Hydrogen Preparation From Catalytic Gasification Of Bio-oil

Energy is the material base of industrial development and social progress, shortage of energy and environmental pollution caused by fossil energy long-term large-scale mining have affected people's life seriously, seeking for the clean renewable new energy receives the attention, and the biomass energy is one kind of renewable energy source which is full of developing potential extremely. Compare bio-oil, which is the liquid product obtained by bio-mass fast decomposition, with biomass, bio-oil has storagement, transportation and operation easier, also energy density higher et al many superiorities. Therefore the biomass energy hydrogen preparation mainly use catalysis gasification, take the biological oil as raw material. This is one economy feasible hydrogen preparation method, and has the prospect for development.This article mainly researched bio-oil and the bio-oil simulation glycerol catalyzes the gasified system hydrogen in the fixed bed reactor, used self-made catalyst key inspected the influence of temperature, water carbon ratio and material liquid flow quantity to fixed bed biology oil and biological oil simulation glycerol catalysis gasification hydrogen production, while studied the catalyst the deactivation reason and the regeneration method. The result indicated that temperature and the water carbon ratio were important effect on the hydrogen production rate. The high temperature was advantageous to reaction, but elevated temperature continually could not obtain the ideal hydrogen production rate, the reason was that the biological oil had the decomposition or the polymerization easily under the high temperature. The high water carbon ratio could promote the intermediary product moisture transformation, which was advantageous to biological oil component's responsion. The best technological conditions of biology oil catalysis gasification hydrogen product, under the atmospheric pressure and took dolomite-Ni/MgO as the catalyst, were the reaction temperature 650℃, reaction time 10min, the water carbon ratio 14, the carrier gas airspeed is 0.25m3·h-1, the biological oil stream quantity is 8g·min-1, the obtained hydrogen production rate reaches as high as 67.5%, the carbon element selectivity reaches as high as 72.8%. The best technological conditions of glycerol catalysis gasification hydrogen reaction were the reaction temperature 650℃, reaction time 10min, the water carbon ratio 10, the carrier gas airspeed is 0.2m3·h-1, the biological oil stream quantity is 6g-min-1, the obtained hydrogen production rate reaches as high as 75.4%, the carbon element selectivity reaches as high as 78.8%. According to the analysis of the catalyst carbon deposition quantity and the XRD, the main reason of catalyst deactivation was that the catalyst surface carbon deposition had stopped up the catalyst passageway.Figure [24] table [12] reference[68]...