Time filter

Source Type

Surovikin Y.V.,RAS Institute of Hydrocarbons Processing | Syrieva A.V.,RAS Institute of Hydrocarbons Processing | Likholobov V.A.,RAS Institute of Hydrocarbons Processing
2016 Dynamics of Systems, Mechanisms and Machines, Dynamics 2016 | Year: 2016

The development of a new generation of supercapacitors with high electric and energy characteristics based on new active ingredients is an important and useful task. One of the most promising materials for the realization of these objectives is granular nanocomposites made from pyrocarbon (PC) matrix and nanosized globular carbon. The paper presents the results of the study properties of pyrocarbon matrix and defines the conditions which have a significant influence on the formation of its properties. © 2016 IEEE.


Surovikin Y.V.,RAS Institute of Hydrocarbons Processing | Syrieva A.V.,RAS Institute of Hydrocarbons Processing | Shaitanov A.G.,RAS Institute of Hydrocarbons Processing
2016 Dynamics of Systems, Mechanisms and Machines, Dynamics 2016 | Year: 2016

The most promising materials in the development of electro-active material for lithium-ion battery electrodes is the modified carbon black. This paper presents the results of research of carbon black after thermal and thermal oxidative modification by the method of Raman spectroscopy. The spectra and the comparative analysis of the modified samples are listed. © 2016 IEEE.


Timofeeva M.N.,RAS Boreskov Institute of Catalysis | Panchenko V.N.,RAS Boreskov Institute of Catalysis | Gil A.,Public University of Navarra | Doronin V.P.,Russian Academy of Sciences | And 3 more authors.
Applied Catalysis B: Environmental | Year: 2011

A series of Zr,Al-pillared interlayered clays (Zr,Al-PILCs) have been prepared and characterized by X-ray diffraction, elemental analysis, FT-IR and N2-adsorption/desorption analyses, 27Al NMR(MAS), FT-IR spectroscopy using pyridine, PhCN and CDCl3 as probe molecules. It was found that textural and physicochemical properties of Zr,Al-PILCs depend on Zr content in clay. The relationship between the acid-base properties and catalytic performances of Zr,Al-PILCs was revealed in the synthesis of propylene glycol methyl ether from methanol and propylene oxide. The results show that the conversion of propylene oxide and the selectivity to 1-methoxy-2-propanol decrease with increasing the amount of zirconium in Zr,Al-PILCs due to the change in acid-base properties. © 2011 Elsevier B.V.


Bulavchenko O.A.,Novosibirsk State University | Afonasenko T.N.,RAS Institute of Hydrocarbons Processing | Tsyrul'Nikov P.G.,RAS Institute of Hydrocarbons Processing | Tsybulya S.V.,Novosibirsk State University
Applied Catalysis A: General | Year: 2013

Catalytic properties of MnOx/Al2O3 catalysts were studied in the CO oxidation reaction. The catalysts were prepared by co-precipitation and then the product was calcined in Ar or air at temperatures of 700-1200 C. It was found that increase in the calcination temperature to 950-1000 C lead to the growth of catalytic activity for both series, especially for catalysts calcined in air. An increase in the catalytic activity of the catalysts calcined in Ar was related to the formation of Mn 3-xAlxO4 cubic spinel which was stable during specimen cooling in inert atmosphere. It was found that active component in the air-calcined catalysts was formed via decomposition of the high-temperature precursor (cubic spinel Mn3-xAlxO4) followed by the appearance of aggregates consisting of imperfect Mn3O 4+δ oxide and amorphous Mn-Al-O phase. The decomposition was accompanied by the formation of weakly bound oxygen which appears to be active in oxidation reactions. The structure of the active component was directly related to the composition of the high-temperature precursor - the higher the concentration of manganese cations are in the Mn3-xAl xO4 cubic spinel, the more Mn3O4 and weakly bound oxygen appear in the decomposition product. © 2013 Elsevier B.V. All rights reserved.


Timofeeva M.N.,RAS Boreskov Institute of Catalysis | Panchenko V.N.,RAS Boreskov Institute of Catalysis | Gil A.,Public University of Navarra | Chesalov Y.A.,RAS Boreskov Institute of Catalysis | And 2 more authors.
Applied Catalysis B: Environmental | Year: 2011

Al-pillared interlayered clays (Al-PILCs) have been synthesized by the exchange reaction between Na-clay and Al-hydroxypolycation solutions aged for 0.5-14 days and characterized by DRS-UV-vis, XRD, FT-IR and N2-adsorption/desorption analyses, Hammett acidity titration with n-butylamine and FT-IR spectroscopy using PhCN and CDCl3 as probe molecules. It was found that the aging time of Al-hydroxypolycation pillaring solution affects both the textural characteristics and the physicochemical properties of Al-PILCs. Al-PILCs have been tested as catalysts for synthesis of propylene glycol methyl ether from methanol and propylene oxide. Increase in Al content due to the prolonged aging time favors the increase in the activity of Al-PILCs. © 2010 Elsevier B.V.


Gorbunova O.V.,RAS Institute of Hydrocarbons Processing | Baklanova O.N.,RAS Institute of Hydrocarbons Processing | Gulyaeva T.I.,RAS Institute of Hydrocarbons Processing | Trenikhin M.V.,RAS Institute of Hydrocarbons Processing | Drozdov V.A.,RAS Institute of Hydrocarbons Processing
Microporous and Mesoporous Materials | Year: 2014

Porous amorphous silica obtained by the sol-gel method with poly(ethylene glycol) (PEG) as structure directing agent is investigated. In this paper, we use the PEG with molecular weight 400, 1300, 3000, 6000, 20,000, 100,000, 200,000 and vary the concentration of the polymer solution in a wide range. The analysis of nitrogen adsorption-desorption data and transmission electron microscopy shows that depending on the combination of molecular weight and concentration of the PEG solution the microporous and mesoporous silica materials can be obtained. It was determined that using the solution of PEG-400, 1300 independently of the concentration the mesoporous silica is formed. When the diluted and concentrated solutions of PEG-3000, 6000, 20,000, 100,000, 200,000 are used it produces also the mesoporous materials. In the field of transitional concentrations of PEG the microporous silica with fraction of micropores equals 95% is generated. Revealed regularities are generalized and shown on the texture diagram. © 2014 Elsevier Inc. All rights reserved.


Shopin V.M.,RAS Institute of Hydrocarbons Processing
Solid Fuel Chemistry | Year: 2014

The current trends of the development of studies and technologies for the separation of a target product from aerosol flows in the manufacture of carbon black are surveyed. Studies oriented to decreasing material and power consumption in the processes of carbon black production are analyzed. An analysis of aerosol coagulation mechanisms and the dependence of the rate constant of coagulation on the physicochemical properties of dispersed carbon is given. The precipitation of the target product in a cyclone collector is considered. Studies directed toward an improvement in the quality and effectiveness of thermoresistant filtering materials and bag-type filters with their use are analyzed. Some results of the experimental studies of the filtration of a dispersed carbon aerosol in a layer of porous carbon granules are given. © 2014 Allerton Press, Inc.


Doronin V.P.,RAS Institute of Hydrocarbons Processing | Potapenko O.V.,RAS Institute of Hydrocarbons Processing | Lipin P.V.,RAS Institute of Hydrocarbons Processing | Sorokina T.P.,RAS Institute of Hydrocarbons Processing
Fuel | Year: 2013

The effect of vegetable oil unsaturation on the distribution and composition of the products of oil conversion over an equilibrium cracking catalyst was studied. Co-conversion of vacuum gas oil and vegetable oils under catalytic cracking conditions make it possible to increase the yield of gasoline fraction by 10 wt.%. A maximum promoting effect is attained by the addition of 5-10 wt.% vegetable oil. Investigation of joint transformations of π-undecane, tetralin and sunflower oil upon cracking revealed that an increase in the yield of gasoline fraction can be related to the occurrence of hydrogen transfer reactions and manifestation of the competitive sorption effect. © 2012 Elsevier Ltd. All rights reserved.


Krivonos O.I.,RAS Institute of Hydrocarbons Processing | Plaksin G.V.,RAS Institute of Hydrocarbons Processing
Solid Fuel Chemistry | Year: 2015

The main stages of the formation of the porous structure of carbon-mineral materials (PCM) upon the carbonization of sapropels were demonstrated. The structure and physicochemical properties of the obtained materials were studied. © 2015, Allerton Press, Inc.


Sigaeva S.S.,RAS Institute of Hydrocarbons Processing | Likholobov V.A.,RAS Institute of Hydrocarbons Processing | Tsyrul'Nikov P.G.,RAS Institute of Hydrocarbons Processing
Kinetics and Catalysis | Year: 2013

We studied methane pyrolysis of at 750 to 1100 °C on a heat-treated FeCrAl wire heated by electric current both in the absence of oxygen and at CH4: O2 = 15: 1 and 9: 1. The process proceeds in two temperature ranges differing in pyrolysis product selectivity. In the transition region, intensive carbon deposition occurs on the wire surface. The presence of oxygen shifts the methane conversion versus temperature and product selectivity versus temperature curves to higher temperatures. We believe that the existence of two process regions is due to the coking of the catalyst surface. © 2013 Pleiades Publishing, Ltd.

Loading RAS Institute of Hydrocarbons Processing collaborators
Loading RAS Institute of Hydrocarbons Processing collaborators