碳化氨盐水气液平衡数据的测定及其热力学模型  

Measurement of Vapor-Liquid Equilibrium Data and Thermodynamic Model for CO_2-NH_3-NaCI-H_2O System

作　　者：李希[1] 戈育芳[1] 

机构地区：[1]浙江大学化学工程系,杭州310027

出　　处：《高校化学工程学报》1999年第3期268-272,共5页Journal of Chemical Engineering of Chinese Universities

摘　　要：Carbonation of ammonium brine is the principal process in manufacture of soda. Thesystem involves more than 10 components of electfolytes and molecules. In this paper, experimentswere cAned out to measure vapor phase partial pressures of COZ and NH3. The experimental conditionscover carbonation degree of 0. 10.9, temperature of 30-70℃, and ion strength of 4.5-6 mol. （kgH2O）-1.A simplified Pitier equation was employed to calculate activity coefficients of ion and molecularcomponents, and the binary interaction parameters were regressed from the experimental data. Variationof concentration of each component during carbonation process was computed and analyzed accordingto the proposed thermodynamic model.Carbonation of ammonium brine is the principal process in manufacture of soda. Thesystem involves more than 10 components of electfolytes and molecules. In this paper, experimentswere cAned out to measure vapor phase partial pressures of COZ and NH3. The experimental conditionscover carbonation degree of 0. 1~0.9, temperature of 30-70℃, and ion strength of 4.5-6 mol. (kgH_2O)-1.A simplified Pitier equation was employed to calculate activity coefficients of ion and molecularcomponents, and the binary interaction parameters were regressed from the experimental data. Variationof concentration of each component during carbonation process was computed and analyzed accordingto the proposed thermodynamic model.

关 键 词：碳化 气液平衡 碳酸化反应 氨盐水 纯碱 

分 类 号：TQ114.161[化学工程—无机化工]