Biodiesel Production From Rubber Seeds (Hevea brasiliensis) with In Situ and Acid Catalyst Method by Using Ultrasonic Assisted

Abstract

Biodiesel production from the non-edible raw materials become very important because will not collide with human needs. Furthermore, this research studies to biodiesel production with ultrasonic assisted by in situ method. The raw material uses rubber seed and ultrasonic process use ultrasonic cleaner. The objective of this research was to study the influence of catalyst concentration and ratio of raw materials to methanol. The process was done at 60oC for 30 minutes reaction time. The results showed that maximum yield of Fatty Acid Methyl Ester (FAME) was 34.74% by using sulphuric acid 0.1% as catalyst and rubber seed ratio to methanol 1:1.75 (w/v).