R1233zd(E)在[HMIM][PF6]中的溶解度和扩散系数的实验测量和理论计算

doi:10.11949/0438-1157.20190544

摘要/Abstract

摘要：

R1233zd(E)具有无毒、环保、不可燃等优点，而离子液体具有较宽的液体温度范围和良好的物理化学性质。R1233zd(E)和离子液体相结合可以成为一种优良的吸收式制冷工质对。测量了R1233zd(E)在[HMIM][PF₆]离子液体中的溶解度和扩散系数，温度测量范围为303.2~343.2 K，压力测量范围为23~140 kPa。为了方便工业化应用，采用NRTL方程和Arrhenius方程对实验结果进行了关联，计算结果和实验数据之间的平均偏差和最大偏差分别为2.45%和6.13%。

关键词: 扩散系数, 溶解度, 离子液体, 压力衰减法

Abstract:

R1233zd (E) has the advantages of non-toxic, environmentally friendly, non-flammable, and the ionic liquid has a wide liquid temperature range and good physicochemical properties. The combination of R1233zd(E) and ionic liquids can be an excellent pair of absorption refrigeration. In this paper, the solubility and diffusion coefficient of R1233zd (E) in [HMIM][PF₆] ionic liquid were measured. The temperature measurement range was 303.2—343.2 K, and the pressure measurement range was 23—140 kPa. In order to facilitate industrial application, the experimental results were correlated by NRTL equation and Arrhenius equation. The average deviation and maximum deviation between the calculated results and experimental data were 2.45% and 6.13%, respectively.

Key words: diffusion coefficient, solubility, ionic liquid, pressure decay method

中图分类号:

TQ 021.2

刘向阳,何茂刚. R1233zd(E)在[HMIM][PF₆]中的溶解度和扩散系数的实验测量和理论计算[J]. 化工学报, 2019, 70(S2): 44-49.

Manh Quang NGUYEN. Experimental measurement and theoretical calculation of solubility and diffusion coefficient of R1233zd(E) in [HMIM][PF₆][J]. CIESC Journal, 2019, 70(S2): 44-49.

图/表 7

图1 实验系统

Fig.1 Schematic diagram of experimental system

表1 R1233zd(E)在离子液体[HMIM][PF6]中溶解度的实验结果

Table 1 Experimental results of solubility of R1233zd(E) in ionic liquid [HMIM][PF6]

T/K	p/ kPa	x	T/K	p/kPa	x
303.2	23.02	0.016	323.2	81.92	0.05
303.2	37.44	0.03	323.2	108.3	0.069
303.2	50.26	0.043	333.2	36.48	0.01
303.2	63.34	0.057	333.2	55.82	0.021
303.2	81.58	0.079	333.2	74.18	0.033
313.2	27.21	0.014	333.2	94.31	0.045
313.2	41.67	0.027	333.2	123.8	0.063
313.2	57.32	0.04	343.2	40.93	0.008
313.2	72.47	0.054	343.2	64.48	0.018
313.2	93.88	0.074	343.2	85.33	0.029
323.2	31.37	0.013	343.2	106.4	0.04
323.2	47.93	0.025	343.2	142.3	0.057
323.2	65.24	0.037

图2 R1233zd(E)在离子液体[HMIM][PF6]中的溶解度

Fig.2 Solubility of R1233zd(E) in ionic liquid [HMIM][PF6]

表2 R1233zd(E)在离子液体[HMIM][PF6]中的扩散系数和亨利常数实验结果

Table 2 Experimental results of diffusion coefficient and Henry’s constant of R1233zd(E) in ionic liquid [HMIM][PF6]

T/K	H/MPa	D×10¹⁰/(m²·s^-1)
303.2	1.4604	0.9724
313.2	1.9248	1.4506
323.2	2.3614	2.0671
333.2	3.486	3.1289
343.2	4.8601	4.4513

图3 R1233zd(E)在离子液体[HMIM][PF6]中亨利常数和扩散系数

Fig.3 Henry’s constant and diffusion coefficient of R1233zd(E) in ionic liquid [HMIM][PF6]

表3 NRTL方程的拟合参数和误差

Table 3 Fitting parameters and errors of NRTL equation

α	$τ 120$	$τ 121$	$τ 210$	$τ 211$	AARD/%	MD/%
0.013	-0.60982	869.04	626.12	3066.11	2.45	6.13

表3 NRTL方程的拟合参数和误差

Table 3 Fitting parameters and errors of NRTL equation

α	$τ 120$	$τ 121$	$τ 210$	$τ 211$	AARD/%	MD/%
0.013	-0.60982	869.04	626.12	3066.11	2.45	6.13

表4 Arrhenius 方程的拟合参数和误差

Table 4 Fitting parameters and errors of Arrhenius equation

A	-B	AARD/%	MD/%
612117.9	-33758.8	1.91	4.12

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R1233zd(E)在[HMIM][PF₆]中的溶解度和扩散系数的实验测量和理论计算

Experimental measurement and theoretical calculation of solubility and diffusion coefficient of R1233zd(E) in [HMIM][PF₆]

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