High power generation efficiency and environmental performance are obtained in the integrated coal gasification combined cycle (IGCC) power plants. Hot gas clean-up is a key technology in IGCC systems. In this paper, a moving granular bed filter was constructed to examine the effect on collection efficiency when variations in the working parameters, namely, the mass flow rate, the filtration superficial velocity, and the amount of dust particulates at the inlet were introduced. A method to enhance particulate removal was proposed and tested in a lab-scale experiment. In addition, the study analyses the motion of gas flow in the inlet gas device of filter system. The results indicated a low amount of dust in the outlet of filter system when a mass flow rate of 0.008 kg/s and a filtration superficial velocity of 0.42 m/s were used. Furthermore, this new method is suitable for IGCC and other industrial areas involving high-temperature environments.

在整体煤气化联合循环（IGCC）发电厂中获得了高发电效率和环保性能。热气净化是IGCC系统中的一项关键技术。在本文中，构造了一种移动式颗粒床过滤器，以研究引入工作参数（即质量流量，过滤表观速度和入口处的灰尘颗粒）变化时对收集效率的影响。提出了一种提高颗粒去除率的方法，并在实验室规模的实验中进行了测试。此外，研究分析了过滤器系统进气装置中气流的运动。结果表明，当使用0.008 kg / s的质量流量和0.42 m / s的过滤表观速度时，过滤器系统出口处的灰尘较少。此外，