Pengaruh Tipe Katalis Antara Naoh, Cao Dan Pcc (Precipitated Calcium Carbonat…

Making biodiesel from waste cooking oil trough a two-stage process, esterification-transesterification to produce methyl esters that can be used as an alternative fuel for diesel engines. The purpose of this research is making biodiesel from waste cooking oil with esterification process using sulfuric acid as catalyst continued transesterification process using homogenous base catalyst (NaOH) a…