Low-temperature ignition of coal particles in an airflow

Research output: Contribution to journalArticle

23 Citations (Scopus)

Abstract

A numerical study of the low-temperature (less than 500 K) ignition of a single coal particle within the framework of a model taking into account the interrelated processes of heat transfer in the particle and the surrounding gaseous medium, thermal decomposition of the coal, diffusion of decomposition products (volatiles) and their oxidation, heating of the coke residue (carbon), and heterogeneous ignition is carried out. The integral characteristic (delay time) of the low-temperature gas-phase ignition of the products of the thermal decomposition of 50- to 500-μm coal particles are determined. The minimum temperature of the air medium at which the ignition of the volatiles occurs and the lowest surface temperature of the particle at which its heterogeneous ignition after the burnout of the volatiles occurs are evaluated.

Original languageEnglish
Pages (from-to)242-249
Number of pages8
JournalRussian Journal of Physical Chemistry B
Volume9
Issue number2
DOIs
Publication statusPublished - 1 Mar 2015

Fingerprint

Coal
coal
ignition
Ignition
thermal decomposition
Pyrolysis
Temperature
burnout
coke
products
Coke
surface temperature
Time delay
time lag
Carbon
Gases
heat transfer
vapor phases
Heat transfer
Decomposition

Keywords

  • carbon
  • coal particle
  • coke residue
  • gas-phase and heterogeneous ignition
  • ignition delay times
  • oxidation
  • thermal decomposition
  • volatiles

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry

Cite this

Low-temperature ignition of coal particles in an airflow. / Glushkov, D. O.; Kuznetsov, G. V.; Strizhak, P. A.

In: Russian Journal of Physical Chemistry B, Vol. 9, No. 2, 01.03.2015, p. 242-249.

Research output: Contribution to journalArticle

@article{0014993d401e4a8ba3a56ef8619928af,
title = "Low-temperature ignition of coal particles in an airflow",
abstract = "A numerical study of the low-temperature (less than 500 K) ignition of a single coal particle within the framework of a model taking into account the interrelated processes of heat transfer in the particle and the surrounding gaseous medium, thermal decomposition of the coal, diffusion of decomposition products (volatiles) and their oxidation, heating of the coke residue (carbon), and heterogeneous ignition is carried out. The integral characteristic (delay time) of the low-temperature gas-phase ignition of the products of the thermal decomposition of 50- to 500-μm coal particles are determined. The minimum temperature of the air medium at which the ignition of the volatiles occurs and the lowest surface temperature of the particle at which its heterogeneous ignition after the burnout of the volatiles occurs are evaluated.",
keywords = "carbon, coal particle, coke residue, gas-phase and heterogeneous ignition, ignition delay times, oxidation, thermal decomposition, volatiles",
author = "Glushkov, {D. O.} and Kuznetsov, {G. V.} and Strizhak, {P. A.}",
year = "2015",
month = "3",
day = "1",
doi = "10.1134/S1990793115020050",
language = "English",
volume = "9",
pages = "242--249",
journal = "Russian Journal of Physical Chemistry B",
issn = "1990-7931",
publisher = "Maik Nauka-Interperiodica Publishing",
number = "2",

}

TY - JOUR

T1 - Low-temperature ignition of coal particles in an airflow

AU - Glushkov, D. O.

AU - Kuznetsov, G. V.

AU - Strizhak, P. A.

PY - 2015/3/1

Y1 - 2015/3/1

N2 - A numerical study of the low-temperature (less than 500 K) ignition of a single coal particle within the framework of a model taking into account the interrelated processes of heat transfer in the particle and the surrounding gaseous medium, thermal decomposition of the coal, diffusion of decomposition products (volatiles) and their oxidation, heating of the coke residue (carbon), and heterogeneous ignition is carried out. The integral characteristic (delay time) of the low-temperature gas-phase ignition of the products of the thermal decomposition of 50- to 500-μm coal particles are determined. The minimum temperature of the air medium at which the ignition of the volatiles occurs and the lowest surface temperature of the particle at which its heterogeneous ignition after the burnout of the volatiles occurs are evaluated.

AB - A numerical study of the low-temperature (less than 500 K) ignition of a single coal particle within the framework of a model taking into account the interrelated processes of heat transfer in the particle and the surrounding gaseous medium, thermal decomposition of the coal, diffusion of decomposition products (volatiles) and their oxidation, heating of the coke residue (carbon), and heterogeneous ignition is carried out. The integral characteristic (delay time) of the low-temperature gas-phase ignition of the products of the thermal decomposition of 50- to 500-μm coal particles are determined. The minimum temperature of the air medium at which the ignition of the volatiles occurs and the lowest surface temperature of the particle at which its heterogeneous ignition after the burnout of the volatiles occurs are evaluated.

KW - carbon

KW - coal particle

KW - coke residue

KW - gas-phase and heterogeneous ignition

KW - ignition delay times

KW - oxidation

KW - thermal decomposition

KW - volatiles

UR - http://www.scopus.com/inward/record.url?scp=84929148169&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84929148169&partnerID=8YFLogxK

U2 - 10.1134/S1990793115020050

DO - 10.1134/S1990793115020050

M3 - Article

AN - SCOPUS:84929148169

VL - 9

SP - 242

EP - 249

JO - Russian Journal of Physical Chemistry B

JF - Russian Journal of Physical Chemistry B

SN - 1990-7931

IS - 2

ER -