| abstract |
The present invention relates to the selection of specific divalent metal homogeneous catalyst components for efficiently converting high acid value and low grade biooils into biodiesel in the acid value range of 10 to 200, and a technical field related to the conversion reaction using the same. Evenly dissolve the catalyst component containing a suitable concentration of divalent metal ions in the reaction mixture of high acid value bio-oil and methanol, in a batch or continuous reactor at a reaction temperature of 180-240 ° C., 20-40 atmospheres, or The present invention proposes a technique for efficiently preparing biodiesel by introducing them into a combined reaction system. |