Computational Fluid Dynamics Of A Semi Batch Reactor For Heavy Oil Hydroconversion

This work presents the numerical results of the computational fluid dynamics of a semi batch reactor used for hydroconversion of heavy oil. The reactor is a multicomponent system, and it is modeled as a pseudo two phase system (gas+slurry). The equations used are the continuity equations, the momentum equation (Navier-Stokes), and the k-ε for turbulence. The numerical method used to solve the mathematical method was the finite volume, where the problem was divided in two domains, in order to account for the moving part of the impeller. The numerical results indicated convergence of the procedure for the velocity profiles. © 2009 American Institute of Physics.1148 2281284Yamada, T.S., Guirardello, R., Kinetics and fluid dynamics for oil residue hydroconversion in commercial software (2007) IntemationalJoumal of Reactor Engineering, 5, pp. 1-10Bertodano, M.L., Lahey, R.T., Jones, O.C., Development of a k-s model for bubbly two phase flow (1994) Trans. ASME J. Fluids Eng, 116, p. 128Bertodano, M.L., Lahey, R.T., Jones, O.C., Phase distribution in bubble two phase flow in vertical ducts (1994) Int. J. Multiphase F/ow, 20, p. 805Grace, J.R., Weber, M.E., Hydrodynamics of drops and bubbles (1982) Handbook of Multiphase Systems, , ed. G. Hetsroni, HemispherePedersen, K.S., Fredenslund, A., Thomassen, P., (1990) Properties of Oils and Natural Gases, , Gulf Publishing Company, Book DivisionAlmeida, R.M., Guirardello, R., Hydroconversion kinetics of Marlim vacuum residue (2005) Catalysis Today, 109 (1-4), pp. 104-111Launder, B.E., Spalding, D.B., The numerical computation of turbulent flows, Comput (1974) Methods Appl. Mech. Eng, 3, pp. 269-28