Numerical analysis of production of C2 olefins from methane in Partially Decoupled process

IF 5.9 3区 工程技术 Q1 CHEMISTRY, MULTIDISCIPLINARY Journal of Industrial and Engineering Chemistry Pub Date : 2024-07-02 DOI:10.1016/j.jiec.2024.07.002
Maliheh Saravani Ghayour, Seyed Reza Shabanian
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Abstract

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 %.
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部分解耦工艺中甲烷生产 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。本研究通过计算流体动力学(CFD)模拟研究了部分解耦工艺(PDP),分析了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、燃料中乙烷和丙烷的添加量、入口进料中 H、CO 和 HO 的添加量以及喷射入口直径的减小。结果表明,质量流量的增加会导致反应器出口中 C(CH + CH)的摩尔分数增加。此外,用 20% 的乙烷和 10% 的丙烷组合替代 30% 的甲烷,反应器出口处的 CH 分子分数增加了 6%,CH 分子分数减少了 43%,H 分子分数增加了 5.6%。还观察到,将侧管直径从 43.3 毫米减小到 20 毫米,甲烷转化率降低了 1.14%,C 收率降低了 46.8%。
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来源期刊
CiteScore
10.40
自引率
6.60%
发文量
639
审稿时长
29 days
期刊介绍: Journal of Industrial and Engineering Chemistry is published monthly in English by the Korean Society of Industrial and Engineering Chemistry. JIEC brings together multidisciplinary interests in one journal and is to disseminate information on all aspects of research and development in industrial and engineering chemistry. Contributions in the form of research articles, short communications, notes and reviews are considered for publication. The editors welcome original contributions that have not been and are not to be published elsewhere. Instruction to authors and a manuscript submissions form are printed at the end of each issue. Bulk reprints of individual articles can be ordered. This publication is partially supported by Korea Research Foundation and the Korean Federation of Science and Technology Societies.
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