Biomass gasification with air in an atmospheric bubbling fluidized bed. Effect of six operational variables on the quality of the produced raw gas

摘要: Biomass gasification with air in a bubbling fluidized bed is studied small pilot plant. Variables analyzed are equivalence ratio (from 0.20 to 0.45), temperatures of the gasifier (750−850 °C) and its freeboard (500−600 °C), H/C feed, use secondary (10% overall) freeboard, addition (2−5 wt %) calcined dolomite mixed biomass used as feedstock. Using advanced tar gas sampling analysis methods, composition content determined their variation operation parameters given. A statistical effects variables also here presented.