不同热解终温对化产品收率的影响

为了研究不同热解终温对低阶煤热解产品产率及性质的影响,在750,800,850℃的热解温度下,利用1 kg热解和化产品回收装置对煤样进行了模拟热解实验研究。结果表明:3个温度所得兰炭都属于V-1级和FC-1级,750℃时兰炭产率、Vd均较高。气相产物中,H2和CO含量均较高,3个温度中的H2产量均大于40.00%,且850℃含量最高;CO则在750℃时取得最大值(17.14%)。最后对热解化产品的组成及收率进行了分析测定。为了更好地指导生产,对化产品收率及性质的预测应在理论研究的基础上,结合模拟热解实验研究。

Influence of pyrolysis tem rature on yields of chemical products

To study the influence of different pyrolysis temperature on low rank coal pyrolysis product yield and quality ,simulate coal pyrolysis at 750,800,850℃ using 1 kg chemical production recovery equipments. The results show that, at the given temperature, all semicokes are grade V-1 and FC-1, the semicoke yield and V,l is higher at 750℃. H2 and CO are higher than other products in gasification products. H2 production reaches the highest at 850℃ and its yield is more than 40 percent at these three temperatures. The maximum yield of CO2 is 17.14 percent at 750℃. Analyse and determine the components and yields of pyrolysis products. To better guide the production, the analysis and determination should be combined with simulation experiments.