title: Life cycle assessment of hydrogenated biodiesel production from waste cooking oil using the catalytic cracking and hydrogenation method.
abstract: 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.
authors: Environment Preservation Research Center, Kyoto University, Yoshida-Honmachi, Sakyo-ku, Kyoto 606-8501, Japan. Electronic address: yano@eprc.kyoto-u.ac.jp.
authors: Junya
authors: J
authors: Yano
authors: Environment Preservation Research Center, Kyoto University, Yoshida-Honmachi, Sakyo-ku, Kyoto 606-8501, Japan.
authors: Tatsuki
authors: T
authors: Aoki
authors: Advanced Scientific Technology & Management, 134 Chudoji Minamimachi, Shimogyo-ku, Kyoto 606-8813, Japan.
authors: Kazuo
authors: K
authors: Nakamura
authors: Kyoto City Environmental Policy Bureau, 384 Ichinofunairicho, Nakagyo-ku, Kyoto 604-0924, Japan.
authors: Kazuo
authors: K
authors: Yamada
authors: Environment Preservation Research Center, Kyoto University, Yoshida-Honmachi, Sakyo-ku, Kyoto 606-8501, Japan.
authors: Shin-ichi
authors: S
authors: Sakai
mesh_terms: D000397:Air Pollution; D056804:Biofuels / Q000032:analysis*; D002384:Catalysis; D003296:Cooking; D004777:Environment; D005742:Gasoline / Q000032:analysis*; D057232:Global Warming; D006865:Hydrogenation; D010938:Plant Oils / Q000032:analysis*; D035501:Uncertainty; D018505:Waste Management / Q000379:methods*
chemical_list: D056804:Biofuels; D005742:Gasoline; D010938:Plant Oils
keywords: Biodiesel fuel (BDF); Catalytic cracking method; Hydrogenated biodiesel (HBD); Life cycle assessment (LCA); Waste cooking oil; Waste-to-fuel