Comparison of NaOH and Na2CO3 as absorbents for CO2 absorption in carbon capture and storage technology

Fadhilah Ikhsan Dinul; Hendri Nurdin; Dieter Rahmadiawan; Nasruddin; Imtiaz Ali Laghari; Tarig Elshaarani

doi:10.58712/jerel.v2i1.23

Authors

Fadhilah Ikhsan Dinul Department of Mechanical Engineering, Faculty of Engineering, Universitas Negeri Padang, INDONESIA
Hendri Nurdin Department of Mechanical Engineering, Faculty of Engineering, Universitas Negeri Padang, INDONESIA
Dieter Rahmadiawan Department of Mechanical Engineering, Faculty of Engineering, Universitas Negeri Padang, INDONESIA
Nasruddin Department of Mechanical Engineering, Faculty of Engineering, Universitas Indonesia, INDONESIA
Imtiaz Ali Laghari Department of Electrical Engineering, Quaid-e-Awam University of Engineering, Science and Technology, PAKISTAN
Tarig Elshaarani Sudan Atomic Energy Commission, Institute of Chemistry & Nuclear Physics, SUDAN

DOI:

https://doi.org/10.58712/jerel.v2i1.23

Keywords:

CO2, NaOH, NaCO3, Absorption, Absorbent

Abstract

CO₂ gas is a greenhouse gas that causes global warming. Greenhouse gases are gases in the atmosphere that can absorb and reflect infrared radiation from the Earth's surface. Currently, the energy demand still depends on fossil fuels. On the other hand, CO₂ emissions from burning fossil fuels continue to increase and contribute as greenhouse gases to the atmosphere. CO₂ capture is an effort to reduce the burden of CO₂ emissions into the atmosphere and is part of the Carbon, Capture, and Storage (CCS) protocol. The CO₂ absorption process applied in the chemical industry is one of the CO₂ absorptions using NaOH and Na₂CO₃ solutions as absorbents. This research aims to determine the effect of absorbent flow rate on the percentage of absorbed CO₂. The method used in this research is the SLR (Systematic Literature Review) method to identify all available research. The absorbent flow rate variations used are 1 liter/minute, 1.5 liters/minute, 2 liters/minute, 2.5 liters/minute, and 3 liters/minute. The absorption process using NaOH absorbent is capable of absorbing CO₂gas with a maximum absorption of 95.52% and a minimum of 79.14%. Meanwhile, in the Na₂CO₃ absorbent, it is capable of absorbing CO₂ gas with a maximum amount absorbed of 72.45% and a minimum of 35.47%.

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