摘要
针对气相法聚乙烯装置生产中的缺乏质量指标在线测量、大时间滞后和频繁的牌号切换等特性,基于质量指标推断模型,提出一种基于质量指标推断模型的多牌号质量指标在线控制方法。所提方法已成功应用于中石化某气相聚乙烯装置,长周期的运行结果证实了所提方法可以有效地减少产品质量波动,减轻了操作人员的工作强度,取得了显著的经济效益。
Due to the characteristics of the lack of on-line measurement,large time delay and frequent grade transition in industrial gas-phase polyethylene plant,a method of multi-grade quality on-line control based on the resin quality estimation model was proposed.The proposed method is successfully applied to a gas-phase polyethylene plant in petrochemical.Long-period operating results confirm that the proposed method can effectively reduce the fluctuations in product quality,reduce the intensity of the operation staff and achieved significant economic benefits.
出处
《化工自动化及仪表》
CAS
北大核心
2010年第12期5-10,共6页
Control and Instruments in Chemical Industry
基金
国家自然科学基金资助项目(60774080
60974065)
国家"863"计划项目(2009AA04Z135)
关键词
聚乙烯
质量指标推断模型
在线估计
反馈修正
质量指标控制
polyethylene
resin quality estimation model
on-line estimation
feedback calibration
quality control
