Conversion of Wood Based Hemicellulose Prehydrolysate into Succinic Acid Using a Heterogeneous Acid Catalayst in a Biphasic System
申请人:Lakehead University
公开号:US20190382328A1
公开(公告)日:2019-12-19
A novel approach for the conversion of biomass based hemicellulose prehydrolysate to high value succinic acid has been investigated using a heterogeneous acid catalyst, Amberlyst 15 and hydrogen peroxide. A vital intermediate in this process, furfural, was oxidized in a biphasic system to produce succinic acid. Production of furfural in good yields is a limiting step in such processes for a number of reasons. Among the organic solvents evaluated, toluene was found to be an ideal solvent for furfural extraction and facilitated the conversion of furfural to succinic acid. Simultaneous extraction of furfural into the organic solvent as it is produced, increased the overall yield. It was observed that the developed method resulted in a succinic acid yield of 49% from the furfural obtained from hemicellulose prehydrolysate. It was found that 50 mg of Amberlyst 15 per mmole of furfural resulted in 100% FA conversion in less time.
一种用于将基于生物质的半纤维素预水解产物转化为高附加值琥珀酸的新方法已经得到研究,使用了一种异相酸催化剂Amberlyst 15和过氧化氢。在这一过程中的一个关键中间体,糠醛,在一个两相系统中被氧化以产生琥珀酸。由于多种原因,糠醛的高产率生产是这类过程中的一个限制步骤。在评估的有机溶剂中,甲苯被发现是糠醛提取的理想溶剂,并促进了糠醛向琥珀酸的转化。将糠醛同时提取到有机溶剂中,并随着其产生,增加了总产率。观察到,该方法使从半纤维素预水解产物中获得的糠醛产生49%的琥珀酸收率。发现每毫摩尔糠醛使用50毫克Amberlyst 15在更短时间内实现了100%的琥珀酸转化。