Furfural production from birch hemicelluloses by two-step processing: a potential technology for biorefineries
Furfural production from birch hemicelluloses by two-step processing: a potential technology for biorefineries
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DOI：
10.1515/hf-2015-0255
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发表时间：
2016-10
期刊：
影响因子：
2.4
通讯作者：
S. Rivas;C. Vila;V. Santos;J. Parajó
中科院分区：
文献类型：
--
作者：
S. Rivas;C. Vila;V. Santos;J. Parajó
Abstract Birch samples were subjected to non-isothermal autohydrolysis to obtain a solution of hemicellulosic saccharides and a solid phase mainly made up of cellulose and lignin. Based on kinetic modeling, operational conditions were identified which give rise to soluble saccharides and furfural derived from xylan in a yield of 80.5%. The soluble mixture was supplemented with 1% sulfuric acid and heated (directly or in the presence of methyl isobutyl ketone, MIBK) for furfural production. MIBK is used as an extraction agent to limit furfural consumption by side reactions. Operating in single phase at 170°C, up to 44.8% of the potential substrates were converted into furfural. In experiments performed in biphasic media, the effects of MIBK were assessed by empirical modeling and about 75% of the potential substrates were converted under selected conditions.
