Modeling and Optimization: Isomerization Reaction Rate using Response Surface Methodology with Two Kinetic Model Over Bi-Porous Catalysts | ||
| Journal of Chemical and Petroleum Engineering | ||
| دوره 58، شماره 1، شهریور 2024، صفحه 1-15 اصل مقاله (922.15 K) | ||
| نوع مقاله: Research Paper | ||
| شناسه دیجیتال (DOI): 10.22059/jchpe.2023.346017.1398 | ||
| نویسنده | ||
| Nastaran Parsafard* | ||
| Kosar University of Bojnord, Department of Applied Chemistry, North Khorasan, Iran. | ||
| چکیده | ||
| A response surface methodology (RSM) with 3 levels and 4 variables was used to model and optimize the n-heptane isomerization kinetic process over Pt-HZSM-5/HMS catalysts in a fixed bed micro reactor. 30 sets of isomerization rate tests were performed at different conditions of H2 flow rate (20-45 ccmin−1), n-heptane flow rate (2-4.5 cch−1), the temperatures (200-350 °C), and the weight percent of HZSM-5 (10-40%). It was observed that the amounts of HZSM-5 into Pt-HMS structure has the greatest effect on the rate of reaction. The surface and contour plots confirm that the rates do not considerably change versus temperature, n-heptane and H2 flow rates. 0.24 molg−1s−1 is the highest reaction rate obtained in the 4.5 cch−1 n-heptane and 45 cc min−1 H2 flow rate. The RSM was effective for predicting and optimizing this process. The modelling results also show both power-law and Langmuir–Hinshelwood models are in agreement with the experimental data. | ||
| کلیدواژهها | ||
| Kinetics؛ Langmuir–Hinshelwood Model؛ n-Heptane Isomerization؛ RSM-CCD | ||
| مراجع | ||
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