Linking Zeolite Physical & Chemical Properties to Flow Behaviour

拟议的博士学位是伦敦帝国理工学院和英国强生马泰公司合作的，旨在通过建立沸石的物理/化学性质与不同工艺中的流动行为之间的联系，扩大关于沸石粉末流动行为的文献。将特别注意热过程，如焙烧和干燥对粉末流动的影响。这些实验将对FMI骨架沸石进行，从中将广泛研究ZSM-5型沸石。最终目标是建立对沸石的单颗粒性质如何与本体行为相关的机械理解，这将极大地帮助开发高效和有利可图的粉末加工和制造方法。因此，这项工作将极大地有助于预测放大过程中粉末流动的技术风险和潜在问题，最大限度地减少建模时间(需要通过测量估计粉末流动)，成功地设计设备和调整沸石的性能，以及了解每个工艺对沸石质量的影响。最重要的是，将沸石的物理化学性质与其粉末流动行为联系起来，最终将为建立每个工艺的粉末流动特性之间的联系铺平道路。

The proposed PhD is a collaboration between Imperial College London and Johnson Matthey, UK aiming to broaden the literature on the powder flow behaviour of zeolites by establishing a link between the physical/chemical properties of zeolites and the flow behaviour in different processes. Particular attention will be given to the influence of thermal processes, such as calcination and drying on the powder flow. The experiments will be conducted for FMI framework zeolites from which the ZSM-5 type will be extensively studied.The end goal is to build a mechanistic understanding of how single-particle properties of zeolites relate to the bulk behaviour which can immensely help the development of approaches for efficient and profitable powder processing and manufacture. Hence, this work will prove greatly beneficial for the prediction of technical risks and potential issues in powder flow during scale-up, the minimisation of modelling time which requires powder flow estimation via measurements, the successful design of equipment and tuning the properties of the zeolite and the understanding of the impact of each process on the quality of the zeolite. Most importantly, relating the physiochemical properties of the zeolite to its powder flow behaviour will ultimately pave the way for establishing a link between the powder flow characteristics of each process.