A New Technology for Utilization of Biomass Hydrolysis Residual Humins for Acetic Acid Production

BioResources

Gang Zhang¹  Junling Tu¹  Frank G. F. Qin¹  Xiaojuan Guo²  Yongjun Xu²  Shimin Kang²  Qifei Yang² 

[1] China;Guangdong Provincial Key Laboratory of Distributed Energy Systems, Dongguan University of Technology, Dongguan, 523808, China;

关键词: Humins;    Biomass;    Acetic acid;    Hydrothermal treatmen;    Wet oxidation;    Levulinic acid;   

DOI  :  10.15376/biores.11.4.9496-9505

来源: DOAJ

【 摘 要 】

Humins are a major byproduct formed from acid-catalyzed biomass hydrolysis and are usually considered as a low-value material. In this work, humins were completely degraded by a two-step technology, involving alkaline-catalytic hydrothermal treatment followed by wet oxidation. Using this technology, humins were converted to value-added acetic acid for first time. The highest acetic acid yield of 25.6% on a carbon basis or 37.2% on a mass basis was obtained with a purity of 46.2% based on the organic carbon in the aqueous product. This high-efficiency recovery of acetic acid is a new method for the effective utilization of humins, which is an important finding for biorefineries.

【 授权许可】

Unknown