A Review of Biodiesel Production Process from Waste Cooking Oil

Abstract

The need for safety and environmentally-friendly alternative energy sources has growth in now days due to the awareness of the negative impacts of fossil fuels on the atmosphere and the regular increase in crude oil prices. Its specific characteristics such as a substantial decrease in emissions of green house gas, non-sulfur emissions and non-particulate contaminants, low toxicity and biodegradability.So biodiesels proved the best substitute for diesel. This article explores the chemical and physical substances of Esterification, waste cooking oil, Transesterification and biodiesel production by different methods and catalysts as yet mentioned. This article discusses pretreatment and waste cooking oil. The factors which affect the process parameters mentioned are investigated and the emphasis is on the quantitative and qualitative scope of the alcohol / oil relationship, the response-temperature and the catalyst. The optimal conditions are investigated and Biodiesel and petroleum diesel which are exhausted emissions also comparison is made.