线性低密度聚乙烯气相聚合工艺模拟与优化

Simulation and Optimization of Gas Phase Polymerization Process for LLDPE

由于流化床反应器内流体行为和聚合反应的复杂性,该工艺的设计和生产计划是一项艰巨的任务。文章利用Aspen Custom Modeler建立了线性低密度聚乙烯生产用流化床聚合反应器的模型,预测了聚合物的特性和流动行为。然后将所开发的模型集成到主工艺流程模拟中,以优化聚合物生产过程中的能耗。在保持相同聚合物特性的同时,降低了总能量需求。

Due to the fluid behavior and polymerization complexity in f luidized bed reactors,the design and production planning of this process was a daunting task.In this paper,the model of fluidized bed polymerization reactor for LLDPE production was established by Aspen Custom Modeler,and the properties and flow behavior of the polymer were predicted.The developed model was integrated into the main process flow simulation to optimize energy consumption during polymer production.The total energy requirement was reduced while maintaining the same polymer properties.