Department of Biosystems Engineering, University of Manitoba, E2-376 EITC Winnipeg, Manitoba, Canada R3T5V6.
Biotechnol Adv. 2011 Nov-Dec;29(6):675-85. doi: 10.1016/j.biotechadv.2011.05.005. Epub 2011 May 23.
Development of sustainable energy systems based on renewable biomass feedstocks is now a global effort. Lignocellulosic biomass contains polymers of cellulose, hemicellulose, and lignin, bound together in a complex structure. Liquid biofuels, such as ethanol, can be made from biomass via fermentation of sugars derived from the cellulose and hemicellulose within lignocellulosic materials, but the biomass must be subjected to pretreatment processes to liberate the sugars needed for fermentation. Production of value-added co-products along-side biofuels through integrated biorefinery processes creates the need for selectivity during pretreatment. This paper presents a survey of biomass pretreatment technologies with emphasis on concepts, mechanism of action and practicability. The advantages and disadvantages, and the potential for industrial applications of different pretreatment technologies are the highlights of this paper.
基于可再生生物质原料的可持续能源系统的发展现在是全球的努力。木质纤维素生物质包含纤维素、半纤维素和木质素的聚合物，它们结合在一个复杂的结构中。液体生物燃料，如乙醇，可以通过发酵木质纤维素材料中的纤维素和半纤维素衍生的糖来从生物质中制成，但是生物质必须经过预处理过程来释放发酵所需的糖。通过集成生物炼制工艺生产与生物燃料一起的附加值联产产品，在预处理过程中需要选择性。本文综述了生物质预处理技术，重点介绍了概念、作用机制和实用性。本文的重点是不同预处理技术的优缺点及其在工业应用中的潜力。
