[1]周诗岽,王 恒,王树立,等.MDEA脱硫液的表面张力研究[J].常州大学学报(自然科学版),2014,(03):88-92.[doi:10.3969/j.issn.2095-0411.2014.03.018]
　ZHOU Shi-dong,WANG Heng,WANG Shu-li,et al.Investigation of the Surface Tension for MDEA Desulfurization Liquid[J].Journal of Changzhou University(Natural Science Edition),2014,(03):88-92.[doi:10.3969/j.issn.2095-0411.2014.03.018]
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MDEA脱硫液的表面张力研究()
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常州大学学报(自然科学版)[ISSN:2095-0411/CN:32-1822/N]

卷:
期数:
2014年03期
页码:
88-92
栏目:
石油与天然气工程
出版日期:
2014-06-30

文章信息/Info

Title:
Investigation of the Surface Tension for MDEA Desulfurization Liquid
作者:
周诗岽1; 王 恒1; 王树立1; 张 前1; 李 辉2
1.常州大学 江苏省油气储运技术重点实验室,江苏 常州 213016; 2.苏州苏净保护气氛有限公司,江苏 苏州 215122
Author(s):
ZHOU Shi-dong1;  WANG Heng1;  WANG Shu-li1;  ZHANG Qian1; LI Hui2
1.Jiangsu Key Laboratory of Oil & Gas Storage and Transportation Technology,Changzhou University,Changzhou 213016,China; 2.Suzhou Sujing Protective Atmosphere Co. Ltd,Suzhou 215122,China
关键词:
N甲基二乙醇胺;  表面张力;  表面熵;  表面焓
Keywords:
MDEA;  surface tension;  surface entropy;  surface enthalpy
分类号:
TQ028.1
DOI:
10.3969/j.issn.2095-0411.2014.03.018
文献标志码:
A
摘要:
N甲基二乙醇胺(MDEA)水溶液的表面张力是硫化氢醇胺吸收工艺的一个重要参数。用德国KUASS K11全自动界面张力仪的铂金板法测定了288.15～348.15 K全浓度范围内的MDEA水溶液的表面张力,并用经验公式对实验数据进行了拟合,拟合曲线与实验值吻合良好。在此基础上对MDEA的热力学性质(表面熵,表面焓)进行了进一步分析,结果表明,表面熵在摩尔分数为0.016 5以下时熵变化较快,在0.016 5～0.184 7之间变化不明显,但随着摩尔分数的继续增加表面熵呈下降趋势。表面焓在摩尔分数为0.060 8以下和0.184 7～0.260 6之间变化较快,在0.060 8～0.184 7和0.260 6以上时焓变化趋于缓慢。
Abstract:
The surface tension of Nmethyldiethanolamine(MDEA)aqueous solution is an important parameter for the hydrogen sulfide absorption technology by alcohol amine aqueous solutions. The surface tensions of MDEA aqueous solution were measured by using the platinum plate method of German KUASS K11 automatic interfacial tensionmeter from 288.15 to 348.15 K. The empirical formula was used to correlate the experimental data, and the simulation values have a good agreement with the experimental ones. Based on these experiments, the thermodynamic properties of MDEA(surface entropy, surface enthalpy)were further analyzed. The results showed that the change of the surface entropy and enthalpy were related to the mole fraction. When the mole fraction was less than 0.016 5, the surface entropy changed faster; it didn't change obviously while the mole fraction was between 0.016 50.184 7, and with the increase of the mole fraction, the surface entropy tended to decline. For the surface enthalpy, it changed faster when the mole fraction was less than 0.060 8 and between 0.184 70.260 6, and the change speed tended to fall when the mole fraction was between 0.060 80.184 7 and more than 0.260 6.

参考文献/References:

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备注/Memo

备注/Memo:
基金项目::江苏省产学研联合创新资金资助项目(BY2012095); 中国石油科技创新基金项目(2012D50060604)。 作者简介:周诗岽(1978-),男,江苏东台人,副教授。Email:zsd@cczu.edu.cn
更新日期/Last Update: 2014-06-30