%J Materials Today: Proceedings %L scholars10757 %O cited By 2; Conference of 3rd International Conference on Green Chemical Engineering and Technology: Materials Science, GCET 2017 ; Conference Date: 7 November 2017 Through 8 November 2017; Conference Code:140102 %N 10 %R 10.1016/j.matpr.2018.07.073 %D 2018 %K Gas absorption, Absorption columns; Absorption system; Area correlation; Counter current; Effective surface area; Elevated pressure; High-pressure condition; Packed column; Structured packed column; System improvements, Carbon dioxide %X Correlation for effective surface area is one of the important input for modeling of gas absorption in countercurrent packed column. Although the correlation previously developed by other researchers was able to provide quite decent prediction of carbon dioxide (CO2) absorption system, improvement still need to be done especially for high pressure condition whereby consideration for the decrease of effective surface area due to severe vapour backmixing situation needs to be taken into account. In this work, pressure dependent correction correlation was developed by incorporating the ratio of liquid to gas densities. The correlation developed in this study was found to successfully improve the prediction trend of the CO2 concentration profile along the column. © 2018 Elsevier Ltd. %P 22085-22092 %I Elsevier Ltd %V 5 %A L.S. Tan %A A.M. Shariff %A K.K. Lau %A T. Tsuji %T Modification of effective surface area correlation for structured packed absorption column at elevated pressures