Speaker
JIANBO ZHONG
(School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing)
Description
The composition and thermal performance of coke affected by zinc vapor was
investigated in this work. Two different kinds of experiments were employed in this
paper. The first experiment was that coke absorbed zinc vapor in a muffle furnace at
1300 °C. From SEM/EDS analysis of the treated coke samples and thermodynamic
calculation(used by the FactSage software), it was found that zinc was not able to
react with minerals in coke, suggesting that zinc vapor could hardly be absorbed into
coke when the temperature is higher than its boiling point. The second experiment
was further to simulate the practical situation in blast furnace where coke was exposed
to zinc vapor at high temperature region, so CRI test at the atmosphere of zinc vapor
was conducted. Results presented that no changes in thermal performance of coke
happened, proving no catalytic effect of zinc vapor on the coke gasification reaction.
Therefore, it was concluded that zinc, in the form of vapor, did not affect coke in blast
furnace.
Author
JIANBO ZHONG
(University of Science and Technology Beijing)
Co-authors
DI ZHAO
(University of Science and Technology Beijing)
GUANGWEI WANG
(University of Science and Technology Beijing)
JIANLIANG ZHANG
(University of Science and Technology Beijing)
KEJIANG LI
(University of Science and Technology Beijing)
RUNSHENG XU
(University of Science and Technology Beijing)
ZHENGJIAN LIU
(University of Science and Technology Beijing)