การทดลองผลิตไบโอดีเซลจากน้ำมันพืชในเมทานอลภาวะเหนือวิกฤตโดยกระบวนการแบบต่อเนื่อง / สุกัญญา มากมี = Experimental production of biodiesel from vegetable oil as prepared in supercritical methanol by continuous process / Sukunya Magmee
Experimental production of biodiesel (fatty acid methyl esters) from coconut oil and palm kernel oil were studied in supercritical methanol without using any catalyst by continuous process. Experimentals were carried out in a plug flow reactor and reactions were studied at 270 ํC, 300 ํC and 350 ํC, at a pressure of 19 MPa with various oil to methanol mole ratios ranging from 1:6 to 1:42. It was found that the best condition to produce methyl esters from coconut oil and palm kernel oil was reaction temperature of 350 ํC with a molar ratio of vegetable oil to methanol being 1:24, methyl esters yields at 90% and 85% conversion for coconut oil and palm kernel oil respectively at a space time of 400 seconds. The rate of transesterification of both vegetable oils was found to be first order and increases with temperature and triglycerides concentration. The produced methyl ester fuel properties met the requirement of biodiesel and low speed diesel fuel standards.