Ethylene (CH) and acetylene (CH) are crucial materials in the petrochemical industry, obtained through various processes utilizing natural gas and other hydrocarbon fuels. In this research, the Partially Decoupled Process (PDP) has been investigated through Computational Fluid Dynamics (CFD) simulation to analyze the effects of different parameters on the production of acetylene and ethylene. The evaluated parameters included the mass flow rate ratio, fuel preheating temperature, the addition of ethane and propane to the fuel, the addition of H, CO, and HO to the inlet feed and, reducing the jet inlet diameter. The results showed that an increase in the mass flow rate leads to an increase in the mole fraction of C (CH + CH) in the reactor outlet. Furthermore, the substitution of 30 % methane with a combination of 20 % ethane and 10 % propane has resulted in a 6 % increase in the mole fraction of CH, a 43 % reduction in the mole fraction of CH, and a 5.6 % increase in the mole fraction of H at the outlet of the reactor. It was also observed that by decreasing the diameter of the side tubes from 43.3 mm to 20 mm, methane conversion decreases by 1.14 %, and C yield decreases by 46.8 %.

中文翻译：

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部分解耦过程中甲烷生产C2烯烃的数值分析


乙烯 (CH) 和乙炔 (CH) 是石化工业中的重要材料，通过利用天然气和其他碳氢化合物燃料的各种工艺获得。在本研究中，通过计算流体动力学（CFD）模拟研究了部分解耦过程（PDP），以分析不同参数对乙炔和乙烯生产的影响。评估的参数包括质量流量比、燃料预热温度、向燃料中添加乙烷和丙烷、向入口进料中添加H2、CO和H2O以及减小射流入口直径。结果表明，质量流量的增加导致反应器出口中 C (CH + CH) 的摩尔分数增加。此外，用 20% 乙烷和 10% 丙烷的组合替代 30% 甲烷，导致 CH 摩尔分数增加 6%，CH 摩尔分数减少 43%，CH 摩尔分数增加 5.6%。反应器出口处H的摩尔分数。还观察到，通过将侧管直径从 43.3 mm 减小到 20 mm，甲烷转化率降低了 1.14%，C 收率降低了 46.8%。