麻疯树和油菜籽生物柴油的生命周期评价:从摇篮到坟墓

IF 5.8 2区 生物学 Q1 AGRICULTURAL ENGINEERING
Sophie Shrees, Ayesha Masood, Yutshu Shrestha, Garima Garima
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引用次数: 0

摘要

生物柴油被认为是化石燃料的可持续替代品,因为它可以减少温室气体排放,增强能源安全。本研究采用ReCiPe 2016影响评价方法和OpenLCA软件中的Ecoinvent v3.8数据库,通过生命周期评价方法对麻疯树和菜籽油生产生物柴油的环境影响进行评价。结果表明,与麻疯树相比,从油菜籽生产生物柴油对环境的总体影响要大得多,即使考虑了从摇篮到坟墓的方法。麻风树的全球变暖潜能值为1.53 kg CO2当量/ MJ,而油菜籽的全球变暖潜能值为2.14 kg CO2当量/ MJ,减排28%。此外,麻疯树在细颗粒物形成方面的排放量减少了26%,陆地酸化减少了33% (SO2当量排放量)。而在淡水富营养化的情况下,油菜籽的P eq排放量比麻疯树低15%。该研究强调了生物柴油系统的综合方法,以减少生态不利因素并最大化环境效益。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Life cycle assessment of Jatropha and rapeseed biodiesels: Cradle to grave
Biodiesel is considered a sustainable alternative to fossil fuels as it accounts for the reduction in greenhouse gas emissions and enhancement in energy security. The present study aims to evaluate the environmental impacts of biodiesel production from Jatropha and Rapeseed oils through Life Cycle Assessment by using the ReCiPe 2016 impact assessment method and the Ecoinvent v3.8 database in the OpenLCA software. Results demonstrate that in comparison to Jatropha, the manufacturing of biodiesel from Rapeseed has substantially greater total environmental impacts, even after considering the cradle-to-grave approach. Global warming potential for Jatropha was 1.53 kg CO2 eq per MJ, whereas, for Rapeseed, GWP was 2.14 kg CO2 eq per MJ, highlighting a 28 % emissions reduction. Furthermore, Jatropha had 26 % less emissions in fine particulate matter formation and had 33 % (SO2 eq emissions) lower terrestrial acidification. However, Rapeseed was better in the case of freshwater eutrophication, with 15 % (P eq emissions) lower than Jatropha. The study highlights a comprehensive approach to biodiesel systems to reduce ecological disadvantages and maximize environmental benefits.
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来源期刊
Biomass & Bioenergy
Biomass & Bioenergy 工程技术-能源与燃料
CiteScore
11.50
自引率
3.30%
发文量
258
审稿时长
60 days
期刊介绍: Biomass & Bioenergy is an international journal publishing original research papers and short communications, review articles and case studies on biological resources, chemical and biological processes, and biomass products for new renewable sources of energy and materials. The scope of the journal extends to the environmental, management and economic aspects of biomass and bioenergy. Key areas covered by the journal: • Biomass: sources, energy crop production processes, genetic improvements, composition. Please note that research on these biomass subjects must be linked directly to bioenergy generation. • Biological Residues: residues/rests from agricultural production, forestry and plantations (palm, sugar etc), processing industries, and municipal sources (MSW). Papers on the use of biomass residues through innovative processes/technological novelty and/or consideration of feedstock/system sustainability (or unsustainability) are welcomed. However waste treatment processes and pollution control or mitigation which are only tangentially related to bioenergy are not in the scope of the journal, as they are more suited to publications in the environmental arena. Papers that describe conventional waste streams (ie well described in existing literature) that do not empirically address ''new'' added value from the process are not suitable for submission to the journal. • Bioenergy Processes: fermentations, thermochemical conversions, liquid and gaseous fuels, and petrochemical substitutes • Bioenergy Utilization: direct combustion, gasification, electricity production, chemical processes, and by-product remediation • Biomass and the Environment: carbon cycle, the net energy efficiency of bioenergy systems, assessment of sustainability, and biodiversity issues.
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