In Energy Reviews (ER)




Journal: Energy Reviews (ER)
Author: Z.M. Ibrahim, K.S.N. Kamarudin

This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited


In industry, the removal of carbon dioxide is very important because of the optimization of the capital and the operation cost of a process, to meet the specification of the gas and for environmental purpose. The absorption technique to capture carbon dioxide is widely used in gas separation in industry. The most common technique that usually used is absorption using alkanolamines. Recent technology regarding separation of gas by using emulsion has been studied which using amine as extractant and organic solvent. However, during the absorption process, the unknown value of diffusivity coefficient causes the amount of carbon dioxide diffuse pass through the emulsion layer cannot be estimated. The viscosity and time of absorption needs to be considered in this study. In this study, the materials used were methylethanolamine (MEA) as a stripping agent, 2-amino-2- methyl-1-propanol (AMP) as activator and sodium hydroxide (NaOH) solution as an aqueous phase together with an organic phase consist of kerosene and Span-80. The concentration of MEA/AMP and Span-80 were varied to determine the viscosity and the diffusivity coefficient of the CO2 in emulsion during absorption. Diffusion coefficient was calculated based on the equation by using Wilke-Chang theory. Rotating disc contactor (RDC) was used and the amount of CO2 was measured by using gas chromatography (GC). This study showed that, using 8 mL MEA and 4mL AMP, the diffusivity coefficient and amount of CO2 absorbed were 14.23 x 10-8 and 963.31 mmol of CO2 respectively.

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Pages 12-15
Year 2018
Issue 2
Volume 2
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