Simulation of CO2 Absorption and Desorption in Packed Columns
- 10.2991/aer.k.201221.004How to use a DOI?
- Packed column, simulation, gas absorption-desorption, Aspen HYSYS, carbon dioxide - water system
This paper presents a research work on the simulation of a simultaneous gas absorption-desorption in the packed columns using computer software to obtain the maximum amount of absorbed carbon dioxide (CO2) into the water, the optimum L/G ratio for absorption, the optimum airflow rate for desorption, and make-up water for desorption. Simulations were carried out using the Aspen HYSYS program, with Sour SRK (Soave-Redlich-Kwong) ‘fluid package’. A Solteq gas absorption-desorption column unit (column diameter of 80 mm, glass raschig ring packing with an effective height of 1,500 mm) were used for the analysis, with an operating pressure of 1 bar, absorption temperature of 25°C, water flow rate (L) of 1.5 L/min, L/G 10-150 (kg/kg), and desorption temperature of 40°C. The model successfully predicts CO2 absorption with water, including a maximum solvent capacity of 1.176 g CO2/kg H2O at an optimum L/G ratio of 50. For the simultaneous absorption-desorption process, the airflow rate needed of 0.0016 LPM but required quite a big amount of make-up water, which is 24% of the freshwater flow rate. From those results, it was concluded that CO2 absorption and desorption in packed columns utilizing water as physical absorbent is feasible.
- © 2020, the Authors. Published by Atlantis Press.
- Open Access
- This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).
Cite this article
TY - CONF AU - Bambang Soeswanto AU - Ninik Lintang Edi Wahyuni AU - Dhyna Analyes Trirahayu PY - 2020 DA - 2020/12/22 TI - Simulation of CO₂ Absorption and Desorption in Packed Columns BT - Proceedings of the International Seminar of Science and Applied Technology (ISSAT 2020) PB - Atlantis Press SP - 18 EP - 22 SN - 2352-5401 UR - https://doi.org/10.2991/aer.k.201221.004 DO - 10.2991/aer.k.201221.004 ID - Soeswanto2020 ER -