60 The development of a special stirrer device for mixing in homogeneous continuous polymerization reactors
✍ Scribed by L.L. van Dierendonck; J.A. de Leeuw den Bouter; H.K. Ostendorf
- Publisher
- Elsevier Science
- Year
- 1980
- Tongue
- English
- Weight
- 529 KB
- Volume
- 35
- Category
- Article
- ISSN
- 0009-2509
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✦ Synopsis
The mixing rate of the specfal stirrer device warn studied on various scalem with different stirrer diameters and stirrer speeds, scaling-up procedures were developed. A digital simulation model was met up to study the effects of the stirring parameters On the mixing rate. To study polyzerization, the mixing model warn combined with a kinetic model of the pol~erization reaction. This paper describes the effect of mixing on the frequency distribution of monomers in copolymerimation products KEYWORDS Mixing, polymerization reactor, digital simulation; flowsheet sfmulation program, helical ribbon impeller, propeller stirrer. INTRCDUCTION Mixing and agitation are important chemical engineering operationm and in a continuous homogeneous polymerization system constitute a special problem. Proper mixing can prevent fouling and excessive localized reactions resulting in fo=ation of undesirable products and deactivation of the catalyst.