离子液体溶剂——应对生物提纯的巨大挑战：木质素、纤维素、和半纤维素的萃取和分离
讲座名称：
离子液体溶剂——应对生物提纯的巨大挑战：木质素、纤维素、和半纤维素的萃取和分离
讲座时间：
2010-11-01
讲座人：
Robin D. Rogers
形式：
校区：
兴庆校区
实践学分：
讲座内容：
With the inevitable depletion of petroleum报告题目：离子液体溶剂——应对生物提纯的巨大挑战：木质素、纤维素、和半纤维素的萃取和分离(Ionic Liquid Solvents for the Grand Challenge Inherent in a Biorefinery: Extraction and Separation of Lignin, Cellulose, and Hemicellulose)
讲座时间： 2010年11月1日(星期一)上午 9:30
讲座地点：化工楼二楼会议室
with the inevitable depletion of petroleum-based resources, there has been an increasing worldwide interest in finding alternative resources, particularly from renewable resources including lignocellulosic biomass. Clean separation of the three major components of biomass is an important and challenging ‘Grand Challenge’ for the production of reproducible feedstocks for further chemical processing. Even though current ‘biorefinery’ concepts do emphasize other chemicals besides fuel, it is typically the cellulose and hemicellulose which are utilized in producing paper, fibers, membranes, and other commodity materials and chemicals, while lignin is usually burned for energy. There seems to be relatively little emphasis on using these biopolymers as polymers rather than feedstock for producing molecular chemical entities.
This presentation will discuss how the components of biomass interact with ionic liquids (ILs) and how these interactions can be used to manipulate solution-properties to process and regenerate biopolymers into a desirable form for specialized applications. The differing solubilities of the biopolymer fractions also allow the exploitation of the IL medium to provide a ready separation mechanism. The unique properties of ILs can be used to provide a platform for biomass to chemicals strategies and yield endless possibilities for forming environmentally-friendly new and enhanced materials.
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