Patent ID: 11091712

Abstract:
A method for producing biodiesel and triacetin includes steps as follows. A bio-oil source is provided; the bio-oil source is palm oil acid or palm oil sludge. A bio-oil source pretreatment step is performed, wherein the bio-oil source is mixed with ash to decolor. A pre-esterification step is performed, wherein methanol and a pre-esterification catalyst are mixed, so as to form an organic phase solution and an aqueous phase solution. A transesterification step is performed, wherein the methanol and a lithium silicate catalyst are mixed, so as to form a crude biodiesel phase solution and a crude glycerol phase solution. A washing step is performed, wherein purified biodiesel is collected. A glycerol separating step is performed, wherein purified glycerol is collected. A glycerol esterification step is performed, wherein triacetin is collected.