دورية
INFLUENCE OF CHAR PROPERTIES ON REACTION RATES
| العنوان: | INFLUENCE OF CHAR PROPERTIES ON REACTION RATES |
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| المؤلفون: | Sears, J. T., Tamhankar, S. S., Radman, A., Wen, C. Y., Chen, T. C. |
| المصدر: | Chemical Engineering Communications; October 1985, Vol. 38 Issue: 1-2 p17-32, 16p |
| مستخلص: | The reaction of coal char is affected by the char morphology, which is dependent on the temperature and pressure at which the char is prepared. Char properties, such as surface area (by CO2 adsorption) and diffusion coefficients of CO2 in char have been measured for chars prepared at 900-1200°C and at pressure to 16 atm at 900°C. The diffusion coefficient results strongly indicate Knudsen or activated surface diffusion. The surface areas and diffusion coefficients decrease in general at higher preparation temperatures, but have a maximum at 1000°C. There is an apparent relationship between these observations and the reactivity results which demonstrate unusual behavior above 1000°C. |
| قاعدة البيانات: | Supplemental Index |
PDF full text from Publisher | تدمد: | 00986445 15635201 |
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| DOI: | 10.1080/00986448508911293 |