Specific Asphaltene Aggregation in Toluene at Around 50 mg/L

被引：6

作者：

Morimoto, Masato ^{[1
]}

Morita, Takeshi ^{[2
]}

Takanohashi, Toshimasa ^{[1
]}

Nishikawa, Keiko ^{[2
]}

机构：

[1] Natl Inst Adv Ind Sci & Technol, Energy Technol Res Inst, Adv Fuel Grp, Tsukuba, Ibaraki 3058569, Japan

[2] Chiba Univ, Grad Sch Sci & Technol, Div Divers Sci, Inage Ku, Chiba 2638522, Japan

来源：

JOURNAL OF THE JAPAN PETROLEUM INSTITUTE | 2013年 / 56卷 / 01期

关键词：

Asphaltene; Aggregation; Small-angle X-ray scattering; Synchrotron; Distance distribution function; Critical nanoaggregate concentration; X-RAY-SCATTERING; SPECTROSCOPY; FLUCTUATIONS; MODEL;

D O I：

10.1627/jpi.56.58

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

Asphaltene dispersed in toluene at 10-500 mg/L was analyzed using small-angle X-ray scattering (SAXS) with synchrotron radiation. The degree of fluctuation in the solutions showed a discontinuous maximum at 50 mg/L. Distance distribution function (DDF) analysis of the SAXS profiles suggested that the asphaltene formed a complex aggregated structure at 50 mg/L, whereas rodlike structures formed at 100 and 500 mg/L. The results indicate that 50 mg/L is a specific concentration on asphaltene aggregation state in toluene.

引用

页码：58 / 59

页数：2

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