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1.
Study on Composition and Structure of Liaoshu Asphalt 总被引:1,自引:0,他引:1
Cong Yufeng Huang Wei Liao Kejian Liu Guomin Yang Yanhai Liu Jun 《Petroleum Science and Technology》2004,22(11):1447-1454
In this article, the structure characteristics of Liaoshu paving asphalts have been studied by the methods of element analysis, SARA and E-D-M. At same time, the relation between composition and structure and using performance of Liaoshu paving asphalt were established. The experimental results show that carbon and hydrogen contents were more than 95%, the hydrogen/carbon atom ratio was about 1.5 in the Liaoshu paving asphalts. The content of saturates is between 20 and 25% in the Liaoshu paving asphalt, aromatics 35 and 40%, resin 25 and 30%, and asphaltene 8 and 10%. There are 45 carbon atoms in the average asphalt molecule, which contain 16-17 aromatic carbon atoms. The number of total ring in the average asphalt molecule is 5-6, the aromatic ring is 3-4, and the naphthene ring is 1-2. 相似文献
2.
《Petroleum Science and Technology》2013,31(11-12):1447-1454
Abstract In this article, the structure characteristics of Liaoshu paving asphalts have been studied by the methods of element analysis, SARA and E-D-M. At same time, the relation between composition and structure and using performance of Liaoshu paving asphalt were established. The experimental results show that carbon and hydrogen contents were more than 95%, the hydrogen/carbon atom ratio was about 1.5 in the Liaoshu paving asphalts. The content of saturates is between 20 and 25% in the Liaoshu paving asphalt, aromatics 35 and 40%, resin 25 and 30%, and asphaltene 8 and 10%. There are 45 carbon atoms in the average asphalt molecule, which contain 16–17 aromatic carbon atoms. The number of total ring in the average asphalt molecule is 5–6, the aromatic ring is 3–4, and the naphthene ring is 1–2. 相似文献
3.
《Petroleum Science and Technology》2013,31(3-4):455-462
Abstract In this article, the structure characteristics of Liaoshu paving asphalts have been studied by the methods of element analysis, SARA and E-D-M. At same time, the relation between composition and structure and using performance of Liaoshu paving asphalt were established. The experimental results show that carbon and hydrogen contents were more than 95%, the hydrogen/carbon atom ratio was about 1.5 in the Liaoshu paving asphalts. The content of saturates is between 20 and 25% in the Liaoshu paving asphalt, aromatics 35–40%, resin 25–30%, and asphaltene 8–10%. There are 45 carbon atoms in asphalt average molecule, which contain 16–17 aromatic carbon atoms. The number of total ring in asphalt average molecule is 5–6, the aromatic ring is 3–4, the naphthene ring is 1–2. 相似文献
4.
用辽河高粘原油生产重交通道路沥青的研究——(Ⅲ)辽曙沥青组成与结构分析 总被引:1,自引:0,他引:1
利用元素分析,族组成分析和结构族组成分析方法,研究了辽曙沥青的组成与结构,建立了辽曙沥青组成与结构和使用性能之间的关系。辽曙沥青碳氢含量在95%以上,氢碳原子比在1.5左右;辽曙沥青平均分子全部是多环结构,每个平均分子中的含有45个碳原子,其中芳碳数为16-17个,总环数为5-6个,其中芳环数为3-4个,辽曙沥青的沥青质含量在8%-10%之间,胶质含量在25%-30%之间,芳香分含量在35%-40%之间,饮和分含量在20%-25%之间的族组成使沥青具有良好的性能。 相似文献
5.
The changes of the structural parameters of the average molecules of Chinese Shanjiasi and Shengli petroleum asphalts and their constituents during oxygen absorption were studied based on the oxygen absorption behaviors and the chemical group composition and structure changes. The results show that all the structural parameters of the average molecules of asphalts and their constituents increase clearly after oxygen absorption with the exceptions of the naphthene carbon rates and the paraffin carbon rates. The parameters include the total carbon numbers, the aromatic carbon numbers, the naphthene carbon numbers, the paraffin carbon numbers, the total ring numbers, the aromatic ring numbers, the naphthene ring numbers, the total hydrogen numbers, the aromaticities, and the concentration indexes. The most obvious are the structural parameter changes of the average molecules of the asphalt resin and asphaltene constituents. The structural parameter changes of the average molecules of Shengli asphalt and its constituents are remarkably greater than those of Shanjiasi asphalt and its constituents. The clearer changes of all the average molecular structure parameters of SHL asphalt resin and asphaltene, especially resin could possibly be one of the key factors leading to the much clearer deterioration of the colloidal stability and the serviceability than SJS asphalt in oxygen absorption. 相似文献
6.
《Petroleum Science and Technology》2013,31(3-4):275-286
Abstract The changes of the structural parameters of the average molecules of Chinese Shanjiasi and Shengli petroleum asphalts and their constituents during oxygen absorption were studied based on the oxygen absorption behaviors and the chemical group composition and structure changes. The results show that all the structural parameters of the average molecules of asphalts and their constituents increase clearly after oxygen absorption with the exceptions of the naphthene carbon rates and the paraffin carbon rates. The parameters include the total carbon numbers, the aromatic carbon numbers, the naphthene carbon numbers, the paraffin carbon numbers, the total ring numbers, the aromatic ring numbers, the naphthene ring numbers, the total hydrogen numbers, the aromaticities, and the concentration indexes. The most obvious are the structural parameter changes of the average molecules of the asphalt resin and asphaltene constituents. The structural parameter changes of the average molecules of Shengli asphalt and its constituents are remarkably greater than those of Shanjiasi asphalt and its constituents. The clearer changes of all the average molecular structure parameters of SHL asphalt resin and asphaltene, especially resin could possibly be one of the key factors leading to the much clearer deterioration of the colloidal stability and the serviceability than SJS asphalt in oxygen absorption. 相似文献
7.
The aging processes of two Anshan paving asphalts conforming to GB/T15180-94 standard have been studied by Rotation Thin Film Oven Test (RTFOT) and the aging kinetic models of two paving asphalts have been determined. The results show that the aging of the prepared paving asphalt is a first order reaction. The viscosity of the asphalt increases gradually with the aging time. The greater the aging index is, the more easily the asphalt is aged. Because the chains break down to form free radicals, oxidation reactions occur. The aging resistance of the asphalt with lower aromaticity and with less aromatic cycle numbers is weak. 相似文献
8.
《Petroleum Science and Technology》2013,31(9-10):951-960
ABSTRACT The aging processes of two Anshan paving asphalts conforming to GB/T15180-94 standard have been studied by Rotation Thin Film Oven Test (RTFOT) and the aging kinetic models of two paving asphalts have been determined. The results show that the aging of the prepared paving asphalt is a first order reaction. The viscosity of the asphalt increases gradually with the aging time. The greater the aging index is, the more easily the asphalt is aged. Because the chains break down to form free radicals, oxidation reactions occur. The aging resistance of the asphalt with lower aromaticity and with less aromatic cycle numbers is weak. 相似文献
9.
道路石油沥青中蜡对沥青性质的影响 总被引:4,自引:3,他引:1
测定了大庆和辽河100号道路石油沥青中蜡的分布,并将其中的饱和蜡,芳香蜡,总蜡分离出来,用其与脱蜡沥青调制成蜡含量不同的系列样品,考察了饱和蜡,芳香蜡对沥青物理性质的影响,总蜡对沥青路用性能的影响,对沥青质量指标中否应设置蜡含量指标进行了讨论. 相似文献
10.
Sun Da-Quan Liao Ke-Jian Huo Kai-Fu Wei Yi Yan feng Zhai Yu-Chun 《Petroleum Science and Technology》2000,18(7):825-834
The characteristics of the high viscous crude from No. 1 Shuguang Zone of Liaohe Oil Field are similar to those of residue distillates of general crude such as high density(ρ 20=0·9977 g.cm-3),high viscidity υ 100= 1223·9 mm2.s-1) and high carbon/hydrogen ratio. This oil contains less wax, but rich in resin and asphalt, which belongs to low sulfur naphthene-base crude oil and can be used as feedstock to produce high paving asphalt. But now it is used as fuel after emulsificating. In order to make full use of this oil and resolve the problem of paving asphalt demand-supply, various paving asphalts conforming to GB50092-96 standard were produced by blending vacuum residue of the high viscous crude from No.l Shuguang Zone of Liaohe Oil Field and waste oil which is rich in aromatics and poor in wax. The laboratory test results show that modified paving asphalts have good low-temperature properties and antiaging feature. 相似文献
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12.
Sun Da-Quan Liao Ke-Jian Huo Kai-Fu Wei Yi Yan feng Zhai Yu-Chun 《Petroleum Science and Technology》2013,31(7-8):825-834
ABSTRACT The characteristics of the high viscous crude from No. 1 Shuguang Zone of Liaohe Oil Field are similar to those of residue distillates of general crude such as high density(ρ 20=0·9977 g.cm-3),high viscidity υ 100= 1223·9 mm2.s-1) and high carbon/hydrogen ratio. This oil contains less wax, but rich in resin and asphalt, which belongs to low sulfur naphthene-base crude oil and can be used as feedstock to produce high paving asphalt. But now it is used as fuel after emulsificating. In order to make full use of this oil and resolve the problem of paving asphalt demand-supply, various paving asphalts conforming to GB50092-96 standard were produced by blending vacuum residue of the high viscous crude from No.l Shuguang Zone of Liaohe Oil Field and waste oil which is rich in aromatics and poor in wax. The laboratory test results show that modified paving asphalts have good low-temperature properties and antiaging feature. 相似文献
13.
《Petroleum Science and Technology》2007,25(11):1401-1414
The simplest general compositional model considers asphalt to be made up of asphaltenes, heavy oils, and resins. In the present study the extent of similarity between the properties and composition of various types of asphalt obtained from different sources has been carefully explored. It shows how ductility, penetration, and softening point are related to the chemical nature of paving asphalts in the range 41-58 softening points. Asphalt properties are found to be a direct function of its chemical constituents. The relationship between softening point and asphaltene content was found to be linear while asphalts of the same softening point are easily distinguished by the content of the resins. Evaluation of the two asphalt indices—the asphaltene index (IA) and the Gaestel index (IC), reveals that they both vary linearly with the composition of asphaltenes and resins thus confirming their suitability in the characterization of asphalts. Comparison of the two indices shows that IC is more suitable in estimating the colloidal stability of different groups of asphalts. The observed correlations can be found useful in the areas of asphalt blending and rejuvenating through the appropriate selection of asphalt components. 相似文献
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In this article, asphaltene index, aging index, and Gastel index (Ic) are introduced to study the aging resistance of paving asphalts. Meanwhile, the solubility parameter theory is applied to evaluate the aging resistance of these paving asphalts. The results show that the greater the asphaltene index, the aging index or the Gastel index, the worse the aging resistance of the paving asphalt. The small difference between solubility parameters of asphaltene and maltene of the paving asphalt contributes to its good aging resistance. The analytical results in these two ways are consistent. 相似文献
17.
煤液化油模型分子结构的研究 总被引:1,自引:1,他引:0
对神华煤在连续液化装置的加氢液化油(试样1#)和实验室获得的液化油(试样2#)进行了模型分子结构的研究。通过元素分析、平均相对分子质量的测定、核磁共振谱图和傅里叶变换红外光谱的分析,得到了两种液化油的平均分子结构式和相关的结构参数,并利用这些参数推测了模型分子的结构。实验结果表明,试样1#和试样2#的平均相对分子质量分别为228,299;平均分子式分别为C17H23N0.1S0.006O0.02和C23H21N0.02S0.002O0.1;试样1#的模型分子结构以含一个芳香环的部分氢化芳烃为主体;试样2#主要以含3~4个芳香环的缩合芳烃为结构单元;两种试样芳香环上均存在取代基,但取代基的碳数不一样,且存在少量氮和氧形成杂环。 相似文献
18.
简要介绍了中石化股份公司抚顺石油化工研究院近几年来在石油沥青类产品的生产和应用技术开发方面所取得的主要成果,包括高等级道路沥青、改性沥青、水工沥青、乳化沥青、彩铺胶结料及其它特种沥青等产品的开发与应用情况。在近几年的研究开发工作中.该院密切注意石油沥青技术的发展动向与市场应用情况,并结合国内外原油情况,开发了包括高等级道路沥青在内的系列沥青产品生产技术。这些沥青类产品已经应用于各类工程建设中。 相似文献
19.
《Petroleum Science and Technology》2013,31(11-12):1843-1850
Abstract In this article, asphaltene index, aging index, and Gastel index (Ic) are introduced to study the aging resistance of paving asphalts. Meanwhile, the solubility parameter theory is applied to evaluate the aging resistance of these paving asphalts. The results show that the greater the asphaltene index, the aging index or the Gastel index, the worse the aging resistance of the paving asphalt. The small difference between solubility parameters of asphaltene and maltene of the paving asphalt contributes to its good aging resistance. The analytical results in these two ways are consistent. 相似文献