CATALYTIC STEAM REFORMING OF TOLUENE POST-GASIFICATION USING AS MODEL COMPOUND OF TAR PRODUCED BY BIOMASS GASIFICATION

CATALYTIC STEAM REFORMING OF TOLUENE POST-GASIFICATION USING AS MODEL COMPOUND OF TAR PRODUCED BY BIOMASS GASIFICATION

SILVA, J. D.; OLIVEIRA, C. C. B.; ABREU, C. A. M.

Artigo:

ABSTRACT-The study presents a mathematical model to analyze the dynamic evolution of molar concentrations of toluene (C7H8), water vapor (H2O) carbon monoxide (CO), hydrogen (H2), methane (CH4) and carbon dioxide (CO2) in a catalytic reactor of fixed bed. The mathematical model was discretized using the method of lines (MDLs) to transform the system of partial differential equations (PDEs) in a system of ordinary differential equations (ODEs). The system of ODEs has been solved by the implementation of the method of Runge-Kutta Gill to estimate the chemical species C7H8, H2, CO, H2, CH4 and CO2.The estimation allows the quantification of individual forecasts of the variables presented in this study. However, valuable information can be obtained from the estimated behaviors in catalytic fixed bed reactor. The model has allowed the validation of chemical species (H2, CO and CO2) by comparing the optimized values. Additionally, the concentrations for chemical species C7H8, H2, CO, H2, CH4 and CO2 was

ABSTRACT-The study presents a mathematical model to analyze the dynamic evolution of molar concentrations of toluene (C7H8), water vapor (H2O) carbon monoxide (CO), hydrogen (H2), methane (CH4) and carbon dioxide (CO2) in a catalytic reactor of fixed bed. The mathematical model was discretized using the method of lines (MDLs) to transform the system of partial differential equations (PDEs) in a system of ordinary differential equations (ODEs). The system of ODEs has been solved by the implementation of the method of Runge-Kutta Gill to estimate the chemical species C7H8, H2, CO, H2, CH4 and CO2.The estimation allows the quantification of individual forecasts of the variables presented in this study. However, valuable information can be obtained from the estimated behaviors in catalytic fixed bed reactor. The model has allowed the validation of chemical species (H2, CO and CO2) by comparing the optimized values. Additionally, the concentrations for chemical species C7H8, H2, CO, H2, CH4 and CO2 was

Palavras-chave:

DOI: 10.5151/chemeng-cobeq2014-0846-23339-138116

Referências bibliográficas

• [1] Bona, S., Guillén, P. J., Alcalte, G., García, L., Bilbao, R. 2008, Toluene Steam Reforming Using Co-precipitated Ni/Al Catalysts Modified with Lanthanum or Cobalt, Chemical Engineering Journal, 137, 587-597.
• [2] Oliveira C.C.B., da Silva J.D., 2012, Dynamic modelling of the gasification region of a bubbling fluidized bed gasifier, Chemical Engineering Transactions, 29, 841-846, doi: 10.3303/CET1229141.
• [3] Silva J.D., Abreu C.A.M., 2012, Mathematical modeling of a three-phase trickle bed reactor. Brazilian Journal of Chemical. Engineering, 29(3), 567-576, doi:10.1590/S0104-66322012000300014.
• [4] Silva J. D., 2012, Dynamic Modelling for a trickle-bed reactor using the numerical inverse Laplace transform technique. Procedia Engineering., 42, 454-470. doi: 10.1016/j.proeng.2012.07.437.
• [5] Xiu, G.; Li, P.; Rodrigues, A. E.,2002, New Generalized for improving sorption-enhanced reaction process, Chemical Engineering Science, 58, 3425-3437.
• [6] Yao B. Y.; Anh N. P., Changkook R.; Vida S.; Jim S., 2007, Mathematical modelling of slow pyrolysis of segregated solid wastes in a packed-bed pyrolyser. Fuel, 86, 169-180.
• [7] Zhao B.; Zhang X.; Chem L.; Qu R.; Meng G.; Yi X.; Sun L., 2010, Steam Reforming of Toluene as Model Compound of Biomass Pyrolysis Tar for Hydrogen. Biomass and Bioenergy, 34, 140-144.

Como citar:

SILVA, J. D.; OLIVEIRA, C. C. B.; ABREU, C. A. M.; "CATALYTIC STEAM REFORMING OF TOLUENE POST-GASIFICATION USING AS MODEL COMPOUND OF TAR PRODUCED BY BIOMASS GASIFICATION", p-10221-10228. In: Anais do XX Congresso Brasileiro de Engenharia Química - COBEQ 2014 [= Blucher Chemical Engineering Proceedings, v.1, n.2]. São Paulo: Blucher, 2015.
ISSN 23591757, DOI 10.5151/chemeng-cobeq2014-0846-23339-138116