Abstract
A continuous process of supercritical extraction coupling with supercritical methanol transesterification was put forward to prepare biodiesel directly from full-fat soybean flakes. This method is meaningful to the industrialized production of biodiesel. It can lower the high cost of the refined vegetable oil as feedstock. Furthermore, it gives a possibility that a mobile biodiesel processor could be easily moved to various locations where raw materials are available and produce biodiesel in situ. The experimental results indicated that a residence time of more than 2.5h was required to obtain a stable fatty acid methyl ester yield. The maximum biodiesel yield of 86% was obtained at 350°C, 20MPa and 3h, with the molar ratio of methanol-to-oil of about 42:1. In addition, based on the investigation of the process optimization, oil extraction was found to be the crucial step for the coupling process and other promising routes were proposed to improve both the production efficiency and the capacity.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
