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Title: Study of industrial titania synthesis using a hybrid particle-number and detailed particle model
Authors: Boje, Astrid
Akroyd, Jethro
Sutcliffe, Stephen
Kraft, Markus
Keywords: Engineering::Chemical engineering
Issue Date: 2020
Source: Boje, A., Akroyd, J., Sutcliffe, S. & Kraft, M. (2020). Study of industrial titania synthesis using a hybrid particle-number and detailed particle model. Chemical Engineering Science, 219, 115615-.
Journal: Chemical Engineering Science
Abstract: We apply a hybrid particle model to study synthesis of particulate titania under representative industrial conditions. The hybrid particle model employs a particle-number description for small particles, and resolves complicated particle morphology where required using a detailed particle model. This enables resolution of particle property distributions under fast process dynamics. Robustness is demonstrated in a network of reactors used to simulate the industrial process. The detailed particle model resolves properties of the particles that determine end-product quality and post-processing efficiency, including primary particle size and degree of aggregate cohesion. Sensitivity of these properties to process design choices is quantified, showing that higher temperature injections produce more sintered particles; more frequent injections narrow the geometric standard deviation of primary particle diameter; and chlorine dilution reduces particle size and size variance. Structures of a typical industrial particle are compared visually with simulated particles, illustrating similar aggregate features with slightly larger primary particles.
ISSN: 0009-2509
DOI: 10.1016/j.ces.2020.115615
Rights: © 2020 Elsevier Ltd. All rights reserved.
Fulltext Permission: none
Fulltext Availability: No Fulltext
Appears in Collections:SCBE Journal Articles

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