木质纤维素是地球上现存量最大的生物质资源，利用该类原料生产燃料乙醇是木质纤维素类生物质工业化的一个重要方向。选取纤维素乙醇生产工艺中的原料预处理、水解糖化、乙醇发酵，以及废水处理等关键技术点，利用专利文献的检索与分析方法，介绍了不同关键技术点的专利研究近况，旨在全面了解纤维素乙醇生产技术国内发展现状，从而为该项技术的研究方向和产业发展提供一定的专利参考信息。%Lignocellulose is the largest biomass resource on the earth, and using lignocellulose to produce fuel ethanol is an important direction of the industrialization of this biomass. In this paper, taking material pre-treatment, saccharification, alcohol fermentation, wastewater treatment and other key technical points in the process of cellulosic ethanol production as research objectives, in order to comprehensively understand the current development status and development trend of the cellulosic ethanol production technology, the global patent technology distribution and domestic patent technology status of the cellulosic ethanol production technology were studied by using retrieval analysis method of patent documents, important reference information was provided for the technology research and industrial development.
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