陕北半焦炭化过程能耗分析

ENERGY CONSUMPTION ANALYSIS OF CARBONIZATION PROCESS OF SEMI-COKE IN NORTHERN SHAANXI

主要对SJ型低温干馏炉生产半焦的过程进行了物料、热量衡算及过程能耗分析．结果表明，SJ型内热式低温干馏炉的半焦理论转化率为63．926%，焦油产率为6．079％，煤气产率为598m^3／t；炉体的热效率为88．90%，热工效率为84．08％，且炉体散热损失仅为4．82％，过程能耗在13．38％～17．92％之间，结合所用低变质煤的成分特征，可说明该过程属于低能耗、高产率、高附加值的洁净生产过程，适合该煤种的综合利用．

It＇s mainly analyzed that the material balance, heat balance calculation and energy consumption of the production process of semi-coke by SJ-low-temperature carbonization furnace. The results showed that, the theoretical semi-coke yield of SJ-low-heat oven is 63. 926 %, tar yield is 6. 079%, gas yield is about 598 m^3/t; with thermal efficiency of 88. 90%, heat efficiency of 84.08%, and heat loss of furnace surface of 4. 82%, and the energy consumption for process is between 13. 38% and 17.92%. Compared the composition characteristics of the low metamorphic coals, it＇s real a low energy consumption, high-yield, high value-added clean production process for the comprehensive utilization of this coal, which has great guiding significance to the sustainable development of the semi-coke industry in Northern Shaanxi.