Life cycle assessment of biodiesel fuel production using the catalytic cracking and hydrogenation method

Yano, J.; Aoki, T.; Nakamura, K.; Yamada, K.; Sakai, S. (2014) Presented at Proceedings Venice 2014, Fifth International Symposium on Energy from Biomass and Waste, Venice, Italy, November 19, 2014


The purpose of this study was to clarify the reduction effects of hydrogenated-type biodiesel fuel (BDF), produced by the catalytic cracking and hydrogenation method, on environmental impacts as compared with those of fossil-derived diesel fuel and fatty acid methyl esters (FAME)-type BDF. A life cycle assessment was conducted to evaluate a number of environmental impacts: fossil fuel consumption, global warming, urban area air pollution, and acidification. Characterization and integration factors identified by LIME 2 were used for the calculations. Two functions, "treatment of waste cooking oil" and "running diesel vehicle for household waste collection," were established as functional units. The integration results indicated that the scenario reflecting the current situation in Japan showed the most significant environmental impacts, while the scenario that introduced Hydrogenated biodiesel (HBD) was the most optimal from an environmental standpoint. A shift from FAME-type BDF to HBD in the future would be effective in reducing environmental impacts.