Experimental Study of Fluidized Bed Gasifier using Coir Pitch, Rise Husk, Saw Dust - A Review

A great interest in environment friendly alternative energy sources that can reduce dependency on fossil fuels has been rising. The conversion of biomass to chemical energy commonly takes via thermo-chemical and bio-chemical tools. Among thermo-chemical conversion, gasification converts biomass into burnable gases, such as H2, CO, CH4 that can be used in boilers and in internal combustion engine or turbine to produce electricity generation. Fluidized beds are used for a wide variety of fuels; this flexibility with respect to different fuels is actually another stronghold of fluidized beds. The fluidization principle is straight forward: passing a fluid upward through a filled bed of solids produces a pressure drop due to fluid drag. Several researchers had worked on bubbling fluidized bed gasifier and use sized biomass like sawdust, rise husk, coir pitch, and olive pits, and coconut shell. But with biomass used as fuel in fluidized bed Gasifier with good quality of producer gas can be achieve by changing equivalence ratio and fluidization velocity.