Department of Mechanical Engineering, Faculty of Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran.
Department of Aerospace Engineering, Faculty of New Science and Technologies, Semnan University, Semnan, Iran.
Waste Manag. 2024 Sep 15;186:198-204. doi: 10.1016/j.wasman.2024.06.017. Epub 2024 Jun 22.
Plasma gasification melting (PGM) provides reliable disposal of toxic medical waste with a low heating value, which is capable of converting waste into energy. This study investigates the performance of experiments on plasma gasification for the treatment of chemical-pharmaceutical medical waste (CPMW) with an air medium. A comparative analysis is performed for gasification characteristics at three reactor temperatures (1000, 1400, and 1800 °C). Moreover, a thermodynamic equilibrium model is developed to assess performance features such as syngas yield, high heating value, and cold gas efficiency in the gasification temperature range of 1000-1800 °C. A comparison of the experiment and computational outcomes shows a good agreement. The results show that the quality of syngas and heating value is improved by increasing the temperature of the plasma gasifier so that at 1800 °C, H, CO, and higher heating value (HHV) are obtained as 41 %, 37 %, and 10 MJ/Nm, respectively. The obtained syngas is a clean fuel with low sulfur-containing and nitrogen-containing. The experimental results provide an extensive comprehension of CPMW gasification in a plasma reactor and consider a possibility for hydrogen and energy production.
等离子体气化熔融（PGM）为低热值有毒医疗废物的可靠处理提供了可靠的方法，能够将废物转化为能源。本研究采用空气介质对化学制药医疗废物（CPMW）进行等离子体气化处理的实验性能进行了研究。在三个反应器温度（1000、1400 和 1800°C）下对气化特性进行了比较分析。此外，还开发了一个热力学平衡模型，以评估气化温度范围为 1000-1800°C 时的合成气产率、高热值和冷煤气效率等性能特征。实验和计算结果的比较表明吻合良好。结果表明，通过提高等离子体气化炉的温度，可以改善合成气的质量和热值，在 1800°C 时，H、CO 和高热值（HHV）分别获得 41%、37%和 10 MJ/Nm。所得合成气是一种清洁燃料，含硫量和含氮量低。实验结果为等离子体反应器中 CPMW 气化提供了广泛的理解，并考虑了生产氢气和能源的可能性。
