Petroleum Luminophores of Pyrolytic Origin
and Energy Transfer between Their Components
Ch. K. Salmanova, Dzh. Dzh. Musaev, R. A. Dzhafarova, and A. P. Mamedov
Institute of Petrochemical Processes, National Academy of Sciences of Azerbaijan, Baku, Azerbaijan
Received December 3, 2008
Abstract—Photoexcitation of luminophores prepared from heavy oil pyrolysis tar was studied, and properties
of these compounds, determining the variation of the luminescence color and intensity depending on the
solution concentration, were evaluated.
ORGANIC SYNTHESIS AND INDUSTRIAL
ISSN 1070-4272, Russian Journal of Applied Chemistry, 2010, Vol. 83, No. 6, pp. 1032–1036. © Pleiades Publishing, Ltd., 2010.
Original Russian Text © Ch.K. Salmanova, Dzh.Dzh. Musaev, R.A. Dzhafarova, A.P. Mamedov, 2010, published in Zhurnal Prikladnoi Khimii, 2010,
Vol. 83, No. 6, pp. 978–982.
Petroleum luminophores (PLs) have attracted much
researchers’ attention recently because of the pos-
sibility of using them as reversible storage batteries for
solar energy, photosensitizers for decomposition of
organic compounds, photochromic materials, lumine-
scent dyes, and photostabilizers of polymers, and also
because of their wide use in capillary luminescence
flaw detection [1–4].
These properties are associated with the presence in
PLs of various fused polycyclic aromatic, naphtheno-
aromatic, and olefinic hydrocarbons and with the oc-
currence in them of one- and two-quantum photo-
physical and photochemical processes, including
Luminophores with yellow-green emission are the
most popular. They are used for information imaging.
This emission is exhibited by high-boiling petroleum
products containing aromatic hydrocarbons with a
definite extent of fusion of benzene rings and certain
heteroaromatic compounds. The content of such
compounds is particularly high in products of second-
dary oil refining, among which the catalytic cracking
products and products of pyrolysis of hydrocarbon raw
materials are produced in the largest amounts.
It is of much interest to prepare and study lumi-
nophores of the pyrolysis origin, which, in contrast to
luminophores of the cracking origin , consist
virtually exclusively of aromatic hydrocarbons and
have liquid and crystalline phases.
The results of chromatographic and mass-spec-
trometric studies showed [5–8] that heavy pyrolysis tar
(HPT) consists virtually exclusively of unsubstituted
and short-chain alkyl- and alkenyl-substituted aromatic
We examined the structural-group and individual
composition of aromatic hydrocarbons of the HPT
fraction with boiling points from 360 to 460°С by the
methods of UV spectroscopy, photoluminescence, and
quasilinear luminescence under the conditions of
Shpol’skii effect . We showed that the total content
of polycyclic aromatic hydrocarbons (PAHs) (> 90 wt %)
in this product considerably exceeds that in the
luminophore produced from primary oil refining
products, Noriol (~52 wt %) . In the 300–350 and
350–400°С fractions, thermoluminescence and thermo-
chemiluminescence were detected without special
preliminary irradiation , which suggests ionization
and decomposition of their molecules and formation of
peroxides under the action of daylight.
The composition and luminescence properties of
low- and high-boiling HPT fractions practically were
not studied, that restricts the possibility of preparing
from them luminophores with a wider range of varia-
tion of spectral and luminescence properties.
The goal of this study is preparation of
luminophores from fraction isolated from HPT in a
wide temperature range (200–400 and above 400°С)
and elucidation of specific features of their lumine-
scence, associated with the multicomponent composi-