Abstract
In polyolefin processes the melt index (MI) is the most important control variable indicating product quality. Because of the difficulty in the on-line measurement of MI, a large number of MI estimation and correlation methods have been proposed. In this work, we propose a new MI predicting model in which the reaction heat term in existing prediction models is replaced by temperature. The proposed model is compared with other prediction models as well as operating data to evaluate MI predicting performance. The present model shows least predicting errors compared to existing models.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
K. B. McAuley and J. F. MacGregor, AIChE J., 37, 825 (1991).
K.B. McAuley and J. F. MacGregor, AIChE J., 38, 1564 (1992).
M. Ohshima and M. Tanigaki, J. Process Control, 10, 135 (2000).
S. J. Oh, J. S. Lee and S.W. Park, Ind. Eng. Chem. Res., 44, 8 (2005).
M. Ogawa, M. Ohshima, K. Morinaga and F. Watanabe, J. Process Control, 9, 51 (1999).
S. Floyd, K.Y. Choi, T.W. Tayior and W.H. Ray, J. Appl. Polym. Sci., 32, 2935 (1986).
A. Rudin, “Molecular Weight Distributions,” Comprehensive Polymer Science, Chap. 18, Vol. III, G. Allen and J. C. Bevington, Eds., Pergamon Press (1989).
T. Usami, Y. Gotoh and S. Takayama, Macromolecules, 19(11), 2722 (1986).
J. J. Zacca, W. H. Ray, Chem. Eng. Sci., 48(22), 3743 (1993).
Xuelan Jin, Development of PP Melt Index Inferential Model, Proceedings of the 6th World Congress on Intelligent Control and Automation, June 21–23, 2006, Dalian, China.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Kim, T.Y., Yeo, Y.K. Development of polyethylene melt index inferential model. Korean J. Chem. Eng. 27, 1669–1674 (2010). https://doi.org/10.1007/s11814-010-0290-8
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s11814-010-0290-8