【摘要】 固体磷酸为催化剂液化竹屑制备生物基多元醇，利用FT-IR、GC-MS、NMR等技术和方法对液化产物组成进行了表征，研究其反应机理。研究结果表明：Vinyl ethyl carbitol等烯烃类的生成主要是通过固体磷酸催化PEG400一端脱去羟基形成的，而戊二酸物质等物质主要是由固体磷酸催化纤维素等生物质通过氧化重排而形成，除此之外，固体磷酸还解决液化产物酸值高的问题。更多还原

【Abstract】 In this paper, the biobased polyols were prepared by liquefaction of bamboo chips with solid phosphoric acid as catalyst, and then the components of the liquefaction products were characterized by FT-IR, GC-MS, NMR and other techniques to study the reaction mechanism. The results show that the formation of Vinyl ethyl carbitol and other alkenes was mainly formed by the dehydroxylation of one end of PEG400 catalyzed by solid phosphoric acid, while substances such as glutaric acid were mainly formed by the reoxidation of biomass such as cellulose catalyzed by solid phosphoric acid. In addition, solid phosphoric acid also solved the problem of high acid value in liquefaction products.更多还原