Metall. Res. Technol.
Volume 120, Number 6, 2023
|Number of page(s)||9|
|Published online||13 November 2023|
Study on deterioration behavior of coke during gasification
Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, School of Energy and Environment, Southeast University, Nanjing, PR China
2 State Key Laboratory of Metal Material for Marine Equipment and Application, Anshan, PR China
3 Ansteel Iron & Steel Research Institutes, Anshan, PR China
* e-mail: email@example.com
Accepted: 23 October 2023
The reaction temperature and time on the carbon loss of coke during CO2 gasification were studied. The results showed that there were significant correlations among the reactivity, pulverization rate, and wear resistance. The degree of variation in pulverization rate and wear resistance revealed that coke reactivity changed dramatically as reaction temperature rose. The temperature was also the key factor for coke graphitization. The evolution of the inorganic minerals and pore wall microstructure was investigated after coke gasification. The migration and accumulation of inorganic minerals, such as mullite, calcium ferrite, and iron oxide in coke, were discovered to catalyze the deterioration of the coke pore wall, resulting in the coke powder formation. The graphitization degree of the skin layer was greater than that of the core after high-temperature reactions, which accelerated skin layer separation from the core.
Key words: coke block / coke powder / inorganic minerals / graphitization / microstructure
© EDP Sciences, 2023
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.