masterThesis
Implementação de um modelo computacional para estudo do processo Fischer-Tropsch em reator de leito de lama
Fecha
2010-09-30Registro en:
BEZERRA, Marcio Barbalho Dantas. Implementação de um modelo computacional para
estudo do processo Fischer-Tropsch em reator de leito de lama. 2010. 97 f. Dissertação (Mestrado em Pesquisa e Desenvolvimento de Tecnologias Regionais) - Universidade Federal do Rio Grande do Norte, Natal, 2010.
Autor
Bezerra, Marcio Barbalho Dantas
Resumen
This work aims at the implementation and adaptation of a computational model for the
study of the Fischer-Tropsch reaction in a slurry bed reactor from synthesis gas
(CO+H2) for the selective production of hydrocarbons (CnHm), with emphasis on
evaluation of the influence of operating conditions on the distribution of products
formed during the reaction.The present model takes into account effects of rigorous
phase equilibrium in a reactive flash drum, a detailed kinetic model able of predicting
the formation of each chemical species of the reaction system, as well as control loops
of the process variables for pressure and level of slurry phase. As a result, a system of
Differential Algebraic Equations was solved using the computational code DASSL
(Petzold, 1982). The consistent initialization for the problem was based on phase
equilibrium formed by the existing components in the reactor. In addition, the index of
the system was reduced to 1 by the introduction of control laws that govern the output
of the reactor products. The results were compared qualitatively with experimental data
collected in the Fischer-Tropsch Synthesis plant installed at Laboratório de
Processamento de Gás - CTGÁS-ER-Natal/RN