{"title":"超临界燃煤电厂燃烧后碳捕集技术的全生命周期环境影响与经济分析","authors":"Yue Wang, Shuai Shao, Qiufeng Gao, Yun Zhang, Xiaomeng Wang, Xinran Gao","doi":"10.1016/j.eiar.2025.107933","DOIUrl":null,"url":null,"abstract":"<div><div>Coal-fired power plants remain a major contributor to global CO₂ emissions, necessitating the urgent deployment of carbon capture technologies to mitigate climate impacts. This study evaluated four post-combustion carbon capture (PCC) systems – monoethanolamine (MEA)-based chemical absorption, ammonia-based absorption, membrane separation, and calcium looping (CaL) – through life cycle environmental and economic assessments at the power plant level, to assess the trade-offs between emission reductions and cost-effectiveness across technologies. The results showed that, compared with the baseline plant, PCC technologies reduced the global warming potential and acidification potential by 61.3–77.6 % and 66.2–83.5 %, respectively. Other environmental impact categories increased to varying degrees, in particular Abiotic Depletion Potential fossil (by 3.8–49.3 %) and the marine aquatic ecotoxicity potential (by 10.8–66.8 %), which account for more than 80 % of the total environmental impact. The total life cycle costs of PCC plants increased by 35–66 % compared with that of the baseline plant, with external costs decreasing by 66.5–78.1 % and internal costs increasing by 62.6–100.9 %. The CaL power plant had the lowest environmental impact of the PCC plants except for Abiotic Depletion Potential elements, which had the largest reduction in external costs (78.1 %) and an increase in internal costs (77.7 %). Membrane separation PCC plants had the lowest total life cycle cost, reducing external costs by 70.0 %, while increasing internal costs by only 62.6 % compared. Thus, we recommend deploying membrane separation as a PCC technology, which combines environmental and economic factors. Our findings provide a reference for companies to select and deploy carbon capture technology.</div></div>","PeriodicalId":309,"journal":{"name":"Environmental Impact Assessment Review","volume":"114 ","pages":"Article 107933"},"PeriodicalIF":9.8000,"publicationDate":"2025-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Life cycle environmental impact and economic analysis of post-combustion carbon capture technologies in supercritical coal-fired power plants\",\"authors\":\"Yue Wang, Shuai Shao, Qiufeng Gao, Yun Zhang, Xiaomeng Wang, Xinran Gao\",\"doi\":\"10.1016/j.eiar.2025.107933\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>Coal-fired power plants remain a major contributor to global CO₂ emissions, necessitating the urgent deployment of carbon capture technologies to mitigate climate impacts. This study evaluated four post-combustion carbon capture (PCC) systems – monoethanolamine (MEA)-based chemical absorption, ammonia-based absorption, membrane separation, and calcium looping (CaL) – through life cycle environmental and economic assessments at the power plant level, to assess the trade-offs between emission reductions and cost-effectiveness across technologies. The results showed that, compared with the baseline plant, PCC technologies reduced the global warming potential and acidification potential by 61.3–77.6 % and 66.2–83.5 %, respectively. Other environmental impact categories increased to varying degrees, in particular Abiotic Depletion Potential fossil (by 3.8–49.3 %) and the marine aquatic ecotoxicity potential (by 10.8–66.8 %), which account for more than 80 % of the total environmental impact. The total life cycle costs of PCC plants increased by 35–66 % compared with that of the baseline plant, with external costs decreasing by 66.5–78.1 % and internal costs increasing by 62.6–100.9 %. The CaL power plant had the lowest environmental impact of the PCC plants except for Abiotic Depletion Potential elements, which had the largest reduction in external costs (78.1 %) and an increase in internal costs (77.7 %). Membrane separation PCC plants had the lowest total life cycle cost, reducing external costs by 70.0 %, while increasing internal costs by only 62.6 % compared. Thus, we recommend deploying membrane separation as a PCC technology, which combines environmental and economic factors. Our findings provide a reference for companies to select and deploy carbon capture technology.</div></div>\",\"PeriodicalId\":309,\"journal\":{\"name\":\"Environmental Impact Assessment Review\",\"volume\":\"114 \",\"pages\":\"Article 107933\"},\"PeriodicalIF\":9.8000,\"publicationDate\":\"2025-04-08\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Environmental Impact Assessment Review\",\"FirstCategoryId\":\"90\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0195925525001301\",\"RegionNum\":1,\"RegionCategory\":\"社会学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"ENVIRONMENTAL STUDIES\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Environmental Impact Assessment Review","FirstCategoryId":"90","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0195925525001301","RegionNum":1,"RegionCategory":"社会学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENVIRONMENTAL STUDIES","Score":null,"Total":0}
Life cycle environmental impact and economic analysis of post-combustion carbon capture technologies in supercritical coal-fired power plants
Coal-fired power plants remain a major contributor to global CO₂ emissions, necessitating the urgent deployment of carbon capture technologies to mitigate climate impacts. This study evaluated four post-combustion carbon capture (PCC) systems – monoethanolamine (MEA)-based chemical absorption, ammonia-based absorption, membrane separation, and calcium looping (CaL) – through life cycle environmental and economic assessments at the power plant level, to assess the trade-offs between emission reductions and cost-effectiveness across technologies. The results showed that, compared with the baseline plant, PCC technologies reduced the global warming potential and acidification potential by 61.3–77.6 % and 66.2–83.5 %, respectively. Other environmental impact categories increased to varying degrees, in particular Abiotic Depletion Potential fossil (by 3.8–49.3 %) and the marine aquatic ecotoxicity potential (by 10.8–66.8 %), which account for more than 80 % of the total environmental impact. The total life cycle costs of PCC plants increased by 35–66 % compared with that of the baseline plant, with external costs decreasing by 66.5–78.1 % and internal costs increasing by 62.6–100.9 %. The CaL power plant had the lowest environmental impact of the PCC plants except for Abiotic Depletion Potential elements, which had the largest reduction in external costs (78.1 %) and an increase in internal costs (77.7 %). Membrane separation PCC plants had the lowest total life cycle cost, reducing external costs by 70.0 %, while increasing internal costs by only 62.6 % compared. Thus, we recommend deploying membrane separation as a PCC technology, which combines environmental and economic factors. Our findings provide a reference for companies to select and deploy carbon capture technology.
期刊介绍:
Environmental Impact Assessment Review is an interdisciplinary journal that serves a global audience of practitioners, policymakers, and academics involved in assessing the environmental impact of policies, projects, processes, and products. The journal focuses on innovative theory and practice in environmental impact assessment (EIA). Papers are expected to present innovative ideas, be topical, and coherent. The journal emphasizes concepts, methods, techniques, approaches, and systems related to EIA theory and practice.