双功能离子液体中均相催化木质纤维素液化过程与机理研究

项目名称： 双功能离子液体中均相催化木质纤维素液化过程与机理研究

项目编号： No.21276094

项目类型： 面上项目

立项/批准年度： 2013

项目学科： 化学工业

项目作者： 李雪辉

作者单位： 华南理工大学

项目金额： 80万元

中文摘要： 上世纪以来人类物质文明的快速发展主要是以消耗地球上不可再生资源为代价且带来诸如能源危机、环境污染及气候变迁等系列问题。可再生资源的开发及其高效与洁净利用技术的发展是解决人类社会可持续发展的主要手段之一。将来源丰富且可再生的生物质资源直接转化为生物质能源或化工原材料，意义重要且符合"低碳经济"的理念。本项目研究通过构建对生物质各主要组份具有溶解作用且具有酸催化功能的双功能离子液体体系，部分溶解的生物质被酸性离子液体原位均相催化液化，液化产物被保护溶剂萃取，同时打破生物质的溶解及催化液化平衡，有望实现生物质的快速与高效转化。通过系统考察双功能离子液体体系中生物质的溶解与催化液化行为，获得双功能离子液体体系的组成、催化液化工艺与液化产物分布之间的关联规律、液化过程机理并为离子液体体系中生物质高效转化过程提供借鉴与指导。

中文关键词： 离子液体；生物质；反应历程；催化机理；强化耦合

英文摘要： It is well known that great progress achieved in material civilization for human beings in the last few decades was mainly on the expense of non-renewable global resources, which has brought lots of realistic problems such as energy crisis, environmental pollution and climate change. Hence, the exploitation and development of novel and cleaner technologies for the efficient utilization of carbon neutral biomass have been recognized as one of the most predominated approaches for sustainable development of our society. Therefore, efficient and direct transformation of readily abundant and renewable biomass to high heating value biofuel and value-added biochemicals is of great significant and in good agreement with the concept of low carbon economy. In this project, a series of novel and bifunctional ionic liquid systems are going to be designed and constructed for the dissolution and catalytic liquefaction of lignocelluloses and/or their constituents. These bifunctional ionic liquid systems are composed of ionic liquids for the dissolution of lignocellulose constituents and acidic ionic liquid for in situ catalytic liquefaction of partly dissolved lignocellulose constituents homogeneously. The extraction of liquefaction products by the upper protection solvent is able to have the catalytic conversion equilibrium p

英文关键词： ionic liquid；biomass；reaction pathway；catalytic mechanism；coupling and intensafication