Modeling and simulation of a pseudo-two-phase gas-liquid column reactor for thermal hydrocracking of petroleum heavy fractions

Brazilian Journal of Chemical Engineering

E.m. Matos¹  R. Guirardello¹ 

[1] ,Universidade Estadual de Campinas Faculdade de Engenharia Química Departamento de Processos QuímicosCampinas SP ,Brazil

关键词: slurry bubble column;    reactor;    hydrocracking;    heavy oil;    modeling;   

DOI  :  10.1590/S0104-66322002000300007

来源: SciELO

【 摘 要 】

This work presents a model to predict the behavior of velocity, gas holdup and local concentration fields in a pseudo-two-phase gas-liquid column reactor applied for thermal hydrocracking of petroleum heavy fractions. The model is based on the momentum and mass balances for the system, using an Eulerian-Eulerian approach. Using the k-epsilon model,fluid dynamics accounts for both laminar and turbulent flows, with discrete small bubbles (hydrogen) flowing in a continuous pseudohomogeneous liquid phase (oil and catalyst particles). The petroleum is assumed to be a mixture of pseudocomponents, grouped by similar chemical structural properties, and the thermal hydrocracking is taken into account using a kinetic network based on these pseudocomponents.

【 授权许可】

CC BY   
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