Effective diffusivity for CO-CO 2 gas mixture in Hot Briquetting Carbon Composite Iron Ore (CCB) at a temperature range of room temperature to 673 K was measured by Wicke-Kallenbach Method. The results obtained are summarized as follows; (1) Effective diffusivity of CO-CO 2 gas mixture through CCB increased with increasing temperature and fractional reaction of CCB. The effective diffusivity for CO-CO 2 system in CCB was proportional to the 1.50 power of temperature. (2) Kundsen diffusion and surface diffusion are negligible in regard to diffusions of CO and CO 2 in CO-CO 2 gas mixture in CCB. Therefore, diffusions of CO and CO 2 in CO-CO 2 gas mixture in CCB are described by molecular diffusion.
|ジャーナル||Tetsu-To-Hagane/Journal of the Iron and Steel Institute of Japan|
|出版物ステータス||出版済み - 4 6 2009|
All Science Journal Classification (ASJC) codes
- Condensed Matter Physics
- Physical and Theoretical Chemistry
- Metals and Alloys
- Materials Chemistry