• International Journal of Technology (IJTech)
  • Vol 8, No 8 (2017)

Effects of Absorbent Flow Rate on CO2 Absorption through a Super Hydrophobic Hollow Fiber Membrane Contactor

Sutrasno Kartohardjono, Angeline Paramitha, Aulia Andika Putri, Ryan Andriant

Corresponding email: sutrasno@che.ui.ac.id

Published at : 27 Dec 2017
Volume : IJtech Vol 8, No 8 (2017)
DOI : https://doi.org/10.14716/ijtech.v8i8.679

Cite this article as:
Kartohardjono, S., Paramitha, A., Putri, A.A., Andriant, R., 2017. Effects of Absorbent Flow Rate on Co2 Absorption through a Super Hydrophobic Hollow Fiber Membrane Contactor. International Journal of Technology. Volume 8(8), pp. 1429-1435

Sutrasno Kartohardjono - Chemical Engineering Department Universitas Indonesia
Angeline Paramitha Process Intensification Laboratory, Department of Chemical Engineering, Faculty of Engineering, Universitas Indonesia, Kampus Baru UI, Depok 16424, Indonesia
Aulia Andika Putri - Chemical Engineering Department Universitas Indonesia
Ryan Andriant Chemical Engineering Department Universitas Indonesia
Email to Corresponding Author


The aim of this study is to evaluate the effects of absorbent flow rate on CO2 absorption through a super hydrophobic hollow fiber contactor. The absorbent used in this study was a physical absorbent, namely a polyethyleneglycol-300 (PEG-300) solution. Meanwhile, the feed gases used in the experiments were pure CO2 and a mixture of 30% CO2 and 70% CH4. Gas absorption using a physical absorbent provides various benefits; for example, it can produce sufficiently high selectivity towards CO2 and it is less corrosive than chemical solvents. Three super hydrophobic hollow fiber contactors, each 6 cm in diameter and 25 cm in lengthconsist of 1000, 3000 and 5000 fibers, respectively, were used in this study. The type ofsuper hydrophobic fiber membrane used was polypropylene-based, with an outer and inner diameter of about 525 and 235 µm, respectively. During the experiments, the absorbent was flowed through the lumen fibers, whilst the feed gas flowed through the shell side of the membrane contactors. The experimental results showed that the mass transfer coefficient, the flux, and the absorption efficiency increased, but the CO2 loading decreased, with increasing absorbent flow rate in the membrane contactor. Meanwhile, it was found that an increase in the number of fibers in the membrane contactor, in general, will increase the absorption efficiency and the CO2 loading, but will decrease the overall mass transfer coefficient and the flux.

Absorption efficiency; Flux; Mass transfer coefficient; Physical absorbent; Polyethyleneglycol-300.


The membrane-based gas-liquid contactor is a suitable alternative technology for CO2 absorption from natural gas. Hydrophobicity is one of important properties of the membrane that prevents it being wetted by the absorbent solution. The super hydrophobic hollow fiber membrane contactors were utilized in this study to absorb CO2 using 5 vol.% PEG as an absorbent. The experimental results showed that the mass transfer coefficient, flux and absorption efficiency increased, but CO2 loading decreased, with increasing absorbent flow rate. The numbers of fibers in the contactor had different effects on mass transfer coefficient, flux and absorption efficiency. In general, the mass transfer coefficient and flux, at the same absorbent flow rate, decreased with increasing numbers of fibers in the membrane contactor. Meanwhile, the absorption efficiency and CO2 loading, at the same absorbent flow rate, increased with increasing numbers of fiber in the membrane contactor.


A part of this study was funded by the Directorate General of Higher Education Republic of Indonesia through Universitas Indonesia with contract No. 1178/UN2.R12/HKP.05.00/2016.

Supplementary Material
R2-CE-679-20171110163456.jpg Acid Loading
R2-CE-679-20171110163512.jpg Flux
R2-CE-679-20171110163536.jpg Mass transfer coefficient

Anda, L., Adiwar, 2011. The Effect of Molecular Weight of Polyethylene Glycol (PEG) on Acetate Cellulod Membranes on Separation Selectivity of CO2/CH4 Gases (Efek Berat Molekul Polietilen Glikol (PEG) pada Membran Seluloda Asetat terhadap Selektifitas Pemisahan Gas CO2/CH4. Lembaran Publikasi Minyak dan Gas Bumi, Volume 45(2), pp. 121?124 (in Bahasa)

Dave, A., Dave, M., Huang, Y., Rezvani, S., Hewitt, N., 2016. Process Design for CO2 Absorption from Syngas using Physical Solvent DMEPEG. International Journal of Greenhouse Gas Control,Volume49, pp.  436?448

Dindore, V.Y., Brilman, D., Willem, F., Geuzebroek, F.H., Versteeg, G.F., 2004. Membrane–solvent Selection for CO2 Removal using Membrane Gas–liquid Contactors. Separation and Purification Technology,Volume40(2),  pp.133?145

Dindore, V.Y., Brilman, D., Willem, F., Versteeg, G.F., 2005. Hollow Fiber Membrane Contactor as a Sas–liquid Model Contactor. Chemical Engineering Science,Volume60(2), pp. 467?479

Dindore, V.Y., Brilman, D.W.F., Feron, P.H.M., Versteeg, G.F., 2004. CO2 Absorption at Elevated Pressures using a Hollow Fiber Membrane Contactor. Journal of Membrane Science, Volume235(1), pp. 99?109

Faiz, R., Al-Marzouqi, M.,2010. CO2 Removal from Natural Gas at High Pressure using Membrane Contactors: Model Validation and Membrane Parametric Studies. Journal of Membrane Science,Volume365(1), pp. 232?241

Franco, J., Demontigny, D., Kentish, S., Perera, J., Stevens, G.,2008. A Study of the Mass Transfer of CO2 through Different Membrane Materials in the Membrane Gas Absorption Process. Separation Science and Technology, Volume43(2), pp. 225?244

Freeman, B., Hao, P., Baker, R., Kniep, J., Chen, E., Ding, J., Rochelle, G.T., 2014. Hybrid Membrane-absorption CO2Capture Process. Energy Procedia, Volume63, pp. 605?613 

Kartohardjono, S., Darmawan, R., Karyadi, M.F., Saksono, N.,2016. CO2 Absorption through Super-hydrophobic Hollow Fiber Membrane Contactors. Journal of Environmental Science and Technology,Volume 9(2), pp. 214?219

Kartohardjono, S., Sembiring, K.A., Rexy, S.R., Ghasani, F., Saksono, N.,2017. CO2Absorption from Its Mixture through Super-hydrophobic Membrane Contactor. Journal of Environmental Science and Technology, Volume10(1), pp.  25?34

Kim, Y.-S., Yang, S.-M.,2000. Absorption of Carbon Dioxide through Hollow Fiber Membranes using Various Aqueous Absorbents. Separation and Purification Technology,Volume21(1), pp. 101?109

Rajabzadeh, S., Yoshimoto, S., Teramoto, M., Al-Marzouqi, M., Matsuyama, H.,2009. CO2Absorption by using PVDF Hollow Fiber Membrane Contactors with Various Membrane Structures. Separation and Purification Technology,Volume69(2), pp. 210?220 

Scholes, C.A., Simioni, M., Qader, A., Stevens, G.W., Kentish, S.E.,2012. Membrane Gas–solvent Contactor Trials of CO2Absorption from Syngas. Chemical Engineering Journal, Volume195, pp. 188?197 

Tontiwachwuthikul, P., Chakma, A.,2006. Using Polypropylene and Polytetrafluoroethylene Membranes in a Membrane Contactor for CO2 Absorption. Journal of Membrane Science, Volume277(1), pp. 99?107 

Wang, D., Teo, W.K., Li, K.,2004. Selective Removal of Trace H2Sfrom Gas Streams Containing CO2 using Hollow Fibre Membrane Modules/Contractors. Separation and Purification Technology,Volume35(2), pp. 125?131 

Wang, R., Zhang, H.Y., Feron, P.H.M., Liang, D.T.,2005. Influence of Membrane Wetting on CO2 Capture in Microporous Hollow Fiber Membrane Contactors. Separation and Purification Technology,Volume46(1), pp. 33?40 

Yan, S.-P., Fang, M.-X., Zhang, W.-F., Wang, S.-Y., Xu, Z.-K., Luo, Z.-Y., Cen, K.-F.,2007. Experimental Study on the Separation of CO2from Flue Gas using Hollow Fiber Membrane Contactors without Wetting. Fuel Processing Technology, Volume88(5), pp. 501?511 

Yeon, S.-H., Lee, K.-S., Sea, B., Park, Y.-I., Lee, K.-H.,2005. Application of Pilot-scale Membrane Contactor Hybrid System for Removal of Carbon Dioxide from Flue Gas. Journal of Membrane Science, Volume257(1), pp. 156?160