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姜錫浩,宋希準,安熙官 嶺南大學校 工業技術硏究所 1978 연구보고 Vol.6 No.1
In order to study the flow characteristics of spherical glass-beads ranging from 40 mesh to-115 mesh, its angle of repose and angle of rupture were measured as a function of average particle size, addition of fine powder as glidant or lubricant, and admixture of 2 or 3 adjacent fractions of beads classified by screening. The angle of repose of the glass-beads increases with increasing particle size of above 100 mesh, but for beads smaller than 100 mesh, the angle of repose increases with decreasing particle size. Fine glidant of montmorcalite added to the beads in very small concentrations of 0.6wt, % decreases the flow angles, while it tends to increase strongly the flow angles at higher concentrations.
안희관 啓明大學校 産業技術硏究所 1980 産業技術硏究所 論文報告集 Vol.2 No.-
The aqueous Fuchsine dye-solution was adsorbed in the fixed bed adsorber packed with the granular active carbon in the low Reynolds number flow range. From the effluent concentration-time curve, effective rate of the adsorption in the fixed bed was determined and found to be largely controlled by the external transport model. Applying the transport phenomena theory, external mass transfer coefficient k???p, mass transfer coefficient of the axial dispersion caused by the mixing effect in the bed ??? and mass transfer coefficient of the solid or pore diffusion ??? were quantitatively determined. Finally, correlations between the individual transfer coefficients and the varying Reynolds numbers show straight lines, respectively, on the logarithmic coordinates.
할로겐화 탄화수소의 흡착제거기술 Ⅱ. Pressure Swing Adsorption 공정에 의한 할로겐화 탄화수소/공기 혼합물의 분리
이태진,안희관,김윤갑,강석호 嶺南大學校 環境問題硏究所 1990 環境硏究 Vol.10 No.1
An experimental study was performed for the bulk separation of halogenated hydrocarbons and air mixture(CF₂Cl₂/air, CH₂Cl₂/air=0.1/99.9 Vol.%) in a pressure swing adsorption (PSA) process packed with various adsorbents, The PSA process cycle comprised four stes : I pressurizaton, II adsorption, III countercurrent depressurrzation, IV purge. The order of appearance of break-through curve is MS-5A > MS-13X > W-AC > S-AC for CF₂Cl₂/Air and W-AC > S-AC > MS-13X for CH₂Cl₂/Air respectively. The separation effects for the variation of adsorption pressure were investigated. In a steady state PSA cycles, high purity air from step II and CFCs-rich gas from step IV were obtained.