Russian Journal of Applied Chemistry, 2011, Vol. 84, No. 7, pp. 1217−1222.
Pleiades Publishing, Ltd., 2011.
Original Russian Text © V.V. Samonin, V.Yu. Nikonova, M.L. Podvyaznikov, L.V. Grigor’eva, 2011, published in Zhurnal Prikladnoi Khimii, 2011, Vol. 84,
No. 7, pp. 1145−1151.
AND INDUSTRIAL ORGANIC CHEMISTRY
Sorption Puriﬁ cation of Saturated Hydrocarbons
to Remove Aromatic Compounds
V. V. Samonin, V. Yu. Nikonova, M. L. Podvyaznikov, and L. V. Grigor’eva
St. Petersburg State Technological Institute (Technical University), St. Petersburg, Russia
Received September 15, 2010
Abstract—Prospects for use of microscopic amounts of fullerenes as a modifying additive for improving the
absorption capacity of conventional adsorbents in both static and dynamic conditions of puriﬁ cation of saturated
hydrocarbons to remove aromatic compounds were examined.
The development of modern technology imposes
increasingly stringent requirements upon the quality
of fuels and lubricants being used, which necessitates
improvement of methods for their puriﬁ cation and
separation into hydrocarbon groups that can be used
to compose high-quality petroleum products by
The issues related to preparation of raw materials
to oxidation are of key importance in manufacture of
synthetic fatty acids. Presence of aromatic hydrocarbons
in raw materials to be oxidized is inadmissible because,
being oxidized, these hydrocarbons are converted to
compounds inhibiting the process [1, 2].
Petroleum products can be dearomatized to a greater
or lesser extent by various methods, e.g., by treatment
with sulfuric acid, hydrogenization, azeotropic and
extractive distillation, separation on adsorbents, etc. The
main dearomatization techniques are puriﬁ cation with
98% sulfuric acid and percolation puriﬁ cation in which
raw materials are passed through an adsorbent bed. It
should be noted that, compared with other methods,
dearomatization of raw materials by the percolation
method is the most efﬁ cient, simple, and convenient
in implementation. Aromatic hydrocarbons cannot be
completely removed with sulfuric acid even upon 2–3-
fold treatment .
The method of dearomatization with adsorbents has a
number of signiﬁ cant advantages over other techniques.
To the most important advantages can be attributed
their high selectivity, ability to free a product being
treated from a very insigniﬁ cant amount of aromatics,
chemical invariability of components of a product being
treated in the course of processing, regenerability of
the dearomatizing agent (adsorbent), and simplicity of
apparatus used for puriﬁ cation. To weak points of the
adsorption dearomatization belongs its lower efﬁ ciency
in treatment of products containing a high percentage of
aromatic hydrocarbons to be removed [4, 5].
The activity of sorbing materials can be raised
by introduction of various additives having a speciﬁ c
electronic structure, such as d-elements and platinum-
group metals, into their composition. As a modifying
agent of this kind serve fullerenes whose introduction
into various materials  leads to a considerable
electron-density redistribution in a material, which
can be in perspective used to intensify the dispersion
interaction of a sorbate with the sorbent and to raise its
The goal of our study was to determine prospects for
use of adsorption methods for puriﬁ cation of saturated
hydrocarbons to remove aromatic compounds and to
examine the possibility of raising the adsorption capacity
of conventional materials by introduction of microscopic
amounts of fullerenes into their composition.