TY - JOUR
T1 - Hot Strength of Coke Prepared by Briquetting and Carbonization of Lignite
AU - SAITO, Yasuhiro
AU - MORI, Aska
AU - KUDO, Shinji
AU - HAYASHI, Jun Ichiro
N1 - Funding Information:
This work was supported by the 29th ISIJ Research Promotion Grant. Coke A sample was supplied by Nippon Steel Corp. The authors gratefully acknowledge the Cooperative Research Program of “Network Joint Research Center for Materials and Devices” for the support.
Publisher Copyright:
© 2022 The Iron and Steel Institute of, Japan.
PY - 2022/12
Y1 - 2022/12
N2 - The hot strength of coke prepared from an acid-washed lignite by briquetting-carbonization before and after CO2 gasification was, for the first time, investigated in this work. The hot strength at 1 000°C before gasification was higher than coke strength measured at a room temperature. CO2 gasification resulted in a linear decrease of the hot strength with the reaction time. The lignite-coke showed faster decrease in the strength during gasification, compared to conventional cokes derived from caking coal or non-or slightly caking coal, due to the high reactivity caused by its porous structure and catalytic metal species remaining even after the acid-washing, while it showed superior hot strength at the initial stage of gasification.
AB - The hot strength of coke prepared from an acid-washed lignite by briquetting-carbonization before and after CO2 gasification was, for the first time, investigated in this work. The hot strength at 1 000°C before gasification was higher than coke strength measured at a room temperature. CO2 gasification resulted in a linear decrease of the hot strength with the reaction time. The lignite-coke showed faster decrease in the strength during gasification, compared to conventional cokes derived from caking coal or non-or slightly caking coal, due to the high reactivity caused by its porous structure and catalytic metal species remaining even after the acid-washing, while it showed superior hot strength at the initial stage of gasification.
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U2 - 10.2355/isijinternational.ISIJINT-2022-143
DO - 10.2355/isijinternational.ISIJINT-2022-143
M3 - Article
AN - SCOPUS:85144554050
VL - 62
SP - 2511
EP - 2515
JO - Transactions of the Iron and Steel Institute of Japan
JF - Transactions of the Iron and Steel Institute of Japan
SN - 0915-1559
IS - 12
ER -