The objective of this study is to develop an inventory of life cycle data that describes the cradle to grave lifespan of recycled greases used in biodiesel production. The cycle begins with soybean production, proceeding through crushing, refining, degumming, bleaching, deodorizing, hydrogenation, distribution of hydrogenated soybean oil to restaurants, cooking, collection of the used oils from the cooking locations, pretreatment, conversion to biodiesel, distribution and blending of the fuel, and finally combustion in an urban bus engine. This study will use the soy biodiesel life cycle inventory completed in 1998 as the starting basis for the data collection and modeling elements.

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Contact Person: 
Andy Aden
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Aden, Andy
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