Реферат: The aliphatic alcohols (methanol, ethanol, 1- and 2-propanol) were used for the upgrading of petroleum asphaltenes. The process was performed under supercritical (sc) conditions at 350 °C. CHNSO analysis and GC methods were used to characterize the elemental and chemical composition of the products preliminarily divided into three fractions: hexane-soluble (HSF), benzene-soluble (BSF), and insoluble residue (IR). It was shown that the sc alcohols leads to the decrease of total content of sulfur and nitrogen in the products (HSF + BSF + IR) by 18–23 and 31–33 wt%, correspondingly, as compared with the initial asphaltenes (IA). The highest yield of the soluble fractions (HSF and BSF) was observed for 1-propanol and ethanol. It appeared that the alcohols used as a reaction media are partially consumed by incorporating in the product molecules as alkoxy substituents. The H and O content of HSF and BSF for all alcohols was significantly higher than that for IA. The composition of hexane-soluble fraction obtained after sc upgrading is quite similar to chemical composition of the diesel fraction, specifically to straight-run gas oil. The efficiency of each supercritical alcohol used for the upgrading of asphaltenes is analyzed and discussed.

Библиографическая ссылка: Chibiryaev A.M. , Kozhevnikov I.V. , Martyanov O.N.
Transformation of Petroleum Asphaltenes in Supercritical Alcohols – A Tool to Change H/C Ratio and Remove S and N Atoms from Refined Products
Catalysis Today. 2019. V.329. P.177-186. DOI: 10.1016/j.cattod.2018.10.066 WOS Scopus РИНЦ CAPlusCA OpenAlex Sciact

Даты:

Поступила в редакцию:	21 июл. 2018 г.
Принята к публикации:	26 окт. 2018 г.
Опубликована online:	8 нояб. 2018 г.
Опубликована в печати:	1 июн. 2019 г.

Идентификаторы БД:

Web of science:	WOS:000462764600022
Scopus:	2-s2.0-85056570332
РИНЦ:	38622323
Chemical Abstracts:	2018:2242538
Chemical Abstracts (print):	170:403656
OpenAlex:	W2899731278
Sciact:	28443

Цитирование в БД:

БД	Цитирований
Scopus	14
OpenAlex	15

Альметрики: