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Preparation of Spherical Granules of Dolomite Kiln Dust as Gas Adsorbent
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 Title & Authors
Preparation of Spherical Granules of Dolomite Kiln Dust as Gas Adsorbent
Choi, Young-Hoon; Huh, Jae-Hoon; Lee, Shin-Haeng; Han, Choon; Ahn, Ji-Whan;
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 Abstract
It is highlighted that increasing the adsorbent surface area on volumetric basis is very important in providing an easy access for gas molecules. Fine particles around of soft-burned dolomite kiln dust (SB-DKD) were hydrated to wet slurry samples by ball mill process and then placed in a chamber to use spray dryer method. Spherical granules with particle size distribution of were prepared under the experimental condition with or without addition of a pore-forming agent. The relationship between bead size of the pore-forming agent and size of SB-DKD particles is the most significant factor in preparation of spherical granules with a high porosity. Whereas addition of smaller beads than SB-DKD resulted in almost no change in the surface porosity of spherical granules, addition of larger beads than SB-DKD contributed to obtaining of the particles with both 15 times larger average pore volume and 1 order of magnitude larger porosity. It is considered that spherical granules with improved gas adsorption ability may also be utilized for other atmospheric gas adsorption.
 Keywords
Dolomite;Kiln dust;Granule;Porosity;Gas adsorbent;
 Language
English
 Cited by
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