关键词: 生物基产品, 分级转化, 汽爆, 酶解, 发酵

Abstract: Bioprocessing of biomass to bioenergy, biomaterials and biochemicals has been becoming a hot topic internationally. 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.

Key words: biobased product, fractionation-conversion, steam explosion, enzymatic hydrolysis, fermentation