Article (Scientific journals)
Continuous flow hydrothermal synthesis of zeolite LTA in intensified reactor. Experimental and multiphysics CFD modeling approach
Ahmad, Sher; Mustapha, L.B.; Calvo, Sébastien et al.
2023In Chemical Engineering and Processing: Process Intensification, 189
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Keywords :
Computational fluid dynamics; Crystallization; Hydrothermal synthesis; Population balance Modeling; Process intensification; Zeolites; Optimization; Particle size; Batch-wise; CFD modeling; Continuous-flow; Hydrothermal process; Modeling approach; Multi-physics; Population balance modelling; Synthesised; Zeolite LTA
Abstract :
[en] Zeolites are conventionally synthesized in batch-wise hydrothermal processes that usually take several hours or days to complete. In current research work, continuous flow process is developed on pilot scale for the hydrothermal synthesis of zeolite LTA. The pilot reactor was able to produce highly crystalline zeolite nanoparticles without any clogging, which often encounters for particle flow in tubular reactors. Steady-state zeolite production rates of 55–80 g⋅h −1 (dry basis) were achieved with a residence time below 10 min, with corresponding space time yields (STY) between ca. 700 and 1100 g⋅L −1⋅h −1. A couple CFD model with a population balance model was developed to investigate the continuous flow hydrothermal process. The average particle size obtained from the model was in good agreement with the experimental data. The model was further applied to study the effects of critical parameters, such as temperature and flow rate, to highlight potential process optimization directions. © 2023
Disciplines :
Chemical engineering
Author, co-author :
Ahmad, Sher ;  Université de Liège - ULiège > Department of Chemical Engineering > PEPs - Products, Environment, and Processes
Mustapha, L.B.;  Certech, rue Jules Bordet 45, Seneffe, 7180, Belgium
Calvo, Sébastien ;  Université de Liège - ULiège > Department of Chemical Engineering > PEPs - Products, Environment, and Processes
Collignon, F.;  Certech, rue Jules Bordet 45, Seneffe, 7180, Belgium
Fernandes, A.E.;  Certech, rue Jules Bordet 45, Seneffe, 7180, Belgium
Toye, Dominique  ;  Université de Liège - ULiège > Department of Chemical Engineering > PEPs - Products, Environment, and Processes
Language :
English
Title :
Continuous flow hydrothermal synthesis of zeolite LTA in intensified reactor. Experimental and multiphysics CFD modeling approach
Publication date :
2023
Journal title :
Chemical Engineering and Processing: Process Intensification
ISSN :
0255-2701
eISSN :
1873-3204
Publisher :
Elsevier B.V.
Volume :
189
Peer reviewed :
Peer Reviewed verified by ORBi
Funding text :
This work was supported by the European Regional Development Fund (ERDF) and Wallonia within the framework of the program “Wallonie-2020.EU” ( INTENSE4CHEM , project no. ( 699993–152208 ).
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since 14 June 2023

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