Sunday, February 24, 2013

Production possibility frontier analysis of biodiesel from waste cooking oil

This paper presents an assessment of the productive efficiency of an advanced biodiesel plant in Japan using Data Envelopment Analysis (DEA). The empirical analysis uses monthly input data (waste cooking oil, methanol, potassium hydroxide, power consumption, and the truck diesel fuel used for the procurement of waste cooking oil) and output data (biodiesel) of a biodiesel fuel plant for August 2008–July 2010. The results of this study show that the production activity with the lowest cost on the biodiesel production possibility frontier occurred in March 2010 (production activity used 1.41 kL of waste cooking oil, 0.18 kL of MeOH, 16.33 kg of KOH, and 5.45 kW h of power), and the unit production cost in that month was 18,517 yen/kL. Comparing this efficient production cost to the mean unit production cost on the production possibility frontier at 19,712 yen/kL, revealed that the cost of producing 1 kL of biodiesel could be reduced by as much as 1195 yen. We also find that the efficiency improvement will contribute to decreasing the cost ratio (cost per sale) of the biodiesel production by approximately 1% during the study period (24 months) between August 2008 and July 2010.
Full-size image (23 K) 
Fig. 2. Material costs (¥/kL) required for producing one unit of biodiesel. 
► This paper analyzes the productive efficiency of an advanced biodiesel plant using DEA.
► We examine the optimal production activities of biodiesel from waste cooking oil.
► Considering the production frontier, the unit cost of biodiesel could be reduced by 1195 yen. 
► The efficiency improvement contributes to decreasing the cost ratio of the biodiesel by 1%.
by Shigemi Kagawaa, c, E-mail the corresponding author, Kanako Takezonoa, Sangwon Suhb and Yuki Kudohc  
a Corresponding author at: Faculty of Economics, Kyushu University, 6-19-1 Hakozaki, Higashi-ku, Fukuoka 812-8581, Japan. Tel./fax: +81 92 642 2489 
b Bren School of Environmental Science and Management, The University of California, Santa Barbara, USA  
c Research Institute of Science for Safety and Sustainability, National Institute of Advanced Industrial Science and Technology, Japan 
Energy Policy via Elsevier Science Direct  
Volume 55, April 2013, Pages 362–368 
Keywords: Waste cooking oil; Biodiesel;

No comments:

Post a Comment