Method for preparing hydrogen-rich gas through gas-solid synchronous gasification of pyrolysis gas and biomass charcoal of biomass
A technology of biomass charcoal and pyrolysis gas, which is applied in the direction of manufacturing combustible gas, treating combustible gas with catalysis, and gasification technology to achieve the effects of high carbon conversion rate, high utilization rate and high yield
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Embodiment 1-4
[0034] The raw biomass is put into the hopper 1, and sent into the fluidized bed reactor 3 through the screw feeder 2 (the mass flow rate is 200g / h) for rapid pyrolysis. In the bed reactor 3, S / B=3. The pyrolysis gas and biochar generated by the rapid pyrolysis of biomass enter the entrained bed reactor 4 with the air flow for synchronous gasification reaction of the cracked gas and biochar. The temperature of the entrained bed reactor 4 is 700-850°C (ΔT = 50°C, divided into four separate tests). The product from entrained bed reactor 4 enters cyclone separator 5 to remove ash and then enters fixed bed reactor 7 for catalytic reforming reaction, WHSV is 1, and catalytic reforming reaction temperature is 850°C.
[0035] The reaction results are shown in Table 2 below:
[0036] Table 2
[0037]
Embodiment 5-8
[0039] The raw biomass is put into the hopper 1, and sent into the fluidized bed reactor 3 through the screw feeder 2 (the mass flow rate is 200g / h) for rapid pyrolysis. In the bed reactor 3, S / B=1-4, four experiments were carried out separately. The pyrolysis gas and biochar generated by the rapid pyrolysis of biomass enter the entrained bed reactor 4 with the airflow for synchronous gasification reaction of the pyrolysis gas and biochar. The temperature of the entrained bed reactor 4 is 800°C. The product from the reactor 4 enters the cyclone separator 5 to obtain residual solids, and the condensable gases condense to obtain tar.
[0040] The reaction results are shown in Table 3 below:
[0041] table 3
[0042]
[0043]
Embodiment 9-12
[0045] The raw biomass is put into the hopper 1, and sent into the fluidized bed reactor 3 through the screw feeder 2 (the mass flow rate is 200g / h) for rapid pyrolysis. In the bed reactor 3, S / B=3. The pyrolysis gas and biochar generated by the rapid pyrolysis of biomass enter the entrained bed reactor 4 with the air flow for synchronous gasification of the pyrolysis gas and biochar. The temperature of the entrained bed reactor 4 is 850°C. The product from entrained bed reactor 4 enters cyclone separator 5 to remove ash and then enters fixed bed reactor 7 for catalytic reforming reaction, WHSV is 1, catalytic reforming reaction temperature is 700-850°C, and is carried out separately Four experiments were performed, each with a temperature difference of 50 degrees.
[0046] The reaction results are shown in Table 4 below:
[0047] Table 4
[0048]
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