Abstract
The exploitation of fossil fuels and greenhouse gas emissions have brought great attention to the utilization of biomass fuel resources. The scholars researcher Were studied with thermo gravimetric mass spectrometry instrument in this paper, four kinds of biomass paralysis gas product characteristics, the small fixed bed is used for rice husk, straw paralysis experiment, the analysis of the microstructure of carob coal, element composition and phase composition of biomass and coal in fluidized bed gasification experiment. The different mixing ratio, air equivalence ratio, the influence law of water vapour in the fuel quality in the gasification process, the analysis of biomass and coal gasification mechanism are studied to explore the synergistic effect of the gasification process. The average gasification reaction rate of RH coal, DWG coal coke and YX coal coke is very different. The average gasification reaction rate of RH coal, DWG coal coke and Yx coal coke in the 0.1mpa paralysis was 1.04s-1, 0.58s-1, and 0.95 s-1. The average gasification reaction rate of the RH was 1.8 times that of DWG coal coke gasification reaction rate. Therefore, we can conclude that RH coal gasification reactivity is the best, YX coal is the second, and DWG coal is the worst. In addition, we can also compare the influence of paralysis pressure on coal coke gasification reactivity. No matter RH, DWG coal or Yx coal, the paralysis pressure increases, the average gasification reaction rate decreases and the gasification reactivity deteriorates. Especially 0.1 MPa paralysis pressure average Yx char gasification reaction rate significantly greater than 0.5 MPa, and 3. The average MPa paralysis pressure Yx char gasification reaction rate is shown in figure 2. Gasification reaction rate and the total carbon conversion rate trend is consistent.
