Author(s)

S.A. Coutinho, J.J.N. Alves, W.P. Martignoni & M. Mori

Abstract

Modelling and simulation of gas-solid flows in riser reactors S.A. coutinho1, J.J.N. ~ l v e s ' , W.P. ~ a r t i ~ n o n i ~ & M. ~ o r i ~ Department of Chemical Engineering, Federal University of Campina Grande, Brazil Superintendence of Oil Shale Industrialization, Petrobras S.A-Brazilian Petroleum Company, Brazil 3 Department of Chemical Process, State University of Campinas, Brazil Abstract In the processing of the petroleum, the catalytic cracking unit is of basic importance. In this unit, the fractions of low aggregate value are transformed into fractions of high commercial value. This work presents numerical results of the fluid dynamics of gas-solid flow in risers. The two-phase flow model, which treats the gas and particulate phases as two continuum fluid phases, was used. The effects of the riser geometry and the stress model for particulate phase in the particle concentration were obtained. The predicted results by using the Kinetic Theory of Granular Flows Model (KTGF), which was

Keywords