Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Wall Layer Formation in Continuously Operated Tubular Reactors for Free‐Radical Polymerizations
Polymer fouling is a major problem for the operation of continuous reactors. Therefore, it is important to understand and quantitatively describe the mechanisms leading to formation of fouling deposits. In this work, a CFD model for the radical polymerization of N‐vinylpyrrolidone is presented, where the reaction kinetics, a viscosity model, and a transport model for polymer moments are determined from independent experiments. The model is compared to experimental obtained residence time distributions in capillary reactors over a wide range of concentrations. Model predictions are in good agreement with experimental findings.
Wall Layer Formation in Continuously Operated Tubular Reactors for Free‐Radical Polymerizations
Polymer fouling is a major problem for the operation of continuous reactors. Therefore, it is important to understand and quantitatively describe the mechanisms leading to formation of fouling deposits. In this work, a CFD model for the radical polymerization of N‐vinylpyrrolidone is presented, where the reaction kinetics, a viscosity model, and a transport model for polymer moments are determined from independent experiments. The model is compared to experimental obtained residence time distributions in capillary reactors over a wide range of concentrations. Model predictions are in good agreement with experimental findings.
Wall Layer Formation in Continuously Operated Tubular Reactors for Free‐Radical Polymerizations
Welzel, Stefan (Autor:in) / Zander, Christian (Autor:in) / Nieken, Ulrich (Autor:in)
Chemie Ingenieur Technik ; 95 ; 642-650
01.05.2023
9 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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| Europäisches Patentamt | 2021