56 research outputs found
ΠΠ»ΠΈΡΠ½ΠΈΠ΅ ΡΠ°Π·ΠΌΠ΅ΡΠ° ΡΠ°ΡΡΠΈΡ Π΄ΠΎΠ»ΠΎΠΌΠΈΡΠ° Π½Π° ΠΊΠΈΠ½Π΅ΡΠΈΠΊΡ ΠΏΡΠΎΡΠ΅ΡΡΠ° Π΅Π³ΠΎ ΡΠ΅ΡΠΌΠΈΡΠ΅ΡΠΊΠΎΠ³ΠΎ ΡΠ°Π·Π»ΠΎΠΆΠ΅Π½ΠΈΡ
The results of an experimental study of the thermal decomposition of natural dolomite, carried out on laboratory equipment at constant temperatures of 650 Β°C, 700, 750, 800 and 850 Β°C, are discussed. Particles of Belarusian dolomite weighing 0.58 g, 0.88, 2.3, 2.7, 7.6 and 16.3 g were used as the test samples. An integral equation describing the kinetics of thermal decomposition of natural dolomites of Belarus is presented. It is shown that the reaction rate of thermal decomposition of dolomite depends not only on the temperature regime in the reaction zone, but is also largely determined by the mass of the samples under study. It has been established that the rate constant of thermal decomposition of dolomite in the studied range of sample masses can be determined by the empirical expression identified in the course of this study. The rate constants of thermal decomposition of dolomite particles of various masses have been determined. The values of the rate constants obtained empirically and those calculated taking into account the mass of the samples are compared. It is noted that the developed model is physically justified, and the dependence proposed in the work can be incorporated into existing engineering methods for calculating generator gas purification systems using dolomite as a catalyst and sorbent.ΠΠ±ΡΡΠΆΠ΄Π°ΡΡΡΡ ΡΠ΅Π·ΡΠ»ΡΡΠ°ΡΡ ΡΠΊΡΠΏΠ΅ΡΠΈΠΌΠ΅Π½ΡΠ°Π»ΡΠ½ΠΎΠ³ΠΎ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΡ ΡΠ΅ΡΠΌΠΈΡΠ΅ΡΠΊΠΎΠ³ΠΎ ΡΠ°Π·Π»ΠΎΠΆΠ΅Π½ΠΈΡ ΠΏΡΠΈΡΠΎΠ΄Π½ΠΎΠ³ΠΎ Π΄ΠΎΠ»ΠΎΠΌΠΈΡΠ°, Π²ΡΠΏΠΎΠ»Π½Π΅Π½Π½ΠΎΠ³ΠΎ Π½Π° Π»Π°Π±ΠΎΡΠ°ΡΠΎΡΠ½ΠΎΠΌ ΠΎΠ±ΠΎΡΡΠ΄ΠΎΠ²Π°Π½ΠΈΠΈ ΠΏΡΠΈ ΠΏΠΎΡΡΠΎΡΠ½Π½ΡΡ
ΡΠ΅ΠΌΠΏΠ΅ΡΠ°ΡΡΡΠ°Ρ
650 Β°Π‘, 700, 750, 800 ΠΈ 850 Β°Π‘. Π ΠΊΠ°ΡΠ΅ΡΡΠ²Π΅ ΠΈΡΡΠ»Π΅Π΄ΡΠ΅ΠΌΡΡ
ΠΎΠ±ΡΠ°Π·ΡΠΎΠ² ΠΈΡΠΏΠΎΠ»ΡΠ·ΠΎΠ²Π°Π»ΠΈΡΡ ΡΠ°ΡΡΠΈΡΡ Π±Π΅Π»ΠΎΡΡΡΡΠΊΠΎΠ³ΠΎ Π΄ΠΎΠ»ΠΎΠΌΠΈΡΠ° ΠΌΠ°ΡΡΠΎΠΉ 0,58 Π³, 0,88, 2,3, 2,7, 7,6 ΠΈ 16,3 Π³. ΠΡΠΈΠ²Π΅Π΄Π΅Π½ΠΎ ΡΡΠ°Π²Π½Π΅Π½ΠΈΠ΅, ΠΎΠΏΠΈΡΡΠ²Π°ΡΡΠ΅Π΅ ΠΊΠΈΠ½Π΅ΡΠΈΠΊΡ ΡΠ΅ΡΠΌΠΈΡΠ΅ΡΠΊΠΎΠ³ΠΎ ΡΠ°Π·Π»ΠΎΠΆΠ΅Π½ΠΈΡ ΠΏΡΠΈΡΠΎΠ΄Π½ΡΡ
Π΄ΠΎΠ»ΠΎΠΌΠΈΡΠΎΠ² ΠΠ΅Π»Π°ΡΡΡΠΈ. ΠΠΎΠΊΠ°Π·Π°Π½ΠΎ, ΡΡΠΎ ΡΠΊΠΎΡΠΎΡΡΡ ΡΠ΅Π°ΠΊΡΠΈΠΈ ΡΠ΅ΡΠΌΠΈΡΠ΅ΡΠΊΠΎΠ³ΠΎ ΡΠ°Π·Π»ΠΎΠΆΠ΅Π½ΠΈΡ Π΄ΠΎΠ»ΠΎΠΌΠΈΡΠ° Π·Π°Π²ΠΈΡΠΈΡ Π½Π΅ ΡΠΎΠ»ΡΠΊΠΎ ΠΎΡ ΡΠ΅ΠΌΠΏΠ΅ΡΠ°ΡΡΡΠ½ΠΎΠ³ΠΎ ΡΠ΅ΠΆΠΈΠΌΠ° Π² ΡΠ΅Π°ΠΊΡΠΈΠΎΠ½Π½ΠΎΠΉ Π·ΠΎΠ½Π΅, Π½ΠΎ ΠΈ Π² Π·Π½Π°ΡΠΈΡΠ΅Π»ΡΠ½ΠΎΠΉ ΠΌΠ΅ΡΠ΅ ΠΎΠΏΡΠ΅Π΄Π΅Π»ΡΠ΅ΡΡΡ ΠΌΠ°ΡΡΠΎΠΉ ΠΈΡΡΠ»Π΅Π΄ΡΠ΅ΠΌΡΡ
ΠΎΠ±ΡΠ°Π·ΡΠΎΠ². Π£ΡΡΠ°Π½ΠΎΠ²Π»Π΅Π½ΠΎ, ΡΡΠΎ ΠΊΠΎΠ½ΡΡΠ°Π½ΡΠ° ΡΠΊΠΎΡΠΎΡΡΠΈ ΡΠ΅ΡΠΌΠΈΡΠ΅ΡΠΊΠΎΠ³ΠΎ ΡΠ°Π·Π»ΠΎΠΆΠ΅Π½ΠΈΡ Π΄ΠΎΠ»ΠΎΠΌΠΈΡΠ° Π² ΠΈΡΡΠ»Π΅Π΄ΡΠ΅ΠΌΠΎΠΌ Π΄ΠΈΠ°ΠΏΠ°Π·ΠΎΠ½Π΅ ΠΌΠ°ΡΡ ΠΎΠ±ΡΠ°Π·ΡΠΎΠ² ΠΌΠΎΠΆΠ΅Ρ Π±ΡΡΡ ΡΠ°ΡΡΡΠΈΡΠ°Π½Π° ΠΏΠΎ ΡΠΌΠΏΠΈΡΠΈΡΠ΅ΡΠΊΠΎΠΌΡ Π²ΡΡΠ°ΠΆΠ΅Π½ΠΈΡ, ΠΈΠ΄Π΅Π½ΡΠΈΡΠΈΡΠΈΡΠΎΠ²Π°Π½Π½ΠΎΠΌΡ Π² Ρ
ΠΎΠ΄Π΅ Π½Π°ΡΡΠΎΡΡΠ΅Π³ΠΎ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΡ. ΠΠΏΡΠ΅Π΄Π΅Π»Π΅Π½Ρ ΠΊΠΎΠ½ΡΡΠ°Π½ΡΡ ΡΠΊΠΎΡΠΎΡΡΠΈ ΡΠ΅ΡΠΌΠΈΡΠ΅ΡΠΊΠΎΠ³ΠΎ ΡΠ°Π·Π»ΠΎΠΆΠ΅Π½ΠΈΡ ΡΠ°ΡΡΠΈΡ Π΄ΠΎΠ»ΠΎΠΌΠΈΡΠ° ΡΠ°Π·Π»ΠΈΡΠ½ΠΎΠΉ ΠΌΠ°ΡΡΡ. ΠΡΠΈΠ²Π΅Π΄Π΅Π½ΠΎ ΡΡΠ°Π²Π½Π΅Π½ΠΈΠ΅ Π·Π½Π°ΡΠ΅Π½ΠΈΠΉ ΠΊΠΎΠ½ΡΡΠ°Π½Ρ ΡΠΊΠΎΡΠΎΡΡΠΈ, ΠΏΠΎΠ»ΡΡΠ΅Π½Π½ΡΡ
ΡΠΌΠΏΠΈΡΠΈΡΠ΅ΡΠΊΠΈΠΌ ΠΏΡΡΠ΅ΠΌ ΠΈ ΡΠ°ΡcΡΠΈΡΠ°Π½Π½ΡΡ
Ρ ΡΡΠ΅ΡΠΎΠΌ ΠΌΠ°ΡΡΡ ΠΎΠ±ΡΠ°Π·ΡΠΎΠ². ΠΡΠΌΠ΅ΡΠ΅Π½ΠΎ, ΡΡΠΎ ΡΠ°Π·ΡΠ°Π±ΠΎΡΠ°Π½Π½Π°Ρ ΠΌΠΎΠ΄Π΅Π»Ρ ΡΠ²Π»ΡΠ΅ΡΡΡ ΡΠΈΠ·ΠΈΡΠ΅ΡΠΊΠΈ ΠΎΠ±ΠΎΡΠ½ΠΎΠ²Π°Π½Π½ΠΎΠΉ, Π° ΠΏΡΠ΅Π΄Π»ΠΎΠΆΠ΅Π½Π½Π°Ρ Π² ΡΠ°Π±ΠΎΡΠ΅ Π·Π°Π²ΠΈΡΠΈΠΌΠΎΡΡΡ ΠΌΠΎΠΆΠ΅Ρ Π±ΡΡΡ ΠΈΠ½ΠΊΠΎΡΠΏΠΎΡΠΈΡΠΎΠ²Π°Π½Π° Π² ΡΡΡΠ΅ΡΡΠ²ΡΡΡΠΈΠ΅ ΠΈΠ½ΠΆΠ΅Π½Π΅ΡΠ½ΡΠ΅ ΠΌΠ΅ΡΠΎΠ΄ΠΈΠΊΠΈ ΡΠ°ΡΡΠ΅ΡΠΎΠ² ΡΠΈΡΡΠ΅ΠΌ ΠΎΡΠΈΡΡΠΊΠΈ Π³Π΅Π½Π΅ΡΠ°ΡΠΎΡΠ½ΡΡ
Π³Π°Π·ΠΎΠ², ΠΈΡΠΏΠΎΠ»ΡΠ·ΡΡΡΠΈΡ
Π΄ΠΎΠ»ΠΎΠΌΠΈΡ Π² ΠΊΠ°ΡΠ΅ΡΡΠ²Π΅ ΠΊΠ°ΡΠ°Π»ΠΈΠ·Π°ΡΠΎΡΠ° ΠΈ ΡΠΎΡΠ±Π΅Π½ΡΠ°
ΠΠΊΡΠΏΠ΅ΡΠΈΠΌΠ΅Π½ΡΠ°Π»ΡΠ½ΠΎΠ΅ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΠ΅ ΠΊΠΈΠ½Π΅ΡΠΈΠΊΠΈ ΡΠ΅ΡΠΌΠΈΡΠ΅ΡΠΊΠΎΠ³ΠΎ ΡΠ°Π·Π»ΠΎΠΆΠ΅Π½ΠΈΡ Π±Π΅Π»ΠΎΡΡΡΡΠΊΠΈΡ Π΄ΠΎΠ»ΠΎΠΌΠΈΡΠΎΠ²
Results of the experimental study of the kinetics of thermal decomposition of natural Belarusian dolomites are discussed. Π kinetic equation of this process in the conditions of the performed experiments is determined. The energy activation and pre-exponential factor of the Arrhenius equation corresponding to the established kinetic equation are determined.ΠΠ±ΡΡΠΆΠ΄Π°ΡΡΡΡ ΡΠ΅Π·ΡΠ»ΡΡΠ°ΡΡ ΡΠΊΡΠΏΠ΅ΡΠΈΠΌΠ΅Π½ΡΠ°Π»ΡΠ½ΡΡ
ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΠΉ ΠΊΠΈΠ½Π΅ΡΠΈΠΊΠΈ ΡΠ΅ΡΠΌΠΈΡΠ΅ΡΠΊΠΎΠ³ΠΎ ΡΠ°Π·Π»ΠΎΠΆΠ΅Π½ΠΈΡ ΠΏΡΠΈΡΠΎΠ΄Π½ΡΡ
Π΄ΠΎΠ»ΠΎΠΌΠΈΡΠΎΠ² ΠΠ΅Π»Π°ΡΡΡΠΈ. ΠΠΏΡΠ΅Π΄Π΅Π»Π΅Π½ΠΎ ΠΊΠΈΠ½Π΅ΡΠΈΡΠ΅ΡΠΊΠΎΠ΅ ΡΡΠ°Π²Π½Π΅Π½ΠΈΠ΅, ΠΎΠΏΠΈΡΡΠ²Π°ΡΡΠ΅Π΅ ΠΏΡΠΎΡΠ΅ΡΡ ΡΠ΅ΡΠΌΠΈΡΠ΅ΡΠΊΠΎΠ³ΠΎ ΡΠ°Π·Π»ΠΎΠΆΠ΅Π½ΠΈΡ Π² ΡΡΠ»ΠΎΠ²ΠΈΡΡ
ΠΎΠΏΡΡΠΎΠ². ΠΠΏΡΠ΅Π΄Π΅Π»Π΅Π½Ρ ΡΠ½Π΅ΡΠ³ΠΈΡ Π°ΠΊΡΠΈΠ²Π°ΡΠΈΠΈ ΠΈ ΠΏΡΠ΅Π΄ΡΠΊΡΠΏΠΎΠ½Π΅Π½ΡΠΈΠ°Π»ΡΠ½ΡΠΉ ΡΠ°ΠΊΡΠΎΡ Π°ΡΡΠ΅Π½ΠΈΡΡΠΎΠ²ΡΠΊΠΎΠΉ Π·Π°Π²ΠΈΡΠΈΠΌΠΎΡΡΠΈ, ΡΠΎΠΎΡΠ²Π΅ΡΡΡΠ²ΡΡΡΠΈΠ΅ ΡΡΡΠ°Π½ΠΎΠ²Π»Π΅Π½Π½ΠΎΠΌΡ ΠΊΠΈΠ½Π΅ΡΠΈΡΠ΅ΡΠΊΠΎΠΌΡ ΡΡΠ°Π²Π½Π΅Π½ΠΈΡ
Π Π°ΡΡΠ΅ΡΠ½ΠΎΠ΅ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΠ΅ Π²ΡΡ ΠΎΠ΄Π° ΡΠ²Π΅ΡΠ΄ΡΡ ΠΏΡΠΎΠ΄ΡΠΊΡΠΎΠ² ΠΏΠΈΡΠΎΠ»ΠΈΠ·Π° Π΄ΡΠ΅Π²Π΅ΡΠΈΠ½Ρ ΠΏΡΠΈ ΠΏΠΎΠ²ΡΡΠ΅Π½Π½ΠΎΠΌ Π΄Π°Π²Π»Π΅Π½ΠΈΠΈ
The kinetic model of wood pyrolysis under pressure is discussed in the present paper taking into account the diffusion of the resulting gas-phase products (i.e. heavy hydrocarbons) and their decomposition reactions. This model is based on a simplified mechanism of wood pyrolysis, including two parallel chemical reactions, viz. the primary decomposition reaction of Β wood biomass with the formation of solid and gaseous components and the thermal decomposition reaction in the biomass pores of hydrocarbons formed in the primary process. The model takes into account the diffusion processes of the primary pyrolysis products from the resulting pores and thermal decomposition in the pores of these products. Based on the developed model, a computer program for calculating the main parameters of the pyrolysis process under pressure was created and the mass yield of solid pyrolysis products under various conditions was calculated. The calculation took into account the main parameters that affect the yield of solid wood biomass products, viz. temperature and pyrolysis pressure, particle sizes, porosity, etc. The calculations demonstrated that the increase of the pressure at which the pyrolysis of wood biomass is carried out causes an increase of the formation of the amount of solid products, which corresponds to the available experimental data. It was established that at a pressure of 1 atm when a sample size is of 0.025 m, the maximum yield of solid products is observed at the temperature of 600 Β°C. As the pressure increases the maximum yield increases, while the temperature at which the maximum is reached decreases. So, at a pressure of 10 atm when a particle size is of 0.025 m, the maximum yield of solid products is observed at the temperature of about 500 Β°C, and it is higher than that at 1 atm by 1.18 times. It was also determined that the temperature of the maximum yield of charcoal decreases with increasing sizes of pyrolyzable samples. Thus, when a sample size is of 0.5 m, this temperature is about 400 Β°C at 10 atm.. Π ΡΡΠ°ΡΡΠ΅ ΠΏΡΠ΅Π΄ΡΡΠ°Π²Π»Π΅Π½Π° ΠΊΠΈΠ½Π΅ΡΠΈΡΠ΅ΡΠΊΠ°Ρ ΠΌΠΎΠ΄Π΅Π»Ρ ΠΏΠΈΡΠΎΠ»ΠΈΠ·Π° Π΄ΡΠ΅Π²Π΅ΡΠΈΠ½Ρ ΠΏΠΎΠ΄ Π΄Π°Π²Π»Π΅Π½ΠΈΠ΅ΠΌ Ρ ΡΡΠ΅ΡΠΎΠΌ Π΄ΠΈΡΡΡΠ·ΠΈΠΈ ΠΎΠ±ΡΠ°Π·ΡΡΡΠΈΡ
ΡΡ Π³Π°Π·ΠΎΡΠ°Π·Π½ΡΡ
ΠΏΡΠΎΠ΄ΡΠΊΡΠΎΠ² (ΡΡΠΆΠ΅Π»ΡΡ
ΡΠ³Π»Π΅Π²ΠΎΠ΄ΠΎΡΠΎΠ΄ΠΎΠ²) ΠΈ ΡΠ΅Π°ΠΊΡΠΈΠΉ ΠΈΡ
ΡΠ°Π·Π»ΠΎΠΆΠ΅Π½ΠΈΡ. Π ΠΎΡΠ½ΠΎΠ²Ρ ΠΌΠΎΠ΄Π΅Π»ΠΈ ΠΏΠΎΠ»ΠΎΠΆΠ΅Π½ ΡΠΏΡΠΎΡΠ΅Π½Π½ΡΠΉ ΠΌΠ΅Ρ
Π°Π½ΠΈΠ·ΠΌ ΠΏΠΈΡΠΎΠ»ΠΈΠ·Π° Π΄ΡΠ΅Π²Π΅ΡΠΈΠ½Ρ, Π²ΠΊΠ»ΡΡΠ°ΡΡΠΈΠΉ Π΄Π²Π΅ ΠΏΠΎΡΠ»Π΅Π΄ΠΎΠ²Π°ΡΠ΅Π»ΡΠ½ΡΠ΅ Ρ
ΠΈΠΌΠΈΡΠ΅ΡΠΊΠΈΠ΅ ΡΠ΅Π°ΠΊΡΠΈΠΈ: ΠΏΠ΅ΡΠ²ΠΈΡΠ½ΡΡ ΡΠ΅Π°ΠΊΡΠΈΡ ΡΠ°Π·Π»ΠΎΠΆΠ΅Π½ΠΈΡ Π΄ΡΠ΅Π²Π΅ΡΠ½ΠΎΠΉ Π±ΠΈΠΎΠΌΠ°ΡΡΡ Ρ ΠΎΠ±ΡΠ°Π·ΠΎΠ²Π°Π½ΠΈΠ΅ΠΌ ΡΠ²Π΅ΡΠ΄ΡΡ
ΠΈ Π³Π°Π·ΠΎΠΎΠ±ΡΠ°Π·Π½ΡΡ
ΠΊΠΎΠΌΠΏΠΎΠ½Π΅Π½ΡΠΎΠ² ΠΈ ΡΠ΅Π°ΠΊΡΠΈΡ ΡΠ΅ΡΠΌΠΈΡΠ΅ΡΠΊΠΎΠ³ΠΎ ΡΠ°Π·Π»ΠΎΠΆΠ΅Π½ΠΈΡ Π² ΠΏΠΎΡΠ°Ρ
Π±ΠΈΠΎΠΌΠ°ΡΡΡ ΡΠ³Π»Π΅Π²ΠΎΠ΄ΠΎΡΠΎΠ΄ΠΎΠ², ΠΎΠ±ΡΠ°Π·ΠΎΠ²Π°Π²ΡΠΈΡ
ΡΡ Π² ΠΏΠ΅ΡΠ²ΠΈΡΠ½ΠΎΠΌ ΠΏΡΠΎΡΠ΅ΡΡΠ΅. ΠΠΎΠ΄Π΅Π»Ρ ΡΡΠΈΡΡΠ²Π°Π΅Ρ Π΄ΠΈΡΡΡΠ·ΠΈΡ ΠΏΠ΅ΡΠ²ΠΈΡΠ½ΡΡ
ΠΏΡΠΎΠ΄ΡΠΊΡΠΎΠ² ΠΏΠΈΡΠΎΠ»ΠΈΠ·Π° ΠΈΠ· ΠΎΠ±ΡΠ°Π·ΠΎΠ²Π°Π²ΡΠΈΡ
ΡΡ ΠΏΠΎΡ ΠΈ ΡΠ΅ΡΠΌΠΈΡΠ΅ΡΠΊΠΎΠ΅ ΡΠ°Π·Π»ΠΎΠΆΠ΅Π½ΠΈΠ΅ ΠΈΡ
Π² ΠΏΠΎΡΠ°Ρ
. ΠΠ° ΠΎΡΠ½ΠΎΠ²Π°Π½ΠΈΠΈ ΡΠ°Π·ΡΠ°Π±ΠΎΡΠ°Π½Π½ΠΎΠΉ ΠΌΠΎΠ΄Π΅Π»ΠΈ ΡΠΎΠ·Π΄Π°Π½Π° ΠΊΠΎΠΌΠΏΡΡΡΠ΅ΡΠ½Π°Ρ ΠΏΡΠΎΠ³ΡΠ°ΠΌΠΌΠ° ΡΠ°ΡΡΠ΅ΡΠ° ΠΎΡΠ½ΠΎΠ²Π½ΡΡ
ΠΏΠ°ΡΠ°ΠΌΠ΅ΡΡΠΎΠ² ΠΏΡΠΎΡΠ΅ΡΡΠ° ΠΏΠΈΡΠΎΠ»ΠΈΠ·Π° ΠΏΠΎΠ΄ Π΄Π°Π²Π»Π΅Π½ΠΈΠ΅ΠΌ, ΠΏΡΠΎΠ²Π΅Π΄Π΅Π½Ρ Π²ΡΡΠΈΡΠ»Π΅Π½ΠΈΡ ΠΌΠ°ΡΡΠΎΠ²ΠΎΠ³ΠΎ Π²ΡΡ
ΠΎΠ΄Π° ΡΠ²Π΅ΡΠ΄ΡΡ
ΠΏΡΠΎΠ΄ΡΠΊΡΠΎΠ² ΠΏΠΈΡΠΎΠ»ΠΈΠ·Π° Π² ΡΠ°Π·Π»ΠΈΡΠ½ΡΡ
ΡΡΠ»ΠΎΠ²ΠΈΡΡ
. ΠΡΠΈ ΡΠ°ΡΡΠ΅ΡΠ΅ ΡΡΠΈΡΡΠ²Π°Π»ΠΈΡΡ ΠΎΡΠ½ΠΎΠ²Π½ΡΠ΅ ΠΏΠ°ΡΠ°ΠΌΠ΅ΡΡΡ, Π²Π»ΠΈΡΡΡΠΈΠ΅ Π½Π° Π²ΡΡ
ΠΎΠ΄ ΡΠ²Π΅ΡΠ΄ΡΡ
ΠΏΡΠΎΠ΄ΡΠΊΡΠΎΠ² Π΄ΡΠ΅Π²Π΅ΡΠ½ΠΎΠΉ Π±ΠΈΠΎΠΌΠ°ΡΡΡ: ΡΠ΅ΠΌΠΏΠ΅ΡΠ°ΡΡΡΠ° ΠΈ Π΄Π°Π²Π»Π΅Π½ΠΈΠ΅ ΠΏΠΈΡΠΎΠ»ΠΈΠ·Π°, ΡΠ°Π·ΠΌΠ΅ΡΡ ΡΠ°ΡΡΠΈΡ, ΠΏΠΎΡΠΈΡΡΠΎΡΡΡ ΠΈ Π΄Ρ. Π£ΡΡΠ°Π½ΠΎΠ²Π»Π΅Π½ΠΎ, ΡΡΠΎ ΠΏΠΎΠ²ΡΡΠ΅Π½ΠΈΠ΅ Π΄Π°Π²Π»Π΅Π½ΠΈΡ, ΠΏΡΠΈ ΠΊΠΎΡΠΎΡΠΎΠΌ ΠΎΡΡΡΠ΅ΡΡΠ²Π»ΡΠ΅ΡΡΡ ΠΏΠΈΡΠΎΠ»ΠΈΠ· Π΄ΡΠ΅Π²Π΅ΡΠ½ΠΎΠΉ Π±ΠΈΠΎΠΌΠ°ΡΡΡ, ΠΏΡΠΈΠ²ΠΎΠ΄ΠΈΡ ΠΊ ΡΠ²Π΅Π»ΠΈΡΠ΅Π½ΠΈΡ ΠΎΠ±ΡΠ°Π·ΠΎΠ²Π°Π½ΠΈΡ ΠΊΠΎΠ»ΠΈΡΠ΅ΡΡΠ²Π° ΡΠ²Π΅ΡΠ΄ΡΡ
ΠΏΡΠΎΠ΄ΡΠΊΡΠΎΠ², ΡΡΠΎ ΡΠΎΠΎΡΠ²Π΅ΡΡΡΠ²ΠΎΠ²Π°Π»ΠΎ ΡΠΊΡΠΏΠ΅ΡΠΈΠΌΠ΅Π½ΡΠ°Π»ΡΠ½ΡΠΌ Π΄Π°Π½Π½ΡΠΌ. ΠΡΠΈ Π΄Π°Π²Π»Π΅Π½ΠΈΠΈ 1 Π°ΡΠΌ ΠΈ ΡΠ°Π·ΠΌΠ΅ΡΠ΅ ΡΠ°ΡΡΠΈΡΡ 0,025 ΠΌ ΠΌΠ°ΠΊΡΠΈΠΌΠ°Π»ΡΠ½ΡΠΉ Π²ΡΡ
ΠΎΠ΄ ΡΠ²Π΅ΡΠ΄ΡΡ
ΠΏΡΠΎΠ΄ΡΠΊΡΠΎΠ² Π½Π°Π±Π»ΡΠ΄Π°Π΅ΡΡΡ ΠΏΡΠΈ ΡΠ΅ΠΌΠΏΠ΅ΡΠ°ΡΡΡΠ΅ 600 Β°Π‘. Π‘ ΡΠΎΡΡΠΎΠΌ Π΄Π°Π²Π»Π΅Π½ΠΈΡ Π·Π½Π°ΡΠ΅Π½ΠΈΠ΅ ΠΌΠ°ΠΊΡΠΈΠΌΠ°Π»ΡΠ½ΠΎΠ³ΠΎ Π²ΡΡ
ΠΎΠ΄Π° Π²ΠΎΠ·ΡΠ°ΡΡΠ°Π΅Ρ, ΠΏΡΠΈ ΡΡΠΎΠΌ ΡΠ΅ΠΌΠΏΠ΅ΡΠ°ΡΡΡΠ°, ΠΏΡΠΈ ΠΊΠΎΡΠΎΡΠΎΠΉ Π΄ΠΎΡΡΠΈΠ³Π°Π΅ΡΡΡ ΠΌΠ°ΠΊΡΠΈΠΌΡΠΌ, ΡΠ½ΠΈΠΆΠ°Π΅ΡΡΡ. ΠΡΠΈ Π΄Π°Π²Π»Π΅Π½ΠΈΠΈ 10 Π°ΡΠΌ ΠΈ ΡΠ°Π·ΠΌΠ΅ΡΠ΅ ΡΠ°ΡΡΠΈΡΡ 0,025 ΠΌ ΠΌΠ°ΠΊΡΠΈΠΌΠ°Π»ΡΠ½ΡΠΉ Π²ΡΡ
ΠΎΠ΄ ΡΠ²Π΅ΡΠ΄ΡΡ
ΠΏΡΠΎΠ΄ΡΠΊΡΠΎΠ² Π½Π°Π±Π»ΡΠ΄Π°Π΅ΡΡΡ ΠΏΡΠΈ ΡΠ΅ΠΌΠΏΠ΅ΡΠ°ΡΡΡΠ΅ ΠΎΠΊΠΎΠ»ΠΎ 500 Β°Π‘ β Π² 1,18 ΡΠ°Π·Π° Π±ΠΎΠ»ΡΡΠ΅, ΡΠ΅ΠΌ ΠΏΡΠΈ 1 Π°ΡΠΌ. ΠΡΠΌΠ΅ΡΠ΅Π½ΠΎ, ΡΡΠΎ ΡΠ΅ΠΌΠΏΠ΅ΡΠ°ΡΡΡΠ° ΠΌΠ°ΠΊΡΠΈΠΌΠ°Π»ΡΠ½ΠΎΠ³ΠΎ Π²ΡΡ
ΠΎΠ΄Π° Π΄ΡΠ΅Π²Π΅ΡΠ½ΠΎΠ³ΠΎ ΡΠ³Π»Ρ ΡΠ½ΠΈΠΆΠ°Π΅ΡΡΡ Ρ ΡΠ²Π΅Π»ΠΈΡΠ΅Π½ΠΈΠ΅ΠΌ ΡΠ°Π·ΠΌΠ΅ΡΠΎΠ² ΠΏΠΈΡΠΎΠ»ΠΈΠ·ΡΠ΅ΠΌΡΡ
ΡΠ°ΡΡΠΈΡ. Π’Π°ΠΊ, ΠΏΡΠΈ ΡΠ°Π·ΠΌΠ΅ΡΠ΅ ΡΠ°ΡΡΠΈΡΡ 0,5 ΠΌ ΡΡΠ° ΡΠ΅ΠΌΠΏΠ΅ΡΠ°ΡΡΡΠ° ΡΠΎΡΡΠ°Π²Π»ΡΠ΅Ρ ΠΏΠΎΡΡΠ΄ΠΊΠ° 400 Β°Π‘ ΠΏΡΠΈ 10 Π°ΡΠΌ
ΠΠ‘Π‘ΠΠΠΠΠΠΠΠΠ ΠΠΠΠΠ’ΠΠΠ Π’ΠΠ ΠΠΠ§ΠΠ‘ΠΠΠΠ Π ΠΠΠΠΠΠΠΠΠ― ΠΠΠ ΠΠΠΠΠΠΠ Π‘ΠΠΠΠ«
The results of an experimental study of the thermal decomposition of tar formed in sawdust pyrolysis are discussed. The study was performed under static isothermal conditions at temperatures 500, 600, 700 and 850Β°C using a laboratory reactor.The reactor is equipped with an electrical heater, which allows heating of the studied tar samples up to 1273Β Β°C. The reactor consists of a reaction chamber made as a stainless steel cylinder with a diameter of 2 cm and a height of 10 cm.The temperature in the reaction chamber was recorded using a thermocouple and a temperature meter-controller Β«Pine-002Β», providing the measurement of temperatures up to 1273 Β°C with the accuracy of Β± 0,01Β Β°C.Samples of the tar produced at the pyrolysis of sawdust at 450Β Β°C were installed into a quartz vessel and kept in the reaction chamber until they reached constant weight. This required about 60 minutes at 500Β Β°C and about 5 minutes at 850Β°C and is a result of a homogeneous decomposition of tar. The initial weight of tar samples was about 1.5 gram. The change in their weights was determined at regular time intervals using the Stoll electronic balance with a relative error of 2%.On the basis of the performed studies it was found that the apparent activation energy of a homogeneous decomposition of tar is equal to approximately 63.1 kJ/mol.It was found as well that the rate of tar decomposition increased when samples of natural Belarusian dolomites were placed into the reaction zone . This increase is due to the occurrence of a heterogeneous catalytic reaction of tar decomposition. The apparent activation energy of this process was determined to be equal to 57.2 kJ /mol which is consistent with estimations of other researchers.The conclusion about the prospects of natural dolomite Belarus as catalysts of thermal decomposition of heavy hydrocarbons generated during the thermochemical conversion of biomass has been drawn on the basis of the established results.ΠΠ±ΡΡΠΆΠ΄Π°ΡΡΡΡ ΡΠ΅Π·ΡΠ»ΡΡΠ°ΡΡ ΡΠΊΡΠΏΠ΅ΡΠΈΠΌΠ΅Π½ΡΠ°Π»ΡΠ½ΠΎΠ³ΠΎ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΡ ΡΠ΅ΡΠΌΠΈΡΠ΅ΡΠΊΠΎΠ³ΠΎ ΡΠ°Π·Π»ΠΎΠΆΠ΅Π½ΠΈΡ ΡΠΌΠΎΠ»Ρ, ΠΎΠ±ΡΠ°Π·ΠΎΠ²Π°Π²ΡΠ΅ΠΉΡΡ Π² ΠΏΡΠΎΡΠ΅ΡΡΠ΅ ΠΏΠΈΡΠΎΠ»ΠΈΠ·Π° Π΄ΡΠ΅Π²Π΅ΡΠ½ΡΡ
ΠΎΠΏΠΈΠ»ΠΎΠΊ. ΠΠΏΡΡΡ ΠΏΠΎ ΡΠ°Π·Π»ΠΎΠΆΠ΅Π½ΠΈΡ ΡΠΌΠΎΠ»Ρ Π²ΡΠΏΠΎΠ»Π½Π΅Π½Ρ Π² ΠΈΠ·ΠΎΡΠ΅ΡΠΌΠΈΡΠ΅ΡΠΊΠΈΡ
ΡΡΠ»ΠΎΠ²ΠΈΡΡ
Π½Π° Π»Π°Π±ΠΎΡΠ°ΡΠΎΡΠ½ΠΎΠΉ ΡΡΡΠ°Π½ΠΎΠ²ΠΊΠ΅ ΠΏΡΠΈ 500, 600, 700 ΠΈ 850 Β°Π‘. ΠΠΏΡΠ΅Π΄Π΅Π»Π΅Π½Ρ ΡΠΊΠΎΡΠΎΡΡΡ Π³ΠΎΠΌΠΎΠ³Π΅Π½Π½ΠΎΠ³ΠΎ ΠΏΡΠΎΡΠ΅ΡΡΠ° ΡΠ΅ΡΠΌΠΈΡΠ΅ΡΠΊΠΎΠ³ΠΎ ΡΠ°Π·Π»ΠΎΠΆΠ΅Π½ΠΈΡ ΡΠΌΠΎΠ»Ρ ΠΈ ΠΏΡΠ΅Π΄Π΅Π»ΡΠ½ΡΠ΅ ΡΡΠ΅ΠΏΠ΅Π½ΠΈ ΡΠ°Π·Π»ΠΎΠΆΠ΅Π½ΠΈΡ. ΠΠ½Π΅ΡΠ³ΠΈΡ Π°ΠΊΡΠΈΠ²Π°ΡΠΈΠΈ Π³ΠΎΠΌΠΎΠ³Π΅Π½Π½ΠΎΠ³ΠΎ ΠΏΡΠΎΡΠ΅ΡΡΠ° ΠΏΠΎ Π΄Π°Π½Π½ΡΠΌ Π½Π°ΡΡΠΎΡΡΠ΅ΠΉ ΡΠ°Π±ΠΎΡΡ ΡΠΎΡΡΠ°Π²ΠΈΠ»Π° 63,1 ΠΊΠΠΆ/ΠΌΠΎΠ»Ρ. Π£ΡΡΠ°Π½ΠΎΠ²Π»Π΅Π½ΠΎ, ΡΡΠΎ ΡΠΊΠΎΡΠΎΡΡΡ ΡΠ΅ΡΠΌΠΈΡΠ΅ΡΠΊΠΎΠ³ΠΎ ΡΠ°Π·Π»ΠΎΠΆΠ΅Π½ΠΈΡ ΡΠΌΠΎΠ»Ρ ΠΏΠΎΠ²ΡΡΠ°Π΅ΡΡΡ Π² ΡΠ»ΡΡΠ°Π΅ Π²Π½Π΅ΡΠ΅Π½ΠΈΡ Π² ΡΠ΅Π°ΠΊΡΠΈΠΎΠ½Π½ΡΡ Π·ΠΎΠ½Ρ ΠΎΠ±ΡΠ°Π·ΡΠΎΠ² ΠΏΡΠΈΡΠΎΠ΄Π½ΡΡ
Π΄ΠΎΠ»ΠΎΠΌΠΈΡΠΎΠ² ΠΠ΅Π»Π°ΡΡΡΠΈ. ΠΡΠΎ ΠΎΠ±ΡΡΠ»ΠΎΠ²Π»Π΅Π½ΠΎ ΠΏΡΠΎΡΠ΅ΠΊΠ°Π½ΠΈΠ΅ΠΌ Π³Π΅ΡΠ΅ΡΠΎΠ³Π΅Π½Π½ΠΎΠΉ ΠΊΠ°ΡΠ°Π»ΠΈΡΠΈΡΠ΅ΡΠΊΠΎΠΉ ΡΠ΅Π°ΠΊΡΠΈΠΈ ΡΠ°Π·Π»ΠΎΠΆΠ΅Π½ΠΈΡ ΡΠΌΠΎΠ»Ρ. ΠΠ°ΠΆΡΡΠ°ΡΡΡ ΡΠ½Π΅ΡΠ³ΠΈΡ Π°ΠΊΡΠΈΠ²Π°ΡΠΈΠΈ Π΄Π°Π½Π½ΠΎΠ³ΠΎ ΠΏΡΠΎΡΠ΅ΡΡΠ° ΡΠΎΡΡΠ°Π²ΠΈΠ»Π° 57,2 ΠΊΠΠΆ/ΠΌΠΎΠ»Ρ, ΡΡΠΎ ΡΠΎΠ³Π»Π°ΡΡΠ΅ΡΡΡ Ρ ΠΎΡΠ΅Π½ΠΊΠ°ΠΌΠΈ Π΄ΡΡΠ³ΠΈΡ
ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°ΡΠ΅Π»Π΅ΠΉ. Π‘Π΄Π΅Π»Π°Π½ Π²ΡΠ²ΠΎΠ΄ ΠΎ ΠΏΠ΅ΡΡΠΏΠ΅ΠΊΡΠΈΠ²Π½ΠΎΡΡΠΈ ΠΏΡΠΈΡΠΎΠ΄Π½ΡΡ
Π΄ΠΎΠ»ΠΎΠΌΠΈΡΠΎΠ² ΠΠ΅Π»Π°ΡΡΡΠΈ Π² ΠΊΠ°ΡΠ΅ΡΡΠ²Π΅ ΠΊΠ°ΡΠ°Π»ΠΈΠ·Π°ΡΠΎΡΠΎΠ² ΡΠ΅ΡΠΌΠΈΡΠ΅ΡΠΊΠΎΠ³ΠΎ ΡΠ°Π·Π»ΠΎΠΆΠ΅Π½ΠΈΡ ΡΡΠΆΠ΅Π»ΡΡ
ΡΠ³Π»Π΅Π²ΠΎΠ΄ΠΎΡΠΎΠ΄ΠΎΠ², ΠΎΠ±ΡΠ°Π·ΡΡΡΠΈΡ
ΡΡ Π² ΠΏΡΠΎΡΠ΅ΡΡΠ°Ρ
ΡΠ΅ΡΠΌΠΎΡ
ΠΈΠΌΠΈΡΠ΅ΡΠΊΠΎΠΉ ΠΊΠΎΠ½Π²Π΅ΡΡΠΈΠΈ Π±ΠΈΠΎΠΌΠ°ΡΡΡ
ΠΠ»ΠΈΡΠ½ΠΈΠ΅ Π΄Π°Π²Π»Π΅Π½ΠΈΡ Π³Π°Π·ΠΎΠ²ΠΎΠΉ ΡΡΠ΅Π΄Ρ Π½Π° ΠΎΠ±ΡΠ°Π·ΠΎΠ²Π°Π½ΠΈΠ΅ Π΄ΡΠ΅Π²Π΅ΡΠ½ΠΎΠ³ΠΎ ΡΠ³Π»Ρ Π² ΠΏΡΠΎΡΠ΅ΡΡΠ΅ ΠΏΠΈΡΠΎΠ»ΠΈΠ·Π° ΡΠ°ΡΡΠΈΡΠ΅Π»ΡΠ½ΠΎΠΉ Π±ΠΈΠΎΠΌΠ°ΡΡΡ
The article discusses the results of an experimental study of the effect of pressure on the formation of charcoal during the pyrolysis of wood, carried out on a laboratory bench at pressures of 1, 3, 5, 7 atm and a temperature of 400 Β°C. Birch wood in the form of wood chips with a particle size of 17Γ§8Γ§6 mm was used as feedstock. Its moisture content was 14.2 % by weight, its density was 506.4 kg/m3 , and its ash content was 0.23 % by weight. It was found that an increase in pressure from 1 atm to 7 atm leads to an increase in the yield of charcoal from about 25 % weight. up to about 32 % weight. The carbon content in this case increases from 89.1 % by weight to 96.4 % by weight. The work also experimentally investigated the effect of artificial deterioration of the conditions for the exit of volatile pyrolysis components from the reaction zone on the formation of charcoal and carbon content. The data obtained suggest that the deterioration of the exit conditions of volatile components from the reaction zone leads to their decomposition with the formation of carbon deposited in the pores of the pyrolyzable material and on its outer surface. Experimental data are also presented showing that components of the pyrolysis tar decompose in the presence of charcoal with the deposition of the formed carbon on its surface. The presence of such process is indicated by the difference in masses of identical charcoal samples studied at a temperature of 600 Β°C in the absence and presence of pyrolysis tar. The final mass of the sample, investigated in the presence of pyrolysis resin, as established in the work, exceeds the mass of the sample, studied in its absence. These results provide indirect evidence of the correctness of the assumption about the decomposition of the pyrolysis components in the pores and on the surface of the pyrolyzable material by a delay in the release of the pyrolysis components from the reaction zone. The results of this study are of interest to specialists developing pyrolysis equipment.ΠΡΠΈΠ²ΠΎΠ΄ΡΡΡΡ ΡΠ΅Π·ΡΠ»ΡΡΠ°ΡΡ ΡΠΊΡΠΏΠ΅ΡΠΈΠΌΠ΅Π½ΡΠ°Π»ΡΠ½ΠΎΠ³ΠΎ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΡ Π²Π»ΠΈΡΠ½ΠΈΡ Π΄Π°Π²Π»Π΅Π½ΠΈΡ Π½Π° ΠΎΠ±ΡΠ°Π·ΠΎΠ²Π°Π½ΠΈΠ΅ Π΄ΡΠ΅Π²Π΅ΡΠ½ΠΎΠ³ΠΎ ΡΠ³Π»Ρ Π² ΠΏΡΠΎΡΠ΅ΡΡΠ΅ ΠΏΠΈΡΠΎΠ»ΠΈΠ·Π° Π΄ΡΠ΅Π²Π΅ΡΠΈΠ½Ρ, ΠΎΡΡΡΠ΅ΡΡΠ²Π»Π΅Π½Π½ΠΎΠ³ΠΎ Π½Π° Π»Π°Π±ΠΎΡΠ°ΡΠΎΡΠ½ΠΎΠΌ ΡΡΠ΅Π½Π΄Π΅ ΠΏΡΠΈ Π΄Π°Π²Π»Π΅Π½ΠΈΡΡ
1, 3, 5, 7 Π°ΡΠΌ ΠΈ ΡΠ΅ΠΌΠΏΠ΅ΡΠ°ΡΡΡΠ΅ 400 Β°Π‘. Π ΠΊΠ°ΡΠ΅ΡΡΠ²Π΅ ΠΈΡΡ
ΠΎΠ΄Π½ΠΎΠ³ΠΎ ΡΡΡΡΡ ΠΈΡΠΏΠΎΠ»ΡΠ·ΠΎΠ²Π°Π½Π° Π±Π΅ΡΠ΅Π·ΠΎΠ²Π°Ρ Π΄ΡΠ΅Π²Π΅ΡΠΈΠ½Π° Π² Π²ΠΈΠ΄Π΅ ΡΠ΅ΠΏΡ ΡΠ°Π·ΠΌΠ΅ΡΠΎΠΌ ΡΠ°ΡΡΠΈΡ 17Γ§8Γ§6 ΠΌΠΌ. ΠΠ»Π°ΠΆΠ½ΠΎΡΡΡ ΡΡΡΡΡ ΡΠΎΡΡΠ°Π²Π»ΡΠ»Π° 14,2 ΠΌΠ°Ρ.%, ΠΏΠ»ΠΎΡΠ½ΠΎΡΡΡ β 506,4 ΠΊΠ³/ΠΌ3 , Π·ΠΎΠ»ΡΠ½ΠΎΡΡΡ β 0,23 ΠΌΠ°Ρ.%. Π£ΡΡΠ°Π½ΠΎΠ²Π»Π΅Π½ΠΎ, ΡΡΠΎ ΠΏΠΎΠ²ΡΡΠ΅Π½ΠΈΠ΅ Π΄Π°Π²Π»Π΅Π½ΠΈΡ ΠΎΡ 1 Π΄ΠΎ 7 Π°ΡΠΌ ΠΏΡΠΈΠ²ΠΎΠ΄ΠΈΡ ΠΊ ΡΠ²Π΅Π»ΠΈΡΠ΅Π½ΠΈΡ Π²ΡΡ
ΠΎΠ΄Π° Π΄ΡΠ΅Π²Π΅ΡΠ½ΠΎΠ³ΠΎ ΡΠ³Π»Ρ ΠΎΡ ~ 25 ΠΌΠ°Ρ.% Π΄ΠΎ ~ 32 ΠΌΠ°Ρ.%. Π‘ΠΎΠ΄Π΅ΡΠΆΠ°Π½ΠΈΠ΅ ΡΠ³Π»Π΅ΡΠΎΠ΄Π° ΠΏΡΠΈ ΡΡΠΎΠΌ Π²ΠΎΠ·ΡΠ°ΡΡΠ°Π΅Ρ ΠΎΡ 89,1 Π΄ΠΎ 96,4 ΠΌΠ°Ρ.%. Π’Π°ΠΊΠΆΠ΅ ΡΠΊΡΠΏΠ΅ΡΠΈΠΌΠ΅Π½ΡΠ°Π»ΡΠ½ΠΎ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΎ Π²Π»ΠΈΡΠ½ΠΈΠ΅ ΠΈΡΠΊΡΡΡΡΠ²Π΅Π½Π½ΠΎΠ³ΠΎ ΡΡ
ΡΠ΄ΡΠ΅Π½ΠΈΡ ΡΡΠ»ΠΎΠ²ΠΈΠΉ Π²ΡΡ
ΠΎΠ΄Π° Π»Π΅ΡΡΡΠΈΡ
ΠΊΠΎΠΌΠΏΠΎΠ½Π΅Π½ΡΠΎΠ² ΠΏΠ°ΡΠΎΠ³Π°Π·ΠΎΠ²ΠΎΠΉ ΡΠΌΠ΅ΡΠΈ ΠΈΠ· ΡΠ΅Π°ΠΊΡΠΈΠΎΠ½Π½ΠΎΠΉ Π·ΠΎΠ½Ρ Π½Π° ΠΎΠ±ΡΠ°Π·ΠΎΠ²Π°Π½ΠΈΠ΅ Π΄ΡΠ΅Π²Π΅ΡΠ½ΠΎΠ³ΠΎ ΡΠ³Π»Ρ ΠΈ ΡΠΎΠ΄Π΅ΡΠΆΠ°Π½ΠΈΠ΅ ΡΠ³Π»Π΅ΡΠΎΠ΄Π°. ΠΠΎΠ»ΡΡΠ΅Π½Π½ΡΠ΅ Π΄Π°Π½Π½ΡΠ΅ ΠΏΠΎΠ·Π²ΠΎΠ»ΡΡΡ ΠΏΡΠ΅Π΄ΠΏΠΎΠ»ΠΎΠΆΠΈΡΡ, ΡΡΠΎ ΡΡ
ΡΠ΄ΡΠ΅Π½ΠΈΠ΅ ΡΡΠ»ΠΎΠ²ΠΈΡ Π²ΡΡ
ΠΎΠ΄Π° ΠΈΠ· ΡΠ΅Π°ΠΊΡΠΈΠΎΠ½Π½ΠΎΠΉ Π·ΠΎΠ½Ρ Π»Π΅ΡΡΡΠΈΡ
ΠΊΠΎΠΌΠΏΠΎΠ½Π΅Π½ΡΠΎΠ² ΠΏΡΠΈΠ²ΠΎΠ΄ΠΈΡ ΠΊ ΠΈΡ
ΡΠ°Π·Π»ΠΎΠΆΠ΅Π½ΠΈΡ Ρ ΠΎΠ±ΡΠ°Π·ΠΎΠ²Π°Π½ΠΈΠ΅ΠΌ ΡΠ³Π»Π΅ΡΠΎΠ΄Π°, ΠΎΡΠ»Π°Π³Π°ΡΡΠ΅Π³ΠΎΡΡ Π² ΠΏΠΎΡΠ°Ρ
ΠΏΠΈΡΠΎΠ»ΠΈΠ·ΡΠ΅ΠΌΠΎΠ³ΠΎ ΠΌΠ°ΡΠ΅ΡΠΈΠ°Π»Π° ΠΈ Π½Π° Π΅Π³ΠΎ Π²Π½Π΅ΡΠ½Π΅ΠΉ ΠΏΠΎΠ²Π΅ΡΡ
Π½ΠΎΡΡΠΈ. ΠΡΠ΅Π΄ΡΡΠ°Π²Π»Π΅Π½Ρ ΡΠΊΡΠΏΠ΅ΡΠΈΠΌΠ΅Π½ΡΠ°Π»ΡΠ½ΡΠ΅ Π΄Π°Π½Π½ΡΠ΅, ΡΠ²ΠΈΠ΄Π΅ΡΠ΅Π»ΡΡΡΠ²ΡΡΡΠΈΠ΅ ΠΎ ΡΠΎΠΌ, ΡΡΠΎ ΠΊΠΎΠΌΠΏΠΎΠ½Π΅Π½ΡΡ ΠΏΠΈΡΠΎΠ»ΠΈΠ·Π½ΠΎΠΉ ΡΠΌΠΎΠ»Ρ ΡΠ°Π·Π»Π°Π³Π°ΡΡΡΡ Π² ΠΏΡΠΈΡΡΡΡΡΠ²ΠΈΠΈ Π΄ΡΠ΅Π²Π΅ΡΠ½ΠΎΠ³ΠΎ ΡΠ³Π»Ρ Ρ ΠΎΡΠ»ΠΎΠΆΠ΅Π½ΠΈΠ΅ΠΌ ΠΎΠ±ΡΠ°Π·ΡΡΡΠ΅Π³ΠΎΡΡ ΡΠ³Π»Π΅ΡΠΎΠ΄Π° Π½Π° Π΅Π³ΠΎ ΠΏΠΎΠ²Π΅ΡΡ
Π½ΠΎΡΡΠΈ. ΠΠ° ΠΏΡΠΎΡΠ΅ΠΊΠ°Π½ΠΈΠ΅ ΡΡΠΎΠ³ΠΎ ΠΏΡΠΎΡΠ΅ΡΡΠ° ΡΠΊΠ°Π·ΡΠ²Π°Π΅Ρ ΡΠ°Π·Π»ΠΈΡΠΈΠ΅ Π² ΠΌΠ°ΡΡΠ°Ρ
ΠΎΠ΄ΠΈΠ½Π°ΠΊΠΎΠ²ΡΡ
ΠΎΠ±ΡΠ°Π·ΡΠΎΠ² Π΄ΡΠ΅Π²Π΅ΡΠ½ΠΎΠ³ΠΎ ΡΠ³Π»Ρ, Π²ΡΠ΄Π΅ΡΠΆΠΈΠ²Π°Π΅ΠΌΡΡ
ΠΏΡΠΈ ΡΠ΅ΠΌΠΏΠ΅ΡΠ°ΡΡΡΠ΅ 600 Β°Π‘ ΠΏΡΠΈ ΠΎΡΡΡΡΡΡΠ²ΠΈΠΈ ΠΈ Π½Π°Π»ΠΈΡΠΈΠΈ ΠΏΠΈΡΠΎΠ»ΠΈΠ·Π½ΠΎΠΉ ΡΠΌΠΎΠ»Ρ: ΠΊΠΎΠ½Π΅ΡΠ½Π°Ρ ΠΌΠ°ΡΡΠ° ΠΎΠ±ΡΠ°Π·ΡΠ°, Π²ΡΠ΄Π΅ΡΠΆΠΈΠ²Π°Π΅ΠΌΠΎΠ³ΠΎ Π² ΠΏΡΠΈΡΡΡΡΡΠ²ΠΈΠΈ ΠΏΠΈΡΠΎΠ»ΠΈΠ·Π½ΠΎΠΉ ΡΠΌΠΎΠ»Ρ, ΠΏΡΠ΅Π²ΡΡΠ°Π΅Ρ ΠΌΠ°ΡΡΡ ΠΎΠ±ΡΠ°Π·ΡΠ°, Π²ΡΠ΄Π΅ΡΠΆΠΈΠ²Π°Π΅ΠΌΠΎΠ³ΠΎ ΠΏΡΠΈ Π΅Π΅ ΠΎΡΡΡΡΡΡΠ²ΠΈΠΈ. ΠΡΠΈ ΡΠ΅Π·ΡΠ»ΡΡΠ°ΡΡ Π΄Π°ΡΡ ΠΊΠΎΡΠ²Π΅Π½Π½ΠΎΠ΅ Π΄ΠΎΠΊΠ°Π·Π°ΡΠ΅Π»ΡΡΡΠ²ΠΎ ΠΏΡΠ°Π²ΠΈΠ»ΡΠ½ΠΎΡΡΠΈ ΠΏΡΠ΅Π΄ΠΏΠΎΠ»ΠΎΠΆΠ΅Π½ΠΈΡ ΠΎ ΡΠ°Π·Π»ΠΎΠΆΠ΅Π½ΠΈΠΈ ΠΊΠΎΠΌΠΏΠΎΠ½Π΅Π½ΡΠΎΠ² ΠΏΠΈΡΠΎΠ»ΠΈΠ·Π½ΠΎΠΉ ΡΠΌΠΎΠ»Ρ Π² ΠΏΠΎΡΠ°Ρ
ΠΈ Π½Π° ΠΏΠΎΠ²Π΅ΡΡ
Π½ΠΎΡΡΠΈ ΠΏΠΈΡΠΎΠ»ΠΈΠ·ΡΠ΅ΠΌΠΎΠ³ΠΎ ΠΌΠ°ΡΠ΅ΡΠΈΠ°Π»Π° ΠΏΡΠΈ Π·Π°Π΄Π΅ΡΠΆΠΊΠ΅ Π²ΡΡ
ΠΎΠ΄Π° ΠΏΡΠΎΠ΄ΡΠΊΡΠΎΠ² ΠΏΠΈΡΠΎΠ»ΠΈΠ·Π° ΠΈΠ· ΡΠ΅Π°ΠΊΡΠΈΠΎΠ½Π½ΠΎΠΉ Π·ΠΎΠ½Ρ. Π Π΅Π·ΡΠ»ΡΡΠ°ΡΡ Π½Π°ΡΡΠΎΡΡΠ΅Π³ΠΎ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΡ ΠΏΡΠ΅Π΄ΡΡΠ°Π²Π»ΡΡΡ ΠΈΠ½ΡΠ΅ΡΠ΅Ρ Π΄Π»Ρ ΡΠΏΠ΅ΡΠΈΠ°Π»ΠΈΡΡΠΎΠ², ΡΠ°Π·ΡΠ°Π±Π°ΡΡΠ²Π°ΡΡΠΈΡ
ΠΏΠΈΡΠΎΠ»ΠΈΠ·Π½ΠΎΠ΅ ΠΎΠ±ΠΎΡΡΠ΄ΠΎΠ²Π°Π½ΠΈΠ΅
ΠΠΠ‘ΠΠΠ ΠΠΠΠΠ’ΠΠΠ¬ΠΠΠ ΠΠ‘Π‘ΠΠΠΠΠΠΠΠΠ ΠΠΠΠΠ’ΠΠΠ ΠΠΠ ΠΠΠΠΠΠΠ¦ΠΠ ΠΠΠ‘ΠΠΠ ΠΠΠΠ¬Π¦ΠΠ― Π ΠΠΠΠ’ΠΠ ΠΠΠ§ΠΠ‘ΠΠΠ₯ Π£Π‘ΠΠΠΠΠ―Π₯
The results of experimental studies of kinetics of the reaction CaO + CO2 = CaΠ‘Π2 performed at isothermal conditions at temperatures of 773, 873, 973 and 1123 K are being discussed. Pyrolysis gas, containing approximately 14.5% vol. of CO2 was fed during the experiments into the reaction zone, which housed the sample of calcinated dolomite. The extent of the reaction was determined from the weight gain of the sample kept at a constant temperature. Analysis of the data has shown that the kinetics of the CaO carbonation reaction is characterized by typical periods of heterogeneous processes, such as periods of induction, reaction acceleration and deceleration. The rate-determining step of the overall process for small degrees of conversion is a chemical reaction of CaO and CO2 . Activation energy and pre-exponential factor of the Arrhenius equation were estimated for this stage on the basis of the performed study. They are 29.6 kJ / mol and 0.36Β·10β1 min-1 (6.0Β·10β3 s-1 ) respectively.Β ΠΠ±ΡΡΠΆΠ΄Π°ΡΡΡΡ ΡΠ΅Π·ΡΠ»ΡΡΠ°ΡΡ ΡΠΊΡΠΏΠ΅ΡΠΈΠΌΠ΅Π½ΡΠ°Π»ΡΠ½ΡΡ
ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΠΉ ΠΊΠΈΠ½Π΅ΡΠΈΠΊΠΈ ΡΠ΅Π°ΠΊΡΠΈΠΈ Π‘Π°Π + Π‘Π2 = Π‘Π°Π‘Π2 , Π²ΡΠΏΠΎΠ»Π½Π΅Π½Π½ΡΠ΅ Π² ΠΈΠ·ΠΎΡΠ΅ΡΠΌΠΈΡΠ΅ΡΠΊΠΈΡ
ΡΡΠ»ΠΎΠ²ΠΈΡΡ
ΠΏΡΠΈ ΡΠ΅ΠΌΠΏΠ΅ΡΠ°ΡΡΡΠ°Ρ
773, 873, 973 ΠΈ 1123 Π. Π ΠΎΠΏΡΡΠ°Ρ
ΠΏΠΈΡΠΎΠ»ΠΈΠ·Π½ΡΠΉ Π³Π°Π·, ΡΠΎΠ΄Π΅ΡΠΆΠ°ΡΠΈΠΉ ΠΏΡΠΈΠΌΠ΅ΡΠ½ΠΎ 14,5 ΠΌΠ°Ρ.% Π‘Π2 , ΠΏΠΎΠ΄Π°Π²Π°Π»ΡΡ Π² ΡΠ΅Π°ΠΊΡΠΈΠΎΠ½Π½ΡΡ Π·ΠΎΠ½Ρ, Π² ΠΊΠΎΡΠΎΡΠΎΠΉ ΡΠ°Π·ΠΌΠ΅ΡΠ°Π»ΡΡ ΠΎΠ±ΡΠ°Π·Π΅Ρ ΠΎΡΠΎΠΆΠΆΠ΅Π½Π½ΠΎΠ³ΠΎ Π΄ΠΎΠ»ΠΎΠΌΠΈΡΠ°. Π‘ΡΠ΅ΠΏΠ΅Π½Ρ ΠΏΡΠΎΡΠ΅ΠΊΠ°Π½ΠΈΡ ΡΠ΅Π°ΠΊΡΠΈΠΈ ΠΎΠΏΡΠ΅Π΄Π΅Π»ΡΠ»Π°ΡΡ ΠΏΠΎ ΠΏΡΠΈΡΠΎΡΡΡ ΠΌΠ°ΡΡΡ ΠΎΠ±ΡΠ°Π·ΡΠ°, Π²ΡΠ΄Π΅ΡΠΆΠΈΠ²Π°Π΅ΠΌΠΎΠ³ΠΎ ΠΏΡΠΈ ΠΏΠΎΡΡΠΎΡΠ½Π½ΠΎΠΉ ΡΠ΅ΠΌΠΏΠ΅ΡΠ°ΡΡΡΠ΅. ΠΠ½Π°Π»ΠΈΠ· ΠΏΠΎΠ»ΡΡΠ΅Π½Π½ΡΡ
Π΄Π°Π½Π½ΡΡ
ΠΏΠΎΠΊΠ°Π·Π°Π», ΡΡΠΎ ΠΊΠΈΠ½Π΅ΡΠΈΠΊΠ° ΠΊΠ°ΡΠ±ΠΎΠ½ΠΈΠ·Π°ΡΠΈΠΈ Π‘Π°Π Ρ
Π°ΡΠ°ΠΊΡΠ΅ΡΠΈΠ·ΡΠ΅ΡΡΡ Π½Π°Π»ΠΈΡΠΈΠ΅ΠΌ ΡΠΈΠΏΠΈΡΠ½ΡΡ
Π΄Π»Ρ Π³Π΅ΡΠ΅ΡΠΎΠ³Π΅Π½Π½ΡΡ
ΠΏΡΠΎΡΠ΅ΡΡΠΎΠ² ΠΏΠ΅ΡΠΈΠΎΠ΄ΠΎΠ², ΡΠ°ΠΊΠΈΡ
ΠΊΠ°ΠΊ ΠΈΠ½Π΄ΡΠΊΡΠΈΡ, ΡΡΠΊΠΎΡΠ΅Π½ΠΈΠ΅ ΠΈ Π·Π°ΠΌΠ΅Π΄Π»Π΅Π½ΠΈΠ΅. ΠΠ»Ρ ΠΌΠ°Π»ΡΡ
ΡΡΠ΅ΠΏΠ΅Π½Π΅ΠΉ ΠΏΡΠ΅Π²ΡΠ°ΡΠ΅Π½ΠΈΡ ΡΡΠ°Π΄ΠΈΠ΅ΠΉ, ΠΎΠΏΡΠ΅Π΄Π΅Π»ΡΡΡΠ΅ΠΉ ΡΠΊΠΎΡΠΎΡΡΡ ΡΡΠΌΠΌΠ°ΡΠ½ΠΎΠ³ΠΎ ΠΏΡΠΎΡΠ΅ΡΡΠ°, ΡΠ²Π»ΡΠ΅ΡΡΡ Ρ
ΠΈΠΌΠΈΡΠ΅ΡΠΊΠΎΠ΅ Π²Π·Π°ΠΈΠΌΠΎΠ΄Π΅ΠΉΡΡΠ²ΠΈΠ΅ Π‘Π°Π ΠΈ Π‘Π2 . ΠΠ»Ρ Π΄Π°Π½Π½ΠΎΠΉ ΡΡΠ°Π΄ΠΈΠΈ Π½Π° ΠΎΡΠ½ΠΎΠ²Π°Π½ΠΈΠΈ Π²ΡΠΏΠΎΠ»Π½Π΅Π½Π½ΠΎΠ³ΠΎ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΡ ΠΎΠΏΡΠ΅Π΄Π΅Π»Π΅Π½Ρ ΡΠ½Π΅ΡΠ³ΠΈΡ Π°ΠΊΡΠΈΠ²Π°ΡΠΈΠΈ (29,6 ΠΊΠΠΆ/ΠΌΠΎΠ»Ρ) ΠΈ ΠΏΡΠ΅Π΄ΡΠΊΡΠΏΠΎΠ½Π΅Π½ΡΠΈΠ°Π»ΡΠ½ΡΠΉ ΡΠ°ΠΊΡΠΎΡ Π°ΡΡΠ΅Π½ΠΈΡΡΠΎΠ²ΡΠΊΠΎΠΉ Π·Π°Π²ΠΈΡΠΈΠΌΠΎΡΡΠΈ (0,36Β·10β1 ΠΌΠΈΠ½-1 ΠΈΠ»ΠΈ 6,0Β·10β3 Ρ-1).
ΠΠ°ΡΠ°Π»ΠΈΡΠΈΡΠ΅ΡΠΊΠΈΠ΅ ΡΠ²ΠΎΠΉΡΡΠ²Π° ΠΊΠΎΠΌΠΏΠΎΠ·ΠΈΡΠ½ΠΎΠ³ΠΎ ΠΌΠ°ΡΠ΅ΡΠΈΠ°Π»Π° Π½Π° ΠΎΡΠ½ΠΎΠ²Π΅ Π±Π΅Π»ΠΎΡΡΡΡΠΊΠΈΡ Π΄ΠΎΠ»ΠΎΠΌΠΈΡΠΎΠ² ΠΏΠΎ ΠΎΡΠ½ΠΎΡΠ΅Π½ΠΈΡ ΠΊ ΠΏΡΠΎΡΠ΅ΡΡΡ ΡΠ°Π·Π»ΠΎΠΆΠ΅Π½ΠΈΡ ΠΏΠΈΡΠΎΠ»ΠΈΠ·Π½ΠΎΠΉ ΡΠΌΠΎΠ»Ρ
The paper discusses results of an experimental study of the thermal decomposition of pyrolysis tar in a homogeneous process and in the presence of a catalyst. Experiments on thermal decomposition of pyrolysis tar were carried out under isothermal conditions in a laboratory setup at temperatures of 300, 400, 450 and 500 Β°C. The rate of the homogeneous process of thermal decomposition of tar and maximal degrees of decomposition were determined. According to the data of this work, the activation energy of the homogeneous process was 320 kJ/mol. It was found that the rate of thermal decomposition of the tar increases in the case of introducing samples of natural dolomites into the reaction zone, as well as a composite material based on them. This increase is due to the occurrence of a heterogeneous catalytic decomposition reaction of the pyrolysis tar. The apparent activation energy of this process was 210 kJ/mol (when using dolomites) and 202 kJ/mol (when using composites). It was noted that the composite material has significantly more favorable mechanical properties than dolomite. Based on the established data, it was concluded that the creation of composite catalysts for the thermal decomposition of heavy hydrocarbons formed in the processes of thermochemical conversion of biomass is promising.ΠΠ±ΡΡΠΆΠ΄Π°ΡΡΡΡ ΡΠ΅Π·ΡΠ»ΡΡΠ°ΡΡ ΡΠΊΡΠΏΠ΅ΡΠΈΠΌΠ΅Π½ΡΠ°Π»ΡΠ½ΠΎΠ³ΠΎ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΡ ΡΠ΅ΡΠΌΠΈΡΠ΅ΡΠΊΠΎΠ³ΠΎ ΡΠ°Π·Π»ΠΎΠΆΠ΅Π½ΠΈΡ ΠΏΠΈΡΠΎΠ»ΠΈΠ·Π½ΠΎΠΉ ΡΠΌΠΎΠ»Ρ Π² Π³ΠΎΠΌΠΎΠ³Π΅Π½Π½ΠΎΠΌ ΠΏΡΠΎΡΠ΅ΡΡΠ΅ ΠΈ Π² ΠΏΡΠΈΡΡΡΡΡΠ²ΠΈΠΈ ΠΊΠ°ΡΠ°Π»ΠΈΠ·Π°ΡΠΎΡΠ°. ΠΠΏΡΡΡ ΠΏΠΎ ΡΠ΅ΡΠΌΠΈΡΠ΅ΡΠΊΠΎΠΌΡ ΡΠ°Π·Π»ΠΎΠΆΠ΅Π½ΠΈΡ ΠΏΠΈΡΠΎΠ»ΠΈΠ·Π½ΠΎΠΉ ΡΠΌΠΎΠ»Ρ Π²ΡΠΏΠΎΠ»Π½Π΅Π½Ρ Π² ΠΈΠ·ΠΎΡΠ΅ΡΠΌΠΈΡΠ΅ΡΠΊΠΈΡ
ΡΡΠ»ΠΎΠ²ΠΈΡΡ
Π½Π° Π»Π°Π±ΠΎΡΠ°ΡΠΎΡΠ½ΠΎΠΉ ΡΡΡΠ°Π½ΠΎΠ²ΠΊΠ΅ ΠΏΡΠΈ ΡΠ΅ΠΌΠΏΠ΅ΡΠ°ΡΡΡΠ°Ρ
300, 400, 450 ΠΈ 500 Β°Π‘. ΠΠΏΡΠ΅Π΄Π΅Π»Π΅Π½Ρ ΡΠΊΠΎΡΠΎΡΡΡ Π³ΠΎΠΌΠΎΠ³Π΅Π½Π½ΠΎΠ³ΠΎ ΠΏΡΠΎΡΠ΅ΡΡΠ° ΡΠ΅ΡΠΌΠΈΡΠ΅ΡΠΊΠΎΠ³ΠΎ ΡΠ°Π·Π»ΠΎΠΆΠ΅Π½ΠΈΡ ΡΠΌΠΎΠ»Ρ ΠΈ ΠΏΡΠ΅Π΄Π΅Π»ΡΠ½ΡΠ΅ ΡΡΠ΅ΠΏΠ΅Π½ΠΈ ΡΠ°Π·Π»ΠΎΠΆΠ΅Π½ΠΈΡ. ΠΠ½Π΅ΡΠ³ΠΈΡ Π°ΠΊΡΠΈΠ²Π°ΡΠΈΠΈ Π³ΠΎΠΌΠΎΠ³Π΅Π½Π½ΠΎΠ³ΠΎ ΠΏΡΠΎΡΠ΅ΡΡΠ° ΠΏΠΎ Π΄Π°Π½Π½ΡΠΌ Π½Π°ΡΡΠΎΡΡΠ΅ΠΉ ΡΠ°Π±ΠΎΡΡ ΡΠΎΡΡΠ°Π²ΠΈΠ»Π° 320 ΠΊΠΠΆ/ΠΌΠΎΠ»Ρ. Π£ΡΡΠ°Π½ΠΎΠ²Π»Π΅Π½ΠΎ, ΡΡΠΎ ΡΠΊΠΎΡΠΎΡΡΡ ΡΠ΅ΡΠΌΠΈΡΠ΅ΡΠΊΠΎΠ³ΠΎ ΡΠ°Π·Π»ΠΎΠΆΠ΅Π½ΠΈΡ ΡΠΌΠΎΠ»Ρ ΠΏΠΎΠ²ΡΡΠ°Π΅ΡΡΡ Π² ΡΠ»ΡΡΠ°Π΅ Π²Π½Π΅ΡΠ΅Π½ΠΈΡ Π² ΡΠ΅Π°ΠΊΡΠΈΠΎΠ½Π½ΡΡ Π·ΠΎΠ½Ρ ΠΎΠ±ΡΠ°Π·ΡΠΎΠ² ΠΏΡΠΈΡΠΎΠ΄Π½ΡΡ
Π΄ΠΎΠ»ΠΎΠΌΠΈΡΠΎΠ², Π° ΡΠ°ΠΊΠΆΠ΅ ΠΊΠΎΠΌΠΏΠΎΠ·ΠΈΡΠ½ΠΎΠ³ΠΎ ΠΌΠ°ΡΠ΅ΡΠΈΠ°Π»Π° Π½Π° ΠΈΡ
ΠΎΡΠ½ΠΎΠ²Π΅. ΠΡΠΎ ΠΏΠΎΠ²ΡΡΠ΅Π½ΠΈΠ΅ ΠΎΠ±ΡΡΠ»ΠΎΠ²Π»Π΅Π½ΠΎ ΠΏΡΠΎΡΠ΅ΠΊΠ°Π½ΠΈΠ΅ΠΌ Π³Π΅ΡΠ΅ΡΠΎΠ³Π΅Π½Π½ΠΎΠΉ ΠΊΠ°ΡΠ°Π»ΠΈΡΠΈΡΠ΅ΡΠΊΠΎΠΉ ΡΠ΅Π°ΠΊΡΠΈΠΈ ΡΠ°Π·Π»ΠΎΠΆΠ΅Π½ΠΈΡ ΠΏΠΈΡΠΎΠ»ΠΈΠ·Π½ΠΎΠΉ ΡΠΌΠΎΠ»Ρ. ΠΠ°ΠΆΡΡΠ°ΡΡΡ ΡΠ½Π΅ΡΠ³ΠΈΡ Π°ΠΊΡΠΈΠ²Π°ΡΠΈΠΈ ΡΡΠΎΠ³ΠΎ ΠΏΡΠΎΡΠ΅ΡΡΠ° ΡΠΎΡΡΠ°Π²ΠΈΠ»Π° 210 ΠΊΠΠΆ/ΠΌΠΎΠ»Ρ (ΠΏΡΠΈ ΠΈΡΠΏΠΎΠ»ΡΠ·ΠΎΠ²Π°Π½ΠΈΠΈ Π΄ΠΎΠ»ΠΎΠΌΠΈΡΠΎΠ²) ΠΈ 202 ΠΊΠΠΆ/ΠΌΠΎΠ»Ρ (ΠΏΡΠΈ ΠΈΡΠΏΠΎΠ»ΡΠ·ΠΎΠ²Π°Π½ΠΈΠΈ ΠΊΠΎΠΌΠΏΠΎΠ·ΠΈΡΠΎΠ²). ΠΡΠΈ ΡΡΠΎΠΌ ΠΎΡΠΌΠ΅ΡΠ΅Π½ΠΎ, ΡΡΠΎ ΠΊΠΎΠΌΠΏΠΎΠ·ΠΈΡΠ½ΡΠΉ ΠΌΠ°ΡΠ΅ΡΠΈΠ°Π» ΠΎΠ±Π»Π°Π΄Π°Π΅Ρ Π·Π½Π°ΡΠΈΡΠ΅Π»ΡΠ½ΠΎ Π±ΠΎΠ»Π΅Π΅ Π±Π»Π°Π³ΠΎΠΏΡΠΈΡΡΠ½ΡΠΌΠΈ ΠΌΠ΅Ρ
Π°Π½ΠΈΡΠ΅ΡΠΊΠΈΠΌΠΈ ΡΠ²ΠΎΠΉΡΡΠ²Π°ΠΌΠΈ, Π½Π΅ΠΆΠ΅Π»ΠΈ Π΄ΠΎΠ»ΠΎΠΌΠΈΡ. ΠΠ° ΠΎΡΠ½ΠΎΠ²Π°Π½ΠΈΠΈ ΡΡΡΠ°Π½ΠΎΠ²Π»Π΅Π½Π½ΡΡ
Π΄Π°Π½Π½ΡΡ
ΡΠ΄Π΅Π»Π°Π½ Π²ΡΠ²ΠΎΠ΄ ΠΎ ΠΏΠ΅ΡΡΠΏΠ΅ΠΊΡΠΈΠ²Π½ΠΎΡΡΠΈ ΡΠΎΠ·Π΄Π°Π½ΠΈΡ ΠΊΠΎΠΌΠΏΠΎΠ·ΠΈΡΠ½ΡΡ
ΠΊΠ°ΡΠ°Π»ΠΈΠ·Π°ΡΠΎΡΠΎΠ² ΡΠ΅ΡΠΌΠΈΡΠ΅ΡΠΊΠΎΠ³ΠΎ ΡΠ°Π·Π»ΠΎΠΆΠ΅Π½ΠΈΡ ΡΡΠΆΠ΅Π»ΡΡ
ΡΠ³Π»Π΅Π²ΠΎΠ΄ΠΎΡΠΎΠ΄ΠΎΠ², ΠΎΠ±ΡΠ°Π·ΡΡΡΠΈΡ
ΡΡ Π² ΠΏΡΠΎΡΠ΅ΡΡΠ°Ρ
ΡΠ΅ΡΠΌΠΎΡ
ΠΈΠΌΠΈΡΠ΅ΡΠΊΠΎΠΉ ΠΊΠΎΠ½Π²Π΅ΡΡΠΈΠΈ Π±ΠΈΠΎΠΌΠ°ΡΡΡ
ΠΠΎΠ΄Π΅Π»ΠΈΡΠΎΠ²Π°Π½ΠΈΠ΅ ΠΏΡΠΎΡΠ΅ΡΡΠ° ΠΏΠΎΠ»ΡΡΠ΅Π½ΠΈΡ ΠΆΠΈΠ΄ΠΊΠΈΡ ΠΏΡΠΎΠ΄ΡΠΊΡΠΎΠ² ΠΏΠΈΡΠΎΠ»ΠΈΠ·Π° ΡΠ°ΡΡΠΈΡΠ΅Π»ΡΠ½ΠΎΠΉ Π±ΠΈΠΎΠΌΠ°ΡΡΡ Ρ ΡΡΠ΅ΡΠΎΠΌ ΡΠΊΠΎΡΠΎΡΡΠΈ ΠΈΡ ΠΎΡ Π»Π°ΠΆΠ΄Π΅Π½ΠΈΡ
The article presents the results of computational and experimental studies of thermochemical conversion of wood biomass to obtain liquid pyrolysis products taking into account their cooling rate. The method of calculating the optimal operating parameters (temperature and cooling rate) of the techno-logical process is presented. An expression is proposed to determine the consumption of wood raw materials depending on the temperature of the thermochemical conversion process. It is noted that the mass yield of liquid pyrolysis products from the reactor poorly depends on temperature and is approximately 0.45 in the range from 573 to 923 K. To assess the effect of the cooling rate of liquid pyrolysis products, a third-order differential equation was used for a model limited by the reaction rate. It has been shown that when liquid pyrolysis products are cooled, the degree of their conversion tends to a certain value other than 1 (depending on the cooling rate). Calculated data on the dependence of the degrees of conversion of liquid wood pyrolysis products on time at different cooling rates and temperatures of thermochemical conversion of biomass have been obtained. It has been established also that the ratio of the mass yield of cooled liquid pyrolysis products to the initial loading of the pyrolysis reactor makes it possible to find optimal cooling conditions for the primary products of biomass pyrolysis carried out at certain temperatures. Graphs of the dependence of this parameter on the temperature of the thermochemical conversion of wood biomass for different cooling rates of liquid pyrolysis products are presented. It is shown that the maximum possible yield of liquid products is provided at a reactor temperature of 923β973 K and a cooling rate of 700000β1200000 degrees/min. However, achieving such cooling rates is rather a difficult technical task. Therefore, more limited temperature 773β800 K is accepted, at which a practically realizable cooling rate of primary biomass de-composition products is achieved.Π ΡΡΠ°ΡΡΠ΅ ΠΏΡΠ΅Π΄ΡΡΠ°Π²Π»Π΅Π½Ρ ΡΠ΅Π·ΡΠ»ΡΡΠ°ΡΡ ΡΠ°ΡΡΠ΅ΡΠ½ΡΡ
ΠΈ ΡΠΊΡΠΏΠ΅ΡΠΈΠΌΠ΅Π½ΡΠ°Π»ΡΠ½ΡΡ
ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΠΉ ΡΠ΅ΡΠΌΠΎΡ
ΠΈΠΌΠΈΡΠ΅ΡΠΊΠΎΠΉ ΠΊΠΎΠ½Π²Π΅ΡΡΠΈΠΈ Π΄ΡΠ΅Π²Π΅ΡΠ½ΠΎΠΉ Π±ΠΈΠΎΠΌΠ°ΡΡΡ Ρ ΠΏΠΎΠ»ΡΡΠ΅Π½ΠΈΠ΅ΠΌ ΠΆΠΈΠ΄ΠΊΠΈΡ
ΠΏΡΠΎΠ΄ΡΠΊΡΠΎΠ² ΠΏΠΈΡΠΎΠ»ΠΈΠ·Π° Ρ ΡΡΠ΅ΡΠΎΠΌ ΡΠΊΠΎΡΠΎΡΡΠΈ ΠΈΡ
ΠΎΡ
Π»Π°ΠΆΠ΄Π΅Π½ΠΈΡ. ΠΡΠΈΠ²Π΅Π΄Π΅Π½Π° ΠΌΠ΅ΡΠΎΠ΄ΠΈΠΊΠ° ΡΠ°ΡΡΠ΅ΡΠ° ΠΎΠΏΡΠΈΠΌΠ°Π»ΡΠ½ΡΡ
ΡΠ΅ΠΆΠΈΠΌΠ½ΡΡ
ΠΏΠ°ΡΠ°ΠΌΠ΅ΡΡΠΎΠ² (ΡΠ΅ΠΌΠΏΠ΅ΡΠ°ΡΡΡΡ ΠΈ ΡΠΊΠΎΡΠΎΡΡΠΈ ΠΎΡ
Π»Π°ΠΆΠ΄Π΅Π½ΠΈΡ) ΡΠ΅Ρ
Π½ΠΎΠ»ΠΎΠ³ΠΈΡΠ΅ΡΠΊΠΎΠ³ΠΎ ΠΏΡΠΎΡΠ΅ΡΡΠ°. ΠΡΠ΅Π΄Π»ΠΎΠΆΠ΅Π½ΠΎ Π²ΡΡΠ°ΠΆΠ΅Π½ΠΈΠ΅ Π΄Π»Ρ ΠΎΠΏΡΠ΅Π΄Π΅Π»Π΅Π½ΠΈΡ ΡΠ°ΡΡ
ΠΎΠ΄Π° Π΄ΡΠ΅Π²Π΅ΡΠ½ΠΎΠ³ΠΎ ΡΡΡΡΡ Π² Π·Π°Π²ΠΈΡΠΈΠΌΠΎΡΡΠΈ ΠΎΡ ΡΠ΅ΠΌΠΏΠ΅ΡΠ°ΡΡΡΡ ΡΠ΅ΡΠΌΠΎΡ
ΠΈΠΌΠΈΡΠ΅ΡΠΊΠΎΠΉ ΠΊΠΎΠ½Π²Π΅ΡΡΠΈΠΈ. ΠΡΠΌΠ΅ΡΠ΅Π½ΠΎ, ΡΡΠΎ ΠΌΠ°ΡΡΠΎΠ²ΡΠΉ Π²ΡΡ
ΠΎΠ΄ ΠΆΠΈΠ΄ΠΊΠΈΡ
ΠΏΡΠΎΠ΄ΡΠΊΡΠΎΠ² ΠΏΠΈΡΠΎΠ»ΠΈΠ·Π° ΠΈΠ· ΡΠ΅Π°ΠΊΡΠΎΡΠ° ΡΠ»Π°Π±ΠΎ Π·Π°Π²ΠΈΡΠΈΡ ΠΎΡ ΡΠ΅ΠΌΠΏΠ΅ΡΠ°ΡΡΡΡ ΠΈ ΡΠ°Π²Π΅Π½ ΠΏΡΠΈΠΌΠ΅ΡΠ½ΠΎ 0,45 Π² Π΄ΠΈΠ°ΠΏΠ°Π·ΠΎΠ½Π΅ ΠΎΡ 573 Π΄ΠΎ 923 Π. ΠΠ»Ρ ΠΎΡΠ΅Π½ΠΊΠΈ Π²Π»ΠΈΡΠ½ΠΈΡ ΡΠΊΠΎΡΠΎΡΡΠΈ ΠΈΡ
ΠΎΡ
Π»Π°ΠΆΠ΄Π΅Π½ΠΈΡ ΠΈΡΠΏΠΎΠ»ΡΠ·ΠΎΠ²Π°Π½ΠΎ Π΄ΠΈΡΡΠ΅ΡΠ΅Π½ΡΠΈΠ°Π»ΡΠ½ΠΎΠ΅ ΡΡΠ°Π²Π½Π΅Π½ΠΈΠ΅ ΡΡΠ΅ΡΡΠ΅Π³ΠΎ ΠΏΠΎΡΡΠ΄ΠΊΠ° Π΄Π»Ρ ΠΌΠΎΠ΄Π΅Π»ΠΈ, Π»ΠΈΠΌΠΈΡΠΈΡΠΎΠ²Π°Π½Π½ΠΎΠΉ ΡΠΊΠΎΡΠΎΡΡΡΡ ΡΠ΅Π°ΠΊΡΠΈΠΈ. ΠΠΎΠΊΠ°Π·Π°Π½ΠΎ, ΡΡΠΎ ΠΏΡΠΈ ΠΎΡ
Π»Π°ΠΆΠ΄Π΅Π½ΠΈΠΈ ΠΆΠΈΠ΄ΠΊΠΈΡ
ΠΏΡΠΎΠ΄ΡΠΊΡΠΎΠ² ΠΏΠΈΡΠΎΠ»ΠΈΠ·Π° ΡΡΠ΅ΠΏΠ΅Π½Ρ ΠΈΡ
ΠΊΠΎΠ½Π²Π΅ΡΡΠΈΠΈ ΡΡΡΠ΅ΠΌΠΈΡΡΡ ΠΊ ΠΎΠΏΡΠ΅Π΄Π΅Π»Π΅Π½Π½ΠΎΠΌΡ Π·Π½Π°ΡΠ΅Π½ΠΈΡ, ΠΎΡΠ»ΠΈΡΠ½ΠΎΠΌΡ ΠΎΡ 1. ΠΠΎΠ»ΡΡΠ΅Π½Ρ ΡΠ°ΡΡΠ΅ΡΠ½ΡΠ΅ Π΄Π°Π½Π½ΡΠ΅ ΠΏΠΎ Π·Π°Π²ΠΈΡΠΈΠΌΠΎΡΡΠΈ ΡΡΠ΅ΠΏΠ΅Π½ΠΈ ΠΊΠΎΠ½Π²Π΅ΡΡΠΈΠΈ ΠΆΠΈΠ΄ΠΊΠΈΡ
ΠΏΡΠΎΠ΄ΡΠΊΡΠΎΠ² ΠΏΠΈΡΠΎΠ»ΠΈΠ·Π° Π΄ΡΠ΅Π²Π΅ΡΠΈΠ½Ρ ΠΎΡ Π²ΡΠ΅ΠΌΠ΅Π½ΠΈ ΠΏΡΠΈ ΡΠ°Π·Π»ΠΈΡΠ½ΠΎΠΉ ΡΠΊΠΎΡΠΎΡΡΠΈ ΠΈΡ
ΠΎΡ
Π»Π°ΠΆΠ΄Π΅Π½ΠΈΡ ΠΈ ΡΠ΅ΠΌΠΏΠ΅ΡΠ°ΡΡΡΠ΅ ΡΠ΅ΡΠΌΠΎΡ
ΠΈΠΌΠΈΡΠ΅ΡΠΊΠΎΠΉ ΠΊΠΎΠ½Π²Π΅ΡΡΠΈΠΈ Π±ΠΈΠΎΠΌΠ°ΡΡΡ. Π£ΡΡΠ°Π½ΠΎΠ²Π»Π΅Π½ΠΎ, ΡΡΠΎ ΠΎΡΠ½ΠΎΡΠ΅Π½ΠΈΠ΅ ΠΌΠ°ΡΡΠΎΠ²ΠΎΠ³ΠΎ Π²ΡΡ
ΠΎΠ΄Π° ΠΎΡ
Π»Π°ΠΆΠ΄Π΅Π½Π½ΡΡ
ΠΆΠΈΠ΄ΠΊΠΈΡ
ΠΏΡΠΎΠ΄ΡΠΊΡΠΎΠ² ΠΏΠΈΡΠΎΠ»ΠΈΠ·Π° ΠΊ Π½Π°ΡΠ°Π»ΡΠ½ΠΎΠΉ Π·Π°Π³ΡΡΠ·ΠΊΠ΅ ΠΏΠΈΡΠΎΠ»ΠΈΠ·Π½ΠΎΠ³ΠΎ ΡΠ΅Π°ΠΊΡΠΎΡΠ° ΠΏΠΎΠ·Π²ΠΎΠ»ΡΠ΅Ρ Π½Π°ΠΉΡΠΈ ΠΎΠΏΡΠΈΠΌΠ°Π»ΡΠ½ΡΠ΅ ΡΡΠ»ΠΎΠ²ΠΈΡ ΠΎΡ
Π»Π°ΠΆΠ΄Π΅Π½ΠΈΡ ΠΏΠ΅ΡΠ²ΠΈΡΠ½ΡΡ
ΠΏΡΠΎΠ΄ΡΠΊΡΠΎΠ² ΠΏΠΈΡΠΎΠ»ΠΈΠ·Π° Π±ΠΈΠΎΠΌΠ°ΡΡΡ, ΠΎΡΡΡΠ΅ΡΡΠ²Π»ΡΠ΅ΠΌΠΎΠ³ΠΎ ΠΏΡΠΈ ΠΎΠΏΡΠ΅Π΄Π΅Π»Π΅Π½Π½ΡΡ
ΡΠ΅ΠΌΠΏΠ΅ΡΠ°ΡΡΡΠ°Ρ
. ΠΡΠ΅Π΄ΡΡΠ°Π²Π»Π΅Π½Ρ Π³ΡΠ°ΡΠΈΠΊΠΈ Π·Π°Π²ΠΈΡΠΈΠΌΠΎΡΡΠΈ ΡΠΊΠ°Π·Π°Π½Π½ΠΎΠ³ΠΎ ΠΏΠ°ΡΠ°ΠΌΠ΅ΡΡΠ° ΠΎΡ ΡΠ΅ΠΌΠΏΠ΅ΡΠ°ΡΡΡΡ ΠΏΡΠΎΡΠ΅ΡΡΠ° ΡΠ΅ΡΠΌΠΎΡ
ΠΈΠΌΠΈΡΠ΅ΡΠΊΠΎΠΉ ΠΊΠΎΠ½Π²Π΅ΡΡΠΈΠΈ Π΄ΡΠ΅Π²Π΅ΡΠ½ΠΎΠΉ Π±ΠΈΠΎΠΌΠ°ΡΡΡ Π΄Π»Ρ ΡΠ°Π·Π»ΠΈΡΠ½ΡΡ
ΡΠΊΠΎΡΠΎΡΡΠ΅ΠΉ ΠΎΡ
Π»Π°ΠΆΠ΄Π΅Π½ΠΈΡ. ΠΠΎΠΊΠ°Π·Π°Π½ΠΎ, ΡΡΠΎ ΠΌΠ°ΠΊΡΠΈΠΌΠ°Π»ΡΠ½ΠΎ Π²ΠΎΠ·ΠΌΠΎΠΆΠ½ΡΠΉ ΠΈΡ
Π²ΡΡ
ΠΎΠ΄ ΠΎΠ±Π΅ΡΠΏΠ΅ΡΠΈΠ²Π°Π΅ΡΡΡ ΠΏΡΠΈ ΡΠ΅ΠΌΠΏΠ΅ΡΠ°ΡΡΡΠ΅ Π² ΡΠ΅Π°ΠΊΡΠΎΡΠ΅ 923β973 Π ΠΈ ΡΠΊΠΎΡΠΎΡΡΠΈ ΠΎΡ
Π»Π°ΠΆΠ΄Π΅Π½ΠΈΡ 700000β1200000 Π³ΡΠ°Π΄./ΠΌΠΈΠ½. ΠΠ΄Π½Π°ΠΊΠΎ ΡΡΡΠ°Π½ΠΎΠ²Π»Π΅Π½ΠΈΠ΅ ΡΠ°ΠΊΠΎΠΉ ΡΠΊΠΎΡΠΎΡΡΠΈ β Π΄ΠΎΡΡΠ°ΡΠΎΡΠ½ΠΎ ΡΠ»ΠΎΠΆΠ½Π°Ρ ΡΠ΅Ρ
Π½ΠΈΡΠ΅ΡΠΊΠ°Ρ Π·Π°Π΄Π°ΡΠ°. ΠΠΎΡΡΠΎΠΌΡ ΠΏΡΠΈ ΠΎΡΡΡΠ΅ΡΡΠ²Π»Π΅Π½ΠΈΠΈ ΡΠ΅Ρ
Π½ΠΎΠ»ΠΎΠ³ΠΈΠΉ ΠΏΠΎΠ»ΡΡΠ΅Π½ΠΈΡ ΠΆΠΈΠ΄ΠΊΠΈΡ
ΠΏΡΠΎΠ΄ΡΠΊΡΠΎΠ² ΠΏΠΈΡΠΎΠ»ΠΈΠ·Π° ΠΎΠ³ΡΠ°Π½ΠΈΡΠΈΠ²Π°ΡΡΡΡ ΡΠ΅ΠΌΠΏΠ΅ΡΠ°ΡΡΡΠ°ΠΌΠΈ 773β800 Π, ΠΏΡΠΈ ΠΊΠΎΡΠΎΡΡΡ
ΠΌΠΎΠΆΠ½ΠΎ Π΄ΠΎΡΡΠΈΡΡ ΠΏΡΠ°ΠΊΡΠΈΡΠ΅ΡΠΊΠΈ ΡΠ΅Π°Π»ΠΈΠ·ΡΠ΅ΠΌΠΎΠΉ ΡΠΊΠΎΡΠΎΡΡΠΈ ΠΎΡ
Π»Π°ΠΆΠ΄Π΅Π½ΠΈΡ ΠΏΠ΅ΡΠ²ΠΈΡΠ½ΡΡ
ΠΏΡΠΎΠ΄ΡΠΊΡΠΎΠ² ΡΠ°Π·Π»ΠΎΠΆΠ΅Π½ΠΈΡ Π±ΠΈΠΎΠΌΠ°ΡΡΡ
ΠΠΎΠ»ΡΡΠ΅Π½ΠΈΠ΅ Π²ΡΡΠΎΠΊΠΎΠΏΠΎΡΠΈΡΡΠΎΠ³ΠΎ ΡΠ³Π»Π΅ΡΠΎΠ΄Π½ΠΎΠ³ΠΎ ΠΌΠ°ΡΠ΅ΡΠΈΠ°Π»Π° Ρ ΠΏΡΠΈΠΌΠ΅Π½Π΅Π½ΠΈΠ΅ΠΌ ΡΠ΅ΡΠΌΠΎΡ ΠΈΠΌΠΈΡΠ΅ΡΠΊΠΎΠΉ ΠΊΠΎΠ½Π²Π΅ΡΡΠΈΠΈ Π΄ΡΠ΅Π²Π΅ΡΠ½ΠΎΠΉ Π±ΠΈΠΎΠΌΠ°ΡΡΡ ΠΏΠΎΠ΄ Π΄Π°Π²Π»Π΅Π½ΠΈΠ΅ΠΌ
A method is presented for obtaining activated carbons (highly porous carbon materials) based on plant (wood) raw materials using a developed and manufactured experimental setup, consisting of a steam generator, a superheater, a pyrolysis and activation chamber and a cooler with a heat exchanger with forced convection. The analysis of the features of chemical and physical activation of charcoal, obtained by pyrolysis of wood raw materials, is carried out, and a conclusion is made about the advantage of physical activation, based on the use of water vapor as an activating agent. A description of the results of experimental studies carried out using the developed installation is given. These results confirm the conclusions of other studies that excessive pressure increases the mass yield of solid products formed during the thermochemical conversion of plant biomass. It was found that an increase in pressure, at which pyrolysis occurs, leads to an increase in the carbon content in charcoal. So, with an increase in pressure at which pyrolysis was carried out, from 1 to 8 atm, the carbon content in charcoal increased from 88.3 to 93.7 wt.%. Data on the efficiency of physical activation of solid products of pyrolysis of woody biomass using water vapor are presented and a conclusion is made that this direction is promising in the development of the foundations for the production of highly porous carbon materials.ΠΡΠ΅Π΄ΡΡΠ°Π²Π»Π΅Π½ ΠΌΠ΅ΡΠΎΠ΄ ΠΏΠΎΠ»ΡΡΠ΅Π½ΠΈΡ Π°ΠΊΡΠΈΠ²ΠΈΡΠΎΠ²Π°Π½Π½ΡΡ
ΡΠ³Π»Π΅ΠΉ (Π²ΡΡΠΎΠΊΠΎΠΏΠΎΡΠΈΡΡΡΡ
ΡΠ³Π»Π΅ΡΠΎΠ΄Π½ΡΡ
ΠΌΠ°ΡΠ΅ΡΠΈΠ°Π»ΠΎΠ²) Π½Π° Π±Π°Π·Π΅ ΡΠ°ΡΡΠΈΡΠ΅Π»ΡΠ½ΠΎΠ³ΠΎ (Π΄ΡΠ΅Π²Π΅ΡΠ½ΠΎΠ³ΠΎ) ΡΡΡΡΡ Ρ ΠΈΡΠΏΠΎΠ»ΡΠ·ΠΎΠ²Π°Π½ΠΈΠ΅ΠΌ ΡΠ°Π·ΡΠ°Π±ΠΎΡΠ°Π½Π½ΠΎΠΉ ΠΈ ΠΈΠ·Π³ΠΎΡΠΎΠ²Π»Π΅Π½Π½ΠΎΠΉ ΡΠΊΡΠΏΠ΅ΡΠΈΠΌΠ΅Π½ΡΠ°Π»ΡΠ½ΠΎΠΉ ΡΡΡΠ°Π½ΠΎΠ²ΠΊΠΈ, ΡΠΎΡΡΠΎΡΡΠ΅ΠΉ ΠΈΠ· ΠΏΠ°ΡΠΎΠ³Π΅Π½Π΅ΡΠ°ΡΠΎΡΠ°, ΠΏΠ°ΡΠΎΠΏΠ΅ΡΠ΅Π³ΡΠ΅Π²Π°ΡΠ΅Π»Ρ, ΠΊΠ°ΠΌΠ΅ΡΡ ΠΏΠΈΡΠΎΠ»ΠΈΠ·Π° ΠΈ Π°ΠΊΡΠΈΠ²Π°ΡΠΈΠΈ ΠΈ ΠΎΡ
Π»Π°Π΄ΠΈΡΠ΅Π»Ρ Ρ ΡΠ΅ΠΏΠ»ΠΎΠΎΠ±ΠΌΠ΅Π½Π½ΠΈΠΊΠΎΠΌ Ρ ΠΏΡΠΈΠ½ΡΠ΄ΠΈΡΠ΅Π»ΡΠ½ΠΎΠΉ ΠΊΠΎΠ½Π²Π΅ΠΊΡΠΈΠ΅ΠΉ. ΠΡΠΎΠ²Π΅Π΄Π΅Π½ Π°Π½Π°Π»ΠΈΠ· ΠΎΡΠΎΠ±Π΅Π½Π½ΠΎΡΡΠΈ Ρ
ΠΈΠΌΠΈΡΠ΅ΡΠΊΠΎΠΉ ΠΈ ΡΠΈΠ·ΠΈΡΠ΅ΡΠΊΠΎΠΉ Π°ΠΊΡΠΈΠ²Π°ΡΠΈΠΈ Π΄ΡΠ΅Π²Π΅ΡΠ½ΠΎΠ³ΠΎ ΡΠ³Π»Ρ, ΠΏΠΎΠ»ΡΡΠ°Π΅ΠΌΠΎΠ³ΠΎ ΠΏΡΡΠ΅ΠΌ ΠΏΠΈΡΠΎΠ»ΠΈΠ·Π° Π΄ΡΠ΅Π²Π΅ΡΠ½ΠΎΠ³ΠΎ ΡΡΡΡΡ, ΠΈ ΡΠ΄Π΅Π»Π°Π½ Π²ΡΠ²ΠΎΠ΄ ΠΎ ΠΏΡΠ΅ΠΈΠΌΡΡΠ΅ΡΡΠ²Π΅ ΡΠΈΠ·ΠΈΡΠ΅ΡΠΊΠΎΠΉ Π°ΠΊΡΠΈΠ²Π°ΡΠΈΠΈ Π½Π° ΠΎΡΠ½ΠΎΠ²Π΅ ΠΏΡΠΈΠΌΠ΅Π½Π΅Π½ΠΈΡ Π²ΠΎΠ΄ΡΠ½ΠΎΠ³ΠΎ ΠΏΠ°ΡΠ° Π² ΠΊΠ°ΡΠ΅ΡΡΠ²Π΅ Π°ΠΊΡΠΈΠ²ΠΈΡΡΡΡΠ΅Π³ΠΎ Π°Π³Π΅Π½ΡΠ°. ΠΠ°Π½ΠΎ ΠΎΠΏΠΈΡΠ°Π½ΠΈΠ΅ ΡΠ΅Π·ΡΠ»ΡΡΠ°ΡΠΎΠ² ΡΠΊΡΠΏΠ΅ΡΠΈΠΌΠ΅Π½ΡΠ°Π»ΡΠ½ΡΡ
ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΠΉ, Π²ΡΠΏΠΎΠ»Π½Π΅Π½Π½ΡΡ
Ρ ΠΈΡΠΏΠΎΠ»ΡΠ·ΠΎΠ²Π°Π½ΠΈΠ΅ΠΌ ΡΠ°Π·ΡΠ°Π±ΠΎΡΠ°Π½Π½ΠΎΠΉ ΡΡΡΠ°Π½ΠΎΠ²ΠΊΠΈ. ΠΡΠΈ ΡΠ΅Π·ΡΠ»ΡΡΠ°ΡΡ ΠΏΠΎΠ΄ΡΠ²Π΅ΡΠΆΠ΄Π°ΡΡ Π²ΡΠ²ΠΎΠ΄Ρ Π΄ΡΡΠ³ΠΈΡ
ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΠΉ ΠΎ ΡΠΎΠΌ, ΡΡΠΎ ΠΈΠ·Π±ΡΡΠΎΡΠ½ΠΎΠ΅ Π΄Π°Π²Π»Π΅Π½ΠΈΠ΅ ΠΏΠΎΠ²ΡΡΠ°Π΅Ρ ΠΌΠ°ΡΡΠΎΠ²ΡΠΉ Π²ΡΡ
ΠΎΠ΄ ΡΠ²Π΅ΡΠ΄ΡΡ
ΠΏΡΠΎΠ΄ΡΠΊΡΠΎΠ², ΠΎΠ±ΡΠ°Π·ΡΡΡΠΈΡ
ΡΡ Π² ΠΏΡΠΎΡΠ΅ΡΡΠ΅ ΡΠ΅ΡΠΌΠΎΡ
ΠΈΠΌΠΈΡΠ΅ΡΠΊΠΎΠΉ ΠΊΠΎΠ½Π²Π΅ΡΡΠΈΠΈ ΡΠ°ΡΡΠΈΡΠ΅Π»ΡΠ½ΠΎΠΉ Π±ΠΈΠΎΠΌΠ°ΡΡΡ. Π£ΡΡΠ°Π½ΠΎΠ²Π»Π΅Π½ΠΎ, ΡΡΠΎ ΠΏΠΎΠ²ΡΡΠ΅Π½ΠΈΠ΅ Π΄Π°Π²Π»Π΅Π½ΠΈΡ, ΠΏΡΠΈ ΠΊΠΎΡΠΎΡΠΎΠΌ ΠΎΡΡΡΠ΅ΡΡΠ²Π»ΡΠ΅ΡΡΡ ΠΏΠΈΡΠΎΠ»ΠΈΠ·, ΠΏΡΠΈΠ²ΠΎΠ΄ΠΈΡ ΠΊ ΡΠΎΡΡΡ ΡΠΎΠ΄Π΅ΡΠΆΠ°Π½ΠΈΡ ΡΠ³Π»Π΅ΡΠΎΠ΄Π° Π² Π΄ΡΠ΅Π²Π΅ΡΠ½ΠΎΠΌ ΡΠ³Π»Π΅. Π’Π°ΠΊ, ΠΏΡΠΈ ΠΏΠΎΠ²ΡΡΠ΅Π½ΠΈΠΈ Π΄Π°Π²Π»Π΅Π½ΠΈΡ, ΠΏΡΠΈ ΠΊΠΎΡΠΎΡΠΎΠΌ ΠΎΡΡΡΠ΅ΡΡΠ²Π»ΡΠ»ΡΡ ΠΏΠΈΡΠΎΠ»ΠΈΠ·, ΠΎΡ 1 Π΄ΠΎ 8 Π°ΡΠΌ ΡΠΎΠ΄Π΅ΡΠΆΠ°Π½ΠΈΠ΅ ΡΠ³Π»Π΅ΡΠΎΠ΄Π° Π² Π΄ΡΠ΅Π²Π΅ΡΠ½ΠΎΠΌ ΡΠ³Π»Π΅ Π²ΠΎΠ·ΡΠ°ΡΡΠ°Π»ΠΎ ΠΎΡ 88,3 Π΄ΠΎ 93,7 ΠΌΠ°Ρ.%. ΠΡΠ΅Π΄ΡΡΠ°Π²Π»Π΅Π½Ρ Π΄Π°Π½Π½ΡΠ΅ ΠΏΠΎ ΡΡΡΠ΅ΠΊΡΠΈΠ²Π½ΠΎΡΡΠΈ ΡΠΈΠ·ΠΈΡΠ΅ΡΠΊΠΎΠΉ Π°ΠΊΡΠΈΠ²Π°ΡΠΈΠΈ ΡΠ²Π΅ΡΠ΄ΡΡ
ΠΏΡΠΎΠ΄ΡΠΊΡΠΎΠ² ΠΏΠΈΡΠΎΠ»ΠΈΠ·Π° Π΄ΡΠ΅Π²Π΅ΡΠ½ΠΎΠΉ Π±ΠΈΠΎΠΌΠ°ΡΡΡ Ρ ΠΈΡΠΏΠΎΠ»ΡΠ·ΠΎΠ²Π°Π½ΠΈΠ΅ΠΌ Π²ΠΎΠ΄ΡΠ½ΠΎΠ³ΠΎ ΠΏΠ°ΡΠ° ΠΈ ΡΠ΄Π΅Π»Π°Π½ Π²ΡΠ²ΠΎΠ΄ ΠΎ ΠΏΠ΅ΡΡΠΏΠ΅ΠΊΡΠΈΠ²Π½ΠΎΡΡΠΈ Π΄Π°Π½Π½ΠΎΠ³ΠΎ Π½Π°ΠΏΡΠ°Π²Π»Π΅Π½ΠΈΡ ΠΏΡΠΈ ΡΠ°Π·ΡΠ°Π±ΠΎΡΠΊΠ΅ ΠΎΡΠ½ΠΎΠ² ΠΏΡΠΎΠΈΠ·Π²ΠΎΠ΄ΡΡΠ²Π° Π²ΡΡΠΎΠΊΠΎΠΏΠΎΡΠΈΡΡΡΡ
ΡΠ³Π»Π΅ΡΠΎΠ΄Π½ΡΡ
ΠΌΠ°ΡΠ΅ΡΠΈΠ°Π»ΠΎΠ²
ΠΡΠΈΠΌΠ΅Π½ΠΈΠΌΠΎΡΡΡ ΡΠΎΠ΅Π΄ΠΈΠ½Π΅Π½ΠΈΠΉ Π½Π° ΠΎΡΠ½ΠΎΠ²Π΅ Π½ΠΈΠΊΠ΅Π»Ρ Π² ΠΊΠ°ΡΠ΅ΡΡΠ²Π΅ ΠΊΠ°ΡΠ°Π»ΠΈΠ·Π°ΡΠΎΡΠΎΠ² ΡΠ΅ΡΠΌΠΎΠΊΠΎΠ½Π²Π΅ΡΡΠΈΠΈ ΠΏΠ΅ΡΠ²ΠΈΡΠ½ΡΡ ΠΏΡΠΎΠ΄ΡΠΊΡΠΎΠ² ΠΏΠΈΡΠΎΠ»ΠΈΠ·Π° Π±ΠΈΠΎΠΌΠ°ΡΡΡ
The paper discusses the results of an experimental study of the thermal decomposition of pyrolytic tar carried out in isothermal conditions at temperatures of 300, 350 and 400 Β°C. It was found that the kinetics of this process can be described using the AvramiβErofeev equation with a variable parameter n. Analysis of the established data showed that the area of variation of this index included values from 0.415 to 1.238. The mean value of the n parameter calculated for all variants of the study was 0.694 (95 % CI from 0.605 to 0.783), and the median value was 0.639. As is known, the AvramiβErofeev equation describes the kinetics of thermal decomposition of matter in the condensed state, determined by the nucleation process. This suggests that in the case of thermal decomposition of pyrolytic tar in the temperature range 300β400 Β°Π‘ this process is the limiting stage of the total process. The pyrolytic tarn decomposition rate was found to increase in the case of introduction of particles of nickel catalyst developed at the Physical and Technical Institute of the National Academy of Sciences of Belarus into the reaction zone. However, only with respect to one sample, it can be confidently stated that this is the result of the catalytic effect of applied nickel catalyst. Based on the established data, it was concluded that it is promising to use a nickel-containing catalyst in the processes of thermal decomposition of heavy hydrocarbons formed in the processes of thermochemical conversion of biomass.ΠΠ±ΡΡΠΆΠ΄Π°ΡΡΡΡ ΡΠ΅Π·ΡΠ»ΡΡΠ°ΡΡ ΡΠΊΡΠΏΠ΅ΡΠΈΠΌΠ΅Π½ΡΠ°Π»ΡΠ½ΠΎΠ³ΠΎ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΡ ΡΠ΅ΡΠΌΠΈΡΠ΅ΡΠΊΠΎΠ³ΠΎ ΡΠ°Π·Π»ΠΎΠΆΠ΅Π½ΠΈΡ ΠΏΠΈΡΠΎΠ»ΠΈΡΠΈΡΠ΅ΡΠΊΠΎΠΉ ΡΠΌΠΎΠ»Ρ, Π²ΡΠΏΠΎΠ»Π½Π΅Π½Π½ΠΎΠ³ΠΎ Π² ΠΈΠ·ΠΎΡΠ΅ΡΠΌΠΈΡΠ΅ΡΠΊΠΈΡ
ΡΡΠ»ΠΎΠ²ΠΈΡΡ
ΠΏΡΠΈ ΡΠ΅ΠΌΠΏΠ΅ΡΠ°ΡΡΡΠ°Ρ
300, 350 ΠΈ 400 Β°Π‘ Ρ ΠΈΡΠΏΠΎΠ»ΡΠ·ΠΎΠ²Π°Π½ΠΈΠ΅ΠΌ Π½ΠΈΠΊΠ΅Π»ΡΡΠΎΠ΄Π΅ΡΠΆΠ°ΡΠΈΡ
ΠΊΠ°ΡΠ°Π»ΠΈΠ·Π°ΡΠΎΡΠΎΠ² ΡΠΈΡΡΠ΅ΠΌΡ NiβFeβMo. ΠΠΎΠΊΠ°Π·Π°Π½ΠΎ, ΡΡΠΎ ΠΊΠΈΠ½Π΅ΡΠΈΠΊΡ ΡΡΠΎΠ³ΠΎ ΠΏΡΠΎΡΠ΅ΡΡΠ° ΠΌΠΎΠΆΠ½ΠΎ ΠΎΠΏΠΈΡΠ°ΡΡ Ρ ΠΏΠΎΠΌΠΎΡΡΡ ΡΡΠ°Π²Π½Π΅Π½ΠΈΡ ΠΠ²ΡΠ°ΠΌΠΈβΠΡΠΎΡΠ΅Π΅Π²Π° Ρ ΠΏΠ΅ΡΠ΅ΠΌΠ΅Π½Π½ΡΠΌ ΠΏΠΎΠΊΠ°Π·Π°ΡΠ΅Π»Π΅ΠΌ n, ΠΏΡΠΈ ΡΡΠΎΠΌ ΠΎΠ±Π»Π°ΡΡΡ ΠΈΠ·ΠΌΠ΅Π½Π΅Π½ΠΈΡ ΡΡΠΎΠ³ΠΎ ΠΏΠΎΠΊΠ°Π·Π°ΡΠ΅Π»Ρ ΡΠΎΡΡΠ°Π²Π»ΡΠ΅Ρ ΠΎΡ 0,415 Π΄ΠΎ 1,238. Π‘ΡΠ΅Π΄Π½Π΅Π΅ Π·Π½Π°ΡΠ΅Π½ΠΈΠ΅ ΠΏΠΎΠΊΠ°Π·Π°ΡΠ΅Π»Ρ n, ΡΠ°ΡΡΡΠΈΡΠ°Π½Π½ΠΎΠ΅ ΠΏΠΎ Π²ΡΠ΅ΠΌ Π²Π°ΡΠΈΠ°Π½ΡΠ°ΠΌ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΡ, ΡΠ°Π²Π½ΠΎ 0,694 (95 % ΠΠ ΠΎΡ 0,605 Π΄ΠΎ 0,783), Π° ΠΌΠ΅Π΄ΠΈΠ°Π½Π½ΠΎΠ΅ Π·Π½Π°ΡΠ΅Π½ΠΈΠ΅ β 0,639. ΠΠ°ΠΊ ΠΈΠ·Π²Π΅ΡΡΠ½ΠΎ, ΡΡΠ°Π²Π½Π΅Π½ΠΈΠ΅ ΠΠ²ΡΠ°ΠΌΠΈβΠΡΠΎΡΠ΅Π΅Π²Π° ΠΎΠΏΠΈΡΡΠ²Π°Π΅Ρ ΠΊΠΈΠ½Π΅ΡΠΈΠΊΡ ΡΠ΅ΡΠΌΠΈΡΠ΅ΡΠΊΠΎΠ³ΠΎ ΡΠ°Π·Π»ΠΎΠΆΠ΅Π½ΠΈΡ Π²Π΅ΡΠ΅ΡΡΠ²Π° Π² ΠΊΠΎΠ½Π΄Π΅Π½ΡΠΈΡΠΎΠ²Π°Π½Π½ΠΎΠΌ ΡΠΎΡΡΠΎΡΠ½ΠΈΠΈ, ΠΊΠΎΡΠΎΡΠ°Ρ ΠΎΠΏΡΠ΅Π΄Π΅Π»ΡΠ΅ΡΡΡ ΠΏΡΠΎΡΠ΅ΡΡΠΎΠΌ Π·Π°ΡΠΎΠ΄ΡΡΠ΅ΠΎΠ±ΡΠ°Π·ΠΎΠ²Π°Π½ΠΈΡ. ΠΡΡΠΊΠ°Π·Π°Π½ΠΎ ΠΏΡΠ΅Π΄ΠΏΠΎΠ»ΠΎΠΆΠ΅Π½ΠΈΠ΅, ΡΡΠΎ Π² ΡΠ»ΡΡΠ°Π΅ ΡΠ΅ΡΠΌΠΈΡΠ΅ΡΠΊΠΎΠ³ΠΎ ΡΠ°Π·Π»ΠΎΠΆΠ΅Π½ΠΈΡ ΠΏΠΈΡΠΎΠ»ΠΈΡΠΈΡΠ΅ΡΠΊΠΎΠΉ ΡΠΌΠΎΠ»Ρ Π² ΠΈΠ½ΡΠ΅ΡΠ²Π°Π»Π΅ ΡΠ΅ΠΌΠΏΠ΅ΡΠ°ΡΡΡ 300β400 Β°Π‘ Π΄Π°Π½Π½ΡΠΉ ΠΏΡΠΎΡΠ΅ΡΡ ΡΠ²Π»ΡΠ΅ΡΡΡ Π»ΠΈΠΌΠΈΡΠΈΡΡΡΡΠ΅ΠΉ ΡΡΠ°Π΄ΠΈΠ΅ΠΉ ΡΡΠΌΠΌΠ°ΡΠ½ΠΎΠ³ΠΎ ΠΏΡΠΎΡΠ΅ΡΡΠ°. ΠΠ±Π½Π°ΡΡΠΆΠ΅Π½ΠΎ, ΡΡΠΎ ΡΠΊΠΎΡΠΎΡΡΡ ΡΠ°Π·Π»ΠΎΠΆΠ΅Π½ΠΈΡ ΠΏΠΈΡΠΎΠ»ΠΈΡΠΈΡΠ΅ΡΠΊΠΎΠΉ ΡΠΌΠΎΠ»Ρ Π²ΠΎΠ·ΡΠ°ΡΡΠ°Π΅Ρ Π² ΡΠ»ΡΡΠ°Π΅ Π²Π½Π΅ΡΠ΅Π½ΠΈΡ Π² ΡΠ΅Π°ΠΊΡΠΈΠΎΠ½Π½ΡΡ Π·ΠΎΠ½Ρ ΡΠ°ΡΡΠΈΡ Π½ΠΈΠΊΠ΅Π»ΡΡΠΎΠ΄Π΅ΡΠΆΠ°ΡΠ΅Π³ΠΎ ΠΊΠ°ΡΠ°Π»ΠΈΠ·Π°ΡΠΎΡΠ°, ΡΠ°Π·ΡΠ°Π±ΠΎΡΠ°Π½Π½ΠΎΠ³ΠΎ ΡΠΏΠ΅ΡΠΈΠ°Π»ΠΈΡΡΠ°ΠΌΠΈ Π€ΠΈΠ·ΠΈΠΊΠΎ-ΡΠ΅Ρ
Π½ΠΈΡΠ΅ΡΠΊΠΎΠ³ΠΎ ΠΈΠ½ΡΡΠΈΡΡΡΠ° ΠΠ°ΡΠΈΠΎΠ½Π°Π»ΡΠ½ΠΎΠΉ Π°ΠΊΠ°Π΄Π΅ΠΌΠΈΠΈ Π½Π°ΡΠΊ ΠΠ΅Π»Π°ΡΡΡΠΈ. ΠΠ° ΠΎΡΠ½ΠΎΠ²Π°Π½ΠΈΠΈ ΡΡΡΠ°Π½ΠΎΠ²Π»Π΅Π½Π½ΡΡ
Π΄Π°Π½Π½ΡΡ
ΡΠ΄Π΅Π»Π°Π½ Π²ΡΠ²ΠΎΠ΄ ΠΎ ΠΏΠ΅ΡΡΠΏΠ΅ΠΊΡΠΈΠ²Π½ΠΎΡΡΠΈ ΠΈΡΠΏΠΎΠ»ΡΠ·ΠΎΠ²Π°Π½ΠΈΡ Π½ΠΈΠΊΠ΅Π»ΡΡΠΎΠ΄Π΅ΡΠΆΠ°ΡΠ΅Π³ΠΎ ΠΊΠ°ΡΠ°Π»ΠΈΠ·Π°ΡΠΎΡΠ° Π² ΠΏΡΠΎΡΠ΅ΡΡΠ°Ρ
ΡΠ΅ΡΠΌΠΈΡΠ΅ΡΠΊΠΎΠ³ΠΎ ΡΠ°Π·Π»ΠΎΠΆΠ΅Π½ΠΈΡ ΡΡΠΆΠ΅Π»ΡΡ
ΡΠ³Π»Π΅Π²ΠΎΠ΄ΠΎΡΠΎΠ΄ΠΎΠ², ΠΎΠ±ΡΠ°Π·ΡΡΡΠΈΡ
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ΡΠ΅ΡΠΌΠΎΡ
ΠΈΠΌΠΈΡΠ΅ΡΠΊΠΎΠΉ ΠΊΠΎΠ½Π²Π΅ΡΡΠΈΠΈ Π±ΠΈΠΎΠΌΠ°ΡΡΡ
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