Synthesis of non-isothermal heat integrated water networks in chemical processes

Recent developments in Process Integration

“…The first insight-based PI approach was developed by Savulescu et al (2002), and an optimisation based approach by Bagajewicz et al (2002). Bogataj and Bagajewicz (2008) proposed an MINLP approach by combining WN with the HEN model by , modified for the case of mixing and splitting of streams within a HEN superstructure. Dong et al (2008) employed the modified state-space superstructure for WNs and HEN.…”

Review of optimization models for integrated process water networks and their application to biofuel processes

“…The approach is an insight-based sequential procedure where direct heat transfer is maximized, while maintaining the minimum freshwater consumption in the first stage, and then the HEN is designed in the second stage. A superstructure-based mathematical optimization model is then presented by Bogataj and Bagajewicz [19] for non-isothermal multi-contaminant WN with only water-using process units. This MINLP model considers the typical WNf model simultaneously with a modified HEN superstructure presented by Yee and Grossmann [2].…”

Synthesis of Heat-Integrated Resource Conservation Networks

“…The method has also considered a trade-off between water network and HEN, non-isothermal and generation of separate systems. Another MINLP model for HIWNs synthesis has been determined by Bogataj and Bagajewicz (2008). The established model includes the NLP formulation of water network superstructure and the MINLP formulation of heat exchange network superstructure for non-isothermal stream mixing.…”

“…The models presented by Leewongtanawit and Kim (2008) and Bogataj and Bagajewicz (2008) utilised heuristics to reduce the number of hot and cold streams in the HEN, which had reduced the size of the model. However, the limitation of these approaches is that, they might exclude the potential promising HIWNs.…”