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

Thamer, Elaf; Rushdi, Salih Abduljabbar

doi:10.30772/qjes.v13i1.650

	An Experimental Investigation of Overall Mass Transfer coefficient (KGa) of CO2 absorption using Monoethanolamine (MEA) and Diethanolamine (DEA) in a Bubble Column Reactor (BCR)
Al-Qadisiyah Journal for Engineering Sciences
Volume 13, Issue 1, March 2020, Pages 68-73 PDF (1.13 M)
DOI: 10.30772/qjes.v13i1.650
Authors
Elaf Thamer; Salih Abduljabbar Rushdi
Chemical Engineering Department -College of Engineering – University of Al-Qadisiyah-Iraq
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 ( K_G) was 0.04 S^-1 .
Keywords
CO2 Absorption; Monoethanolamine (MEA); Diethanolamine (DEA); Overall mass transfer coefficient (K_Ga); Bubble column reactor (BCR); Gas Chromatography(GC)

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