{"title":"可持续交通部门的2G生物乙醇:生命周期评估的回顾和分析","authors":"Umesh, Vijayanand Suryakant Moholkar","doi":"10.1007/s40726-025-00340-2","DOIUrl":null,"url":null,"abstract":"<div><h3>Purpose of Review</h3><p>Second-generation (2G) bioethanol produced from lignocellulosic biomass is green liquid transportation fuel. Manufacture and use of 2G bioethanol involves several stages. Hence, the impact of 2G bioethanol on all segments of ecosystem needs to be assessed. Life Cycle Assessment (LCA) accounts for the complete environmental impact of 2G bioethanol using several factors. This review has presented an overview and analysis of recent literature on LCA of 2G bioethanol.</p><h3>Recent Findings</h3><p>Recent LCA studies reveal reduction in GHG emissions with bioethanol-blended gasoline. The net energy ratio of bioethanol is > 1. However, bioethanol's acidification and eutrophication potential is high due to chemicals used during crop cultivation and biomass pretreatment. LCA studies also suggest use of lignin for electricity co-generation for closed carbon cycle.</p><h3>Summary</h3><p>LCA analysis reveals that use of renewable resources during bioethanol manufacture (solar/wind electricity and biofertilizers) can enhance the sustainability of 2G ethanol.</p></div>","PeriodicalId":528,"journal":{"name":"Current Pollution Reports","volume":"11 1","pages":""},"PeriodicalIF":6.4000,"publicationDate":"2025-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"2G Bioethanol for Sustainable Transport Sector: Review and Analysis of the Life Cycle Assessments\",\"authors\":\"Umesh, Vijayanand Suryakant Moholkar\",\"doi\":\"10.1007/s40726-025-00340-2\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><h3>Purpose of Review</h3><p>Second-generation (2G) bioethanol produced from lignocellulosic biomass is green liquid transportation fuel. Manufacture and use of 2G bioethanol involves several stages. Hence, the impact of 2G bioethanol on all segments of ecosystem needs to be assessed. Life Cycle Assessment (LCA) accounts for the complete environmental impact of 2G bioethanol using several factors. This review has presented an overview and analysis of recent literature on LCA of 2G bioethanol.</p><h3>Recent Findings</h3><p>Recent LCA studies reveal reduction in GHG emissions with bioethanol-blended gasoline. The net energy ratio of bioethanol is > 1. However, bioethanol's acidification and eutrophication potential is high due to chemicals used during crop cultivation and biomass pretreatment. LCA studies also suggest use of lignin for electricity co-generation for closed carbon cycle.</p><h3>Summary</h3><p>LCA analysis reveals that use of renewable resources during bioethanol manufacture (solar/wind electricity and biofertilizers) can enhance the sustainability of 2G ethanol.</p></div>\",\"PeriodicalId\":528,\"journal\":{\"name\":\"Current Pollution Reports\",\"volume\":\"11 1\",\"pages\":\"\"},\"PeriodicalIF\":6.4000,\"publicationDate\":\"2025-01-22\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Current Pollution Reports\",\"FirstCategoryId\":\"93\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s40726-025-00340-2\",\"RegionNum\":2,\"RegionCategory\":\"环境科学与生态学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"ENVIRONMENTAL SCIENCES\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Current Pollution Reports","FirstCategoryId":"93","ListUrlMain":"https://link.springer.com/article/10.1007/s40726-025-00340-2","RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENVIRONMENTAL SCIENCES","Score":null,"Total":0}
2G Bioethanol for Sustainable Transport Sector: Review and Analysis of the Life Cycle Assessments
Purpose of Review
Second-generation (2G) bioethanol produced from lignocellulosic biomass is green liquid transportation fuel. Manufacture and use of 2G bioethanol involves several stages. Hence, the impact of 2G bioethanol on all segments of ecosystem needs to be assessed. Life Cycle Assessment (LCA) accounts for the complete environmental impact of 2G bioethanol using several factors. This review has presented an overview and analysis of recent literature on LCA of 2G bioethanol.
Recent Findings
Recent LCA studies reveal reduction in GHG emissions with bioethanol-blended gasoline. The net energy ratio of bioethanol is > 1. However, bioethanol's acidification and eutrophication potential is high due to chemicals used during crop cultivation and biomass pretreatment. LCA studies also suggest use of lignin for electricity co-generation for closed carbon cycle.
Summary
LCA analysis reveals that use of renewable resources during bioethanol manufacture (solar/wind electricity and biofertilizers) can enhance the sustainability of 2G ethanol.
期刊介绍:
Current Pollution Reports provides in-depth review articles contributed by international experts on the most significant developments in the field of environmental pollution.By presenting clear, insightful, balanced reviews that emphasize recently published papers of major importance, the journal elucidates current and emerging approaches to identification, characterization, treatment, management of pollutants and much more.