METHOD FOR PREPARING ENZYMATIC BIODIESEL USING SEMI-CONTINUOUS UNDER NEAR CRITICAL CO2 AND THE DEVICE THEREOF

摘要

PURPOSE: A semi-continual enzymatic bio diesel production method and production apparatus in the sub critical carbon dioxide are provided to make eco-friendly as the residual chemicals and enzymes discharged from a bio diesel production process are continuously recycled. CONSTITUTION: A bio diesel production method comprises a step in which oil and carbon dioxide are supplied through a carbon dioxide supplying line(13) which is connected to a oil supplying pipe that supplies oil in a bio catalyst reactor and in which methanol is supplied through a methanol supplying line(15); a step that separates bio diesel and carbon dioxide getting mixtures with bio diesel generated after the synthesis of bio diesel from bio catalyst reactor as the first separator(7) is connected to a bio catalyst reactor(6) and the first mixture supply line; a step that separates glycerol getting the mixture in which bio diesel and carbon dioxide is removed from the first separator as the second separator(10) is connected to the second mixture supplying line; and a step that supplies to oil supplying line getting supply of the mixture in which glycerol is removed from the second separator and methanol as a blender is connected to the second separator and the third mixture supplying line. [Reference numerals] (AA) Oil; (BB) Methanol; (CC) RMGS step