BIODIESEL SYNTHESIS lab report - Scribd
Synthesis of Biodiesel from Waste Cooking Oil - sciepub
In the present study biodiesel was synthesized from Waste Cook Oil (WCO) by three-step method and regressive analyzes of the process was done. The raw oil, containing 1.9wt% Free Fatty Acid (FFA) and viscosity was 47.6mm2/s. WCO was collected from local restaurant of Sylhet city in Bangladesh. Transesterification method gives lower yield than three-step method. In the three-step method, the first step is saponification of the oil followed by acidification to produce FFA and finally esterification of FFA to produce biodiesel. In the saponification reaction, various reaction parameters such as oil to sodium hydroxide molar ratio and reaction time were optimized and the oil to NaOH molar ratio was 1:2, In the esterification reaction, the reaction parameters such as methanol to FFA molar ratio, catalyst concentration and reaction temperature were optimized. Silica gel was used during esterification reaction to adsorb water produced in the reaction. Hence the reaction rate was increased and finally the FFA was reduced to 0.52wt%. A factorial design was studied for esterification reaction based on yield of biodiesel. Finally various properties of biodiesel such as FFA, viscosity, specific gravity, cetane index, pour point, flash point etc. were measured and compared with biodiesel and petro-diesel standard. The reaction yield was 79%.
Biodiesel Synthesis: Use of Activated Carbon as …
This project aims to genetically engineer E. coli bacteria to significantly increase production of fatty acids, or biodiesel, from a biological matter feedstock. This potentially low-carbon fuel could replace fossil hydrocarbons currently used in on-road vehicles and aircraft. The major research goals include increasing the activity of key control enzymes that regulate the production of fatty acids, engineering biodiesel biosynthesis so it does not lead to concomitant accumulation of waste glycerol, and synthesis of tailored fuels that have desirable properties for a range of applications.