دورية أكاديمية
Long-term prospects for the environmental profile of advanced sugar cane ethanol.
| العنوان: | Long-term prospects for the environmental profile of advanced sugar cane ethanol. |
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| المؤلفون: | da Silva CR; Faculdade de Engenharia Mecânica, Unicamp. Rua Mendeleyev 200, Cidade Universitária 'Zeferino Vaz' , Campinas, SP, Brazil , 13083-860., Franco HC, Junqueira TL, van Oers L, van der Voet E, Seabra JE |
| المصدر: | Environmental science & technology [Environ Sci Technol] 2014 Oct 21; Vol. 48 (20), pp. 12394-402. Date of Electronic Publication: 2014 Oct 02. |
| نوع المنشور: | Journal Article; Research Support, Non-U.S. Gov't |
| اللغة: | English |
| بيانات الدورية: | Publisher: American Chemical Society Country of Publication: United States NLM ID: 0213155 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1520-5851 (Electronic) Linking ISSN: 0013936X NLM ISO Abbreviation: Environ Sci Technol Subsets: MEDLINE |
| أسماء مطبوعة: | Publication: Washington DC : American Chemical Society Original Publication: Easton, Pa. : American Chemical Society, c1967- |
| مواضيع طبية MeSH: | Environment* , Environmental Pollution*, Biofuels/*statistics & numerical data , Ethanol/*isolation & purification , Saccharum/*chemistry, Agriculture ; Biomass ; Brazil ; Eutrophication ; Global Warming ; Humans ; Sugar Alcohols ; Uncertainty |
| مستخلص: | This work assessed the environmental impacts of the production and use of 1 MJ of hydrous ethanol (E100) in Brazil in prospective scenarios (2020-2030), considering the deployment of technologies currently under development and better agricultural practices. The life cycle assessment technique was employed using the CML method for the life cycle impact assessment and the Monte Carlo method for the uncertainty analysis. Abiotic depletion, global warming, human toxicity, ecotoxicity, photochemical oxidation, acidification, and eutrophication were the environmental impacts categories analyzed. Results indicate that the proposed improvements (especially no-til farming-scenarios s2 and s4) would lead to environmental benefits in prospective scenarios compared to the current ethanol production (scenario s0). Combined first and second generation ethanol production (scenarios s3 and s4) would require less agricultural land but would not perform better than the projected first generation ethanol, although the uncertainties are relatively high. The best use of 1 ha of sugar cane was also assessed, considering the displacement of the conventional products by ethanol and electricity. No-til practices combined with the production of first generation ethanol and electricity (scenario s2) would lead to the largest mitigation effects for global warming and abiotic depletion. For the remaining categories, emissions would not be mitigated with the utilization of the sugar cane products. However, this conclusion is sensitive to the displaced electricity sources. |
| المشرفين على المادة: | 0 (Biofuels) 0 (Sugar Alcohols) 3K9958V90M (Ethanol) |
| تواريخ الأحداث: | Date Created: 20141003 Date Completed: 20160108 Latest Revision: 20181202 |
| رمز التحديث: | 20240628 |
| DOI: | 10.1021/es502552f |
| PMID: | 25275890 |
| قاعدة البيانات: | MEDLINE |
Find this issue from the American Chemical Society | تدمد: | 1520-5851 |
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| DOI: | 10.1021/es502552f |