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首页> 外文期刊>Energy & fuels >Effects of Partially Hydrolyzed Polyacrylamide on Interfacial Dilational Properties of Gudao Crude Oil and Its Acidic/Basic Fractions
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Effects of Partially Hydrolyzed Polyacrylamide on Interfacial Dilational Properties of Gudao Crude Oil and Its Acidic/Basic Fractions

机译：部分水解聚丙烯酰胺对孤岛原油界面膨胀特性及其酸性/基础组分的影响

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摘要

In this research, we mainly studied the effects of partially hydrolyzed polyacrylamide (PHPAM) on crude oil interfacial properties; this is important in studying the stabilization mechanism of produced fluids with polymer and oil/water separation. The crude oil was separated into amphoteric, acidic, basic, and neutral fractions by ion-exchange chromatography. The molecular weight of the amphoteric fraction was the highest, and the acid number of the acidic fraction was the biggest Fourier transform infrared spectroscopy and elemental analysis of the functional fractions of Gudao crude oil showed that sulfur-, nitrogen-, and oxygen-containing functional groups occur mainly in the amphoteric, acidic, and basic fractions. The molecular weight and concentration of PHPAM had significant influences on the dilational moduli, dilational elasticities, and dilational viscosities of the crude oil and its fractions. As the molecular weight of PHPAM increased, the dilational moduli, elasticities, and viscosities of the oil-PHPAM/water solution interfacial films of crude oil and its acidic/basic fractions first increased and then decreased. The values were highest and the interfacial films were most stable when the PHPAM molecular weight was 7.6 X 106 g mor'. As the concentration of PHPAM increased, the dilational moduli of the oil-PHPAM/water solution interfacial films of the Gudao crude and its fractions consistently increased. The higher the concentration of PHPAM in the water solution, the more stable the oil/water interfacial film. As the dilational frequency increased, the dilational moduli, dilational elasticities, and phase angles of the oil/water interfacial films of the Gudao crude oil and its fractions increased but the dilational viscosities decreased.
机译：在这项研究中，我们主要研究部分水解的聚丙烯酰胺（PHPAM）对原油界面性能的影响。这对于研究通过聚合物和油/水分离产生的流体的稳定机理很重要。通过离子交换色谱将原油分为两性，酸性，碱性和中性馏分。两性馏分的分子量最高，酸性馏分的酸值为最大的傅里叶变换红外光谱。对孤岛原油功能馏分的元素分析表明，含硫，氮和氧的官能团基团主要存在于两性，酸性和碱性馏分中。 PHPAM的分子量和浓度对原油及其馏分的膨胀模量，膨胀弹性和膨胀粘度有重要影响。随着PHPAM分子量的增加，原油及其酸性/碱性馏分的油-PHPAM /水溶液界面膜的膨胀模量，弹性和粘度首先增加，然后降低。当PHPAM分子量为7.6 X 106 g mor'时，该值最高，界面膜最稳定。随着PHPAM浓度的增加，孤岛原油及其馏分的油-PHPAM /水溶液界面膜的膨胀模量持续增加。水溶液中PHPAM的浓度越高，油/水界面膜越稳定。随着扩张频率的增加，古道原油及其馏分的油/水界面膜的扩张模量，扩张弹性和相角增加，但扩张粘度降低。

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  • 来源
    《Energy & fuels》 |2012年第mayajuna期|p.3488-3496|共9页
  • 作者

    Jinhe Liu; Xiaowei Fang; Zongxian Wang; Pujiang Yang; Qingxuan Zhang;

  • 作者单位

    State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Qingdao, Shandong 266SSS, People's Republic of China;

    Research Institute of Petroleum Engineering and Technology, Henan Oil Field, Nanyang, Henan 473132, People's Republic of China;

    State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Qingdao, Shandong 266SSS, People's Republic of China;

    State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Qingdao, Shandong 266SSS, People's Republic of China;

    State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Qingdao, Shandong 266SSS, People's Republic of China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
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