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Iranian Journal of Chemistry and Chemical Engineering، جلد ۴۴، شماره ۹، صفحات ۲۴۲۲-۲۴۳۱
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عنوان انگلیسی A Pilot Plant Fixed-Bed Reactor for Dehydrogenation of Heavy Paraffins: Experimental and Numerical Elucidation
چکیده انگلیسی مقاله The first step in producing eco-friendly biodegradable detergents is the dehydrogenation process of heavy paraffins. Despite its importance, a few studies have been conducted on the process. In this paper, the heavy paraffin dehydrogenation process was elucidated using Computational Fluid Dynamics (CFD) to simulate the performance of a pilot-scale fixed-bed reactor, investigate the effects of key operating parameters (temperature, pressure, LHSV, and H₂/HC ratio), and identify the best operating conditions for maximizing mono-olefin yield and selectivity. The validation of CFD simulation results was performed by comparing them with pilot plant data; The absolute relative deviations were less than 5.5%, indicating the adequacy of the simulation was confirmed. The CFD simulation results showed that the paraffin conversion and mono-olefin yield are higher at a lower Hydrogen-to-Hydrocarbon molar ratio (H2/HC). However, the mono-olefin selectivity is higher at higher H2/HC ratios. Therefore, an H2/HC between 4 and 6 would be suggested as the best condition. Also, the conditions to achieve the best system performance were the temperature between 460 and 470 oC and LHSV of 15 hr-1.
کلیدواژه‌های انگلیسی مقاله Fixed bed reactor,CFD,paraffins,mono-olefins,LAB pilot plant
نویسندگان مقاله Aboalfazl Askari |
Chemical Engineering Department, Yasouj University, Yasouj, I.R. IRAN

Mehdi Ghanbari |
Department of Engineering Sciences, Technical and Vocational University (TVU), Tehran, I.R. IRAN

Kobra Salehi |
Department of Chemical Engineering, Darab Branch, Islamic Azad University, Darab, I.R. IRAN

Feridun Esmaeilzadeh |
Department of Chemical Engineering, School of Chemical and Petroleum Engineering, Shiraz University, Shiraz, I.R. IRAN

نشانی اینترنتی https://ijcce.ac.ir/article_728331_60f2a2fe71c813fbc89098201b11f314.pdf
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