ie8b03402_si_001.pdf (338.12 kB)

Kinetics of Hydrothermal Furfural Production from Organosolv Hemicellulose and d‑Xylose

Download (338.12 kB)
journal contribution
posted on 28.09.2018 by Jakob Köchermann, Jana Mühlenberg, Marco Klemm
Organosolv pulping processes are able to generate liquid hemicellulose fractions with a low cellulose and lignin content. Utilization of such streams is promising for production of high-value chemicals. In this study, on the basis of three reaction models, kinetics of an aqueous organosolv hemicellulose and d-xylose conversion into furfural was examined at temperatures between 160 and 200 °C using a continuous tube reactor. Furthermore, furfural degradation was investigated to consider the self-polymerization. Results were compared with previous studies and differences are discussed. Kinetic models showed slight differences for d-xylose conversion and stronger deviations for furfural formation. Overall, model 3, which includes the formation of a xylose intermediate, showed the best performance concerning the experimental results. Differences between d-xylose and organosolv hemicellulose conversion can be attributed mainly to sugar oligomers.