Waste Cooking Oil Conversion to the Biofuel

Authors

Abstract

Biodiesel is a monoalkyl ester of four generations (vegetable oils animal fats cellulose products fossil fuels and microalgae) The high cost of supplying raw materials for biodiesel production is considered as the most important limiting factor in commercial production of biodiesel Waste cooking oil is known as a cheap and available source for biodiesel production In this study transesterification double steps process TDSP was used to produce biodiesel from waste oil from the exterior of the Shiraz Girls Technical and Vocational University The conventional twostage esterificationtransesterification procedure was compared with the TDSP process Specifications of biodiesel such as flash point 168°C combustion point 175°C cloudiness point 8°C dropping point 1°C freezing point 2°C kinematic viscosity at 40°C 5 mm2 /s and product density 789 kg/m3were evaluated and compared with ASTM standards Due to the shorter reaction time and high quality of the final product in the TDSP method this method was selected as an optimal biodiesel production method