Change in concentrations of antioxidants and paramagnetic centers during aging of petroleum transformer oils: Fid-Bau Portal

Fachinformationsdienst BAUdigital

A platform for research: civil engineering, architecture and urbanism

Change in concentrations of antioxidants and paramagnetic centers during aging of petroleum transformer oils

Kamenchuk, Ya. A. / Pisareva, S. I.

Abstract Transformer oils (TOs) at different degrees of degradation were studied by means of a kinetic method using the model reaction of initiated cumene oxidation and by IR, ESR, and NMR spectroscopy. In the course of TO aging, the antioxidant additive ionol was consumed, and the concentration of new antioxidants, paramagnetic centers, and fused aromatic compounds increased. It was found that one of the main causes of the decrease in the dielectric properties of the oils (increase in the dielectric loss tangent) is the formation of free radicals inducing the formation of colloid structures.

Access

Check availability in my library

Order at Subito €

Page navigation

Document information

Export, share and cite

Change in concentrations of antioxidants and paramagnetic centers during aging of petroleum transformer oils

Kamenchuk, Ya. A. / Pisareva, S. I.

Abstract Transformer oils (TOs) at different degrees of degradation were studied by means of a kinetic method using the model reaction of initiated cumene oxidation and by IR, ESR, and NMR spectroscopy. In the course of TO aging, the antioxidant additive ionol was consumed, and the concentration of new antioxidants, paramagnetic centers, and fused aromatic compounds increased. It was found that one of the main causes of the decrease in the dielectric properties of the oils (increase in the dielectric loss tangent) is the formation of free radicals inducing the formation of colloid structures.

Change in concentrations of antioxidants and paramagnetic centers during aging of petroleum transformer oils

Kamenchuk, Ya. A. / Pisareva, S. I.

Abstract Transformer oils (TOs) at different degrees of degradation were studied by means of a kinetic method using the model reaction of initiated cumene oxidation and by IR, ESR, and NMR spectroscopy. In the course of TO aging, the antioxidant additive ionol was consumed, and the concentration of new antioxidants, paramagnetic centers, and fused aromatic compounds increased. It was found that one of the main causes of the decrease in the dielectric properties of the oils (increase in the dielectric loss tangent) is the formation of free radicals inducing the formation of colloid structures.

Access

Check availability in my library

Order at Subito €

Page navigation

Document information

Export, share and cite

Document information

Title:

Change in concentrations of antioxidants and paramagnetic centers during aging of petroleum transformer oils

Contributors:

Kamenchuk, Ya. A. (author) / Pisareva, S. I. (author)

Published in:

Petroleum Chemistry ; 46 ; 367-370

Publication date:

2006-10-01

Size:

4 pages

ISSN:

1555-6239 , 0965-5441

DOI:

https://doi.org/10.1134/S0965544106050112

Type of media:

Article (Journal)

Type of material:

Electronic Resource

Language:

English

Keywords:

Dielectric Loss , Petroleum Chemistry , Paramagnetic Center , Kinetic Method , Dielectric Loss Tangent Chemistry , Industrial Chemistry/Chemical Engineering

Similar titles

Kinetic analysis of petroleum antioxidants

Zeinalov, E.B. / Tsepalov, V.F. / Gladyshev, G.P. | Elsevier | 1983

Paramagnetic properties of petroleum rock of the Karazhanbas field and their change during thermolysis

Botova, V.I. / Iordanidi, G.K. / Sagindykov, A.A. | Elsevier | 1988

Transformer insulating oils

Warner, W.E. | Engineering Index Backfile | 1929

Natural antioxidants in West Kazakhstan crude oils

Karpitskii, V.I. / Sidorenko, A.A. | Elsevier | 1989

Water Pollution by Petroleum Oils

Gibbons, Mortimer M. | Wiley | 1940