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Experimental Studies on CO₂ Absorption in Immersed Hollow Fiber Membrane Contactor


Medium: conference paper
Language(s): English
Conference: 2012 International Conference on Civil, Architectural and Hydraulic Engineering (ICCAHE 2012), August 10-12th 2012, Zhangjiajie (China)
Published in:
Page(s): 1571-1575
DOI: 10.4028/www.scientific.net/AMM.209-211.1571

Carbon dioxide (CO₂) absorption performance from flue gas was investigated using monoethanolamine (MEA) solution in porous hydrophobic polyvinylidene fluoride (PVDF) hollow fiber membranes contactor. The influence of operating parameters on CO₂ removal efficiency and flux were studied in the immersion operating mode. The experimental results indicated that the CO₂ removal efficiency and flux decreased with the increase of flue gas load and carbonization degrees, but the increase of the absorbent concentration and temperature promoted membrane performance of CO₂ capture. An increase of 84 m³•m-2•h-1in the flue gas load resulted in a 68% decrease in the removal efficiency. Absorbent carbonation degree increased to 0.45 mol CO₂•mol-1MEA led to the decrease of active ingredient amounts in the absorption solution, and the corresponding removal efficiency and membrane flux dropped by 50% of the initial amounts, respectively. The increase of concentration and temperature of absorbent also benefited membrane absorption performance of CO₂ absorption, so that the concentration and temperature of the solvent increased lead to the CO₂ removal efficiency and flux increased.

Structurae cannot make the full text of this publication available at this time. The full text can be accessed through the publisher via the DOI: 10.4028/www.scientific.net/AMM.209-211.1571.
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