纤维素是一种丰富的生物质资源,具有可再生、可降解等优点,其转化和利用被认为是发展可持续能源的有效途径.本文从近几年的国内外科技文献（尤其是专利）入手,研究并综述了从天然纤维素原料中分离提取纤维素的工艺,分析并指出实现清洁分级分离纤维素、木质素、半纤维素,做到木质纤维素全生物量优化利用才是组分分离的未来.%Cellulose is a kind of abundant,renewable and biodegradable biomass.Its conversion and utilization is considered to be an effective way for the development of sustainable energy.In this paper,the process of separation and extraction of cellulose is summarized from the scientific literature at home and abroad in recent years（especially patents）.It is expected that to achieve the clean separation of cellulose,lignin,hemicellulose and the utilization of whole biomass in the future.
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