Russian Journal of Applied Chemistry, 2009, Vol. 82, No. 8, pp. 1435−1441.
Pleiades Publishing, Ltd., 2009.
Original Russian Text
Yu.V. Aniskevich, V.V. Krasnik, Yu.N. Filimonov, 2009, published in Zhurnal Prikladnoi Khimii, 2009, Vol. 82, No. 8, pp. 1335−1341.
AND INDUSTRIAL ORGANIC CHEMISTRY
The technology for manufacture of motor fuels from
natural or associated petroleum gas is economically
and ecologically efﬁ cient. The process of conversion of
hydrocarbon gases to liquid commercial hydrocarbons
(Gas-to-liquids, GTL, technology) includes three main
stages: production of synthesis gas, synthesis of an
intermediate, and manufacture of the ﬁ nal product .
The main difﬁ culty in setting-up such industries consists,
ﬁ rst, in developing a high-output capacity and sufﬁ ciently
low-cost method for production of synthesis gas and,
second, in creating high-efﬁ ciency catalysts necessary
for obtaining the ﬁ nal product.
Each particular chemical technology of catalytic
synthesis has its own requirements to the composition of
the synthesis gas obtained (which differ both in the ratio
of hydrogen and carbon monoxide and in the admissible
admixtures of other substances).
The stage of production of synthesis gas by the
conventional techniques requires more than 50% of
the total investment, and, therefore, the problems of
synthesis-gas production have been the subject of
numerous researches and developments aimed to improve
the existing technologies and create new ones .
An important disadvantage of modern technologies
for production of synthesis gas, based on conversion of
liquid and gaseous hydrocarbons, is that they use catalysts
or pure oxygen. As a result, the operating costs increase,
the installations used become more sophisticated and
expensive, their reliability is deteriorated, and their ﬁ re-
and explosion hazard grows .
The technology suggested for processing hydrocarbon
gases is based on direct partial gas-phase oxidation of
a hydrocarbon gas by atmospheric oxygen: hydrocarbon
gas → oxidation → synthesis gas → intermediate
(methanol, dimethyl ether) → motor fuel . Synthesis
gas is produced in high-temperature reactors (HTRs)
developed on the basis of achievements in the ﬁ eld of
liquid-propellant engines . The high-temperature
reactor is a small-size, highly energetic design in which
synthesis gases of various compositions can be produced
by varying mode parameters. Use of HTRs can provide
a high output capacity in conversion of the starting raw
materials in a single run.
In this technology, synthesis gas can be produced both
from methane and from natural and associated gases,
i.e., the system is undemanding toward raw materials.
In addition, the system requires no expensive catalysts
and use of air instead of pure oxygen not only lowers the
operation costs, but also substantially diminishes the ﬁ re
and explosion hazard of the system upon a slight increase
in its mass. The process suggested for processing of
natural gas into gasoline, with methanol as intermediate
product, can be represented by a block diagram.
The widely presently used Cu–Zn–Al oxide methanol
Choice of Mode Parameters of Partial Gas-Phase Oxidation
of Methane by Atmospheric Oxygen To Obtain Synthesis Gas
of Required Composition
Yu. V. Aniskevich, V. V. Krasnik, and Yu. N. Filimonov
Ustinov Baltic Technical University, St. Petersburg, Russia
Received April 20, 2009
Abstract—Results of theoretical and experimental studies of the partial gas-phase oxidation of methane by
atmospheric oxygen were used to determine the range of main technological parameters providing the maximum
yield of synthesis gas suitable for use in further catalytic synthesis of methanol.