Open AccessCombustion comparison analysis on two typical Shenhua chars
Author(s) -
Baixiang Xiang,
Jun Huang,
Houzhang Tan,
Yan Li,
Binqiao Han
Publication year - 2021
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/675/1/012172
Subject(s) - char , combustibility , combustion , thermogravimetric analysis , pyrolysis , autoignition temperature , ignition system , materials science , coke , particle size , chemical engineering , coal , particle (ecology) , waste management , chemistry , organic chemistry , metallurgy , thermodynamics , engineering , geology , physics , oceanography
Shenhun and Shitan coal are two types of typical Shenhua coals in Shenhua Group. To compare the ignition and burn out characters of this two coals, the pyrolysis process was adopted and Shenhun, Shitan two chars were acquired. The thermogravimetric method(TGA) was used to evaluate two chars combustion characters. Results show that the combustibility of Shenhun char samples are better than that of Shitan char samples. Both the two types of chars DTG peak temperature are approximate 600-650 °C, indicating an easier ignition tendency. The increase of pyrolysis temperature is adverse to the coke combustion. The DTG peak temperature in 700 °C pyrolysis temperature condition is 50 °C larger than that in 900 °C. In addition, the larger particle size is not beneficial to burn out. From the results in this paper, the particle size below 125 μm is recommended.