Isothermal Vapor–Liquid Equilibria of the Absorption Working Pairs (R1234yf + NMP, R1234yf + DMETrEG) at Temperatures from 293.15 K to 353.15 K
Isothermal Vapor–Liquid Equilibria of the Absorption Working Pairs (R1234yf + NMP, R1234yf + DMETrEG) at Temperatures from 293.15 K to 353.15 K
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DOI：
10.1021/acs.jced.7b00821
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发表时间：
2018-04
影响因子：
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通讯作者：
Yibo Fang;Wenjie Guan;Kangli Bao;Yanzhi Wang;Xiaohong Han;Guangming Chen
中科院分区：
文献类型：
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作者：
Yibo Fang;Wenjie Guan;Kangli Bao;Yanzhi Wang;Xiaohong Han;Guangming Chen
R1234yf + NMP 和 R1234yf + DMETrEG 的气液平衡（VLE）数据是在双循环实验装置中在 293.15-353.15 K 的温度范围内测量的。通过区域测试检查 VLE 数据的热力学一致性。采用非随机二液模型对VLE数据进行相关分析，结果表明二者具有良好的一致性。 R1234yf+DMETrEG的压力平均相对偏差在1.37%以内，最大为3.51%； R1234yf+NMP的压力平均相对偏差在1.43%以内，最大为3.65%。结果仍然表明，二元体系R1234yf+NMP与拉乌尔定律存在较大的正偏差，体系R1234yf+DMETrEG与理想解表现出轻微的正偏差。
The vapor–liquid equilibria (VLE) data of R1234yf + NMP and R1234yf + DMETrEG were measured at the temperature range of 293.15–353.15 K in a dual cycle experimental apparatus. The thermodynamic consistency of the VLE data was checked with an area test. The VLE data were correlated by the nonrandom two-liquid model, and the results showed that they had a good agreement. The average relative deviation of pressure for R1234yf + DMETrEG was within 1.37% and its maximum was 3.51%; the average relative deviation of pressure for R1234yf + NMP was within 1.43% and its maximum was 3.65%. The results still showed that there was a large positive deviation between the binary system R1234yf + NMP and Raoul’s law, and the system R1234yf + DMETrEG exhibited a slight positive deviation to the ideal solution.