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Issue
Korean Journal of Chemical Engineering,
Vol.32, No.9, 1744-1748, 2015
Enhancement of CH4-water mass transfer using methyl-modified mesoporous silica nanoparticles
Lee SY, Mo KS, Choi JH, Hur NH, Kim YK, Oh BK, Lee J
Surface-modified mesoporous silica nanoparticle (MSN) with methyl groups was used to enhance the CH4-water volumetric mass transfer coefficient (kLa) and the solubility of CH4 in water. Two types of samples were tested: unmodified MSN and methyl-modified MSN. The mass transfer for each type of sample was measured every 20 s by gas chromatography. The results showed that the methyl-modified MSN, which have both hydrophobic and hydrophilic properties on the surface, exhibited higher CH4-water volumetric mass transfer coefficient and solubility in water. The dissolved concentrations of CH4 were enhanced by 10.7% and 27.8%, and the volumetric mass transfer coefficient were enhanced by 28.6% and 84.7%, respectively, by using unmodified MSN and methyl-modified MSN.
Keywords: Methane (CH4) Gas; Mass Transfer; Gas Fermentation; Mesoporous Silica Nanoparticle (MSN); Surface Modification
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