用 ZSM-5 沸石从硬木废水性半纤维素溶液中生产糠醛。
Production of furfural from waste aqueous hemicellulose solution of hardwood over ZSM-5 zeolite.
机构信息
Key Laboratory of Biofuels, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, China; University of Chinese Academy of Sciences, Beijing 100049, China.
Tianjin Key Laboratory of Pulp & Paper, Tianjin University of Science & Technology, Tianjin 300457, China.
出版信息
Bioresour Technol. 2014 Nov;172:453-456. doi: 10.1016/j.biortech.2014.09.026. Epub 2014 Sep 16.
This study aimed to produce furfural from waste aqueous hemicellulose solution of a hardwood kraft-based dissolving pulp production processing in a green method. The maximum furfural yield of 82.4% and the xylose conversion of 96.8% were achieved at 463K, 1.0g ZSM-5, 1.05g NaCl and organic solvent-to-aqueous phase ratio of 30:15 (V/V) for 3h. The furfural yield was just 51.5% when the same concentration of pure xylose solution was used. Under the optimized condition, furfural yield was still up to 67.1% even after the fifth reused of catalyst. Catalyst recycling study showed that ZSM-5 has a certain stability and can be efficiently reused.
本研究旨在采用绿色方法从硬木硫酸盐基溶解浆生产加工过程中的废水性半纤维素溶液中生产糠醛。在 463K、1.0g ZSM-5、1.05g NaCl 和有机溶剂与水相体积比为 30:15（V/V）的条件下反应 3 小时，糠醛得率最高可达 82.4%，木糖转化率可达 96.8%。当使用相同浓度的纯木糖溶液时，糠醛得率仅为 51.5%。在优化条件下，即使催化剂重复使用五次后，糠醛得率仍高达 67.1%。催化剂回收研究表明，ZSM-5 具有一定的稳定性，可以有效地重复使用。
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