USDA Forest Service, Forest Products Laboratory, One Gifford Pinchot Drive, Madison, WI 53726-2398, USA.
Appl Microbiol Biotechnol. 2010 Jul;87(3):847-57. doi: 10.1007/s00253-010-2654-8. Epub 2010 May 15.
This mini review discusses several key technical issues associated with cellulosic ethanol production from woody biomass: energy consumption for woody biomass pretreatment, pretreatment energy efficiency, woody biomass pretreatment technologies, and quantification of woody biomass recalcitrance. Both total sugar yield and pretreatment energy efficiency, defined as the total sugar recovery divided by total energy consumption for pretreatment, should be used to evaluate the performance of a pretreatment process. A post-chemical pretreatment wood size-reduction approach was proposed to significantly reduce energy consumption. The review also emphasizes using a low liquid-to-wood ratio (L/W) to reduce thermal energy consumption for any thermochemical/physical pretreatment in addition to reducing pretreatment temperature.
木质生物质预处理的能耗、预处理的能量效率、木质生物质预处理技术以及木质生物质抗降解能力的定量分析。预处理过程的性能应该用总糖得率和预处理能量效率（定义为总糖回收量除以预处理的总能耗）来评估。本文提出了一种化学预处理后减小木片尺寸的方法，可显著降低能耗。此外，本文还强调在任何热化学/物理预处理过程中，除了降低预处理温度外，还应采用低液比（L/W）以减少热能消耗。
