On-Line Property Prediction for Industrial Slurry High-Density Polyethylene Processes with Various Grade Transition Modes

JOURNAL OF CHEMICAL ENGINEERING OF JAPAN

Young Kim¹  Il Kang²  Sunwon Park² 

[1]Department of Energy Plant, Korea Institute of Machinery and Materials

[2]Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST)

关键词: Grade Transition;    Property Prediction;    HDPE;   

DOI  :  10.1252/jcej.43.581

来源: Maruzen Company Ltd

【 摘 要 】

References(13)Cited-By(1)The production of high-density polyethylene involves frequent grade transitions due to increased diversity among the products demanded by consumers. In this study, staged property models are developed to predict the changes in polymer properties during continuous, discontinuous, and semi-continuous grade transitions. At the outset, the operation states of the reactors are divided into three stages according to their distinct dynamics. Polymer property models are subsequently formulated for each stage based on empirical models. Model parameters are updated on a real-time basis according to the change of the partial properties of polymers in the reactors. The effectiveness of the proposed model is demonstrated via application to an industrial slurry high-density polyethylene process.

【 授权许可】

Unknown