アンモニア蒸気吸収過程における物質拡散 : 第2報, 界面活性剤の添加によるマランゴニ対流の発生

抄録

This paper is concerned with the absorption enhancement in the process of ammonia vapor absorption into pure water and aqueous solutions of LiBr with 50% by mass. The Marangonian convection was generated violently with addition of n-octanol in the concentration range of 0.05-1% by mass, and high absorption enhancement was obtained in a binary system as well as in a ternary one. Furthermore, the effect of various surface active agents was studied. Straight-chain hydrocarbons with six to ten atoms were selected as surfactants. The mass input by ammonia absorption increased to almost 200% for a binary system with addition of n-heptyl alcohol (C₇H₁₅OH), and to almost 300% for a ternary one with n-hexyl alcohol (C₆H₁₃OH), compared with the case without any additives.