A Study of the Effect of UV Radiation on Resins and Asphaltene Fractions of Crude Oil by IR Spectroscopy

The photochemical stability of resins and asphaltenes during their photolysis under the influence of radiation from a mercury lamp is investigated by IR spectroscopy. It is found that exposure to UV light leads to a change in the band intensities of the absorption spectrum in the range of 400–3400 c...

Full description

Saved in:
Bibliographic Details
Published in:Optics and spectroscopy 2021, Vol.129 (1), p.149-152
Main Authors: Idrisov, T. S., Kurbanov, M. A., Kulieva, U. A.
Format: Article
Language:English
Subjects:
Absorption spectra
Alkanes
Applied Optics
Asphaltenes
Crude oil
Energy absorption
Infrared spectroscopy
Lasers
Luminous intensity
Mercury lamps
Optical Devices
Optics
Photolysis
Photonics
Physics
Physics and Astronomy
Polycyclic aromatic hydrocarbons
Resins
Spectrum analysis
Ultraviolet radiation
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The photochemical stability of resins and asphaltenes during their photolysis under the influence of radiation from a mercury lamp is investigated by IR spectroscopy. It is found that exposure to UV light leads to a change in the band intensities of the absorption spectrum in the range of 400–3400 cm –1 . The observed trends are explained on the basis of the transfer of excitation energy from polycyclic aromatic hydrocarbon (PAH) molecules to alkane molecules. From the values of the extinction coefficient and the relative concentration of PAHs in crude oil, the fractions of UV light energy absorption by molecules of individual PAH components are calculated.
ISSN:0030-400X
1562-6911
DOI:10.1134/S0030400X20120917