Evaluation of Efficient CCUS System Design from Chemical Industry Emission in Indonesia

Carbon dioxide (CO₂) emissions from industry significantly contribute to increasing CO₂ in the atmosphere as the main cause of the Green House Gas (GHG) effect and climate change. CO₂ emissions cause the need for evaluation in finding emission reduction systems. The CCUS (Carbon Capture Utilization and Storage) system is one of the most studied emission reduction systems. This study aims to obtain an intuitive and quantitative CCUS network design framework using GAMS (General Algebraic Modeling System) software with a mathematical approach. Several sources of CO₂ emissions and potential absorbers are scattered in several regions in Indonesia. A mathematical approach was developed to optimize the amount of CO2 stored and utilized by varying the minimum time difference (dt min) between source and sink from 0, 3, 5, 8, to 10 years. The economic potential of the source-sink pair decreases with the change in dt with an average of 6.50 x 10⁶ USD. Based on the potential economic value, the CCUS system with industrial CO₂ emission sources has a positive value that can be applied in Indonesia.