| 原油各组分表面膜性质的研究 |
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| 引用本文： | 丁德磐,孙在春,徐梅清. 原油各组分表面膜性质的研究[J]. 中国石油大学学报(自然科学版), 1998, 0(3) |
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| 作者姓名： | 丁德磐 孙在春 徐梅清 |
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| 作者单位： | 石油大学炼制系 |
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| 摘 要： | 从草桥重质原油和草桥重油中分离出饱和分、芳香分、胶质和沥青质，用Ｌａｎｇｍｕｉｒ膜天平研究了这些物质在水面上形成的表面膜的膜压及水相ｐＨ值对膜压的影响。研究结果表明，在相同的归一化面积下，沥青质表面膜的膜压明显高于其它组分的表面膜膜压。与沥青质相比，胶质的表面膜膜压随水相ｐＨ值的增大有较显著的增高。
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| 关 键 词： | 原油；组分；表面；膜；吸附；压力 |
/ PROPERTIES OF SURFACE FILM OF OIL COMPONENTS |
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| Ding Depan Hainan province of China. / PROPERTIES OF SURFACE FILM OF OIL COMPONENTS[J]. Journal of China University of Petroleum (Edition of Natural Sciences), 1998, 0(3) |
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| Authors: | Ding Depan Hainan province of China |
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| Affiliation: | Sanya: 572000 |
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| Abstract: | The natures of surface film of oil components separated from Caoqiao heavy oil and residues by Langmiur film balance were studied. The results showed that the sequence of surface film pressure of four components is as follows: asphaltene>resin>aromatics>saturates. The pH value of water phase has a great effect on the film pressure. The film pressure of asphaltene is more than that of other components. The film pressure of resin increased with raise of pH value. |
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| Keywords: | crude oil fraction surface membrane adsorption pressure |
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