Condensed Mode Cooling in Ethylene Polymerisation: Droplet Evaporation

被引:25
作者
Alizadeh, Arash [1 ,2 ,3 ]
McKenna, Timothy F. L. [1 ]
机构
[1] Univ Lyon, ESCPE Lyon, CNRS, C2P2 LCPP Grp,UMR 5265, F-69616 Villeurbanne, France
[2] Dutch Polymer Inst, NL-5600 AX Eindhoven, Netherlands
[3] Queens Univ, Dept Chem Engn, Kingston, ON K7L 3N6, Canada
关键词
condensed mode cooling; fluidised bed reactor; polyethylene; HEAT REMOVAL;
D O I
10.1002/masy.201300092
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
A simplified model is used to explore the mechanisms for droplet vaporisation in fluidised bed reactors used for the production of polyethylene in the gas phase. Both homogeneous and heterogeneous vaporisation models are considered. It is shown that for a reasonable range of droplet sizes (less than 1 mm in diameter), droplet vaporisation will be essentially complete at bed heights on the order of 1 m.
引用
收藏
页码:242 / 247
页数:6
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