Environment & Safety Gas Processing/LNG Maintenance & Reliability Petrochemicals Process Control Process Optimization Project Management Refining

Shin, J.

LG Chem., Daejeon, Korea

Enhance operation and reliability of dividing-wall columns

LG Chem, Ltd.: Lee, J. W.
Yeungnam University: Lee, M.
LG Chem.: Shin, J.
LG Chem Ltd.: Lee, S.
AMT Pacific Co. Ltd.: Lee, B.

Dividing wall columns (DWCs) are an attractive option when the goals are to reduce energy consumption and capital investment for distillation processes. A major component in a DWC system is the reflux..

Manage risks with dividing-wall column installations

Yeungnam University: Lee, M.
LG Chem.: Shin, J.
LG Chem Ltd.: Lee, S.  |  Lee, J.

A simple auxiliary configuration and an extensive modeling study can mitigate the implementation risks of DWCs

Implement a constrained optimal control in a conventional level controller - Part 2

LG Chem, Ltd.: Lee, J. W.
GS-Caltex Corp.: Lee, Y.
LG Chem.: Shin, J.

Novel tuning method enables a conventional PI controller to explicitly handle the three important operational constraints of a liquid level loop in an optimal manner as well as copes with a broad range of level control from tight to averaging control

Implement a constrained optimal control in a conventional level controller - Part 1

LG Chem, Ltd.: Lee, J. W.
Yeungnam University: Lee, M.
LG Chem.: Shin, J.

Novel tuning method enables a conventional PI controller to explicitly handle the three important operational constraints of a liquid level loop in an optimal manner as well as copes with a broad range of level control from tight to averaging control

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