Modelling And Simulation Of Gas-solid Flows In Riser Reactors
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
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