Measurement and correlation of liquid-liquid equilibrium data for 1-methylnaphthalene<italic style="font-style: italic">-n-</italic>decane-1-tetradecene-sulfolane system

DING Liqun; YUAN Xiaobing; LIU Changjian

doi:10.11949/0438-1157.20190608

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Measurement and correlation of liquid-liquid equilibrium data for 1-methylnaphthalene-n-decane-1-tetradecene-sulfolane system

Thermodynamics | 更新时间：2026-07-24

- Measurement and correlation of liquid-liquid equilibrium data for 1-methylnaphthalene-n-decane-1-tetradecene-sulfolane system
- CIESC Journal Vol. 70, Issue 10, Pages: 3899-3905(2019)
- 作者机构：
  
  中国石油大学(北京)催化重点实验室，北京 102249
- 作者简介：
- 基金信息：
- DOI：10.11949/0438-1157.20190608
  CLC： TQ 028.4
- Received：22 June 2019，
  
  Revised：2019-07-30，
  
  Online First：24 July 2026，
  
  Published：05 October 2019
- 稿件说明：
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丁立群, 袁晓冰, 刘昌见. 1-甲基萘-正癸烷-1-十四烯-环丁砜体系液液相平衡数据测定及关联[J]. 化工学报, 2019, 70(10): 3899-3905

DING Liqun, YUAN Xiaobing, LIU Changjian. Measurement and correlation of liquid-liquid equilibrium data for 1-methylnaphthalene-n-decane-1-tetradecene-sulfolane system[J]. CIESC Journal, 2019, 70(10): 3899-3905
丁立群, 袁晓冰, 刘昌见. 1-甲基萘-正癸烷-1-十四烯-环丁砜体系液液相平衡数据测定及关联[J]. 化工学报, 2019, 70(10): 3899-3905 DOI： 10.11949/0438-1157.20190608.

DING Liqun, YUAN Xiaobing, LIU Changjian. Measurement and correlation of liquid-liquid equilibrium data for 1-methylnaphthalene-n-decane-1-tetradecene-sulfolane system[J]. CIESC Journal, 2019, 70(10): 3899-3905 DOI： 10.11949/0438-1157.20190608.

摘要

采用溶剂萃取分离催化裂化柴油中的芳烃是催化裂化柴油改质一条有效的途径。测定了常压下323.15、333.15和343.15 K时1-甲基萘-正癸烷-1-十四烯-环丁砜体系的液液相平衡数据，得到该体系的三元相图，1-甲基萘对非芳烃的选择性系数保持在2~55之间，说明环丁砜溶剂萃取分离1-甲基萘是可行的。采用Hand方程和Othmer-Tobias方程对相平衡数据进行关联，相关性系数均大于0.99，表明相平衡数据具有较好的一致性。利用NRTL方程进行关联，获得二元交互作用参数，NRTL模型计算值与实验值的均方根偏差很小，说明NRTL模型适合该体系的液液相平衡。

Abstract

Separation of aromatic hydrocarbons in catalytically cracked diesel by solvent extraction is an effective way to reform catalytic diesel. Liquid-liquid equilibrium data provides basic data and theoretical guidance for the simulation

design and optimization of solvent-extracted aromatics process. The liquid-liquid equilibrium data of 1-methylnaphthalene-

-decane-1-tetradecene-sulfolane system at 323.15

333.15 and 343.15 K were determined at atmospheric pressure. The ternary phase diagram of this system was obtained. The correlation coefficient of Hand equation and Othmer-Tobias equation was over 0.99

which indicated that the phase equilibrium data have good consistency. The binary interaction parameters were obtained by correlation with NRTL equation

the root mean square deviation between the calculated value and the experimental value was small

indicating that the NRTL model was suitable for the system. The selectivity coefficient of 1-methylnaphthalene to non-aromatic hydrocarbons was maintained between 2 and 55

it showed good separation performance.

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Keywords

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⁰

Measurement and correlation of liquid-liquid equilibrium data for 1-methylnaphthalene-n-decane-1-tetradecene-sulfolane system

DOI：10.11949/0438-1157.20190608

摘要

Abstract

关键词

Keywords

references