Linking Zeolite Physical & Chemical Properties to Flow Behaviour

拟议中的博士学位是伦敦帝国理工学院和英国庄信万丰公司的合作项目，旨在通过建立沸石的物理/化学性质与不同过程中的流动行为之间的联系，拓宽沸石粉末流动行为的文献。将特别注意热过程的影响，如煅烧和干燥对粉末流动的影响。实验将对FMI框架分子筛进行，其中ZSM-5型分子筛将被广泛研究。最终目标是建立对沸石的单颗粒特性如何与体行为相关的机械理解，这可以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，这项工作将大大有助于预测放大过程中粉末流动的技术风险和潜在问题，通过测量来估计粉末流动所需的建模时间最小化，设备的成功设计和调整沸石的性质，以及了解每个过程对沸石质量的影响。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，将最终为在每个过程的粉末流动特性之间建立联系铺平道路。

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.