塑料与煤低温共焦化产物分析

Analysis of Product Distribution of Low-Temperature Co-Carbonization of Coal with Plastics

利用固定床反应器模拟煤的低温干馏实验条件，对4种塑料、八一焦煤单独热解及不同比例塑料与煤共热解的产物分布进行了研究．结果表明，塑料的添加基本不影响煤的半焦收率，可使气体的产率增加，提高气相中脂肪烃的含量，并对八一焦煤的焦化过程具有增油降水效应，表明二者间存在协同效应．另外在常压N2气氛及300℃恒温下，考察了不同恒温时间对PVC脱氯效率的影响，实验结果表明恒温5h其脱氯效率可达97％，同时可以获得工业盐酸，是一种有效的脱氯方法．

The distribution of products from low temperature pyrolysis of four kinds of plastics and coal and from co－carbonization of coal with plastics was researched using a fixed bed reactor． The result shows that the addition of plastics has no influence on carbocoal yield but can increase the yield of gas， and has a good effect of increasing coal tar and decreasing water, indicating that there is a synergism between coal and plastics. In additon, dechlorization of PVC was performed in the same reactor under nitrogen atmosphere at 300℃ and the effect of reaction time on the dechlorization yield(DY) was investigated,showing that the DY of PVC could reach 97％ when reaction time was longer than 5h．