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Transformation of petroleum asphaltenes in supercritical alcohols—A tool to change H/C ratio and remove S and N atoms from refined products. / Chibiryaev, A. M.; Kozhevnikov, I. V.; Martyanov, O. N.

в: Catalysis Today, Том 329, 01.06.2019, стр. 177-186.

Результаты исследований: Научные публикации в периодических изданияхстатьяРецензирование

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Chibiryaev AM, Kozhevnikov IV, Martyanov ON. 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 июнь 1;329:177-186. doi: 10.1016/j.cattod.2018.10.066

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@article{a891ce3e6fc046c8b0e2e57aa169533b,
title = "Transformation of petroleum asphaltenes in supercritical alcohols—A tool to change H/C ratio and remove S and N atoms from refined products",
abstract = "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.",
keywords = "Asphaltenes upgrading, CHNSO analysis, Denitrogenation, Desulfurization, Supercritical alcohols, van Krevelen diagram, VACUUM RESIDUE, ORGANIC-MATTER, HIGH-YIELD, ACETAL FORMATION, RESONANCE MASS-SPECTROMETRY, ACTIVATED CARBON, BIO-OIL, PARTIAL OXIDATION, BITUMEN CRACKING, HEAVY CRUDE OILS",
author = "Chibiryaev, {A. M.} and Kozhevnikov, {I. V.} and Martyanov, {O. N.}",
year = "2019",
month = jun,
day = "1",
doi = "10.1016/j.cattod.2018.10.066",
language = "English",
volume = "329",
pages = "177--186",
journal = "Catalysis Today",
issn = "0920-5861",
publisher = "Elsevier",

}

RIS

TY - JOUR

T1 - Transformation of petroleum asphaltenes in supercritical alcohols—A tool to change H/C ratio and remove S and N atoms from refined products

AU - Chibiryaev, A. M.

AU - Kozhevnikov, I. V.

AU - Martyanov, O. N.

PY - 2019/6/1

Y1 - 2019/6/1

N2 - 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.

AB - 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.

KW - Asphaltenes upgrading

KW - CHNSO analysis

KW - Denitrogenation

KW - Desulfurization

KW - Supercritical alcohols

KW - van Krevelen diagram

KW - VACUUM RESIDUE

KW - ORGANIC-MATTER

KW - HIGH-YIELD

KW - ACETAL FORMATION

KW - RESONANCE MASS-SPECTROMETRY

KW - ACTIVATED CARBON

KW - BIO-OIL

KW - PARTIAL OXIDATION

KW - BITUMEN CRACKING

KW - HEAVY CRUDE OILS

UR - http://www.scopus.com/inward/record.url?scp=85056570332&partnerID=8YFLogxK

U2 - 10.1016/j.cattod.2018.10.066

DO - 10.1016/j.cattod.2018.10.066

M3 - Article

AN - SCOPUS:85056570332

VL - 329

SP - 177

EP - 186

JO - Catalysis Today

JF - Catalysis Today

SN - 0920-5861

ER -

ID: 17471224