中文摘要：

生物质原料可以转化为能源、材料和化工产品，是国内外研究的热点．目前生物基产品制备过程中存在原料组分利用和转化技术单一、缺乏系统技术集成等问题．本工作从生物质的原料特点、转化过程和产品工程关键问题入手，综合多学科知识，提出了生物基产品过程工程这一理念．从全新的面向原料、过程、产品的角度，建立生物质分层多级转化技术体系，并以无污染汽爆及其组分分离技术、节水节能固态纯种发酵技术、秸秆固相酶解一液体发酵乙醇耦合技术和汽爆秸秆膜循环酶解耦合发酵技术4个关键技术为平台，形成生物基产品生态产业新模式，为实现生物质资源高值化利用和生物基产品生态产业化提供研发思路和技术平台．

英文摘要：

Bioprocessing ofbiomass to bioenergy, biomaterials and biochemicals has been becoming a hot topic intemationally. Presently, the main problem for bio-products preparation is lack of effective components fractionation technology and integrated conversion process. Based on cellulosic feedstock characteristic and key issues related to conversion process and product engineering, the concept of biobased product process engineering is proposed. In addition to giving a novel fractionation-conversion system of biomass, this paper also introduces four key technical platforms, namely unpolluted steam explosion and components fractionation, purified microbial solid-state fermentation, solid-phase hydrolysis coupled with liquid-phase ethanol fermentation, and recycling membrane hydrolysis-fermentation. The fractionation-conversion system will provide R＆D approach and technical support for the whole biomass utilization and bio-products eco-industrialization.