摘要：Since 1978, Brazil has invested.into bio-fuels alternatives, especially ethanol from sugar-cane processing and.that has increased.the bagasse prod.ction, which requires proper d.stination and.a potential use of such biomass is the gasification process. In the present stud., a conceptual d.sign of a gasification system to convert sugar cane bagasse into syngas is presented. which consid.rs air as gasification agent in a flexible configuration of bubbling fluid.zed.bed.reactor operating from atmospheric pressure up to 2 MPa, provid.ng a net power output （referred.at gas cold.cond.tions） of 3 MWt and.66 MWt, respectively. In this last case, the gas may be used.not just as a fuel for gas turbines and.internal combustion engines for power generation but also to feed.Fischer-Tropsch processes. The optimized.conceptual d.sign of the gasifier is d.scribed.here and.was achieved.using the CSFMB （Comprehensive Simulator of Fluid.zed.and.Moving Bed.Equipment）. Simulations pred.cted.the prod.ction of gas with high heating value as well stable operations at both cond.tions. The conceptual d.sign would.be followed.by the d.tailed.one and.construction. Tests would.be carried.in the near future and.would.allow d.rect comparison between the calculated.and.experimental results.