Particle and fluidization technologky

粒子技术应用于许多行业，特别是化工和材料行业。流态化是处理粉末状颗粒的一种非常有效的方法，目前已开发出多种类型的沸腾床反应器。在过去的30年里，人们发现高速流化床反应器的效率更高，这种高速反应器包括湍动床反应器和循环床反应器。湍动床反应器具有反应强度高、体积小、传质能力强等优点，但存在颗粒返混问题；循环床反应器返混少、传质能力强，但体积大、造价高。第一个拟议的研究项目是继续努力开发一种结合了两者的优点的新型循环湍流流态化反应器。

Particle technology is used in many industries especially the chemical and materials industries. Fluidization is a very efficient method in handling powdered particles and many types of fluidized bed reactors have been developed. In the past 30 years, high-velocity fluidized bed reactors were found to be more efficient and such high-velocity reactors include the turbulent fluidized bed reactors and the circulating fluidized bed reactors. Turbulent bed reactors provide high reaction intensity and compact size as well as high mass transfer, but suffers from particle backmixing, while circulating bed reactors have less backmixing and high mass transfer, but are bulky and costly to build. The first proposed research project is to continue an endeavour to develop a new circulating turbulent fluidized bed reactors that combine the benefits of both.