[1]杨文超,李舒宏,冯义康,等.N2在液态CO2中的溶解度分析[J].东南大学学报(自然科学版),2016,46(4):776-781.[doi:10.3969/j.issn.1001-0505.2016.04.017]
　Yang Wenchao,Li Shuhong,Feng Yikang,et al.Analysis of solubility on N2 in liquid CO2[J].Journal of Southeast University (Natural Science Edition),2016,46(4):776-781.[doi:10.3969/j.issn.1001-0505.2016.04.017]
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N2在液态CO2中的溶解度分析()
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
46
期数:
2016年第4期
页码:
776-781
栏目:
能源与动力工程
出版日期:
2016-07-20

文章信息/Info

Title:
Analysis of solubility on N2 in liquid CO2
作者:
杨文超1; 李舒宏1; 冯义康2; 单贵苏1; 张小松1
1东南大学能源与环境学院, 南京210096; 2青岛海信日立空调系统有限公司, 青岛266510
Author(s):
Yang Wenchao1;  Li Shuhong1;  Feng Yikang2;  Shan Guisu1;  Zhang Xiaosong1
1School of Energy and Environment, Southeast University, Nanjing 210096, China
2Qingdao Hisense Hitachi Air-conditioning System Co. Ltd., Qingdao 266510, China
关键词:
低温碳捕集;  溶解度;  二元交互作用系数;  参数优化
Keywords:
cryogenic carbon capture;  solubility;  binary interaction parameters;  parameter optimization
分类号:
TK01
DOI:
10.3969/j.issn.1001-0505.2016.04.017
摘要:
采用Henry常数法及PR,SRK状态方程法计算了N2在液态CO2中的溶解度.将溶解度计算结果与实验数据进行比较后得出:PR状态方程的计算精度最高,计算结果与实验数据的平均相对误差绝对值均小于9%;Henry常数法计算结果误差最大,计算结果与实验数据的平均相对误差绝对值均大于26%; N2的溶解度随温度降低或压力增大而逐渐增大.为进一步提高PR方程的计算精度,利用实验数据优化了N2与CO2之间的二元交互作用系数,并提出二元交互作用系数与温度、压力有关的关联式;将关联式运用于温度为220,240及250 K的N2溶解度计算中,计算结果与实验数据的相对误差绝对值均小于2%,当温度为220 K时,溶解度计算结果与实验数据的相对误差绝对值均小于0.7%,证明了所得关联式的准确性.
Abstract:
The solubility of N2 in liquid CO2 is calculated by using the Henry constant, PR(Peng-Robinson)and SRK(Soave-Redlich-Kwong)equation methods. The comparison results between calculation results with experimental data show that PR equation has the highest precision,and the average absolute values of relative deviation of calculation results and experimental data are less than 9%. The deviation of calculation results by using the Henry constant method is the largest, the average absolute values of the relative deviation of calculation results and the experimental data are more than 26%. With the decrease of the temperature and the increase of pressure, the solubility of N2 in liquid CO2 increases. In order to further improve the accuracy of the PR equation, the binary interaction parameters between N2 and CO2 are optimized using experimental data. In addition, a correlation between the binary interaction parameters with the temperature and pressure is proposed. Applying the correlation to the solubility calculations of N2 at 220, 240 and 250 K, the absolute values of the relative deviation of calculation results and the experimental data are less than 2%, and those are less than 0.7% at 220 K, proving the accuracy of the correlation.

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备注/Memo

备注/Memo:
收稿日期: 2015-12-13.
作者简介: 杨文超(1990—),男,硕士生;李舒宏(联系人),男,博士,教授,博士生导师,equart@seu.edu.cn.
基金项目: 江苏省“六大人才高峰”资助项目(2013-JNHB-014).
引用本文: 杨文超,李舒宏,冯义康,等.N2在液态CO2中的溶解度分析[J].东南大学学报(自然科学版),2016,46(4):776-781. DOI:10.3969/j.issn.1001-0505.2016.04.017.
更新日期/Last Update: 2016-07-20