A Comparative Study Between Pinch Design Method and Superstructure Applied on Carbon Capture and Storage

Abstract

Carbon Capture and Storage (CCS) has become trend topic among the researcher in Indonesia due to its urgency in reducing carbon emissions. Planning of CCS optimization is important in order to achieve maximum captured CO₂. This study compares Pinch Analysis and Superstructure Modelling for CCS planning across multi-region sources and sinks in Indonesia. Focusing on three key parameters: alternative storage, captured CO₂, and unutilized storage, both approaches will be evaluated. Grid diagram will be applied to both approach (Pinch Analysis and Superstructure Modelling) to show the reliability of the calculation results. For Pinch Analysis, cascade calculations will determine optimal parameters under temporal constraints while Superstructure Modelling will employ mixed-integer linear programming (MILP) to model multi-period CCS networks. Results indicate that Pinch Analysis achieved a 7 % higher captured CO₂ compared to Superstructure Modelling, with a total of 8 pairings for Pinch Analysis and 5 pairings for Superstructure Modelling. These findings inform the comparison of hybrid frameworks between thermodynamic visualization (Pinch Analysis) and multi-objective optimization (Superstructure Modelling) to address Indonesia’s cross-regional CCS challenges.