Performansi Purifikasi Biogas Dengan KOH Based Absorbent

Abstract

The absorpstion of CO₂ is aimed to increase the methane gas fraction in biogas. Enhancing methane fraction hopefully will increase the total energy of the biogas it self. The purification process of biogas minimizing another elements maintains combustion, especially minimizing H₂O, CO₂, and H₂S. The purification using KOH as the absorbent to decrease the CO₂. The result shown that the content of CO₂ decreased into 27% from 35.5%, the average content of CH₄ increased from 18% to 48.5%. Increasing KOH composition decreases bubble generator diameter and mass flow.