TY - JOUR AU - Selvi, Pongayi Ponnusamy AU - Baskar, Rajoo PY - 2023/01/20 Y2 - 2024/03/28 TI - CO2 MITIGATION STUDIES IN PACKED ABSORPTION COLUMN USING IRON OXIDE NANOFLUID: Scientific paper JF - Chemical Industry & Chemical Engineering Quarterly JA - Chem. Ind. Chem. Eng. Q. VL - 29 IS - 2 SE - Articles DO - 10.2298/CICEQ210510023S UR - https://www.ache-pub.org.rs/index.php/CICEQ/article/view/1048 SP - 161-167 AB - <p><em>The challenging task in our ecosystem is to reduce acidic gas emissions to some extent. Many gases are emitted from the industries like H<sub>2</sub>S, CO, CO<sub>2</sub>, SO<sub>2</sub>, NO, and NO<sub>2</sub> as exhaust gases. Among these gases, CO<sub>2</sub>, NO<sub>2</sub>, and SO<sub>2</sub> are acidic, which results in adverse effects on humans, animals, and plants. The increase in the emission of CO<sub>2</sub> gases from both anthropogenic and industrial sources resulted in CO<sub>2</sub> mitigation studies. CO<sub>2</sub> absorption studies were carried out using iron oxide nanofluid with the novel structured packed absorption column. Iron oxide nanoparticles were synthesized and characterized using XRD, SEM, and TEM analysis. Ammonia is used as an absorbent along with iron oxide nanofluid of three different concentrations (0.0001 w/v%, 0.001 w/v%, and 0.0015 w/v%). It was found that the iron oxide nanofluid of 0.0015 w/v% showed an improved % CO<sub>2</sub> removal efficiency. This enhanced % CO<sub>2</sub> removal efficiency was due to the increased interfacial area of the ameliorated contact between the liquid and gas phases. In addition, the magnetic field was introduced along with the packed column, which increased CO<sub>2</sub> removal efficiency by 1.5%.</em></p> ER -