Open AccessCombustion Performance and Kinetic Analysis of Shenhua Raw Coal Mixed Coal Gasification Slag
Author(s) -
Yunfei Wang,
Fu-Shen Zhang,
Zhimin Zheng,
Huiqi Wang,
Feng Wang
Publication year - 2020
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/545/1/012039
Subject(s) - coal , combustion , ignition system , mixing (physics) , slag (welding) , raw material , coal combustion products , metallurgy , autoignition temperature , kinetic energy , materials science , chemistry , energy value of coal , thermodynamics , physics , organic chemistry , quantum mechanics
In this paper, Shenhua coal and its gasification slag (GS) in Ordos are taken as the research objects. The thermogrmetric analyzer is used to investigate the mixed combustion characteristics of different proportions. The experimental results show that Shenhua raw coal mixed with GS can improve the overall ignition and burnout characteristics of mixed coal to some extent. With the increase of the mixing amount of GS, the combustion characteristic temperature of coal samples presents an overall trend of increase in ignition point temperature ( T i ) and burnout temperature ( T b ). When the GS content is 50%, the maximum weight loss temperature ( T max ) is the highest. The mixing amount of GS is not equal to the change of sample mass. The comprehensive combustion characteristic S decreases with the increase of GS content.When the mixing amount of GS was 50%, the minimum apparent activation energy obtained was 87.11kJ/mol.