The reason of low recovery rate of tar in coke product was analyzed; the recovery rate of tar was increased by decreasing the oven-roof temperature and adjusting operating conditions.
分析了焦炭生产中焦油回收率低的原因，通过降低炉顶温度和调整工艺操作，提高了焦油的回收率。
2
Individual indexes of the produced coke of Yanzhou and Datong coal before and after lowtemperature pyrolysis treatment are studied.
对低温热解处理前后的兖州和大同煤制得的焦炭进行了各项指标的研究。
3
The burning-off energy of coke burnt-offat high temperature is higher than that of coke burnt-off at lowtemperature.