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用离子电极测定硫化氢在醇胺溶液中平衡分压的方法
引用本文:程国香,汤渭龙,沈复.用离子电极测定硫化氢在醇胺溶液中平衡分压的方法[J].中国石油大学学报(自然科学版),1991(2).
作者姓名:程国香  汤渭龙  沈复
作者单位:石油大学联合应化工程研究所 (程国香,汤渭龙),石油大学联合应化工程研究所(沈复)
摘    要:研究了一种用于测定硫化氢在醇胺溶液中平衡分压的新方法。根据硫化氢—醇胺系统在气、液相中存在的物理及反应平衡,通过测定溶液中的氢与疏离子的活度来预测硫化氢的平衡分压,它与一般的汽体循环法和气体通过法相比,具有测定速度快而简便等优点。

关 键 词:汽液平衡  测定方法  硫化氢  醇胺法脱硫  离子电极

A NEW ELECTRODE METHOD FOR MEASURING H_2S VAPOUR PRESSURE OVER ALKANOL-AMINE SOLUTIONS
Cheng Guoxiang Tang Weilong Shen Fu University of Petroleum.A NEW ELECTRODE METHOD FOR MEASURING H_2S VAPOUR PRESSURE OVER ALKANOL-AMINE SOLUTIONS[J].Journal of China University of Petroleum,1991(2).
Authors:Cheng Guoxiang Tang Weilong Shen Fu University of Petroleum
Abstract:A new method for determining the equilibrium vapour Pressure of H2S over alkanol-amine solutions is Presented.Alkanol-amine is a chemical solvent which dissolves H2S with reactions.According to the equilibria existing between H2S in the vapour phase and the species formed in the aqueous phase,the H2S equilibrium vapour pressure is obtained by the sulfide and hydrogen ion activities in the solution which can be measured by the pH combination electrode and sulfide ion selective electrode respectively.This method is simple and time saving in comparison with the current method for del errnin-ing the solubility of H2S,such as the vapour recirculation method and the gas pass through method.
Keywords:Gas-liquid equilibrium  Determination  Hydrogen sulfide  Alkanol-amine aqueous desulfurate  Ion-electrode
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