Abstract
The pyrolysis of dealkaline lignin to phenols was performed in a rotary kiln reactor using grinding beads as filler. The effects of pyrolysis temperature and the amount and material of grinding beads on the liquid yield and composition were investigated. The results showed that the use of the rotary kiln reactor loaded with grinding beads could improve the efficiency of lignin pyrolysis. Temperature had a considerable influence on the pyrolysis process. The maximum liquid yield of 52.10 % was obtained at 500 °C and carrier gas flow rate of 300 mL min−1. Compared with other grinding beads, γ-alumina spheres could result in higher liquid yield and selectivity for guaiacols and alkylphenols. The liquid yield increased significantly with the use of grinding beads and increased with the increase in the number of grinding beads. However, both liquid yield and selectivity for guaiacol decreased when the volume ratio of grinding beads to reaction chamber increased from 1:2–2:3. The present study confirms the facilitative effect of grinding beads on the pyrolysis reaction, with the maximum increase of 86.87 % liquid yield and 12.58 % selectivity for guaiacol and alkyl phenols.
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.
