Derivative UV-Vis spectroscopy of asphaltenes solutions for the determination of the composition

被引：4

作者：

Banda-Cruz, Ernestina Elizabeth ^{[1
]}

Gallardo-Rivas, Nohra Violeta ^{[1
]}

Martinez-Orozco, Reinaldo David ^{[1
]}

Paramo-Garcia, Ulises ^{[1
]}

Mendoza-Martinez, Ana Maria ^{[1
]}

机构：

[1] Tecnol Nacl Mexico, Inst Tecnol Cd Madero, Ctr Invest Petroquim, Prol Bahia de Aldhair & Ave Bahias, Altamira 89600, Tamaulipas, Mexico

来源：

PETROLEUM SCIENCE AND TECHNOLOGY | 2020年 / 38卷 / 08期

关键词：

asphaltenes; derivative spectroscopy; shape factor; UV-vis spectroscopy; zero order spectrums; ATHABASCA ASPHALTENE; CRUDE-OIL; ABSORPTION;

D O I：

10.1080/10916466.2020.1776730

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：

Derivative UV-vis spectroscopy increases the resolution of the bands obtained in a zero-order using the first and second derivative. The first derivative of UV-vis spectrum of asphaltenes solutions allows identification of 5 maximums: to 225 nm benzenic compounds, to 259 nm naphthenic compounds, to 295 nm phenanthrene, to 328 nm for linear three-ring aromatic chromophores and by most compact four-ring chromophores and 401 nm for vanadium petroporfirins. Calculation of the form factor indicates the presence of suspended colloids and particles. The results obtained confirm the presence of archipelago-type architecture in the asphaltenes analyzed.

引用

页码：666 / 671

页数：6

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