Method and Device for Producing Bio-Diesel and Fermentation Material by Culturing Microalgae

摘要

The present invention relates to a method for producing biodiesel by fractionating lipids from microalgae by contacting a cultured microalgae with a lipid extracting solvent and cultivating the fractionated microalgae or producing various fermented products such as ethanol, To a method and an apparatus capable of simultaneously producing biodiesel and a fermentation product and reducing carbon dioxide. The method for producing biodiesel and fermented product by culturing microalgae according to the present invention comprises the steps of: culturing microalgae; The lipid of the microalgae culture medium is dissolved in the lipid extraction solvent by bringing the lipid extraction solvent into contact with the culture solution by mixing the microalgae culture solution with a lipid extraction solvent which does not affect survival of the microalgae, A step of fractionating a lipid-soluble solution and a microalgae dissolved in a lipid extraction solvent; Regenerating a part of the fractionated microalgae; Fermenting the remainder of the fractionated microalgae with one of ethanol, butanol and organic acid; Separating the lipid from the fractionated lipid dissolution solution; A process for producing biodiesel from the separated lipid; And separating any one of ethanol, butanol and organic acid from the fermentation product in the fermentation process; .