The Applied Of The Brown Coal Residual Carry Nickle In Biomass Gasification

Bomass is one of the renewable resources, satisfying environmental concerns over fossil fuel usage, permitting to reduce the greenhouse gas emissions and hazy days in China[1]. Biomass gasification is considered as one of the most promising technologies for production of sustainable fuels.Biomass gasification is a thermochemistry conversion technology, which produces synthesis gas with gasification agents in order to improve the efficiency and eliminate the tar to adjust the gas composition. Catalysts used for tar removal are reviewed, including alkaline earth metal and iron series metal.The combined influence of co-gasification of biomass/lignite residue is analyzed in the background of co-gasification of coal and biomass. Catalysts loading nickel lignite residues and Ni/Al2O3 were characterized, to the point of co-gasification process synergy of nickel lignite tar residue and biomass, contrasting with the biomass tar catalyst Ni/Al2O3 comparative experiments, the temperature comparative experiments and the water-carbon ratio comparative experiments, using BET、SEM、TGA、XRD、TEM. The treated lignite residue has a very high production of gasification gas, and can catalytic decomposition of biomass tar. Finally, effect drawing of the constructing test-bed biomass gasification lignite residue is showed.The influence of calcination temperature on Ni/y-Al2O3 reducing conditions and catalytic steam reforming of toluene is studied. The results indicate that the catalyst calcined at 700 ℃ showed good catalytic performance at a reaction temperature of 680 ℃ and maintained a high catalytic activity and stability without pre-reduction. The catalysts are also characterized by BET, XRD, TG-DTG and other ways before and after reaction. As the calcination temperature is raised, the force between nickel and catalyst carrier is gradually enhanced and NiAl2O3 structure increases, which is considered the main reason for the effect of calcination temperature on the catalyst reduction conditions. Finally, the structure of the catalyst calcined at 700 ℃ is further analyzed using TEM, XPS...