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论文类型：期刊论文

发表时间：2012-11-01

发表刊物：BIORESOURCE TECHNOLOGY

收录刊物：SCIE、EI、PubMed、Scopus

卷号：123

页面范围：324-331

ISSN号：0960-8524

关键字：Acetic acid; Corncob; FeCl3; Furfural; Mass heat transfer

摘要：In order to increase furfural yield and lignin removal, both FeCl3 and acetic acid were used to co-catalyze the hydrolysis of corncob. A series of experiments were carried out to investigate the effects of acetic acid, FeCl3 concentrations and temperatures on furfural production and residue characteristics. The results showed that high FeCl3 concentrations caused serious cellulose degradation while acetic acid was more effective for lignin removal. A maximum furfural yield of 67.89% (35.74% higher than that in conventional sulfuric acid-catalyzed process) was obtained at 180 degrees C in the presence of 20 mM of FeCl3 and 3% of acetic acid. Simultaneously, lignin removal reached 54.79%, and 74.29% of the cellulose was remained for further utilization. Acetic acid and FeCl3 co-catalyzed hydrolysis was not only a high efficiency and environmental friendly technique, but also provided a possibility to utilize the furfural residue for ethanol production and other industries. (C) 2012 Elsevier Ltd. All rights reserved.