Low-nitrogen combustion circulating fluidized bed system for treating kitchen garbage and application of low-nitrogen combustion circulating fluidized bed system
A circulating fluidized bed and kitchen waste technology, which is applied in the direction of combustion method, combustion type, incinerator, etc., can solve the problems of nitrogen oxides failing to achieve emission reduction, maximize waste heat utilization benefits, reduce emissions, and suppress The effect of emissions
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Embodiment 1
[0090]This embodiment provides a low-nitrogen combustion circulating fluidized bed system for processing kitchen waste, the system includes a garbage press 1, a dryer 2, a crusher 3, a feeder 4, a pyrolysis chamber 5, Chamber 6, return valve 7, cyclone separator 8, superheater 9, economizer 10, air preheater 11, dust collector 12. The press 1, the dryer 2, the crusher 3, the feeder 4, the pyrolysis chamber 5, and the combustion chamber 6 are sequentially connected, and the top of the pyrolysis chamber 5 is provided with a cyclone separator 8, and the cyclone separator 8 is connected to the superheater 9, and the superheater 9, the economizer 10, the air preheater 11, and the dust collector 12 are connected in sequence.
[0091] The process of the system for processing kitchen waste is as follows:
[0092] (1) The kitchen waste first enters the garbage compactor 1 to complete the preliminary dehydration to obtain the wet component and the dry component. The wet component has a...
Embodiment 2
[0097] Compared with Embodiment 1, most of them are all the same, except that in this embodiment, a catalyst bin 13 is also provided between the feeder 4 and the pyrolysis chamber 5, and the catalyst bin 13 is equipped with Ni / CeO of reducing pyrolysis gas generated during pyrolysis of kitchen waste particles 2 nanocatalyst. The Ni / CeO 2 The synthesis process of nanocatalyst is:
[0098] (1) Get cetyltrimethylammonium bromide (3.57g) and disperse it in a mixed solution of n-butanol (7.2ml) and cyclohexane (36ml), then add nickel nitrate hexahydrate aqueous solution (0.6mol / L, 3ml), cerium nitrate hexahydrate aqueous solution (1.8mol / L, 3ml), ammonia solution (25wt%, 11ml), obtain microemulsion after stirring and mixing;
[0099] (2) adjust the pH of the gained microemulsion to 9-10, continue to stir for 1 hour, then stand at room temperature for 2 hours, discard the supernatant to obtain a solid, and the gained solid is washed 3 times with absolute ethanol, and then placed...
Embodiment 3
[0103] Compared with Example 1, most of them are the same, except that in this example, the pyrolysis temperature is changed to 500°C, and the combustion temperature is changed to 750°C.
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