Optimization Of Antifoaming Agent Usage On Co2 Removal Unit Performance To Increase Product Co2 Purity

Amos Rante Salu

doi:10.55227/ijhet.v5i1.745

Authors

Amos Rante Salu a:1:{s:5:"en_US";s:41:"Sekolah Tinggi Teknologi Industri Bontang";}

DOI:

https://doi.org/10.55227/ijhet.v5i1.745

Keywords:

Antifoam, CO2 Purity, Foaming Control, MDEA Solvent, SCAFC

Abstract

CO2 Removal units in the chemical fertilizer industry often experience foaming in the MDEA absorption-desorption process which reduces CO2 absorption efficiency. This study aims to optimize the concentration of PDMS-based antifoaming to minimize CO2 slip and maximize product CO2 purity through SCAFC identification. The experimental method was carried out on an industrial CO2 Removal unit with a population of four main equipment (Absorber, Stripper, HPFD, LPFD) and samples of varying antifoaming concentrations of 100-200 mL per 100 L of solvent. Measurement instruments include Collapse Time (CT) tester, CO2 analyzer, and laboratory tests, analyzed with a comparative multi-location injection approach. The results show the optimal SCAFC at 150 mL with the fastest CT of 12 seconds (Stripper/Absorber), minimum CO2 slip of 0.001%, and product CO2 purity of 99.45-99.50%. The conclusion of the study recommends 150 mL injection on low-pressure-high-temperature equipment for optimal operation of the fertilizer industry.

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