Aziz M.A.F.A., Liew P.Y., Woon K.S., Rozali N.E.M., 2025, Hydrogen-based Energy Transition for Decarbonisation of Eco-Industrial Park Using a Modified Carbon Emission Pinch Analysis (CEPA), Chemical Engineering Transactions, 120, 199-204.
Carbon Emission Pinch Analysis (CEPA) is a planning tool that addresses carbon constraints across various sectors. This research paper introduces a modified CEPA approach, integrated with the Analytic Hierarchy Process (AHP), to support the decarbonization of multi-energy systems in industrial parks through hydrogen fuel switching. The AHP framework enables prioritising energy sources based on key criteria, providing a structured method for replacing conventional fuels with hydrogen and identifying sustainable pathways for hydrogen production. The approach is demonstrated by plotting a new fuel-switched supply composite curve within the CEPA curves. In the case study, to achieve 20 % GHG reduction target, emissions are reduced to 1.897 MtCO2eq by integrating 104.13 ktoe of green hydrogen. This is achieved by displacing the grey hydrogen supply, replacing natural gas in thermal applications and reducing dependence on the national electricity grid. Overall, the modified CEPA demonstrates the potential of hydrogen fuel switching to reduce emissions significantly and offers a quantifiable tool for sustainable energy planning in industrial parks with complex energy systems.
