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CO2 solubility enhancement in nanofluids by AL2O3 nanoparticles.

Number: pap. n. TP-048

Author(s) : LEE J. W., KANG Y. T.

Summary

Recently, many studies have been focused on the reduction of CO2 emissions, which is a main greenhouse gas. But, the temperature of absorbent during the physical absorption process should be maintained at a low temperature (about -40°C) to increase the CO2 gas absorption rate according to the Henry's solubility law. Therefore, huge amount of energy is required to keep such a low temperature of the absorbent in the CO2removal systems. In this study, Al2O3 nanoparticles are combined into NaCl aqueous solution to enhance the CO2 mass transfer of the base fluid (NaCl aqueous solution). The absorption experiments are carried out in a bubble type absorber system. The nanoparticle concentration ranges from 0.005 to 0.1 vol%. It is found that the CO2 solubility is enhanced by up to 12.5% at 0.01 vol% of Al2O3/NaCl aqueous solution nanofluids. The nanofluid proposed in the present study is expected to be a promising candidate for the phase out of CO2 gas.

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Pages: 7 p.

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Details

  • Original title: CO2 solubility enhancement in nanofluids by AL2O3 nanoparticles.
  • Record ID : 30008271
  • Languages: English
  • Source: 4th IIR Conference on Thermophysical Properties and Transfer Processes of Refrigerants
  • Publication date: 2013/06/17

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