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Maderas. Ciencia y tecnología

versión On-line ISSN 0718-221X


DURAN-GARCIA, Martin Enrique. Pine sawdust (Pinus arizonica) gasification in a fluidized bed reactor: Analysis of process variables. Maderas, Cienc. tecnol. [online]. 2016, vol.18, n.4, pp.633-650. ISSN 0718-221X.

The hydrothermal gasification of sawdust pine (Pinus arizonica) is a process of thermochemical degradation of polymeric macromolecules in order to produce mainly hydrogen and methane as biofuels. This process can occur in a fluidized bed reactor which allows an appropriate gas-solid, proper temperature management and a faster reaction. The purpose is to model and simulate process variables where this forest biomass is gasified from the respective sensitivity analysis. It is obtained that the conversion of gasification reaction of pine sawdust increases at temperature higher than 900°C, showing a behavior that tends to be isothermal, suggesting an energetically self-sustaining process. In turn, it improved reaction for pine sawdust feed with an optimum particle size diameter of 0,65 mm; it is favored for low ratios steam / biomass fed in reaching the optimal 2,375; and at low air/biomass relationship with an optimum value of 0,289. It is evident that this process is a way of harnessing energy from thermochemical conversion of these wastes and forestry residues.

Palabras clave : Chemical reactor; forest biomass; modeling; simulation; thermochemical process.

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