Perpustakaan Digital ITB

Carbon emissions and global warming have raised concerns for humanity in recent decades, leading to development of carbon reduction technologies. One carbon reduction technology is the carbon capture process, namely post-combustion capture via chemical absorption with potassium hydroxide (KOH) and integrated mineral carbonation. There is potential in this process as it utilizes waste from coal fired power plants in the form of fly ash to store CO2 in a secure solid form while feasible at atmospheric conditions. A lab-scale experiment is conducted to evaluate the mineral carbonation process and its feasibility. Simulation is also conducted for a more applicative aspect of the integrated CCUS plant. In this research, carbon capture plants utilizing monoethanolamine (MEA) as a base model and KOH are modelled and compared based on energy requirements and techno-economic aspects. The experiments conducted found the possibility of calcium hydroxide (Ca(OH)2) as a mineral source through dry carbonation assisted by plasma catalysis. The research found that the mineral carbonation integrated plant using KOH has an energy penalty of 1.45%, only requiring 0.0007 kWh/gmol CO2 to operate. In comparison, research found that the MEA plant has an energy penalty of 35.5% requiring 0.0175 kWh/gmol CO2 to operate. The estimated cost of the mineral carbonation integrated plant is $19.46 USD, indicating it to also be viable economically with very little energy penalty.