DISCOTIC SHAPE OF ASPHALTENES OBTAINED FROM GPC DATA

被引：17

作者：

ACEVEDO, S

ESCOBAR, G

RANAUDO, MA

GUTIERREZ, LB

机构：

[1] Centro de Química Orgánica, Escuela de Química, Facultad de Ciencias, Caracas

来源：

FUEL | 1994年 / 73卷 / 11期

关键词：

ASPHALTENES; DISC SHAPE; GEL PERMEATION CHROMATOGRAPHY;

D O I：

10.1016/0016-2361(94)90174-0

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：

A simple procedure, based on the calibration lines of polystyrene (PS) and octylated asphaltenes (OA) standards, is proposed. The theoretical ratio between the slopes of these lines (B = 1.18) was close to the experimental (1.218) and to others in the literature when a disc shape for the AS is assumed. By assuming a disc shape for the asphaltenes, a thickness, sigma, of 0.373 +/- 0.016 nm was found. This value is very close to others reported in the literature using the small angle X-ray scattering (SAXS) technique.

引用

收藏

页码：1807 / 1809

页数：3

相关论文

共 13 条

[1] ASPHALTENES AND RESINS FROM THE ORINOCO BASIN [J].

ACEVEDO, S ;

MENDEZ, B ;

ROJAS, A ;

LAYRISSE, I ;

RIVAS, H .

FUEL, 1985, 64 (12) :1741-1747

[2] SYNTHESIS AND ISOLATION OF OCTYLATED ASPHALTENE STANDARDS FOR CALIBRATION OF GPC COLUMNS AND DETERMINATION OF ASPHALTENE MOLECULAR-WEIGHTS [J].

ACEVEDO, S ;

ESCOBAR, G ;

GUTIERREZ, LB ;

DAQUINO, J .

FUEL, 1992, 71 (09) :1077-1079

[3] CHARACTERIZATION OF BITUMINOUS COMPOUNDS BY GEL-PERMEATION CHROMATOGRAPHY (GPC) [J].

BRULE, B .

JOURNAL OF LIQUID CHROMATOGRAPHY, 1979, 2 (02) :165-192

[4]

Brule B., 1981, AM CHEM SOC DIV FUEL, V26, P28

[5] MACROSTRUCTURE OF ASPHALTENE DISPERSIONS BY SMALL-ANGLE X-RAY-SCATTERING [J].

HERZOG, P ;

TCHOUBAR, D ;

ESPINAT, D .

FUEL, 1988, 67 (02) :245-250

[6] GEL-PERMEATION CHROMATOGRAPHY OF ASPHALT AND CHARACTERIZATION OF ITS FRACTIONS IN TERMS OF MOLECULAR AND UNIT SHEET WEIGHTS [J].

KIET, HH ;

BLANCHARD, LP ;

MALHOTRA, SL .

SEPARATION SCIENCE, 1977, 12 (06) :607-634

[7]

LIANG KS, 1990, ABSTR PAP AM CHEM S, V200, P32

[8] STRUCTURAL STUDIES OF ASPHALTICS BY X-RAY SMALL ANGLE SCATTERING [J].

POLLACK, SS ;

YEN, TF .

ANALYTICAL CHEMISTRY, 1970, 42 (06) :623-&

[9] ASPHALTENE MACROSTRUCTURE BY SMALL-ANGLE NEUTRON-SCATTERING [J].

RAVEY, JC ;

DUCOURET, G ;

ESPINAT, D .

FUEL, 1988, 67 (11) :1560-1567

[10] SIZE AND SHAPE OF ASPHALTENE PARTICLES IN RELATIONSHIP TO HIGH-TEMPERATURE VISCOSITY [J].

REERINK, H .

INDUSTRIAL & ENGINEERING CHEMISTRY PRODUCT RESEARCH AND DEVELOPMENT, 1973, 12 (01) :82-88