H_2O-NH_3-CO_2��ϵ��Һƽ��

ժҪ ��ĸ��H2O-NH3-CO2��Ԫ��ϵ��¶�323 15K��473 15K��ѹ��0 2MPa��8 0MPa��Һ��NH3Ħ��ʡ�0 3��Һƽ��UNIQUACģ�ͼ��,ģ�͵ļ��Ǻϡ��ģ�Ϳ��װ��ѭ��Լ�ˮ�⾫��ȹ��̵��豸��㡣

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Abstract�� A set of interactive energy parameters of UNIQUAC equation were obtained to calculate the H_2O-NH_3-CO_2 vapor-liquid equilibria for the conditions of temperatures from 323.15K to 473.15K,pressures from 0.2MPa to 8.0MPa,and the maximum NH_3 concentrations up to 0.3 mole fraction.The calculated results of the model were consistent very well with that of the experiments.This method can be used in simulation system of the urea process.

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Received 2004-05-15; published 2004-05-15

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κ˳��,Ѧ��.H_2O-NH_3-CO_2��ϵ��Һƽ��[J]. ��ѧ��ҵ�빤��, 2004,21(3): 193-197

WEI Shun-an, XUE Rong-shu .Calculation of H_2O-NH_3-CO_2 Vapor-Liquid Equilibria[J]. Chemcial Industry and Engineering, 2004,21(3): 193-197

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