Bow-tie diagrams are emerging as a very useful tool to depict and maintain an up-to-date, real-time, working risk management system embedded in daily operations. They are a proven concept in the worldwide offshore industry. These diagrams provide a pictorial representation of the risk assessment process. This article introduces the bow-tie concept to the downstream and chemical process industri...

Abstract The modularization of process plants addresses the need for flexible production options in industry. In order to maintain advantages adaptability modular plants, an adaptation established engineering methods and procedures their dynamic context use is required. This paper describes development features a demonstrator, which makes it possible investigate aspects plant topology, design u...

The lack of adequate support for the development of mathematical process models confines the application of model-based techniques in the design and operation of complex chemical plants. One important issue in addressing this problem is the systematization of the process of model development (called modeling process in the following). In order to provide a basis for further investigations into ...

Design and operation of chemical plants involves a combination of synthesis, analysis and evaluation of alternatives. Suchactivitieshave traditionallybeendrivenbyeconomic factorsfirst, followedbyengineering, safety and environmental considerations. Recently, chemical companies have embraced the concept of sustainable development, entailing renewable feedmaterials and energy, non-toxic and biode...

Chemical process models are highly structured. Information on how the hierarchical components are connected helps to solve the model efficiently. Our ultimate goal is to develop structure-driven optimization methods for solving nonlinear programming problems (NLP). The structural information retrieved from the JModelica environment will play an important role in the development of our novel opt...