Li, MinGyu Song, Ryan P Lively\",\"doi\":\"10.1021/acs.energyfuels.5c01158\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><p>Production of biomethane from raw biogas requires the removal of impurities, such as CO<sub>2</sub> and H<sub>2</sub>S. To accommodate the variety of biogas sources, a modular separation design with a small footprint is desired. In this work, we report three diamine-impregnated metal-organic frameworks (MOFs), MIL-101(Cr) (diamines: diethylethylenediamine, ee-2; 2,2-dimethyl-1,3-propanediamine, dmpn; <i>N</i>-methylethylenediamine, m-2) for simultaneous removal of H<sub>2</sub>S and CO<sub>2</sub> from simulated binary and ternary biogas mixtures. The H<sub>2</sub>S and CO<sub>2</sub> separation performance and regeneration conditions were investigated by dynamic column breakthrough and temperature-programmed desorption experiments. While all three diamine-impregnated MIL-101(Cr) samples were H<sub>2</sub>S-selective over CO<sub>2</sub> in the mixture compositions studied, MIL-101(Cr)-ee-2 displayed the highest H<sub>2</sub>S/CO<sub>2</sub> adsorption selectivity of ∼7. Also, it showed distinct desorption temperatures for H<sub>2</sub>S and CO<sub>2</sub> that allows for concentrated H<sub>2</sub>S collection during adsorbent regeneration, which can potentially simplify the biogas separation process to achieve concentrated biomethane and H<sub>2</sub>S collection using the same adsorption module.</p>\",\"PeriodicalId\":35,\"journal\":{\"name\":\"Energy & Fuels\",\"volume\":\"39 19\",\"pages\":\"9022-9034\"},\"PeriodicalIF\":5.3000,\"publicationDate\":\"2025-05-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12086858/pdf/\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Energy & Fuels\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://doi.org/10.1021/acs.energyfuels.5c01158\",\"RegionNum\":3,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"2025/5/15 0:00:00\",\"PubModel\":\"eCollection\",\"JCR\":\"Q2\",\"JCRName\":\"ENERGY & FUELS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Energy & Fuels","FirstCategoryId":"5","ListUrlMain":"https://doi.org/10.1021/acs.energyfuels.5c01158","RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2025/5/15 0:00:00","PubModel":"eCollection","JCR":"Q2","JCRName":"ENERGY & FUELS","Score":null,"Total":0}
Effect of Amines on MIL-101(Cr) for Simultaneous H2S/CO2 Removal from Biogas.
Production of biomethane from raw biogas requires the removal of impurities, such as CO2 and H2S. To accommodate the variety of biogas sources, a modular separation design with a small footprint is desired. In this work, we report three diamine-impregnated metal-organic frameworks (MOFs), MIL-101(Cr) (diamines: diethylethylenediamine, ee-2; 2,2-dimethyl-1,3-propanediamine, dmpn; N-methylethylenediamine, m-2) for simultaneous removal of H2S and CO2 from simulated binary and ternary biogas mixtures. The H2S and CO2 separation performance and regeneration conditions were investigated by dynamic column breakthrough and temperature-programmed desorption experiments. While all three diamine-impregnated MIL-101(Cr) samples were H2S-selective over CO2 in the mixture compositions studied, MIL-101(Cr)-ee-2 displayed the highest H2S/CO2 adsorption selectivity of ∼7. Also, it showed distinct desorption temperatures for H2S and CO2 that allows for concentrated H2S collection during adsorbent regeneration, which can potentially simplify the biogas separation process to achieve concentrated biomethane and H2S collection using the same adsorption module.
期刊介绍：
Energy & Fuels publishes reports of research in the technical area defined by the intersection of the disciplines of chemistry and chemical engineering and the application domain of non-nuclear energy and fuels. This includes research directed at the formation of, exploration for, and production of fossil fuels and biomass; the properties and structure or molecular composition of both raw fuels and refined products; the chemistry involved in the processing and utilization of fuels; fuel cells and their applications; and the analytical and instrumental techniques used in investigations of the foregoing areas.
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