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在Ellis平衡蒸馏器中测定了101.325kPa下甲醇(1)-乙酸异戊酯(2)、碳酸二甲酯(1)-乙酸异戊酯(2)和甲醇(1)-1,2-丙二醇(2)三对二元系的汽液相平衡数据。采用统计学方法对实验数据进行了热力学一致性校验。用改进的Peng-Robinson状态方程计算汽相的逸度系数,液相活度系数用Wilson和NRTL模型计算,对实验数据进行了关联。 相似文献
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本章叙述了吸收过程的相际传质模型,伴有化学反应对气液传质的影响、气液传质系数的测试装置、工业吸收器等方面的进展。 相似文献
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硼钒酸盐和二乙撑三胺复合活化改性热钾碱脱碳溶液 总被引:1,自引:0,他引:1
采用硼钒酸盐及二乙撑三胺(DETA)复合活化方法对钾碱液进行改性,以图用无机活化剂部分替代有机胺,减少DETA加入量,从而降低氧化降解。并研究了改性后的活化钾碱液吸收二氧化碳的平衡关系及动力学关系,为工业填料吸收塔设计提供了基础数据。 相似文献
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STUDIES ON KINETICS OF DESORPTION OF CO_2 FROM HOT CARBONATED POTASH SOLUTION WITH DETA (DIETHYLENETRIAMINE) AS A CATALYST
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Under atmosphe()e press()ne, rates of deseption of CO() from unmod()ed carbonated potash solutior (27 wt%)and modified carbonated potash solution(27 wt%) containing DETA as a catalyst, have been measured in a laboratory stirred reactor. Experiments were carried out with concentrations of DETA from 0—40g/L and temperatures from 90—104℃The results, show that the desorption of CO_2 from hot carbonated solutions with and without the addition of DETA, may be considered a pseudo-first order reversible reaction, and that the desorption of CO_2 from carbonated potash solution calalysed by DEIA is in agreement with the mechanism of simultancous reactions of CO_2 with amine molecules and with hydroxyl ions in solution. Mathematical models for desorptions rate cocflicient have been cstablished, and optimum concentration of DETA is proposed. 相似文献