Abstract:

Cellulosic ethanol is an important component of renewable energy，in which the saccharification of lignocellulosic biomass is one of the key technologies. The conversion process based on cellulolytic enzyme seems to be the most promising one. An effective pretreatment is necessary to alter the structure of cellulosic biomass to make cellulose more accessible to the enzyme. For the advantages of without additional chemicals，less inhibitory products and higher pentosan recovery，liquid hot water pretreatment become attractive. This paper reviews the properties of liquid hot water and its application in biomass pretreatment，especially the process and mechanism. Prospects of research and application of liquid hot water pretreatment are also discussed.

摘要：

木质纤维素燃料乙醇是可再生能源的重要组成部分，其中可发酵糖的制取技术是木质纤维素乙醇化的关键技术之一。原料经过预处理后再进行酶解被认为是最有前景的糖化方式。高温液态水预处理技术与其它方法相比显示了独特的优势，如不需添加化学试剂、降解产物少等。本文在总结了高温液态水性质的基础上，对它在生物质预处理过程中各组分（半纤维素和木质素）的水解过程及机理进行了较详细的综述和分析。最后对高温液态水预处理技术在木质纤维素糖化领域中的研究和应用前景进行了展望。