Chemical Engineering / Kimya Mühendisliği

Permanent URI for this collectionhttps://hdl.handle.net/11147/14

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Author: search.filters.author.Conejo, Alberto N.Department: search.filters.department.İzmir Institute of Technology. Chemical Engineering

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  • Article
    Citation - WoS: 6
    Citation - Scopus: 6
    Mathematical Modelling of the Liquid/Liquid Mass Transfer Behaviour in Gas Stirred Ladles
    (Taylor & Francis, 2022) Zhang, Han; Conejo, Alberto N.; Dutta, Abhishek; Ramírez-Argáez, Marco A.; Yan, Han
    A three-dimensional numerical model consistent with physical simulations (water/oil/thymol) has been developed to explore the mass transfer behaviour of sulphur. Euler-Lagrangian and Euler-Euler, were applied to simulate the multiphase flow; compared with experimental data, the Euler-Euler method was more accurate. The small eddy model was used for mass transfer calculations. As a new type of bottom stirring scheme, the effect of central-eccentric parallel injection on mass transfer was investigated. Moving the eccentric nozzle towards the sidewall or increasing the number of eccentric nozzles decreases the mass transfer rate at a constant total gas flow rate. The mass transfer rate increases with increasing central gas flow rate under the differential flow bottom stirring scheme. The single-nozzle central injection is still considered the most superior bottom-blowing scheme. The bubble diameter has an insignificant effect on the liquid–liquid mass transfer. The mass transfer rate of thymol is weakly accelerated with increasing bubble diameter.
  • Editorial
    Citation - WoS: 1
    Citation - Scopus: 1
    Special Issue on “process Modeling in Pyrometallurgical Engineering”
    (MDPI, 2021) Saxen, Henrik; Ramirez-Argaez, Marco A.; Conejo, Alberto N.; Dutta, Abhishek
    This Special Issue on “Process Modeling in Pyrometallurgical Engineering” consists of 39 articles, including two review papers, and covers a wide range of topics related to process development and analysis based on modeling in ironmaking, steelmaking, flash smelting, casting, rolling operations, etc. The approaches include small-scale experiments and experimental design, first-principles modeling, detailed modeling based on CFD or DEM, and statistical and machine-learning-based methods. In the following paragraphs the issue is briefly scanned, presenting the papers in the order roughly following the route from raw materials processing to rolling and heat treatment.