焦煤与不同种类废塑料共焦化的研究

采用10g常压固定床反应器、热天平和偏光显微镜，对太钢炼焦煤中添加不同种类废塑料（如HDPE，LDPE，PP和PS）后热解的产品分布、半焦的光学特性以及热重行为进行了研究。结果表明：煤和塑料的热解温度范围和峰温的差异决定二者协同作用的程度；四种塑料的添加对净焦煤的半焦收率无明显影响；当添加HDPE、LDPE、PP时，焦煤的焦油收率增加，热解水收率下降，但添加PS时的情况正相反；除了PP外，添加其它各类的塑料能增加半焦中的光学各向异性组织的含量。

CO-CARBONIZATION OF COKING COAL WITH DIFFERENT WASTE PLASTICS

Using 10g atmospheric fixed-bed reactor, thermo-balance and polarized optical microscope, the influence of adding different waste plastics such as waste HDPE, LDPE, PP and PS on the product distribution, optical properties of coke and the thermogravimetric behavior of a coking coal was studied. The result showed that the difference in the decomposition range and peak temperature between TC and waste plastics determined the extent of synergism between them. The addition of these four waste plastics has no obvious effect on the coke yield of TC coal. When HDPE, LDPE or PP was added into TC, the tar yield of pure TC increased and the water yields decreased. However, for waste PS, the case was just the opposite. HDPE, LDPE and PS increased the volume percentage of anisotropy, while PP did not affect the optical textures of resultant coke.