{"title":"评估变压吸附装置中二氧化碳/四氯化碳分离吸附剂的性能:综述","authors":"Luis Paz , Solène Gentil , Vanessa Fierro , Alain Celzard","doi":"10.1016/j.jece.2024.114870","DOIUrl":null,"url":null,"abstract":"<div><div>This review article assesses the performance of various adsorbents for CO<sub>2</sub>/CH<sub>4</sub> separation, a critical step in the final phase of a biogas upgrading plant. The focus is particularly on the use of pressure swing adsorption (PSA) units for this purpose. Four types of adsorbents, including activated carbons (ACs), carbon molecular sieves, metal organic frameworks, and zeolites, are thus evaluated based on their selectivity in CO<sub>2</sub>/CH<sub>4</sub> separation and PSA working capacity ratio. This selectivity is estimated from pure component isotherms through the Ideal Adsorbed Solution Theory (IAST), and the PSA working capacity ratio is evaluated for a PSA cycle with depressurization at atmospheric and sub-atmospheric pressure. The results show that ACs exhibit the lowest selectivity, while zeolites have the highest selectivity and PSA working capacity ratio. The article also includes a review of simulation studies on CO<sub>2</sub>/CH<sub>4</sub> separation by PSA. In addition, PSA units are compared based on their productivity, energy consumption, purity, and recovery. To calculate energy consumption and productivity, parameters that are often overlooked, a mass balance is applied to the PSA cycle described in each relevant literature study. Our study suggests that the PSA cycle with pressure equalization and sub-atmospheric pressure depressurization is the most optimal, providing valuable insights into the selection and optimization of adsorbents and PSA units for CO<sub>2</sub>/CH<sub>4</sub> separation.</div></div>","PeriodicalId":15759,"journal":{"name":"Journal of Environmental Chemical Engineering","volume":"12 6","pages":"Article 114870"},"PeriodicalIF":7.4000,"publicationDate":"2024-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Assessing the performance of adsorbents for CO2/CH4 separation in pressure swing adsorption units: A review\",\"authors\":\"Luis Paz , Solène Gentil , Vanessa Fierro , Alain Celzard\",\"doi\":\"10.1016/j.jece.2024.114870\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>This review article assesses the performance of various adsorbents for CO<sub>2</sub>/CH<sub>4</sub> separation, a critical step in the final phase of a biogas upgrading plant. The focus is particularly on the use of pressure swing adsorption (PSA) units for this purpose. Four types of adsorbents, including activated carbons (ACs), carbon molecular sieves, metal organic frameworks, and zeolites, are thus evaluated based on their selectivity in CO<sub>2</sub>/CH<sub>4</sub> separation and PSA working capacity ratio. This selectivity is estimated from pure component isotherms through the Ideal Adsorbed Solution Theory (IAST), and the PSA working capacity ratio is evaluated for a PSA cycle with depressurization at atmospheric and sub-atmospheric pressure. The results show that ACs exhibit the lowest selectivity, while zeolites have the highest selectivity and PSA working capacity ratio. The article also includes a review of simulation studies on CO<sub>2</sub>/CH<sub>4</sub> separation by PSA. In addition, PSA units are compared based on their productivity, energy consumption, purity, and recovery. To calculate energy consumption and productivity, parameters that are often overlooked, a mass balance is applied to the PSA cycle described in each relevant literature study. Our study suggests that the PSA cycle with pressure equalization and sub-atmospheric pressure depressurization is the most optimal, providing valuable insights into the selection and optimization of adsorbents and PSA units for CO<sub>2</sub>/CH<sub>4</sub> separation.</div></div>\",\"PeriodicalId\":15759,\"journal\":{\"name\":\"Journal of Environmental Chemical Engineering\",\"volume\":\"12 6\",\"pages\":\"Article 114870\"},\"PeriodicalIF\":7.4000,\"publicationDate\":\"2024-11-27\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Environmental Chemical Engineering\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S2213343724030021\",\"RegionNum\":2,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"ENGINEERING, CHEMICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Environmental Chemical Engineering","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2213343724030021","RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, CHEMICAL","Score":null,"Total":0}
Assessing the performance of adsorbents for CO2/CH4 separation in pressure swing adsorption units: A review
This review article assesses the performance of various adsorbents for CO2/CH4 separation, a critical step in the final phase of a biogas upgrading plant. The focus is particularly on the use of pressure swing adsorption (PSA) units for this purpose. Four types of adsorbents, including activated carbons (ACs), carbon molecular sieves, metal organic frameworks, and zeolites, are thus evaluated based on their selectivity in CO2/CH4 separation and PSA working capacity ratio. This selectivity is estimated from pure component isotherms through the Ideal Adsorbed Solution Theory (IAST), and the PSA working capacity ratio is evaluated for a PSA cycle with depressurization at atmospheric and sub-atmospheric pressure. The results show that ACs exhibit the lowest selectivity, while zeolites have the highest selectivity and PSA working capacity ratio. The article also includes a review of simulation studies on CO2/CH4 separation by PSA. In addition, PSA units are compared based on their productivity, energy consumption, purity, and recovery. To calculate energy consumption and productivity, parameters that are often overlooked, a mass balance is applied to the PSA cycle described in each relevant literature study. Our study suggests that the PSA cycle with pressure equalization and sub-atmospheric pressure depressurization is the most optimal, providing valuable insights into the selection and optimization of adsorbents and PSA units for CO2/CH4 separation.
期刊介绍:
The Journal of Environmental Chemical Engineering (JECE) serves as a platform for the dissemination of original and innovative research focusing on the advancement of environmentally-friendly, sustainable technologies. JECE emphasizes the transition towards a carbon-neutral circular economy and a self-sufficient bio-based economy. Topics covered include soil, water, wastewater, and air decontamination; pollution monitoring, prevention, and control; advanced analytics, sensors, impact and risk assessment methodologies in environmental chemical engineering; resource recovery (water, nutrients, materials, energy); industrial ecology; valorization of waste streams; waste management (including e-waste); climate-water-energy-food nexus; novel materials for environmental, chemical, and energy applications; sustainability and environmental safety; water digitalization, water data science, and machine learning; process integration and intensification; recent developments in green chemistry for synthesis, catalysis, and energy; and original research on contaminants of emerging concern, persistent chemicals, and priority substances, including microplastics, nanoplastics, nanomaterials, micropollutants, antimicrobial resistance genes, and emerging pathogens (viruses, bacteria, parasites) of environmental significance.