Superadiabatic heating in combustion chromium in nitrogen

1999 ◽  
Vol 35 (6) ◽  
pp. 645-647 ◽  
Author(s):  
B. Sh. Braverman ◽  
M. Kh. Ziatdinov ◽  
Yu. M. Maksimov
Keyword(s):  
Superadiabatic Heating

scholarly journals Process of Obtaining Chromium Nitride in the Combustion Mode under Conditions of Co-Flow Filtration

Processes ◽  
2020 ◽  
Vol 8 (9) ◽  
pp. 1056
Author(s):  
Nikolay Evseev ◽  
Mansur Ziatdinov ◽  
Vladimir Romandin ◽  
Alexander Zhukov ◽  
Aidos Tolynbekov ◽  
...  
Keyword(s):  
Gas Flow ◽  
Combustion Process ◽  
Combustion Products ◽  
Chromium Nitride ◽  
Gas Flow Rate ◽  
Chromium Powder ◽  
Burning Temperature ◽  
Superadiabatic Heating ◽  
Argon Mixture ◽  
Flow Filtration

In this work, the combustion process of chromium powder in the co-flow filtration mode was studied. The effect of nitrogen-containing gas flow rate on the nitridation of combustion products is shown. The effect of the amount of argon in the nitrogen–argon mixture on the burning rate and the burning temperature of the chromium powder is shown. It was found that an increase in the percentage of argon in the nitrogen–argon mixture can lead to the formation of an inverse combustion wave. The actual burning temperature is higher than adiabatic burning temperature in the co-flow filtration mode, thus the phenomenon of superadiabatic heating is observed. The phase composition of the obtained combustion products was studied. It was shown that the forced filtration mode allows for synthesizing non-stoichiometric Cr2N nitride.

Filtration combustion of a carbon-inert material system in the regime with superadiabatic heating

2008 ◽  
Vol 44 (3) ◽  
pp. 273-280 ◽  
Author(s):  
E. A. Salgansky ◽  
V. M. Kislov ◽  
S. V. Glazov ◽  
A. F. Zholudev ◽  
G. B. Manelis
Keyword(s):  
Filtration Combustion ◽  
Inert Material ◽  
Material System ◽  
Superadiabatic Heating

Mass Transfer of Metal-Containing Products in Filtration Combustion under Superadiabatic Heating Conditions

2005 ◽  
Vol 405 (4-6) ◽  
pp. 249-252 ◽  
Author(s):  
A. S. Rozenberg ◽  
D. B. Lempert ◽  
L. A. Grigoryan ◽  
A. S. Medvedev ◽  
G. B. Manelis
Keyword(s):  
Mass Transfer ◽  
Filtration Combustion ◽  
Superadiabatic Heating

scholarly journals Combustion Synthesis of Chromium Nitrides

Metals ◽  
2019 ◽  
Vol 9 (1) ◽  
pp. 98
Author(s):  
Mansur Ziatdinov ◽  
Zhukov Alexander ◽  
Vladimir Promakhov ◽  
Nikita Schulz
Keyword(s):  
Cocurrent Flow ◽  
Layer By Layer ◽  
Pure Nitrogen ◽  
Chromium Powder ◽  
Specific Flow ◽  
Pressure Filtration ◽  
Chromium Nitrides ◽  
Superadiabatic Heating ◽  
Combustion Wave Propagation ◽  
Regular Patterns

This paper explores different modes of synthesis by combustion of chromium-nitrogen and ferrochromium-nitrogen alloys. The SH-synthesis of chromium nitrides and ferrochromium nitrides was performed. Regular patterns in layer-by-layer and surface modes of Cr combustion in nitrogen were investigated. The mechanism of non-stationary combustion during the synthesis of chromium was investigated. Regular patterns of chromium and ferrochromium combustion in the cocurrent filtration mode were analyzed, and the possibility to intensify the SHS process using the pressure filtration principle was assessed. The process of chromium powder combustion in the cocurrent flow of nitrogen-containing gas in the range of specific flow rates from 20 cm3/s·cm2 was investigated. Pressure filtration intensifies the process of combustion wave propagation in the Cr–N2 system. Here, the combustion rate increases while the degree of nitridation decreases. We discovered superadiabatic heating modes when the reaction zone was blown with pure nitrogen and a nitrogen-argon mixture. The tempering mode that was realized during pressure filtration allows for the uptake of high-temperature single-phase non-stoichiometric phases of Cr2N.

Biomass gasification under combustion conditions with superadiabatic heating

2008 ◽  
Vol 42 (3) ◽  
pp. 135-139 ◽  
Author(s):  
V. M. Kislov ◽  
S. V. Glazov ◽  
N. A. Chervonnaya ◽  
L. I. Patronova ◽  
M. V. Salganskaya ◽  
...  
Keyword(s):  
Biomass Gasification ◽  
Superadiabatic Heating

scholarly journals Formation of Liquid Products at the Filtration Combustion of Solid Fuels

2016 ◽  
Vol 2016 ◽  
pp. 1-7 ◽  
Author(s):  
E. A. Salgansky ◽  
V. M. Kislov ◽  
S. V. Glazov ◽  
M. V. Salganskaya
Keyword(s):  
Filtration Combustion ◽  
Solid Fuels ◽  
Liquid Hydrocarbons ◽  
Additional Energy ◽  
Gaseous Products ◽  
Gasification Process ◽  
Superadiabatic Heating ◽  
Combustible Gas ◽  
Liquid Products ◽  
Combustion Of Solid Fuels

Yields of liquid and gaseous products of the filtration combustion of cellulose, wood, peat, coal, and rubber have been investigated. Experiments have shown that the gasification of solid fuels in the regime with superadiabatic heating yields liquid hydrocarbons with quantity and quality, which are close to those produced using other methods, for example, by pyrolysis. But in this case no additional energy supply is needed to carry out the gasification process. The low calorific combustible gas, which forms in this process, contains a substantial quantity of carbon monoxide and hydrogen, which are components of syngas.

Sign in / Sign up

Export Citation Format

Share Document