Proceedings of the International Seminar of Science and Applied Technology (ISSAT 2020)

Simulation of CO2 Absorption and Desorption in Packed Columns

Authors
Bambang Soeswanto, Ninik Lintang Edi Wahyuni, Dhyna Analyes Trirahayu
Corresponding Author
Dhyna Analyes Trirahayu
Available Online 22 December 2020.
DOI
10.2991/aer.k.201221.004How to use a DOI?
Keywords
Packed column, simulation, gas absorption-desorption, Aspen HYSYS, carbon dioxide - water system
Abstract

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.

Copyright
© 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/).

Download article (PDF)

Volume Title
Proceedings of the International Seminar of Science and Applied Technology (ISSAT 2020)
Series
Advances in Engineering Research
Publication Date
22 December 2020
ISBN
10.2991/aer.k.201221.004
ISSN
2352-5401
DOI
10.2991/aer.k.201221.004How to use a DOI?
Copyright
© 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  -