Abstract
Population balance and computational fluid dynamics models are built and integrated to carry out a simulation study of the reactive crystallisation process in a confined jet mixer (CJM) for the continuous flow synthesis of TiO2 nanoparticles at a supercritical water condition. In the population balance model, the crystal growth in size is modelled as being due to combined nanocrystal aggregation as well as surface growth. A free molecular model is used to predict the particle aggregation. The performance of the combined aggregation and surface growth models is compared with models that only consider surface growth as the only mechanism for particle size enlargement. It was found that the combined model gives a more accurate prediction of particle size distribution.
Highlights
Confined Jet Mixer for HydrothermalContinuous hydrothermal flow synthesis (CHFS) of nanoparticles below 100 nm in size has shown numerous advantages [1,2,3,4,5]
The mixing and heat transfer are clearly critical inside the CHFS reactor, i.e., the impinging jet mixer, and these factors have received a great deal of attention from researchers, who have applied computational fluid dynamics (CFD) simulation in their studies on the CHFS process
Accurate CFD simulation should take into consideration the reactive crystallisation process by incorporating population balance models (PBM)
Summary
Continuous hydrothermal flow synthesis (CHFS) of nanoparticles below 100 nm in size has shown numerous advantages [1,2,3,4,5]. It is considered as a green technology as it uses water as a reagent rather than organic solvents. The mixing and heat transfer are clearly critical inside the CHFS reactor, i.e., the impinging jet mixer, and these factors have received a great deal of attention from researchers, who have applied computational fluid dynamics (CFD) simulation in their studies on the CHFS process. Chen et al [8]
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
