多孔材料负载离子液体的功能化设计及对油脂酯交换催化作用

项目名称： 多孔材料负载离子液体的功能化设计及对油脂酯交换催化作用

项目编号： No.21476062

项目类型： 面上项目

立项/批准年度： 2015

项目学科： 有机化学

项目作者： 谢文磊

作者单位： 河南工业大学

项目金额： 88万元

中文摘要： 氢化油脂中反式脂肪酸对人类健康有害，因此引起了食品安全问题。油脂酯交换可替代氢化方法生产出功能性食用油脂制品，研究油脂酯交换多相催化剂对清洁生产和绿色食品工程具有重要意义。本项目拟将功能化离子液体负载到多孔载体上，设计和创制绿色功能化催化材料，研究其催化油脂酯交换催化性能。通过离子液体结构和性能的调控以及载体变化，使催化剂活性、选择性和稳定性得到提高。研究催化剂性能受制备方法和条件的影响规律。采用FT-IR、DTA-TG、SEM、TEM、XRD、XPS、AFM、NMR、TPD、氮气-吸附脱附实验和Hammett函数滴定等技术对催化剂表征，研究催化活性中心结构特征和性能调控规律，揭示催化剂表面物质结构与催化剂活性的关系，探讨载体对催化剂活性、选择性和稳定性的影响。期望通过对离子液体的调控，载体的改变，以及对其功能的设计和优化，探明表面物质结构、表面性质与催化剂性能的构效关系。

中文关键词： 催化剂设计；功能材料；油脂；酯交换；离子液体

英文摘要： The trans-fatty acid in hydrogenated oil is shown to have detrimental and poses a threat to human health, thereby resulting in food safety issues. The interesterification of fats and oils is an alternative approach for hydrogenation method to produce edible functional oil products. Studies on the heterogeneous catalysts for the interesterification of fats and oils are of significant interest for clean production and green food engineering. In this project the functional ionic liquid is immobilized on porous carriers to design and fabricate green catalytic materials, and the obtained heterogeneous catalyst is empolyed for the interesterification of fats and oils. By varying the type and structure of ionic liquid and changing the carriers, the catalytic activity,selectivity and stability of the heterogeneous catalysts are imporved accordingly;and the influence of the catalyst preparation method and conditions on the performance of the heterogeneous catalysts is investigated. Various techniques, such as FT-IR、DTA-TG、SEM、TEM、XRD、XPS、AFM、NMR、TPD、nitrogen-adsorption desorption experiment and Hammett titration method, are used for the heterogeneous catalyst characterization.On the basis of the catalyst characterization results the structure of catalytic sites of the catalyst and the catalytic performance control are studied, and a correlation of the catalytic performance of the catalysts with the structure of catalytic sites is established. Besides,the effect of different carriers on the catalytic performance of the catalyst is also investigated. A clear structure-property relation between the structure of ionic liquids, and surface properties of the solid catalysts with the apparent catalytic performance is expected to be ascertained through the controllable fabrication of ionic liquids,the variation of carriers, and the performance control and optimization design of the catalysts, giving the fundamental insight into the effeient active sites of the heterogeneous catalysts for the interesterification of fats and oils.

英文关键词： Catalyst design;Functional material;Oil;Interesterification;Ionic liquid