On‐line molecular weight distribution estimation and control in batch polymerization
On‐line molecular weight distribution estimation and control in batch polymerization
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DOI：
10.1002/aic.690400308
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发表时间：
1994-03
期刊：
影响因子：
3.7
通讯作者：
M. F. Ellis;T. W. Taylor;K. Jensen
中科院分区：
文献类型：
--
作者：
M. F. Ellis;T. W. Taylor;K. Jensen
实验实现了间歇式甲基丙烯酸甲酯溶液聚合分子量分布（MWD）的在线控制和估计。该估计器是基于一个扩展的Kafman过滤器，并提供当前估计的整个MWD，反应温度，单体转化率，和引发剂转化率。它使用了一个详细的聚合模型，onfine单体转化率测量，温度测量，并定期，时间延迟测量的MWD从一个上精细的尺寸排阻色谱。该估计器表现良好，几个上罚款MWD估计实验。利用分子量分布的非精细信息，实现了分子量的实时反馈控制
A molecular weight distribution (MWD) estimator for batch methyl methacrylate solution polymerization is implemented experimentally for on-fine control and estimation of the MWD. The estimator is based on an extended Kafman filter and provides current estimates of the entire MWD, reaction temperature, monomer conversion, and initiator conversion. It uses a detailed polymerisation model, onfine monomer conversion measurements, temperature measurements, and periodic, time-delayed measurements of the MWD from an on-fine size-exclusion chromatograph. The estimator is shown to perform well with several on-fine MWD estimation experiments. Real-time feedback control of the molecular weight is presented by utilizing the on-fine MWD information