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Investigation on bio-factory reaction technology for manufacturing fundamental chemicals from biomass resources

生物质资源生产基础化学品的生物工厂反应技术研究

基本信息

批准号：
21310056
负责人：
TSUTSUI Toshio
金额：
$ 12.23万
依托单位：
Kagoshima University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (B)
财政年份：
2009
资助国家：
日本
起止时间：
2009 至 2011
项目状态：
已结题

项目摘要

In order to establish a conversion process from biomass into basic chemicals, the hydrothermal conversion of bagasse or molasses in the pre-treating step and the catalytic conversion of the pre-treating products with zeolite catalyst in the second step were investigated. As the pre-treating of the biomass, hydrothermal reaction of the bagasse or molasses using only water or acid-added water was carried out, and the suitable conditions, product yields and the effect of using acid were clarified. The effect of intermediate species obtained in the pre-treating step on the species and yields of the product in the catalytic conversion step was also investigated. As a results, it was concluded that BTX was mainly obtained from levulinic acid, mixture of mono-and di-aromatic chemicals from 5-hydroxymethylfurfural or glycolaldehyde, and mainly di-aromatic chemicals and coke from mono-saccharides. For enhancing BTX yields and reducing coke formation, it was found that the diffusion of the intermediates into zeolite pores was important and the unsteady-state reaction operation was an effective reaction method.

为了建立生物质转化为基本化学品的工艺，研究了预处理阶段甘蔗渣或糖蜜的水热转化和第二阶段预处理产物在沸石催化剂作用下的催化转化。作为生物质的预处理，进行了仅使用水或加酸水的甘蔗渣或糖蜜的水热反应，并阐明了合适的条件、产物产率和使用酸的效果。还考察了预处理步骤中得到的中间体物种对催化转化步骤中产物的物种和产率的影响。结果表明，BTX主要由乙酰丙酸生成，由5-羟甲基糠醛或乙醇醛生成的单、双芳烃混合物，由单甲醚生成的主要是双芳烃和焦炭。为了提高BTX收率和减少焦炭生成，发现中间体向沸石孔中的扩散是重要的，非稳态反应操作是一种有效的反应方法。