Abstract
The production of bio-oil from poplar sawdust Under direct/stepwise hydrothermal liquefaction (HTL) with Na2CO3 or Na2CO3/Fe as catalyst was investigated. The results showed that as the increase of liquefaction temperature in the stepwise HTL, the carbon content in heavy oil (HO) gradually increased, while the oxygen in light oil (LO) kept decreasing. The highest total bio-oil yield of 57.09% was obtained from the stepwise Na2CO3/Fe-catalyzed HTL with a residence time of 20 min. Via GC-MS analysis, it was found that the Na2CO3 catalyzed stepwise HTL dramatically improved the yield of dibutyl phthalate. While the Na2CO3/Fe catalyzed HTL helped promote the production of phthalic acid, butyl 2-ethylhexyl ester and phthalic acid, diisobutyl ester.
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.
