Effect of compositions of the mixed alkanolamide on oil/water dynamic interfacial tensions

doi:10.16085/j.issn.1000-6613.2015.08.008

Chemical Industry and Engineering Progree ›› 2015, Vol. 34 ›› Issue (08): 2955-2960.DOI: 10.16085/j.issn.1000-6613.2015.08.008

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Effect of compositions of the mixed alkanolamide on oil/water dynamic interfacial tensions

FENG Rusen^1,2, PU Di¹, ZHOU Yang¹, CHEN Junhua¹, KOU Jiang¹, JIANG Xue¹, GUO Yongjun^1,2

1 College of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu 610500, Sichuan, China;
2 State Key Lab of Oil and Gas Reservoirs Geology and Exploration, Chengdu 610500, Sichuan, China

Received:2014-12-29 Revised:2015-01-17 Online:2015-08-05 Published:2015-08-05

混合型烷醇酰胺组成对油/水动态界面张力的影响

冯茹森^1,2, 蒲迪¹, 周洋¹, 陈俊华¹, 寇将¹, 姜雪¹, 郭拥军^1,2

1 西南石油大学化学与化工学院, 四川成都 610500;
2 西南石油大学油气藏地质及开发工程国家重点实验室, 四川成都 610500

通讯作者: 郭拥军,研究员,博士,从事油田化学处理剂研制、开发及作用机理研究、化工生产管理。E-mail gyfzgyj@126.com。
作者简介:冯茹森(1972—),男,副教授,主要从事提高采收率理论与技术研究工作,E-mail gs_frs@163.com。
基金资助:
国家科技重大专项“大型油气田及煤层气开发”项目(2011 ZX05010-004)。

Abstract

Abstract: nd model predictive control (MPC). The following points should be taken into account for further research on pharmaceutical freeze-drying monitoring and control technology. The contribution of three different heat transfer modes (radiation, convection, and conduction) should be investigated, so that a two-dimensional or three-dimensional model of pharmaceutical lyophilization in vials can be built, and more precise monitoring of process parameters can be obtained; Real-time optimal control strategy of shelf temperature and chamber pressure should be studied, with the aim of controlling pharmaceutical freeze-drying process timely and effectively.

Key words: mixed alkanolamide, surfactants, interfacial tension, GC-MS, compound laws, synergy effect

摘要： 为了探究混合型烷醇酰胺复杂组成对油/水界面张力的作用机制,采用GC-MS联用分析了混合型烷醇酰胺(GYD)的组成,并用自制的不同烷基链长醇酰胺(简记为C_nDEA,n=8,10,12,14,16)在大庆原油条件下研究了GYD组成对油/水界面张力的影响规律。结果表明,降低油/水界面张力能力强弱为C₁₄DEA> C₁₂DEA≈GYD> C₁₆DEA> C₁₀DEA> C₈DEA,C₁₄DEA、C₁₂DEA和GYD在一定浓度范围内能降低油/水界面张力至10^-3mN/m数量级;C_nDEA之间复配体系的界面活性取决于体系中各单分子结构烷醇酰胺相对含量,其中C₁₄DEA/C₁₂DEA相对含量是影响体系油/水界面活性的关键因素,当C₁₄DEA/C₁₂DEA复配比大于1时,体系达到超低界面张力浓度窗口更宽,界面动态特性更好;适量助剂(月桂酸和二乙醇胺)的加入对体系降低界面张力有一定的协同效应;GYD/C₁₄DEA复配体系随C₁₄DEA浓度增加,体系界面活性明显改善。

关键词: 混合型烷醇酰胺, 表面活性剂, 界面张力, GC-MS联用, 复配规律, 协同效应

CLC Number:

TE39

FENG Rusen, PU Di, ZHOU Yang, CHEN Junhua, KOU Jiang, JIANG Xue, GUO Yongjun. Effect of compositions of the mixed alkanolamide on oil/water dynamic interfacial tensions[J]. Chemical Industry and Engineering Progree, 2015, 34(08): 2955-2960.

冯茹森, 蒲迪, 周洋, 陈俊华, 寇将, 姜雪, 郭拥军. 混合型烷醇酰胺组成对油/水动态界面张力的影响[J]. 化工进展, 2015, 34(08): 2955-2960.

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Effect of compositions of the mixed alkanolamide on oil/water dynamic interfacial tensions

混合型烷醇酰胺组成对油/水动态界面张力的影响

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