作者
Lorenzo Stratta, Merve B Adali, Antonello A Barresi, Gianluca Boccardo, Agnese Marcato, Raffaele Tuccinardi, Roberto Pisano
发表日期
2023/7/5
期刊
Chemical Engineering Science
卷号
275
页码范围
118726
出版商
Pergamon
简介
Spray freeze-drying is particularly suitable for the preservation of biopharmaceuticals as it involves gentle drying and can easily be integrated with continuous manufacturing strategies. This process is still an evolving application, and its potential is often being explored experimentally. However, experimental methods are expensive and time-consuming. Therefore, much effort is currently focused on the development of mathematical models to understand the basic mechanisms and hence lay the foundation for analysis and experimentation. Even though a few models were proposed in the past, all of them presented various flaws and failed in describing the process behavior. We propose a multiscale approach, which is able to reproduce the structure of a packing of spray-frozen particles and extract detailed pore-scale geometrical features, informing the final vial-scale drying and heat transfer simulation. This latter …
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