Optimasi Kondisi Proses Sintesis Biodiesel Berbasis Reaksi Esterifikasi Palm …

Biodiesel is an alternative fuel to a diesel engine that can replace or reduce the use of petroleum diesel. PFAD (Palm Fatty Acid Distillate) is a by-product of physical refining of crude palm oil products and is contained of free fatty acid (FFA) more than 85 wt.%. Esterification is a chemical reaction used to produce biodiesel from feedstocks with high FFA. Hydroxyapatite derived from waste f…