Hot Strength of Coke Prepared by Briquetting and Carbonization of Lignite

Yasuhiro SAITO, Aska MORI, Shinji KUDO, Jun Ichiro HAYASHI

Research output: Contribution to journalArticlepeer-review

Abstract

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.

Original languageEnglish
Pages (from-to)2511-2515
Number of pages5
Journalisij international
Volume62
Issue number12
DOIs
Publication statusPublished - Dec 2022

All Science Journal Classification (ASJC) codes

  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

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