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A model-based methodology for simultaneous process and control for chemical processes

Abd. Hamid, Mohd. Kamaruddin and Gani, Rafiqul (2008) A model-based methodology for simultaneous process and control for chemical processes. In: Foundations of Computer-Aided Process Operations (FOCAPO) 2008, June 29 - July 2, 2008, Royal Sonesta Hotel, Cambridge, Massachusetts, USA.



This paper presents a new model-based methodology for integration of process design and control (IPDC) for chemical process. The proposed systematic model-based methodology does not have difficulties in handling complex problem formulations with larger number of variables and constraints. The methodology is organized in four sub-problems: (1) pre-analysis stage, (2) steady-state analysis stage, (3) dynamic analysis stage, and (4) evaluation stage. The objective of each stage is to define the search space and enumerate (and/ or generate) asset of promising candidates. In each subsequent stage, the search space is reduced until in the final stage only a small number of candidates need to be evaluated. Therefore, while the problem complexity increases with every subsequent stage, the dimension and size of the problem is reduced. The application of the methodology is highlighted through an ethylene glycol production process. The preliminary results show that the new methodology is able to find the optimum conversion of EO at the minimum operating cost and residence time by considering the operability aspects in a simple and systematic manner.

Item Type:Conference or Workshop Item (Paper)
Uncontrolled Keywords:Chemical process control, chemical process design, integration of design and control (IPDC), decomposition method, model-based methodology
Subjects:T Technology > TP Chemical technology
Divisions:Chemical and Natural Resources Engineering (Formerly known)
ID Code:5886
Deposited By: Prof Madya Issham Ismail
Deposited On:11 Jul 2008 01:04
Last Modified:01 Jun 2010 15:36

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