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本文用试制成的加压热天平,测定了八种中国煤在900℃时制成的煤焦在1.2-31 at.和800-1050℃与CO_2反应的活性。结果表明活性同煤品位有很好的相关性,年轻煤的活性大于年老煤。研究了活性随热处理温度(800—1100℃)的变化。在同一气化温度,活性有规则地随制备温度的降低而增加,在同一热处理温度时,活性随气化温度的增加而增加。计算了表观活化能和制备活化能。由1.2—31 at.850—900℃一种褐煤焦在CO—CO_2混合物中气化得到的结果,关联成下列模型: W=K_1Pco_2/1+K_2Pco+K_3Pco_2也讨论了比气化速率和炭转化率的关系。
In this paper, the autoclaved autoclave was used to measure the char reactivity of the eight Chinese coals produced at 900 ℃ at 1.2-31 at. And 800-1050 ℃. The results showed that there was a good correlation between activity and coal grade. Young coal was more active than aged coal. The change of activity with heat treatment temperature (800-1100 ℃) was studied. At the same gasification temperature, the activity increases regularly with the decrease of the preparation temperature. At the same heat treatment temperature, the activity increases with the gasification temperature. The apparent activation energy and the activation energy were calculated. The results obtained from the gasification of a lignite char in a CO-CO 2 mixture at 1.2-31 at. 850-900 ° C correlate to the following model: W = K_1Pco_2 / 1 + K_2Pco + K_3Pco_2 The specific gasification rates and carbon conversions Rate of relationship.