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Modeling of the Hydrocracking Reactor by the CESE Method | ||
| Journal of Chemical and Petroleum Engineering | ||
| مقاله 8، دوره 54، شماره 1، شهریور 2020، صفحه 91-97 اصل مقاله (431.09 K) | ||
| نوع مقاله: Research Paper | ||
| شناسه دیجیتال (DOI): 10.22059/jchpe.2020.291086.1297 | ||
| نویسندگان | ||
| Armin Hadianifar1؛ Ahmad Hallajisani* 2؛ Sorood Zahedi3 | ||
| 1Fouman Faculty of Engineering, College of Engineering, University of Tehran, | ||
| 2Caspian faculty of Engineering, College of Engineering, University of Tehran | ||
| 3Research Institute of Petroleum Industry, Catalyst Research Center | ||
| چکیده | ||
| In this article, the improved space-time conservation element and solution element (CESE) method are used to simulate the dynamic treatment of the hydrocracking reactor. The dynamic model consists of four lumps: vacuum gas oil (VGO), middle distillate, naphtha, and gas which is dissolved by this method. The offered method can solve the partial differential equations caused by the reactions inside the hydrocracking reactor. In this study, both temperature and mole fraction variables are solved explicitly and simultaneously. In the CESE method, to obtain a suitable answer to the dynamic model, a CFL insensitive scheme was used which, for the CESE method to be stable, the CFL number should be less than 1. In this work, obtained results from the CESE method, in good agreement with the data industry. Outcomes illustrate that AAD% of the yield forecast for the middle distillate, naphtha, and gas are 3.33%, 2.56 %, and 6.47%, respectively. This method unlike other contractual numerical methods treats with space and time coordinates Similar. | ||
| کلیدواژه‌ها | ||
| CESE؛ Hydrocracking؛ Kinetic model؛ Modeling | ||
| مراجع | ||
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[1] Kumar A, Sinha S. Steady State Modeling and Simulation of Hydrocracking Reactor. Petroleum & Coal. 2012 Mar 1;54(1):59-64 [2] Liu Z, Zheng Y, Wang W, Zhang Q, Jia L. Simulation of hydrotreating of light cycle oil with a system dynamics model. Applied Catalysis A: General. 2008 May 1;339(2):209-20. [3] Chang SC. A new numerical framework for solving conservation laws: the method of space-time conservation element and solution element. National Aeronautics and Space Administration; 1991. [4] Chang SC. The method of space-time conservation element and solution element—a new approach for solving the Navier-Stokes and Euler equations. Journal of Computational Physics. 1995 Jul 1;119(2):295-324. [5] Chang SC. New developments in the method of space-time conservation element and solution element: Applications to the Euler and Navier-Stokes equations. National Aeronautics and Space Administration, Lewis Research Center; 1993. [6] Wang XY, Chow CY, Chang SC. Numerical simulation of flows caused by shock-body interaction. InFluid Dynamics Conference 1996 Jun (p. 2004). [7] Wang XY, Chang SC, Jorgenson P. Prediction of sound waves propagating through a nozzle without/with a shock wave using the space-time CE/SE method. In38th Aerospace Sciences Meeting and Exhibit 2000 Mar 1:2000-0222. [8] Hua S. Space-time conservation element and solution element (CESE) method for computational fluid dynamics. King Abdullah University of Science & Technology Extreme Computing Research Center. 2019 [9] Yang DX. Numerical analysis of drop coalescence in cavity flow using CESE method. AIP Advances. 2020 May 1;10(5):055116. [10] Sadighi S, Ahmad A, Shirvani M. Comparison of lumping approaches to predict the product yield in a dual bed VGO hydrocracker. International Journal of Chemical Reactor Engineering. 2012 Feb 3;9(1). [11] Chang SC. The method of space-time conservation element and solution element—a new approach for solving the Navier-Stokes and Euler equations. Journal of Computational Physics. 1995 Jul 1;119(2):295-324. [12] Chang S, Wang X. Courant number insensitive CE/SE Euler scheme. In 38th AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit 2002:3890. | ||
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