工业丙烷气化与热解法制备炭黑

Production of High Quality Carbon Black by Gasification and Pyrogenation of Industrial Propane

以工业丙烷为燃料,分别以空气和氧气为供氧方式,通过不完全燃烧的方法制备了炭黑产品.产物杂质含量为0,20目筛余物为0,150μm筛余物为'无'.对燃料的气化和热解过程及其对产物的影响进行了分析,通过TEM及XRD等手段对其粒径、形貌、吸油值、pH值等主要性能进行了表征.结果表明,其尺寸在10～40nm之间.以氧气为原料的炭黑pH值明显低于以空气为原料的炭黑.但以空气或氧气为原料对产物的其它性能影响不大.得到了炭黑产量最高的工况.

High purity carbon black of 10~40 nm was synthesized by industry propane/O2 flame and propane/air flame in both gasification regime and pyrolysis regime. The effect of fuel/O2 ration was investigated on the DBP and pH values, particle size and morphology. The experimental results show that the carbon black synthesized in gasification regime is suitable as filler materials, whereas, the carbon black synthesized in pyrolysis regime has higher performance in conductivity and wear. And the optimal conditions for the highest yield of carbon black were obtained to be C3H8 1.2910-3 mol/s, air rate 1.51210-2 mol/s.