Decomposition Techniques for the Real-time Optimization of a Propylene Production Unit

被引：0

作者：

Acevedo, A. M. P. ^{[1
]}

Graciano, J. E. A. ^{[1
]}

Liporace, Fabio D. S. ^{[2
]}

Vianna, A. S., Jr. ^{[1
]}

Le Roux, Galo A. C. ^{[1
]}

机构：

[1] Univ Sao Paulo, Dept Chem Engn, Sao Paulo, SP, Brazil

[2] CENPES PETROBRAS SA, Rio De Janeiro, RJ, Brazil

来源：

12TH INTERNATIONAL SYMPOSIUM ON PROCESS SYSTEMS ENGINEERING (PSE) AND 25TH EUROPEAN SYMPOSIUM ON COMPUTER AIDED PROCESS ENGINEERING (ESCAPE), PT A | 2015年 / 37卷

关键词：

real-time optimization; process optimization; decomposition techniques; ONLINE OPTIMIZATION;

D O I：

暂无

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

In this work an application of decomposition techniques on a propylene production unit from REPLAN refinery by Petrobras S.A. is presented. It is shown that the classic Lagrangian Relaxation (LR) technique and the alternative technique called "Pricing Interprocess Streams Using Slack Auctions" (PISUSA) do not converge for the case study presented. The issues involved in each decomposition approach are identified and discussed; then a modification of the Lagrangean Relaxation algorithm is proposed using a new constraint-updating rule. This modified algorithm is able to overcome the issues and solve the decomposed problem properly.

引用

页码：893 / 898

页数：6

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