作为一种气体植物激素和大气污染物，乙烯的催化燃烧脱除过程要求催化剂必须兼具优良的室温催化活性/稳定性和强化的热/质传递及渗透性能。因此，结构化催化剂和反应器成为必然选择，即在寻求和研制优良催化活性组分和助剂的同时，还须加强与催化剂达到良好“传质/传热”协同效果的过程强化研究。本项目基于“自上而下（Top-Down）”的反应器（Top，流动与传递）-催化剂（Down，表界面反应）一体化设计理念，研制新型整装式“泡沫/纤维@氧化物-贵金属”核-壳结构催化剂，以实现反应器内流动和传递与表界面乙烯催化燃烧反应的协同耦合，创制一种室温活性高、稳定性和渗透性优良的结构化催化剂。研究催化剂的宏-微-纳结构与物化性质对催化性能的影响关系。建立模拟、动力学和反应产物及床层温度分布测定实验方法，进行催化剂织构-流体流动与传递-过程强化的构效研究。

For the removal of plant hormone and atmospheric pollutant ─ ethylene (C2H4) via catalytic combustion, the ideal catalyst should be characterized in term of room-temperature activity/stability and enhanced heat/mass transfer and permeability. For this purpose, the use of structured catalysts and reactors (SCRs) is an inevitable choice for process intensification of mass/heat transfer coupling with the development of catalytically active components and promoters. Herein, the principle goal is to explore an excellent structured catalyst for room-temperature combustion of trace C2H4 based on one-pot ‘Top-Down’ design strategy. Via the synergistic coupling of the hydrodynamics and transport inside reactor with the surface catalysis, this strategy can provide an efficient and effective monolithic catalyst with the combination of high room-temperature activity, remarkable stability, high permeability and enhanced heat/mass transfer. Effects of structural features from macro- to micro-scales and physico-chemical properties of the microstructured “foam/fiber@oxide-precious-metal” core-shell catalysts will be systematically investigated on their catalytic performance. Computational fluid dynamics (CFD) code FLUENT in combination with experimental testing will be employed to simulate the temperature and reaction distributions inside such monolithic catalytic bed, clarifying the structure-performance relationships between catalyst morphology, hydrodynamics/transport ability and process intensification.