Cover of International Journal of Greenhouse Gas ControlAuthors: Jia-Lin KANG¹, Kai SUN², David Shan-Hill WONG¹, Shi-Shang JANG¹, Chung-Sung TAN¹

Affiliations: ¹Department of Chemical Engineering, National Tsing Hua University, Hsinchu 30013, Taiwan, ROC and ²Department of Automation, Qilu University of Technology, Shandong 250353, PR China

Reference: Kang, J.L., Sun, K., … Tan, C.S., 2014. Modeling studies on absorption of CO2 by monoethanolamine in rotating packed bed. International Journal of Greenhouse Gas Control 25, 141–150.

Abstract: “This study presented a model of the absorption of carbon dioxide by mono-ethanolamine solution in a rotating packed bed absorber using two-film theory for mass-transfer. It was found that temperature bulge can also be found in rotating packed bed if large amount of carbon dioxide was removed. Proper accounting of changes in liquid holdup is critical to accurate prediction of changes in capture efficiencies with gas and liquid flow rate. Moreover, use of a modified expression for the apparent kinetic constant in the enhancement factor is necessary to predict experiment results using high amine concentrations. Since the model have been comprehensively validated using data provided by various authors in the literature with various gas–liquid flow rates, rotator speeds, and solvent conditions, it could be used as a tool for scale up studies.”

DOI: 10.1016/j.ijggc.2014.04.011

Comments: the authors developed in gPROMS a comprehensive model, based on two-film theory, for the absorption of carbon dioxide in a Rotating Packed Bed by MEA. Physical properties of gas and liquid phases such as densities, viscosities, surface tensions were obtained from Aspen Properties through the CAPE-OPEN Thermodynamic socket available in gPROMS.