A method and device for preparing solid derived fuel by thermal catalysis-carbonization of high-concentration industrial organic waste liquid
A technology of derived fuel and industrial waste liquid, applied in the direction of biofuel, waste fuel, chemical instruments and methods, etc., to achieve the effect of large environment and economic benefits
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Embodiment 1
[0040]The high-concentration organic waste liquid in this example is taken from a company’s high-boiling point distillation raffinate. It is viscous in appearance and poor in water solubility. None of the methods can obtain significant COD removal effect. The thermocatalysis-carbonization technology proposed in this embodiment is used to process this kind of high-concentration raffinate. The specific methods and steps are: (1) inject the raffinate into the thermocatalysis-carbonization reactor; (2) add NaOH to react The pH of the waste liquid in the kettle is adjusted to 8.8; (3) the catalyst pyrite powder and zeolite powder are injected into the reactor at the dosage of 1.0g / (L waste liquid) and 0.1g / (L waste liquid) respectively, and the airtight Reactor; (4) Heating the reactor to 190°C, stirring and reacting for 3.0h; (5) After cooling, discharge the residue in the reactor and carry out solid-liquid separation, and dry the obtained black powdery solid It is a solid derive...
Embodiment 2
[0044] The furfuryl alcohol production wastewater of a chemical company contains a large amount of furfuryl alcohol, phenolic aldehyde, furfural, and methanol, and the COD is as high as 200,000 to 300,000 mg / L. It is difficult to meet the discharge standard of the factory area (COD ≤ 500 mg / L) with the traditional combination of physicochemical and biochemical processes. Therefore, it is considered to use thermocatalysis-carbonization to convert most of the COD in wastewater into solid-derived fuels, and to greatly reduce COD in wastewater to meet emission requirements. The specific implementation method is: (1) inject the furfuryl alcohol production wastewater into the thermocatalysis-carbonization reactor; (2) because the pH value of the raw water is 8.5, so in this example it is not necessary to add alkali to adjust the pH; (2) the zero-valent iron Powder and zeolite powder catalysts are added to the reactor at 0.8g / (L waste liquid), 0.1g / (L waste liquid), and the reactor is...
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