Yano Junya, Aoki Tatsuki, Nakamura Kazuo, Yamada Kazuo, Sakai Shin-ichi
Environment Preservation Research Center, Kyoto University, Yoshida-Honmachi, Sakyo-ku, Kyoto 606-8501, Japan.
Environment Preservation Research Center, Kyoto University, Yoshida-Honmachi, Sakyo-ku, Kyoto 606-8501, Japan.
Waste Manag. 2015 Apr;38:409-23. doi: 10.1016/j.wasman.2015.01.014. Epub 2015 Feb 7.
There is a worldwide trend towards stricter control of diesel exhaust emissions, however presently, there are technical impediments to the use of FAME (fatty acid methyl esters)-type biodiesel fuel (BDF). Although hydrogenated biodiesel (HBD) is anticipated as a new diesel fuel, the environmental performance of HBD and its utilization system have not been adequately clarified. Especially when waste cooking oil is used as feedstock, not only biofuel production but also the treatment of waste cooking oil is an important function for society. A life cycle assessment (LCA), including uncertainty analysis, was conducted to determine the environmental benefits (global warming, fossil fuel consumption, urban air pollution, and acidification) of HBD produced from waste cooking oil via catalytic cracking and hydrogenation, compared with fossil-derived diesel fuel or FAME-type BDF. Combined functional unit including "treatment of waste cooking oil" and "running diesel vehicle for household waste collection" was established in the context of Kyoto city, Japan. The calculation utilized characterization, damage, and integration factors identified by LIME2, which was based on an endpoint modeling method. The results show that if diesel vehicles that comply with the new Japanese long-term emissions gas standard are commonly used in the future, the benefit of FAME-type BDF will be relatively limited. Furthermore, the scenario that introduced HBD was most effective in reducing total environmental impact, meaning that a shift from FAME-type BDF to HBD would be more beneficial.
全球范围内存在对柴油尾气排放进行更严格控制的趋势，然而目前，使用脂肪酸甲酯（FAME）型生物柴油燃料（BDF）存在技术障碍。尽管氢化生物柴油（HBD）有望成为一种新型柴油燃料，但其环境性能及其利用系统尚未得到充分阐明。特别是当使用废食用油作为原料时，不仅生物燃料生产，而且废食用油的处理对社会来说也是一项重要功能。进行了包括不确定性分析在内的生命周期评估（LCA），以确定通过催化裂化和氢化由废食用油生产的HBD与化石衍生柴油燃料或FAME型BDF相比的环境效益（全球变暖、化石燃料消耗、城市空气污染和酸化）。在日本京都的背景下，建立了包括“废食用油处理”和“运行用于家庭垃圾收集的柴油车辆”的组合功能单元。计算使用了基于终点建模方法的LIME2确定的特征化、损害和整合因子。结果表明，如果未来普遍使用符合日本新的长期排放气体标准的柴油车辆，FAME型BDF的效益将相对有限。此外，引入HBD的情景在减少总体环境影响方面最为有效，这意味着从FAME型BDF转向HBD将更有益。
