Affiliations: [a] Department of Industrial Technology, Simón Bolívar University, Camurí Grande, Venezuela | [b] Department of Thermodynamics and Transport Phenomena, Simón Bolívar University, Caracas, Venezuela
Abstract: This paper aims to study the equivalence ratio, the carbon efficiency and
the mass ratio of steam - biomass in accordance to the temperature in a
fluidized bed reactor. Regarding the modeling, hydrodynamic considerations,
reaction kinetics and mass balances were applied in terms of the reaction
rate processes of the main reactions participating in the residual biomass
gasification, adiabatic and isothermal operation, with L/D about 23, bed
made in modeling Silica Sand with an average spherical particle diameter of
0.275 mm and a height of a 1.4 m reactor, while the biomass is gasified pine
sawdust (Pinus Arizonica Engelm). It was found that the efficiency decreases as coal increases
hydrogen production with an average percent deviation of about 3.5%. The
equivalence ratio increased with a temperature of 700-900°C, with
an average percentage deviation of 2.8%. When increasing the relation
steam-biomass, the percentage in weight produced by hydrogen is increased
with an average percentage deviation of 5.9%.
