Biodiesel, which consists of long-chain fatty acid methyl esters (FAME) obtained from renewable lipids such as those in vegetable oils or animal fat can be used as both an alternative fuel and an additive for petroleum diesel. This book gathers research from across the globe in the study of biodiesel blends, properties and applications. Topics discussed include biodiesel purification methods; exhaust emissions study of biodiesel operated garbage trucks; the heterogeneous catalyst for the transesterification of triglycerides into biodiesel; valorization of wastes and by-products derived from biodiesel manufacturing and biodiesel production using cation-exchange resin as heterogeneous acid catalyst