An Experimental Investigation of Overall Mass Transfer coefficient (KGa) of CO2 absorption using Monoethanolamine (MEA) and Diethanolamine (DEA) in a Bubble Column Reactor (BCR)

Abstract

In this work, an absorption technology was used actually to investigation the mass transfer coefficient of carbon dioxide from a gaseous mixture (air, carbon dioxide) in blended solution Monoethanolamine (MEA) and Diethanolamine (DEA) in a bubble column reactor (BCR) . The bubble column reactor(BCR) was made of Plexiglas with 1.5 m high and 0.1 m inside diameter.
 The overall mass transfer coefficient ( was evaluated at different operating conditions , gas flow rate, air Flow rate ,liquid flow rate .Where the gas flow rates were 10, 15 and 20 L /min , air flow rate 100,150 and 200 L/h ,and liquid flow rate 5 ,10,15 L /min . This experiment by using continuous process with helping centrifugal pump . High-performance gas chromatographic (GC) was performed to evaluate loading during absorption experiment . The experimental results have shown that the loading in range of 0.581-1.367 (mol /mole amine),and the maximum value of overall mass transfer coefficient ( KG) was 0.04 S-1 .

An Experimental Study of Mass Transfer coefficient of CO2 absorption using Different Amines in a Packed Column

“…Mixed amine concentration was 5V/v% MEA+5 V/v% DEA +10V/v% TEA. We used the Taguchi approach as an experimental design to reduce the multitude of experiments [15], [16]. This study utilized three levels for the variables.…”

Investigation of overall mass transfer coefficient of CO2 absorption in packed Column

“…equation below may be resulted for the coefficient of the mass transfer in the gas phase: Carbon dioxide mass transfer into the liquid phase with a chemical reaction based on the film theory[11] …”