Subject Area物理化学
Conversion of cellulose and lignocellulose in ionic liquids
Zhao ZB(赵宗保); Li CZ(李昌志); Zhang ZH(张泽会); Wang Q(王倩)
Conference NameThe 5th Sino-US joint conference of chemical engineering
Conference Date2009-10-13
Conference Place中国
Funding Organization中科院过程工程研究所, 等
AbstractConversion of cellulose and lignocellulose in ionic liquids Zongbao Kent Zhao, Changzhi Li, Zehui Zhang, Qian Wang Dalian Institute of Chemical Physics, CAS, Dalian 116023, P. R. China Monomeric carbohydrates are the most important materials that can be directly used as feedstock for production of biofuels and bio-based chemicals. However, carbohydrates are more widely presented as polymers such as starch, cellulose, hemicellulose and chitin. So far, hydrolysis of starch has been well-established. Because cellulose and hemicellulose exist routinely and concurrently with lignin as found in lignocellulosic biomass, and cellulose forms a highly crystalline structure due to the presence of extensive intra- and inter-molecular hydrogen bonds and van der Waals interactions, it remains a major challenging for cost-effective hydrolysis of (lingo)cellulosic materials. Many efforts have been devoted to depolymerization of cellulose and subsequent transformations. These included acidic hydrolysis, enzymatic hydrolysis, hydrolysis in supercritical water and oxidative or reductive depolymerization. However, most previous works performed reactions under heterogeneous conditions, i.e., solid cellulosic materials in aqueous media, which made the reaction inefficient. We demonstrated that hydrolysis of cellulose and cellulosic materials could be realized much more efficiently in ionic liquids under mild conditions, yet no pretreatment process was necessary[1,2,3]. In addition, chemical transformation of lignocellulosic materials, such as corn stover and wood chips, in ionic liquids produced furan derivatives 5-hydroxyfurfural and furfural in high yields.[4] As separation of ionic liquids from monomeric carbohydrates or furan derivatives is readily achievable, conversion of biomass in ionic liquids should be a powerful technology to extract biofuels and chemicals form renewable resources. This paper will present our most recent results in this area.
Document Type会议论文
Corresponding AuthorZhao ZB(赵宗保)
Recommended Citation
GB/T 7714
Zhao ZB,Li CZ,Zhang ZH,et al. Conversion of cellulose and lignocellulose in ionic liquids[C],2009:105/2.
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