纤维素在超临界水中的反应

纤维素是一种非常有价值的可再生资源，通过其反应可以获得多种有用的物质。对纤维素在超临界水中的反应进行了综述。在没有催化剂的情况下，纤维素在超临界水中水解生成葡萄糖、果糖、低聚物等；对纤维素水解的设备、产物分布以及纤维素水解反应机理进行了阐述。采用Ni，Pt，Ru，KOH等作催化剂，纤维素在超临界水中发生气化反应，生成的气体产物主要为H2，CO2和CH4；介绍了纤维素及其主要水解产物葡萄糖的制氢反应过程。对纤维素超临界水反应技术的发展前景进行了展望.

Reactions of Cellulose in Supercritical Water

Cellulose IS a very valuable renewable resource.A variety of useful chemical compounds can be produced by the reactions of cellulose.The reactions of cellulose in supercritical water are reviewed.In the absence of a catalyst,the products for cellulose hydrolysis in supercritical water are glucose,fructose and oligomers.The experimental set-up,product distribution as well as mechanism of cellulose hydrolysis in supercritical water are discussed.Using a catalyst such as Ni,Pt,Ru,or KOH,the gasification reaction of cellulose in supercritical water occurred,and the main gas products produced were H_2,CO_2 and CH_4.The hydrogen production processes from cellulose and glucose,which is the main product of cellulose hydrolysis reaction,are introduced.The prospect of cellulose reaction technology in supercritical water is discussed.