煤气化技术是发展煤基化学品、煤基液体燃料、制氢、燃料电池、直接还原炼铁等过程工业的基础，气流床是煤炭气化技术发展的主要方向，其中气流床水煤浆气化技术应用最为广泛。本项目拟以多喷嘴对置式水煤浆气化炉热态试验平台为基础，基于炉内可视化技术和光谱诊断技术，同时引入高分辨率工业相机、彩色高速工业相机以及单色高速摄像仪，配合不同规格的高温内窥镜，开发高分辨率成像系统和高速成像系统，并整合可见光、紫外工业相机、特定波段的滤光镜与高温内窥镜，开发针对热态水煤浆气化炉的颗粒光谱诊断系统。在上述系统的支撑下，通过实验探究热态气化炉内颗粒形态、颗粒行为、颗粒反应、颗粒间相互作用、颗粒与耐火衬里相互作用时的颗粒附壁、撞击和破碎过程特性，并在研究颗粒气化反应过程中自由基分布和变化规律的基础上，建立颗粒气化反应机理模型，为多喷嘴对置式水煤浆气化炉设计及其工业操作的优化提供理论依据和实践指导。

As one of the key clean coal technologies, coal gasification is the basic technology for developing coal-based industries, such as chemical products, liquid fuel, hydrogen production, fuel cell, direct-reduction iron making, etc. The entrained flow gasification is the most widely used and mature technique in clean coal technology which has gained favorable economic and social benefit. Based on the bench-scale opposed multi-burner (OMB) coal-water slurry (CWS) gasifier, furnace visualization techniques and spectrum diagnostic techniques are applied to develop high resolution imaging system, high speed imaging system and Vis-UV spectrum diagnostic system for particles in gasifier with the introduction of high resolution industrial camera, high speed industrial cameras and UV camera combined with high temperature endoscopes. The particle morphology, particle behavior, particle reaction, interactions between particles, as well as particle attachment on refractory, impinging and break characteristics are investigated by experiments and testing systems described above. Model for particle reaction mechanism in gasifier is established with the studies on distribution and variation laws of free radical in consideration of a variety of particle characteristics. These studies would provide both theoretical basis and practical guidance for the design and optimization of industrial operation of OMB gasifiers.