Change in the Concentration of Stable Free Radicals and Vanadyl Complexes in the Products of Reaction of Petroleum Asphaltenes with Sulfuric Acid

被引：1

作者：

Foss, L. E. ^{[1
]}

Shabalin, K. V. ^{[1
]}

Nagornova, O. A. ^{[1
]}

Morozov, V. I. ^{[1
]}

Borisov, D. N. ^{[1
]}

机构：

[1] Russian Acad Sci, A E Arbuzov Inst Organ & Phys Chem, FRC Kazan Sci Ctr, Moscow, Russia

来源：

CHEMISTRY AND TECHNOLOGY OF FUELS AND OILS | 2023年 / 59卷 / 05期

关键词：

asphaltenes; sulfuric acid; stable free radicals; vanadyl complexes; OXIDATION;

D O I：

10.1007/s10553-023-01607-4

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：

The products from the reaction of petroleum asphaltenes with sulfuric acid under various conditions, accompanied by oxidation, sulfonation, and decomposition reactions, were studied. The change in the content of stable free radicals and vanadyl complexes in the products from the reaction of asphaltenes with sulfuric acid in relation to the time and temperature was determined by EPR spectroscopy. The chemical processes in the reaction of asphaltenes with sulfuric acid take place most strongly in the first hour, being accompanied by peak growth of the concentration of stable free radicals. With increase in the length of treatment of the asphaltenes with sulfuric acid there is a decrease in the concentration of stable free radicals accompanied by a decrease in the content of sulfo groups in the products. After only 30 min of the process there was a marked decrease in the content of vanadyl complexes in the reaction products.

引用

页码：971 / 978

页数：8

共 4 条

[1] Change in the Concentration of Stable Free Radicals and Vanadyl Complexes in the Products of Reaction of Petroleum Asphaltenes with Sulfuric Acid
L. E. Foss
K. V. Shabalin
O. A. Nagornova
V. I. Morozov
D. N. Borisov
Chemistry and Technology of Fuels and Oils, 2023, 59 : 971 - 978
[2] STUDIES ON STABLE FREE RADICALS .2. REACTIVITY OF STABLE NITROXIDE RADICALS AND NMR SPECTRA OF REACTION PRODUCTS
MURAYAMA, K
MORIMURA, S
YOSHIOKA, T
BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN, 1969, 42 (06) : 1640 - +
[3] EFFECT OF GAMMA-RADIATION ON URIDYLIC ACID SOLUTIONS - ASSAY OF FREE RADICALS AND STABLE DEGRADATION PRODUCTS
CASTRO, E
JIMENEZ, R
ARCHIVOS DE BIOLOGIA Y MEDICINA EXPERIMENTALES, 1968, 5 (1-3): : R7 - &
[4] POLAROGRAPHIC STUDY OF THE COMPOSITION OF COMPLEXES IN THE SYSTEM TITANIUM(IV) - TITANIUM(III) IN SULFURIC ACID SOLUTION, WITH RESPECT TO THEIR CONCENTRATION AND PARTICIPATION IN THE ELECTRODIC REACTION
STROMBERG, AG
KARTUSHINASKAYA, AI
ZHURNAL FIZICHESKOI KHIMII, 1963, 37 (08): : 1793 - 1798

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