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Latin American applied research
versão impressa ISSN 0327-0793
Resumo
CARDOSO, M.; AVELAR COSTA, G. A.; DE OLIVEIRA, E. D. e RAVAGNANI, S. P.. Simulation of eucalyptus kraft black liquor combustion in industrial recovery boilers. Lat. Am. appl. res. [online]. 2012, vol.42, n.2, pp.197-204. ISSN 0327-0793.
In this study, the performance of a "kraft" black liquor recovery boiler was analyzed using WinGEMS, a commercial simulator software. The operational variables and design parameters of a pulp industrial unit in southeastern Brazil provides the input data used in setting up the material and energy balance equations in the simulator program. The simulations allowed the prediction of thermal efficiency as a function of solid content in the liquor, in which an increase of 10% in steam generation was obtained when dry solids were increased from 72% to 100%, the latter being a hypothetical operational condition. This study also determined that in spite of making accurate predictions about the temperature profile along the recovery boiler, WinGEMS does not correctly predict the profile of combustion gases when burning eucalyptus black liquor.
Palavras-chave : Black Liquor; Recovery Boilers; Combustion and Simulations.