#TITLE_ALTERNATIVE#

• Main Author: ADELINA (NIM 23005016), HELEN
• Format: Theses
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/8066
• Institution: Institut Teknologi Bandung

Palm biodiesel has a good potential to become an Indonesian export commodity. However, cloud point and pour point of this biodiesel are relatively high. Such that biodiesel can cause operatibility problems due to the clogging of fuel lines and filters at low temperature. This drawback will decrease the export potencial of the biodiesel to temperate regions. Therefore, effort to depress pour point of the biodiesel need to be conducted. One way to achieve this objective is by adding pour/cloud point depressant to the biodiesel.<p> <br /> <br /> <br /> This study evaluted the effectiveness of some addtivies such as poly ethylene glycol, diethyl hexyl adiphate, commercial additives, and ozonized vegetable oils (Conola oil, soybean oil, sun flower oil, and palm oil). The effects of types and concentration of additives on density and viscosity were evaluated.<p> <br /> <br /> <br /> The results of this study showed that the addition of some of the above could not affect cloud point, but could reduce pour point. The highest reduction in pour point have been obtained by addition of poly ethylene glycol as much as 4000 ppm. The reduction in pour point of the biodiesel by addition of ozonized vegetable oils additives was effective at concentration of 1%-weight. The density and viscosity of the biodiesel could not be affected by addition of these additives, except by ozonized vegetable oils.