CO2 Absorption from Its Mixture with CH4 or N2 through Hollow Fiber Membrane Contactor using Water as Solvent

• Main Authors: Sutrasno Kartohardjono, Anggara Anggara, Subihi Subihi, Yuliusman Yuliusman
• Format: Article
• Language: English
• Published: Universitas Indonesia 2010-10-01
• Series: Makara Journal of Technology
• Subjects: hollow fiber, contactor, mass transfer
• Online Access: http://journal.ui.ac.id/technology/journal/article/view/134

<p>Hollow fiber membrane contactors have been widely used as gas-liquid contactors recently such as in the CO2&nbsp;absorption process from gas stream. This research aims to evaluate the effectiveness of hollow fiber membrane&nbsp;contactor to absorb CO2 from its mixture with CH4 or N2 using water through mass transfer and hydrodynamic tests.&nbsp;There are 3 membrane modules used in this research with shell diameter of 1.9 cm, length of 40 cm, outer fiber&nbsp;diameter of 2.7 mm and fiber number in the contactors of 10, 15 and 20. Liquid flow rates in the hollow fiber membrane&nbsp;contactors are varied in this research. Research results show that mass transfer coefficients in the membrane contactor&nbsp;increase with increasing liquid flow rate and decrease with increasing fiber number in the contactor. Flux of CO2 into&nbsp;water can achieve 1.4x10-9 mol CO2 /m2.s and mass transfer coefficients can achieve 1.23 x 10-7 m/s. Meanwhile,&nbsp;hydrodynamic test results show that water pressure drop in the membrane contactors increase with increasing fiber<br>number in the contactors.</p>