ISSN 1070-4272, Russian Journal of Applied Chemistry, 2016, Vol. 89, No. 2, pp. 330−333. © Pleiades Publishing, Ltd., 2016.
Original Russian Text © V.A. Burakhta, I.I. Gavrilina,
2016, published in Zhurnal Prikladnoi Khimii, 2016, Vol. 89, No. 2, pp. 275−279.
Characterization of Liquid Products
of Automobile Tire Pyrolysis
V. A. Burakhta and I. I. Gavrilina
West Kazakhstan University of Innovative Technologies, ul. Ikhsanova 44/1, Ural’sk, 090006 Kazakhstan
Received December 18, 2015
Abstract—The liquid product of automobile tire pyrolysis and its fractions were studied. The amount of the liquid
hydrocarbon fraction is 40–45% of the total weight of pyrolysis products. The hydrocarbon fraction is similar in its
characteristics to low-sulfur heavy crude oil. Fractionation of the hydrocarbon fuel was performed. The maximal
yield of the light distillation fraction is 39% (temperature interval 180–340°С). The extent to which the charac-
teristics of the light fraction obtained meet the regulations was evaluated. The light fraction of hydrocarbon fuel
produced by pyrolysis is recommended for use as a component of diesel motor fuel after additional puriﬁ cation.
The exhaustion of the natural crude oil deposits
and, as a consequence, the shortage of raw materials
for production of motor fuels is today one of the most
pressing problems of oil-reﬁ ning industry. The problem
of waste utilization is of no less concern. The amount
of wastes steadily grows, and active efforts are made in
the modern industry to ﬁ nd ways for their utilization.
One of the most topical problems of waste utilization is
utilization of spent automobile tires.
There are several methods for utilization of automo-
bile tires: storage, incineration, and pyrolysis. Storage
does not solve the utilization problem, and incineration
negatively affects the environment. Pyrolysis is one of
promising methods for reprocessing automobile tire
Despite researchers’ attention to pyrolysis [1–3], only
a few research teams deal with expansion of application
ﬁ elds of the pyrolysis products. The major pyrolysis
product is pyrolysis liquid, which can be used as boiler
fuel. Because pyrolysis liquid is a complex mixture of
hydrocarbons , it has high potential as a source of
motor fuels. However, only single papers concern the
use of pyrolysis fuel in production of motor fuels.
For example, Cumali and Hüseyin  attempted for
the ﬁ rst time to use pyrolysis fuel as a fuel for internal
combustion engines. They performed experiments on
pyrolysis of automobile tires in a nitrogen medium with
calcium hydroxide as catalyst. The liquid pyrolysis
product was mixed with the diesel fraction of oil and
was used as a fuel for an engine, after which the engine
operation characteristics and exhaust gas toxicity were
measured in comparison with the operation using
petroleum diesel fuel. It was found experimentally that
direct mixing of the pyrolysis fuel with the petroleum
diesel fuel led to an increase in the concentration of
sulfur, nitrogen, and carbon oxides in the exhaust to the
level that did not met the requirements of international
quality standards. To reduce the concentration of toxic
oxides in the exhaust, Hüseyin and Cumali  suggested
using special catalysts and calcium oxide or calcium
and sodium hydroxides as sulfur absorbents. Such fuel
contained a lower amount of pollutants, but the sulfur
content and density still did not meet the requirements to
motor diesel fuel. Therefore, it is necessary to perform
additional studies aimed not only at ﬁ nding ways for the
use of the liquid pyrolysis product in the fuel industry for
production of diesel motor fuel, but also at solving the
problem of efﬁ cient utilization of wastes, in particular,
of spent automobile tires.
To this end, we performed reprocessing of automobile
tires from the West Kazakhstan oblast by pyrolysis.