CO₂ Desorption by Hydrophilic PTFE Hollow Fiber Membranes via a Membrane Flash Process

Abstract:

In this study, hydrophilic PTFE hollow fiber membranes were prepared and applied for CO₂ desorption via a membrane flash process, which is a new CO₂ desorption process by utilizing waste thermal energy. The methyldiethanolamine was selected as the absorbent. Effects of the flashing temperature, flashing pressure, rich solution flow rate and MDEA concentration on CO₂ release ratio and CO₂ desorption flux were deeply investigated. The results show that flashing temperature is positive to the CO₂ release ratio and CO₂ desorption flux. However, the flashing pressure, rich solution flow rate and MDEA concentration are negative to the CO₂ release ratio and CO₂ desorption flux.

• Periodical: Key Engineering Materials (Volume 671)
• Pages: 293-299
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.671.293
• Online since: November 2015
• Authors: Peng Peng Lv, Feng Wang, Yu Hai Guo, Hong Yan Tang*
• Keywords: CO₂ Desorption Flux, CO₂ Release Ratio, Hydrophilic PTFE Hollow Fiber Membranes, Membrane Flash Process, Methyldiethanolamine

References

[1] Metz, B., et al., Carbon Dioxide Capture and Storage: Summary for policymakers and technical summary. IPCC-Special Report, ISBN, 2005: pp.92-9169.

[2] Aaron, D., et al., Separation of CO2 from flue gas: a review. Separation Science and Technology, 2005. 40(1-3): pp.321-348.

DOI: 10.1081/ss-200042244

[3] Abu-Zahra, M.R. M, et al., CO2 capture from power plants: Part II. A parametric study of the economical performance based on mono-ethanolamine. International Journal of Greenhouse Gas Control, 2007. 1(2): pp.135-142.

DOI: 10.1016/s1750-5836(07)00032-1

[4] Vevelstad, S.J., et al, Degradation of MEA; a theoretical study. Energy Procedia, 2011. 4: pp.1608-1615.

[5] Li, J.L., et al., Review of CO2 absorption using chemical solvents in hollow fiber membrane contactors. Separation and Purification Technology, 2005. 41(2): pp.109-122.

DOI: 10.1016/j.seppur.2004.09.008

[6] Yan, S., et al., Regeneration of CO2 from CO2-rich alkanolamines solution by using reduced thickness and vacuum technology: regeneration feasibility and characteristic of thin-layer solvent. Chemical Engineering and Processing: Process Intensification, 2009. 48(1): pp.515-523.

DOI: 10.1016/j.cep.2008.06.009

[7] Versteeg, G.F., et al., On the kinetics between CO2 and alkanolamines both in aqueous and non-aqueous solutions-I. Primary and secondary amines. Chemical Engineering Science, 1988. 43(3): pp.573-585.

DOI: 10.1016/0009-2509(88)87017-9

[8] Teramoto, M., et al., Separation and concentration of CO2 by capillary-type facilitated transport membrane module with permeation of carrier solution. Journal of Membrane Science, 2004. 234(1): pp.83-94.

DOI: 10.1016/j.memsci.2003.12.023

[9] Aboudheir, A., et al., Kinetics of the reactive absorption of carbon dioxide in high CO2-loaded, concentrated aqueous monoethanolamine solutions. Chemical Engineering Science, 2003. 58(23): pp.5195-5210.

DOI: 10.1016/j.ces.2003.08.014

[10] Abu-Zahra, M.R. M, et al., CO2 capture from power plants: Part I. A parametric study of the technical performance based on monoethanolamine. International Journal of Greenhouse Gas Control, 2007. 1(1): pp.37-46.

DOI: 10.1016/s1750-5836(06)00007-7