The present study aimed to investigate the reduction behavior of CuO particles under the gaseous atmosphere generated by waste tire pyrolysis. Thermodynamics of the reduction process indicated that CuO could be reduced to the metal via the tire (rubber) pyrolysis route in the temperature range 700–900 K. Oxide reduction experiments were conducted as a function of the reactant mass ratio (m_tire/m_CuO) and temperature (600–900 K). The extent of waste pyrolysis increased as the temperature was raised to 900 K. This was accompanied by an increase in the oxide reduction. A significant reduction was attained at m_tire/m_CuO = 1.28 when the reactants were heated to 800 K and 900 K. Adding a small amount of waste high-density polyethylene to the tire sufficed for full CuO reduction. CuO reduction reactions and morphological evolution of flower-type CuO particles to relatively equiaxed Cu particles were discussed in terms of experimental and theoretical findings.

本研究旨在研究废轮胎热解产生的气态气氛下CuO颗粒的还原行为。还原过程的热力学表明，在700–900 K的温度范围内，CuO可以通过轮胎（橡胶）热解路线被还原为金属。氧化还原实验的进行是反应物质量比（m_轮胎/ m _CuO的函数））和温度（600–900 K）。随着温度升高到900 K，废料的热解程度增加。这伴随着氧化物还原的增加。以m_轮胎/ m _CuO达到显着降低 当将反应物加热到800 K和900 K时= 1.28。向轮胎中加入少量废高密度聚乙烯足以完全还原CuO。从实验和理论研究的角度讨论了花型CuO颗粒转变为相对等轴的Cu颗粒的CuO还原反应和形态演变。