Detailed population balance modelling of TiO 2 synthesis in an industrial reactor
This paper uses a network of ideal flow reactors and a detailed population balance model to study the evolution of the size and shape distributions of pigmentary titanium dioxide, formed under industrial synthesis conditions. The industrial reactor has multiple reactant injections, a tubular working...
| Main Authors: | , , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2018
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| Online Access: | https://hdl.handle.net/10356/88025 http://hdl.handle.net/10220/44498 |
| _version_ | 1826127554795274240 |
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| author | Boje, Astrid Akroyd, Jethro Sutcliffe, Stephen Edwards, John Kraft, Markus |
| author2 | School of Chemical and Biomedical Engineering |
| author_facet | School of Chemical and Biomedical Engineering Boje, Astrid Akroyd, Jethro Sutcliffe, Stephen Edwards, John Kraft, Markus |
| author_sort | Boje, Astrid |
| collection | NTU |
| description | This paper uses a network of ideal flow reactors and a detailed population balance model to study the evolution of the size and shape distributions of pigmentary titanium dioxide, formed under industrial synthesis conditions. The industrial reactor has multiple reactant injections, a tubular working zone in which the exothermic reaction is completed, and a cooling zone. A network of continuously stirred tank reactors is used to model variation in composition around the feeds and plug flow reactors with prescribed temperature gradients are used to describe the working and cooling zones. The quality of the industrial product depends on its morphology, and this is influenced by factors including temperature and throughput. In this paper, a multivariate particle model is accommodated using a stochastic method and the particle morphology is characterised in terms of the distributions of primary and aggregate particle diameters, number of primary particles per particle and neck radii of connected primary particles. Increasing temperature or residence time is shown to produce larger particles. Qualitative similarities are highlighted between such findings and previous studies. The throughput studies are also in qualitative agreement with empirical industrial experience. There is scope for extending and improving the current model; however, it is suggested that insights of this type could be used to inform the design and operation of the industrial process. |
| first_indexed | 2024-10-01T07:10:29Z |
| format | Journal Article |
| id | ntu-10356/88025 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T07:10:29Z |
| publishDate | 2018 |
| record_format | dspace |
| spelling | ntu-10356/880252023-12-29T06:51:44Z Detailed population balance modelling of TiO 2 synthesis in an industrial reactor Boje, Astrid Akroyd, Jethro Sutcliffe, Stephen Edwards, John Kraft, Markus School of Chemical and Biomedical Engineering Titanium Dioxide Ideal Reactor This paper uses a network of ideal flow reactors and a detailed population balance model to study the evolution of the size and shape distributions of pigmentary titanium dioxide, formed under industrial synthesis conditions. The industrial reactor has multiple reactant injections, a tubular working zone in which the exothermic reaction is completed, and a cooling zone. A network of continuously stirred tank reactors is used to model variation in composition around the feeds and plug flow reactors with prescribed temperature gradients are used to describe the working and cooling zones. The quality of the industrial product depends on its morphology, and this is influenced by factors including temperature and throughput. In this paper, a multivariate particle model is accommodated using a stochastic method and the particle morphology is characterised in terms of the distributions of primary and aggregate particle diameters, number of primary particles per particle and neck radii of connected primary particles. Increasing temperature or residence time is shown to produce larger particles. Qualitative similarities are highlighted between such findings and previous studies. The throughput studies are also in qualitative agreement with empirical industrial experience. There is scope for extending and improving the current model; however, it is suggested that insights of this type could be used to inform the design and operation of the industrial process. Accepted version 2018-03-05T05:44:57Z 2019-12-06T16:54:22Z 2018-03-05T05:44:57Z 2019-12-06T16:54:22Z 2017 Journal Article Boje, A., Akroyd, J., Sutcliffe, S., Edwards, J., & Kraft, M. (2017). Detailed population balance modelling of TiO 2 synthesis in an industrial reactor. Chemical Engineering Science, 164, 219-231. 0009-2509 https://hdl.handle.net/10356/88025 http://hdl.handle.net/10220/44498 10.1016/j.ces.2017.02.019 en Chemical Engineering Science © 2017 Elsevier Ltd. This is the author created version of a work that has been peer reviewed and accepted for publication by Chemical Engineering Science, Elsevier Ltd. It incorporates referee’s comments but changes resulting from the publishing process, such as copyediting, structural formatting, may not be reflected in this document. The published version is available at: [http://dx.doi.org/10.1016/j.ces.2017.02.019]. 41 p. application/pdf |
| spellingShingle | Titanium Dioxide Ideal Reactor Boje, Astrid Akroyd, Jethro Sutcliffe, Stephen Edwards, John Kraft, Markus Detailed population balance modelling of TiO 2 synthesis in an industrial reactor |
| title | Detailed population balance modelling of TiO 2 synthesis in an industrial reactor |
| title_full | Detailed population balance modelling of TiO 2 synthesis in an industrial reactor |
| title_fullStr | Detailed population balance modelling of TiO 2 synthesis in an industrial reactor |
| title_full_unstemmed | Detailed population balance modelling of TiO 2 synthesis in an industrial reactor |
| title_short | Detailed population balance modelling of TiO 2 synthesis in an industrial reactor |
| title_sort | detailed population balance modelling of tio 2 synthesis in an industrial reactor |
| topic | Titanium Dioxide Ideal Reactor |
| url | https://hdl.handle.net/10356/88025 http://hdl.handle.net/10220/44498 |
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