Abstract
Etherification of biodiesel-based glycerol with bioethanol was investigated over a series of catalysts. The etherification of glycerol performed on acid catalysts, such as H-ZSM5, H-β, tungstophosphoric acid (HPW), FeCl3, AlCl3, and H2SO4, was found. Basic catalysts (such as alkaline earth oxides, MgO) are inactive for the reaction. Bulk HPW and SiO2-supported HPW catalysts exhibited the highest activity among the tested catalysts, with a 97.1% conversion of glycerol. Over the HPW catalyst, the etherification reactions were carried out at different temperatures, varied ratios between ethanol and glycerol, different catalyst amounts, and different reaction times. The SiO2-supported HPW catalyst has a high initial activity, but it deactivated gradually because of the leaching of HPW.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: 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.