The dust particles contained in the industrial flue gas are discharged from many industrial factories, which have seriously polluted the air and endangered the health of not only human beings but also the animals living on the earth, so they are gaining much attention all over the world. In order to provide possible solutions to the above problems, many filtration technologies have been proposed and developed. As a promising filtration method, the granular bed filter (GBF) based filtration technology has been widely used in the filtration of high temperature flue gas with complex components in recent years owing to its advantages of high efficiency, low cost, simplicity, and resistance to high temperature and high pressure. Inspired by the development of numerical simulation method and experimental technology, the performance of GBF has been optimized and improved, much deeper insight of the formation and growth of dust particles has been obtained. This review focus on the basic principle of the GBF and its performance investigated by numerical and experimental methods. The reviews and outlooks of investigations on the influence factors of GBF filtration performance and the development of performance optimization method of the GBF were also presented. In addition, the microscale mechanism of the agglomeration and growth of dust particles contained in the industrial flue gas during the filtration in the GBF by means of molecular dynamics simulation were introduced, the numerical and experimental method of dust particles filtration in GBF were also discussed. Finally, available recommendations for future research of GBF are proposed, which is expected to be helpful for actual industrial engineering applications.

中文翻译：

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工业烟气净化用颗粒床过滤器的过滤性能：模拟与实验综述


许多工业工厂排放的工业烟气中含有的粉尘颗粒，严重污染了空气，不仅危害人类，而且危害地球上动物的健康，因此受到世界各国的广泛关注。 。为了对上述问题提供可能的解决方案，许多过滤技术被提出和开发。作为一种很有前景的过滤方法，基于颗粒床过滤器（GBF）的过滤技术以其高效、低成本、简单、耐腐蚀等优点，近年来在成分复杂的高温烟气过滤中得到了广泛的应用。高温高压。受数值模拟方法和实验技术发展的启发，GBF的性能得到了优化和改进，对灰尘颗粒的形成和生长有了更深入的了解。本文重点介绍 GBF 的基本原理及其通过数值和实验方法研究的性能。并对GBF过滤性能影响因素的研究以及GBF性能优化方法的发展进行了综述和展望。此外，通过分子动力学模拟，介绍了工业烟气中粉尘颗粒在GBF过滤过程中团聚和生长的微观机理，并对GBF粉尘颗粒过滤的数值和实验方法进行了讨论。最后，提出了GBF未来研究的可用建议，有望对实际工业工程应用有所帮助。