柔性有机堵料热解特性及产物研究

Study on the pyrolysis characteristics and products of flexible organic plugging material

利用热重红外(TG-FTIR)联用技术,通过改变升温速率、粒径大小和气氛等条件,对柔性有机堵料的热解特性进行研究。结果表明,升温速率越慢,热解反应速率越快;较小的颗粒直径更有利于热解反应;在空气气氛下热解烟气中以CO_(2)为主,主要由柔性有机堵料中树脂类物质发生C-O键断裂碳化反应以及无机成分分解产生。热解的冷凝液体成分中含有甲苯、苯并芘、吡啶和喹啉等多种芳香类化合物。热解后的固体残渣进行扫描电镜(SEM)、X射线衍射(XRD)和红外光谱(FTIR)分析,结果表明高温对柔性有机堵料的理化性能产生一定影响。

The thermogravimetric infrared(TG-FTIR)technology was used to study the pyrolysis characteristics of flexible organic plugging materials by changing the heating rate,particle size and atmosphere.The results showed that the faster the heating rate,the slower the pyrolysis reaction proceeded;the smaller particle diameter was more conducive to the pyrolysis reaction;Carbon dioxide was the main component of flue gas generated by pyrolysis in air atmosphere,which was mainly generated by the carbonization reaction of C-O bond fracture of resin materials and the decomposition of inorganic components in flexible organic plugging materials.A variety of aromatic compounds such as toluene,benzopyrene,pyridine and quinoline were found in the condensed liquid components of the pyrolysis of flexible organic plugging materials.Scanning electron microscopy(SEM),X-ray diffraction(XRD)and infrared spectroscopy(FTIR)analysis were performed on the solid residue after the pyrolysis of the flexible organic plugging materials.The results of the scanning electron microscope showed that the high temperature had a certain impact on the physical and chemical properties of the flexible organic plugging materials.