Carbon Materials from the Sibunit Family and Methods for Controlling Their Properties
Solid Fuel Chemistry
, E-ISSN: 1934-8029
||CATALYSTS; HYDRODESULFURIZATION; OIL
Plaksin G. V.
Baklanova O. N.
Lavrenov A. V.
Likholobov V. A.
Institute of Hydrocarbons Processing, Siberian Branch, Russian Academy of Sciences, Omsk, 644040 Russia
The methods of regulating the porous structure and properties of carbon materials of the Sibunit
type are considered. The deposition to 10–15 wt % pyrolytic carbon in the pore space of Sibunit makes it pos
sible to regulate pore volume and poresize distributions by decreasing the fraction of micropores and small
mesopores and to enhance the strength characteristics of the support. Heat treatment in an inert atmosphere
in a temperature range of 2200–2600°C imparts a number of unique specific properties to the Sibunit sup
ports, in particular, high resistance to oxidative and electrochemical corrosion, which is comparable with the
resistance of graphite. At the same time, it retains sufficiently high pore structure characteristics and adsorp
tion properties typical of porous carbon materials. The introduction of watersoluble organic compounds
capable of producing microporous carbon upon carbonization at the stage of granulation or the supporting of
organic compounds on Sibunit with the subsequent polymerization and carbonization in the support pores
makes it possible to form micropores with a volume to 0.20–0.25 cm3/g in Sibunit.