Double-bed gasification unit and method
A technology for a gasification device and a gasification furnace, which is applied in the field of gasification, can solve the problem that the calorific value of gas is difficult to greatly increase, and achieve the effects of reducing the amount of pollutants, improving the quality of gas, and reducing damage
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[0045] Example one
[0046] In this embodiment, a 10t / h circulating fluidized bed-moving bed twin bed low-stage coal gasification is used as a specific example to illustrate the patent in detail.
[0047] Among them, this embodiment uses air and water vapor as gasification agents, and the device used in this embodiment is as figure 2 As shown, it mainly includes: pyrolysis furnace 1, gasification furnace 2, pyrolysis gas condensation separator 3, and synthesis gas cooler 4.
[0048] The pyrolysis furnace 1 is a moving bed pyrolysis furnace, and its coal inlet is connected to the coal supply system; its semi-coke outlet is connected to the gasification furnace 21 of the gasifier 2 through the semi-coke inlet through the return ramp; Its heat carrier inlet is connected with the material leg of the separator 22 of the gasification furnace 2; its pyrolysis gas outlet is connected with the pyrolysis gas inlet of the pyrolysis gas condensation separator 3.
[0049] The gasification furnace...
Example Embodiment
[0060] Example two
[0061] In this embodiment, a 10t / h fluidized bed-rotating bed twin bed low-order coal gasification in which the gasification agent is a mixture of air and water vapor is taken as a specific example. Among them, this embodiment uses oxygen-enriched carbon dioxide gas and water vapor as gasification agents.
[0062] image 3 It is a schematic diagram of a double bed gasification device of a rotating bed pyrolysis furnace of the present invention, such as image 3 As shown, the double-bed gasification device of this embodiment mainly includes: a pyrolysis furnace 1, a gasification furnace 2, a pyrolysis gas condensation separator 3, and a synthesis gas cooler 4.
[0063] Wherein, the pyrolysis furnace 1 is a rotating bed pyrolysis furnace, and its coal inlet is connected with the coal supply system; its semi-coke outlet is connected with the semi-coke inlet of the gasification furnace 21 of the gasifier 2; its inlet The combustion gas port is connected with the g...
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