Abstract: High-efficiency gas purification technology offers dual environmental benefits. It effectively improves air quality, contributes to energy conservation and carbon reduction goals, and protects downstream processing units. As enterprises increasingly prioritize energy efficiency, wet flue gas purification methods are facing growing challenges. These methods are marked by high energy consumption and potential secondary pollution risks. In contrast, dry gas purification technologies are emerging as critical areas for development. They are more energy-saving and environmentally friendly. Moving bed filters are recognized as key technologies in dry flue gas purification. They are valued for their high efficiency and low energy consumption in high-temperature gas purification. This review focuses on the application of moving bed filtration technology in high-temperature gas purification. It systematically summarizes the technology's recent research progress and engineering practices. First, the basic structures of moving bed filters are classified. Their applicable scenarios are also introduced. Next, an in-depth analysis is conducted on the filtration mechanisms and characteristics of various types. These include co-current, counter-current, cross flow, and hybrid systems. Additionally, the practical value of moving bed filters in industrial applications is discussed. The economic and environmental benefits which they bring in real industrial scenarios are elaborated. Finally, emerging application potentials and recommended research priorities are outlined. It provides insights and directions for the technology's further development.

Key words: moving bed filter, gas-solid separation, high-temperature gas cleaning, collection efficiency, pressure drop

摘要： 发展高效气体净化技术，不仅有利于空气质量改善，还有助于实现节能降碳目标，同时对后续工艺单元起到保护作用。随着企业对节能工作的重视程度日益加深，在烟气净化技术的选择上，能耗偏高且可能带来二次污染的湿法烟气净化逐渐面临挑战，而更为节能环保的干法烟气净化技术则亟待发展。移动床过滤器凭借其在高温气体净化中展现出的高效率和低能耗特点，被认为是烟气干法净化的关键技术之一。本工作对移动床过滤技术在高温气体净化领域的应用的研究进展与工程实践进行了全面综述。首先，分类介绍了移动床过滤器的基本结构及其相适应的应用场景；其次，深入且细致地分析了不同类型移动床过滤器的过滤机制和特点，包括顺流式、逆流式、错流式及组合式等移动床过滤器。再次，对移动床过滤器在工业应用中的实践价值进行了探讨，结合实际工业场景，阐述了其带来的经济效益和环境效益；最后，针对未来的研究方向和应用前景进行了展望，为该技术的进一步发展提供了思路和方向。

关键词: 移动床过滤器, 气固分离, 高温气体净化, 捕集效率, 压降