Carbon Dioxide Gas Reduction Using the Absorption Method as an Effort to Support Carbon Capture and Storage (CCS) Technology
2025
Cahyonugroho, O. H. | Putra, I. S. | Hidayah, E. N. | Novembrianto, R.
Significant changes in global temperature occurred when carbon dioxide gas produced increases from industrial combustion processes that still use fossil fuels. These fuels contribute to environmental damage that will result in greenhouse gas emissions. One form of effort made by using Carbon Capture and Storage (CCS) technology is effectively able to reduce global warming. The reduction process is carried out using NaOH and KOH solutions by comparing the effectiveness of the captured gas. This study was conducted to determine the effect of solution and gas flow rates between NaOH and KOH absorbents on the removal of dissolved CO2 gas. The chosen methods were the sampling method and the alkalimetric method. The method was used to determine the variation of the absorbent flow rate of 2, 4, and 6 L.min-1. While the gas flow rate used is 10, 20, and 30 L.min-1. The results showed that the effective flow rate variation was obtained at a speed of 2 L.min-1 with a gas flow rate of 30 L.min-1. The concentration that is removed in the absorbent is 52% of CO2 gas absorbed in NaOH solution with an electric voltage of 0.817 Volt, while KOH is obtained by 48% with an electric voltage of 0.798 Volt. The analysis results will be used as electrochemical-based electrical energy. It can be concluded that the effective absorbent solution is NaOH which can reduce CO2 gas optimally, which has a correlation to the flow rate of the solution and gas and can produce electrochemical-based electrical energy
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