Voltar
Artigo Produção Nacional Revisado por pares
BIBTEX RIS

Thermodynamic analysis of supercritical water gasification of methanol, ethanol, glycerol, glucose and cellulose

2009; Elsevier BV; Volume: 34; Issue: 24 Linguagem: Inglês

10.1016/j.ijhydene.2009.10.017

ISSN

1879-3487

Autores

Fernando Augusto Pedersen Voll, C.C.R.S. Rossi, Camila da Silva, Reginaldo Guirardello, Rodrigo O. M. A. de Souza, Vladimir Ferreira Cabral, Lúcio Cardozo‐Filho,

Tópico(s)

Thermochemical Biomass Conversion Processes

Resumo

In the present work the Gibbs free energy minimization, using a non-linear programming formulation and an approximation in the gas fugacities, was used to calculate the equilibrium composition for supercritical water gasification of methanol, ethanol, glycerol, glucose and cellulose. The proposed formulation mathematically ensures finding the global optimal solution with no need of an initial estimate and the numerical results are close to the ones calculated using non-ideal gas formulation. Therefore, the proposed approach is reliable and easy to use, without numerical difficulties, such as an undesirable local minimum. The model predictions show a good agreement with the experimental studies in all cases studied in this work.

Referência(s)