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5. 結論
本次研究以氯氣為研究對象,針對特氣元件更換過程中
的實際條件,計算出所需控制的環境濕度,並成功在實際更換
過程中驗證此手法精進的可行性。此更換手法除了能減少HCl
的形成,降低特氣元件被腐蝕及形成二次汙染的情形,同時也
減少操作人員接觸腐蝕性氣體的風險。
參考文獻
[01] S. M. Fine, et al., The role of moisture in the corrosion of HBr gas
distribution system, J. Electrochem. Soc, 1995.
[02] P. L. T. Brian, et al., The effect of temperature on the rate of absorption
of chlorine into water, Chem. Eng. Sci., 1966.
圖6、現場溼度計讀值
[03] G. L. Squadrito, et al., Elucidating mechanisms of chlorine toxicity
reaction kinetics, thermodynamics, and physiological implications,
Am. J. Physiol. Lung Cell Mol. Physiol., 2010.
4.2 設備機台檢測
[04] C. W. Spalding, Reaction kinetics in the absorption of chlorine into
aqueous media, AIChE J, 1962.
本次研究搭配設備機台(AMET-B)PM停機更換,在更換完
[05] M. Gershezon, et al., Rate constant for the reaction of Cl2(aq) with
成後針對顆粒(particle, PA)、蝕刻速率(Etch rate, E/R)及蝕刻均 OH-, J. Phys. Chem. A, 2002.
[06] Danckwerts, P. V. Gas-Liquid Reactions, Chemical Engineering Series;
勻度Etch rate uniformity, E/R uniformity進行monitor,確認更
McGraw-Hill; New York, 1970.
換前後品質相符(圖7),也驗證此PM精進手法的實際應用性。
作者介紹
陳建佑 Chien-Yu Chen
國立台灣大學環工所畢業。
No pain, no gain.
圖7ⓐ、PA count
圖7ⓑ、E/R & E/R uniformity
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