THE STATUS OF AND KEY BARRIERS IN LIGNOCELLULOSIC ETHANOL PRODUCTION: A TECHNOLOGICAL PERSPECTIVE

摘要：

The development of biorefineries to produce fuel ethanol and commodity chemicals from lignocellulosic biomass is a potential alternative to current reliance on non-renewable resources. However, many technological barriers remain despite research progress in the past several decades. This article examines the major process barriers in biochemical conversion of biomass to cellulosic ethanol. We review the key pretreatment processes, including a process recently developed by the authors for biomass conversion, and the technical potentials for commercialization. The importance of feedstock physical size reduction and issues related to size-reduction energy consumption and substrate size characterization are also discussed. The article also analyzes and compares enzymatic conversion of cellulose from different feedstocks and the recovery of hemicellulose sugars from different pretreatments. Finally, we discuss the commercial viability of the existing processes in terms of the availability of commercially proven capital equipment.

关键词： Pretreatment lignocellulose bioenergy saccharification cellulosic ethanol hydrolysis size reduction SPORL

作者: J.Y. ZHU G.S. WANG X.J. PAN R. GLEISNER

作者单位: U.S. Forest Service,Forest Products Laboratory,Madison,WI,USA;Department of Biological Systems Engin Tianjin Key Laboratory of Pulp and Paper,Tianjin University of Science and Technology,Tianjin,China Department of Biological Systems Engineering,University of Wisconsin,Madison,WI,USA U.S. Forest Service,Forest Products Laboratory,Madison,WI,USA

会议类型: 国际会议

会议名称: 2008年生物质能源技术国际会议

会议地点: 广州

会议语种:英文

页码: 915-926

在线出版日期: 2008-12-03（万方平台首次上网日期，不代表论文的发表时间）