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Desulfurization And Tar Removal From Gasifier Effluents Using Mixed Rare Earth Oxides, Sumana Adusumilli
Desulfurization And Tar Removal From Gasifier Effluents Using Mixed Rare Earth Oxides, Sumana Adusumilli
LSU Master's Theses
Biomass gasification is a promising source of fuels. However, hydrogen sulphide, tars and other by-products must be removed from the raw gas because they deactivate downstream reforming and water gas shift catalysts. The goal of this project is to find the best REO combination for simultaneous tar cracking and desulfurization of gasifier effluents and to find the sorbents that are stable at high operating temperatures of gasifiers. Simultaneous tar cracking and H2S removal from a simulated gasifier effluent was tested using different rare earth mixed oxide (REO) catalysts/sorbents based on Ce/LaOx, Ce/La/MOx and Ce/La/M2Ox/Al2O3 where M is a transition metal …