scholarly journals MAGNETO SUSCEPTIBLE ADSORBENTS OBTAINED BY THERMOCHEMICAL ACTIVATION OF HYDROLYTIC LIGNIN WITH IRON(III) HYDROXIDE

2017 ◽  
Vol 11 (2) ◽  
pp. 209-213
Author(s):  
Nikolai Bogdanovich ◽  
◽  
Mikhail Arkhilin ◽  
Anna Menshina ◽  
Lidiy Kuznetsova ◽  
...  
Keyword(s):  
Thermochemical Activation ◽  
Hydrolytic Lignin

Microporous Sorbents Produced by Pyrolysis and Gasification of Hydrolytic Lignin

2008 ◽  
pp. 1509-1516
Author(s):  
G.V Plaksin ◽  
O.N Baklanova ◽  
V.K Duplyakin ◽  
V. A. Drozdov
Keyword(s):  
Hydrolytic Lignin ◽  
Microporous Sorbents

High-Capacity Derivatives Produced from Hydrolytic Lignin as Electrode Materials for Energy Storage and Conversion

2018 ◽  
Vol 386 ◽  
pp. 359-364
Author(s):  
Yury M. Nikolenko ◽  
Denis P. Opra ◽  
Alexander K. Tsvetnikov ◽  
Alexander Yu. Ustinov ◽  
Valery G. Kuryavyi ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Energy Storage ◽  
Electrode Materials ◽  
Electronic Conductivity ◽  
Specific Capacity ◽  
Energy Storage And Conversion ◽  
Operating Voltage ◽  
X Ray ◽  
Thermally Activated ◽  
Hydrolytic Lignin

The hydrolytic lignin derivatives have been prepared via its physical activation (high-temperature heating in vacuum) followed by chemical modification (fluorination). The obtained products were characterized using scanning electron microscopy, X-ray diffraction, transmission electron microscopy, Raman spectroscopy, and X-ray photoelectron spectroscopy. It was found that the graphitized product of thermal activation up to 1000 °C at a low rate of < 2 °C/min under high vacuum shows an enhanced specific surface area (215 m2/g), that makes its potentially useful as sorbent, catalytic substrate or electrode material. To clarify the potentialities of hydrolytic lignin derivatives for energy storage and conversion, the electrochemical system with metallic lithium anode was applied. The galvanostatic discharge of battery at a current density of 100 μA/cm2between 3.0 and 0.5 V shows that the specific capacity of thermally activated derivative is equal to 845 mA·h/g, while the untreated lignin yields only 190 mA·h/g. The improve of the electrochemical performance of product originates from its graphitization, increasing electronic conductivity, and, possibly, enhanced ability to adsorb of oxygen. The fluorination of both the lignin and its thermally activated form results in higher operating voltage of battery, as seems, due to the involvement of fluorine bound to carbon in electrochemical process.

Potential activity of hydrolytic lignin in copolymerization reactions

2009 ◽  
Vol 82 (9) ◽  
pp. 1592-1599 ◽  
Author(s):  
Yu. N. Sazanov ◽  
E. M. Kulikova ◽  
G. N. Fedorova ◽  
E. N. Popova ◽  
L. S. Litvinova ◽  
...  
Keyword(s):  
Hydrolytic Lignin ◽  
Potential Activity

Hydrolytic Lignin: It’s Activated and Fluorinated Forms

2019 ◽  
Vol 806 ◽  
pp. 100-105 ◽  
Author(s):  
Yury M. Nikolenko ◽  
Alexander K. Tsvetnikov ◽  
Alexander Yu. Ustinov ◽  
Vladimir E. Silant'ev ◽  
Valery G. Kuryavyi ◽  
...  
Keyword(s):  
Thermal Activation ◽  
Energy Intensity ◽  
Electronic Conductivity ◽  
High Vacuum ◽  
Electrochemical Process ◽  
Physical Activation ◽  
Operating Voltage ◽  
Thermally Activated ◽  
Hydrolytic Lignin ◽  
Structural Blocks

The hydrolytic lignin (HL) derivatives have been prepared via its physical activation (high-temperature annealing in vacuum) followed by chemical modification (fluorination). It was found that the graphitized product of thermal activation up to 1000 °C at a low temperature gain rate of < 2 °C/min under high vacuum shows an enhanced specific surface area (215 m2/g), that makes it potentially useful as sorbent, catalytic substrate, or electrode material. It was revealed from the experimental data the manufactured graphitized material consists of nanometric structural blocks, possibly nanographites and/or few-layer nanographenes. The edges of graphenes in agglomerates in activated hydrolytic lignin (AHL) have armchair and zigzag shapes. The nontrivial electronic structure of the zigzag edges, along with the electronic conductivity and the ability of AHL to absorb oxygen, can cause an increase in the energy intensity of lithium battery (LB) manufactured using AHL.The carbon-fluorine bond of semi-ionic type was detected in HL and AHL fluorinated in the temperature range of synthesize 60 – 300 oC. The fluorinated forms of both HL and its thermally activated product show increased values of operating voltage due to the participation of fluorine bound to carbon in the electrochemical process.

scholarly journals Peculiarities of Pyrolysis of Hydrolytic Lignin in Dispersed Gas Phase and in Solid State

2017 ◽  
Vol 31 (11) ◽  
pp. 12156-12167 ◽  
Author(s):  
Mohamad Barekati-Goudarzi ◽  
Dorin Boldor ◽  
Cosmin Marculescu ◽  
Lavrent Khachatryan
Keyword(s):  
Solid State ◽  
Gas Phase ◽  
Hydrolytic Lignin

Study the Еfficiency of the Вoiler Вurning Вiofuels and Рeat

2019 ◽  
Vol 23 (3) ◽  
pp. 20-25 ◽  
Author(s):  
V.K. Lyubov ◽  
A.N. Popov ◽  
E.I. Popova
Keyword(s):  
Heat Balance ◽  
Environmental Performance ◽  
Arctic Region ◽  
Solid Particles ◽  
Solid Fuels ◽  
Gaseous Emissions ◽  
Hydrolytic Lignin ◽  
Organization Of Production ◽  
Energy Survey ◽  
The Heat Balance

The results of experimental research thermal and environmental performance of the boiler "Firematic 60" burning pellets, bark, pressed wood sanding dust, granulated peat and sod peat and black pellets of hydrolytic lignin are presented. The research identified the heat balance components of the boiler and gaseous emissions during burning solid fuels. The emissions of solid particles and the content of soot particles are studied. Energy survey found boiler provides high thermal and environmental performance during burning biofuels and granulated peat that should be used for buildings heating; especially in the conditions of North-Arctic region. The organization of production of black pellets of hydrolytic lignin allowed to obtain high-quality fuel from biomass wasted 40–60 years ago.

Development of technology for production and application of graphite from hydrolytic lignin

2015 ◽  
Vol 73 (3) ◽  
pp. 369-375 ◽  
Author(s):  
Olga V. Popova ◽  
Mikhail Yu. Serbinovskiy ◽  
Аnna G. Abramova
Keyword(s):  
Hydrolytic Lignin
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