TY - GEN
T1 - Sensitivity Analysis on Absorber Column as Hydrogen Gas Purification Unit Using Aspen Plus
AU - Sutikno, Juwari Purwo
AU - Hamid, Mahar Diana
AU - Tamimi, Fa’izul Qholbi
AU - Roostewen, Kelben
AU - Anugraha, Rendra Panca
AU - Handogo, Renanto
N1 - Publisher Copyright:
© The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2024.
PY - 2024
Y1 - 2024
N2 - The absorption process involves transferring molecules from the gas phase to the liquid phase. In this study, an absorption column was utilised to separate acid gas from the byproduct of hydrogen gas using NaOH solvent. However, an issue related to fluctuating pH in the bottom product was encountered, which affected the quality of absorption in the column. One of the objectives of this study was to determine the effects of NaOH mass fraction in the solvent on the pH and the amount of acid gas absorbed in the column's bottom product. The process was simulated using ASPEN PLUS, and the sensitivity analysis indicated that changes in pressure and solvent mass flow rate directly affect absorption quality. In contrast, changes in solvent temperature have an inverse effect on absorption quality. Additionally, the mass fraction of NaOH in the solvent is directly proportionate to the absorption quality and pH value of the bottom product, showing high sensitivity to the pH value. When adjusting the NaOH fraction in the solvent within the range of 2–5%, the pH of the bottom product fluctuates from pH 0.9 to 12.2. The study illustrated the effects of variables on process operation parameters.
AB - The absorption process involves transferring molecules from the gas phase to the liquid phase. In this study, an absorption column was utilised to separate acid gas from the byproduct of hydrogen gas using NaOH solvent. However, an issue related to fluctuating pH in the bottom product was encountered, which affected the quality of absorption in the column. One of the objectives of this study was to determine the effects of NaOH mass fraction in the solvent on the pH and the amount of acid gas absorbed in the column's bottom product. The process was simulated using ASPEN PLUS, and the sensitivity analysis indicated that changes in pressure and solvent mass flow rate directly affect absorption quality. In contrast, changes in solvent temperature have an inverse effect on absorption quality. Additionally, the mass fraction of NaOH in the solvent is directly proportionate to the absorption quality and pH value of the bottom product, showing high sensitivity to the pH value. When adjusting the NaOH fraction in the solvent within the range of 2–5%, the pH of the bottom product fluctuates from pH 0.9 to 12.2. The study illustrated the effects of variables on process operation parameters.
KW - ASPEN PLUS
KW - Acid gas absorber
KW - Gas purification
KW - Sensitivity analysis
UR - http://www.scopus.com/inward/record.url?scp=85204397594&partnerID=8YFLogxK
U2 - 10.1007/978-981-97-2977-7_3
DO - 10.1007/978-981-97-2977-7_3
M3 - Conference contribution
AN - SCOPUS:85204397594
SN - 9789819729760
T3 - Lecture Notes in Electrical Engineering
SP - 33
EP - 45
BT - Proceedings of the 4th International Conference on Advances in Computational Science and Engineering - ICACSE 2023
A2 - Thiruchelvam, Vinesh
A2 - Alfred, Rayner
A2 - Ismail, Zamhar Iswandono Bin Awang
A2 - Haviluddin, Haviluddin
A2 - Baharum, Aslina
PB - Springer Science and Business Media Deutschland GmbH
T2 - 4th International Conference on Advances in Computational Science and Engineering, ICACSE 2023
Y2 - 16 December 2023 through 17 December 2023
ER -