Biodiesel washing

The process of biodiesel washing uses mixed with water. There are different techniques for biodiesel washing, Water is weighted than biodiesel and absorb the excess alcohol, catalyst, and soap suspends in the fuel. Some sources encourage using unwashed biodiesel, because biodiesel washing is a time-consuming process. However, some alcohol, sodium hydroxide, and soap remain suspended throughout the biodiesel after the Transesterification is complete. Biodiesel before shutting down the water will be absorbed milky, and clearly the final wash water drained off. Extra catalyst in the biodiesel will form soap when mixed with water, and it takes a while for the soap to settle out. Depending on the process used, it's a gallon of water per wash cycle for the biodiesel takes roughly a gallon. More traditional biodiesel washing method widely used in biodiesel production and additional contaminated substances to remove the remaining chemicals is used for.