生物柴油是一种可再生利用绿色洁净能源。2015年国家能源局发布《生物柴油产业发展政策》，提出废弃油脂非食用油料合成生物柴油的发展策略。面对高酸值废弃油脂非食用油料，现有酸碱二步法合成生物柴油工艺复杂、酸碱废水排放多，阻碍了其应用发展。本项目构筑一种短孔道酸碱双功能SBA-15催化剂协同催化酯化和酯交换一步合成生物柴油的新方法，主要研究：1）短孔道酸碱双功能催化剂的构效与性能关系；2）短孔道酸碱双功能催化剂的抗酸性；3）酸碱双功能协同催化酯化与酯交换的反应机制。通过金属掺杂调控催化剂孔类型大小与长度，减小长链油脂分子孔扩散阻力与沉积，提高催化剂活性和重复使用性；调控催化剂载体掺杂金属与嫁接酸碱基团种类、大小及比例，揭示短孔道酸碱双功能催化剂协同催化酯化与酯交换并抗游离脂肪酸对碱性位破坏的作用机制，为短孔道酸碱双功能SBA-15催化剂一步协同催化酯化和酯交换合成生物柴油提供理论基础与技术依据。

Biodiesel is an important part of green renewable energy which plays an important role in the green energy research. The current esterification and transesterification two-step preparation of biodiesel has some defects. We propose a new way for the synthesis of biodiesel by the synergistic catalysis on esterification and transesterification. Some acid-base bifunctional short-channel mesoporous molecular sieve catalysts are designed, which can catalize esterification and transesterification simultaneously. It can be very beneficial to reduce the channel length in order to facilitate diffusion of molecules to active sites when these materials are used in catalysis. By studying the surface of the dielectric properties of the molecular sieve catalysts and the acid-base properties of the supporter, the structure-activity relationships and reaction mechanism for the synergistic catalysis on esterification and transesterification will be revealed. We expect to propose a new method for the synthesis of biodiesel by the synergistic catalysis on esterification and transesterification, and promote the application of innovation in green renewable energy.