| dc.description.abstract | Coal-fired Steam Power Plants (PLTU) have proven to have high and stable power generation capacity.
However, during their operational phase, coal-fired power plants have the risk of producing various
types of pollutant emissions. These emissions include SO2, NO2, CO, CO2, and VHC (Volatile
Hydrocarbons). This research aims to eliminate exhaust gas emissions by using process simulations
with Aspen Plus software, examining the effects of L/G Ratio, temperature, and pressure on the
efficiency of SO2 absorption, the impact of forced oxidation and natural oxidation on gypsum purity,
the effect of CaCO3 slurry on CO2 removal, and the impact of forced oxidation and natural oxidation
on economic analysis. The study was conducted by simulating the SO2 removal process using the wet
flue gas desulphurization (WFGD) method with an RCSTR model for the wet scrubber. The research
results indicate that the optimal L/G Ratio for removing SO2 is in the range of 1.1 – 1.5 to achieve an
efficiency greater than 95%, with the process temperature in the range of 40°C - 60°C. Pressure does
not affect the absorption process, and the forced oxidation method is preferred for handling by-products
and minimizing waste.
Keywords: Absorption, SO2 gas, scrubber | en_US |
