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首页> 外文会议>Journal of Central South University of Technology >Synthesis of new EVA graft copolymer and its pour point depressant performance evaluation for Daqing crude oil
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Synthesis of new EVA graft copolymer and its pour point depressant performance evaluation for Daqing crude oil

机译：新型EVA接枝共聚物的合成及其对大庆原油的降凝性能评估

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摘要

EVA was widely used as the pour point depressant for waxy oil. In order to improve its effect, some graft copolymerization methods should be used to modify EVA's property. EVA has long side chains and nitrogen polar groups to enforce its adaptability and effect of waxy oil. The pure amine, maleicanhydride and their reaction product were tested using infrared spectra and the NMR spectral. The results show that when the modified EVA is added into oil, the wax deposits not only on the main chain but also on the side chains. And the polar groups have the function to avoid and resist the wax crystals connection each other to form the net. Using the reaction product of maleicanhydride and high carbonic amine (C12, C16, C18 amine) as the graft component, the toluene as the solvent and BPO as the initiator, the series of new EVA graft copolymer with special side chains are prepared under controlled condition. A series of cylmaleimide exist indeed in modified EVA and the highest grafted percentage is 18.8%. EVA-16,the new graft copolymer, is better than EVA about 3 ℃ more in depressant the pour-point of Daqing waxy crude oil.
机译：EVA被广泛用作蜡质油的降凝剂。为了提高其效果，应使用某些接枝共聚方法来改变EVA的性能。 EVA具有长侧链和氮极性基团，以增强其适应性和蜡质油的效果。使用红外光谱和NMR光谱测试了纯胺，马来酸酐及其反应产物。结果表明，当将改性的EVA添加到油中时，蜡不仅沉积在主链上，而且沉积在侧链上。极性基团具有避免和抵抗蜡晶相互连接形成网的功能。以马来酸酐与高碳胺（C12，C16，C18胺）的反应产物为接枝组分，甲苯为溶剂，BPO为引发剂，在受控条件下制备了一系列新型的具有特殊侧链的EVA接枝共聚物。改性EVA中确实存在一系列环马来酰亚胺，最高接枝率为18.8％。新型的接枝共聚物EVA-16在大庆蜡质原油的凝点上比EVA高约3℃。

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  • 来源
  • 会议地点 Changsha(CN)
  • 作者

    Jenq-Muh Hsu; rnYen-Shou Lai; rnPao-Ta Yu;

  • 作者单位

    WU Li-juan(伍丽娟)@Beijing Key Laboratory of Urban Oil and Gas Distribution Technology, China University of Petroleum,Beijing 102249, China;

    Petroleum Engineering College, Yangtze University, Jingzhou 434023, China--ZHANG Fan(张帆)@Beijing Key Laboratory of Urban Oil and Gas Distribution Technology, China University of Petroleum,Beijing 102249, China--GUAN Zhong-yuan(关中原)@Scientific and Technical Center of China Petroleum Pipeline Corporation, Langfang 065000, China--GUO Shu-feng(郭淑凤)@Scientific and Technical Center of China Petroleum Pipeline Corporation, Langfang 065000, China--;

  • 会议组织
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 流体力学;
  • 关键词

    modification EVA; copolymer; pour point depressants; performance evolution; Daqing crud;

    机译：EVA改性;共聚物;抑制剂;性能演变;大庆产品;

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