微波耦合特征催化剂催化热解生物质制备呋喃类衍生物的机制研究

Furan derivatives (furfural (FF) and 5-hydromethyl furfural (HMF) in particular) are the very important compounds of energy platform. At present, the key problem of the production of furan derivatives from biomass pyrolysis is how to facilitate the formation of furan derivatives and suppress their further oxidative condensation reaction. Therefore, a new process of fast in-situ catalytic pyrolysis of biomass combined with low-temperature microwave-heating for furan derivatives is proposed in the project. The transformation behaviors of cellulose and hemicellulose in biomass on catalyst with different acid and alkali activity will be further studied though experimental research, theoretical analysis and quantum chemistry simulation. The suppression mechanism of the effective regulation of target components and second reactions will be explored. The associated coupling mechanism of microwave and multifunctional green high-efficient and stable catalysts for preparation of bio-oil enriched in furan derivatives will be revealed. The research achievements will not only benefit the production of furan derivatives from high efficient conversion of biomass, but also provide a new way to high value utilization of abundant renewable biomass resources in China.

呋喃类衍生物（主要是糠醛/5-羟甲基糠醛（FF/HMF））是重要的能源平台化合物。目前如何促进呋喃类衍生物的形成并抑制其进一步发生氧化、缩合等反应是生物质热解制备呋喃类衍生物的关键问题。本项目将低温微波与特征多功能新型绿色高效稳定催化剂有机结合，提出生物质快速定向催化热解制备呋喃类衍生物的新工艺。本项目将采用实验研究、理论分析与量子化学模拟相结合的方法，深入研究生物质中的纤维素、半纤维素等在具有不同酸碱活性的催化剂作用下向呋喃类衍生物转化的反应过程机理，探索微波对目标组分的调变和二次反应的抑制机制，有望揭示低温微波协同特征多功能催化剂原位在线催化生物质制取富呋喃类衍生物生物油的关联耦合新机制。本项目的研究成果可为生物质高效转化为呋喃类衍生物提供理论基础和科学依据, 也将为我国丰富的可再生生物质资源的高值化利用提供一条新的途径，对“美丽中国”的建设具有重要意义。