Simulation and cost analyses in the biodisel production using vegetable oils / Simulação e analise de custos na produção de biodisel a partir de oleos vegetais

AUTOR(ES)

Gean Claudio de Souza Santana

DATA DE PUBLICAÇÃO

2008

RESUMO

Previous works on kinetic data of transesterification reactions of soy, palm, castor, and jatropha curcas oils were used as starting point for the simulation studies carried out in this thesis. It was found that the velocity of the castor bean oil transesterification reaction was higher than for the other oils analyzed, and an explanation for this fact was suggested. The study also obtained existing thermodynamic data for the liquid-liquid equilibria of the components present in the biodiesel production processo These experimental data were used for performing a regression of the results of the liquid-liquid equilibrium, and an adjustment was made for the binary interaction parameters for the NRTL and UNIQUAC activity coefficient models. These parameters were used in the simulations. The simulation results were used to calculate the costs of biodiesel production, with the costs for soy, palm and castor bean oils being, respectively, R$ 3.25/L, R$ 4.66/L and R$ 5.78/L. These costs increased between 1.28 and 10.57% on the price of diesel fuel

ASSUNTO(S)

analise de valor (controle de custo) cost assessment simulação por computador biodisel process simulation biodiesel processos quimicos

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