Dynamic Multi-Phase, Multi-Zone Modeling of Flash Separators for Highly Viscous Polymerization Processes

Prokopis Pladis; Apostolos Baltsas; Vasileios Kanellopoulos; Costas Kiparissides

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Dynamic Multi-Phase, Multi-Zone Modeling of Flash Separators for Highly Viscous Polymerization Processes

机译：高粘度聚合过程闪蒸分离器的动态多相，多区域建模

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SummaryA multi-phase, multi-zone mathematical model is developed to describe the dynamic operation of an industrial high-pressure flash separator for a ternary (Ethylene–Vinyl acetate–EVA) system. The proposed description of the high-pressure separator can take into account the complex gas carry-under and liquid droplets carry-over phenomena occurring during the non-equilibrium operation of the separator. Numerical simulations have been carried out to determine the effect of operating conditions on the dynamic operation and separation efficiency of a HPS unit operating in series with an industrial scale high-pressure EVA autoclave. The proposed model is capable of simulating the dynamic operation of an industrial-scale HPS over a wide range of operating conditions and EVA copolymer grades.

机译：总结建立了一个多相，多区域的数学模型，以描述用于三元（乙烯-乙酸乙烯酯-EVA）系统的工业高压闪蒸分离器的动态运行。所提出的高压分离器的描述可以考虑在分离器的非平衡操作期间发生的复杂的气体残留和液滴残留现象。已经进行了数值模拟以确定操作条件对与工业规模的高压EVA高压釜串联操作的HPS单元的动态操作和分离效率的影响。所提出的模型能够模拟工业规模HPS在各种运行条件和EVA共聚物等级下的动态运行。

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来源
《Macromolecular reaction engineering》 |2014年第4期|1-14|共14页
作者
Prokopis Pladis; Apostolos Baltsas; Vasileios Kanellopoulos; Costas Kiparissides;
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作者单位

Chemical Process Energy Resources Institute Centre for Research and Technology Hellas Greece;

Chemical Process Energy Resources Institute Centre for Research and Technology Hellas Greece;

Borealis Polymers Oy Porvoo Finland;

Chemical Process Energy Resources Institute Centre for Research and Technology Hellas Greece;

Department of Chemical Engineering Aristotle University of Thessaloniki Greece;

Department of Chemical Engineering The Petroleum Institute Abu Dhabi UAE;

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原文格式 PDF
正文语种 eng
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关键词
ethylene vinyl acetate; high pressure production technology; high pressure separators; LDPE; polyolefin;

机译：乙烯乙酸乙烯酯高压生产技术高压分离器LDPE聚烯烃;

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Dynamic Multi-Phase, Multi-Zone Modeling of Flash Separators for Highly Viscous Polymerization Processes

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