Device and method for converting cyanogen-containing organic waste liquid into nitrogen-doped carbon nanomaterial

A technology of organic waste liquid and nitrogen-doped carbon, applied in chemical instruments and methods, nano-carbon, inorganic chemistry, etc., can solve complex engineering problems and other problems, achieve temperature control problems, save power consumption, and solve gasification Effects of Energy Consumption Problems

Active Publication Date: 2021-09-03
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, complex engineering problems arise, that is, the reaction device needs to meet the requirements of continuous conversion and standard conversion at all times
This technique has not been reported

Method used

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  • Device and method for converting cyanogen-containing organic waste liquid into nitrogen-doped carbon nanomaterial

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] according to figure 1 In the assembled device, the height of the fixed bed section 3 is 1:5 of the height of the fluidized bed section 3 .

[0034]Fill catalyst (10% NiFe alloy (9% Fe-1% Ni)-42% aluminum oxide-48% magnesia) in fluidized bed section 2 through fluidized bed catalyst inlet 7, through fixed bed catalyst inlet 8 to fixed Bed section 3 is packed with catalyst (1% Ni-1% W-98% silica). The weight of the catalyst in the fixed bed section 3 is 1:5 of the catalyst weight in the fluidized bed section 2 . The auxiliary fluidized bed gas (Ar) is fed into the fluidized bed section 2 from the auxiliary fluidized bed gas inlet 5, and its mass flow rate is 5% of the cyanide-containing organic waste liquid, and the fluidized bed section 2 is heated to 500°C.

[0035] From the inlet cyanide-containing organic waste liquid inlet 9 of the vaporizer 4, pass into the cyanide-containing organic waste liquid (95% molecular weight is organic matter of 60-300, 5% water), passes ...

Embodiment 2

[0040] according to figure 1 In the assembled device, the height of the fixed bed section 3 is 1:4 of the height of the fluidized bed section 3 .

[0041] Load catalyst (1%CoMoW alloy (0.9%Co-0.05%Mo-0.05%W)-99% silicon oxide) in the fluidized bed section 2 through the fluidized bed catalyst inlet 7, and feed the fixed bed through the fixed bed catalyst inlet 8 Stage 3 is loaded with catalyst (10% Co-10% Mo-25% silica-55% alumina). The weight of the catalyst in the fixed bed section 3 is 2:1 of the catalyst weight in the fluidized bed section 2 . The auxiliary fluidized bed gas (Ar) is fed into the fluidized bed section 2 from the auxiliary fluidized bed gas inlet 5, and its mass flow rate is 1% of the cyanide-containing organic waste liquid, and the fluidized bed section 2 is heated to 800°C.

[0042] From the cyanogen-containing organic waste liquid inlet 9 of vaporizer 4, pass into cyanide-containing organic waste liquid (molecular weight is the organic matter of 80-300),...

Embodiment 3

[0047] according to figure 1 In the assembled device, the height of the fixed bed section 3 is 1:2 of the height of the fluidized bed section 3 .

[0048] Fill catalyst (30% NiCu alloy (10%Ni-20%Cu)-70% alumina) into fluidized bed section 2 through fluidized bed catalyst inlet 7, and fill fixed bed section 3 through fixed bed catalyst inlet 8 Catalyst (10% Co-5% Mo-45% Magnesia-40% Alumina). The weight of the catalyst in the fixed bed section 3 is 2:1 of the catalyst weight in the fluidized bed section 3 . Pass the auxiliary fluidized bed gas (Ar) from the fluidized bed auxiliary gas inlet 5 to the fluidized bed section 2), and its mass flow rate is 1% of the cyanide-containing organic waste liquid, and the fluidized bed section 2 is heated to 750°C .

[0049] From the cyanide-containing organic waste liquid inlet 9 of vaporizer 4, pass into cyanide-containing organic waste liquid (molecular weight is the organic matter of 26-350), pass through vaporizer downwards, carry ou...

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Abstract

The invention discloses a device and a method for converting cyanogen-containing organic waste liquid into a nitrogen-doped carbon nanomaterial, and belongs to the technical field of cyanogen-containing organic waste liquid conversion. The device comprises a two-section reaction device, the first section is a fluidized bed which is used for converting the cyanogen-containing organic waste liquid into a nitrogen-doped carbon nanomaterial by using a catalyst; and the second section is a fixed bed which has the function of converting all cyanogen-containing compounds into NH3 or N2 by using a catalyst, and the organic matter in the gas is only methane. According to the invention, high-value utilization of the cyanogen-containing organic waste liquid is realized, and the organic matters in the final tail gas directly reach the emission standard. The technology is suitable for waste liquid treatment in the organic matter ammoxidation process and treatment of organic waste liquid generated by pyrolysis of various nitrogen-containing or cyanogen-containing organic materials, and compared with an original incineration method, the cost is greatly reduced, and the added value of products is improved.

Description

technical field [0001] The invention belongs to the technical field of conversion of cyanide-containing organic waste liquid, and in particular relates to a device and method for converting cyanide-containing organic waste liquid into nitrogen-doped carbon nanomaterials. Background technique [0002] Cyanide-containing organic waste liquid (including waste liquid, waste gas) is the product of the ammoxidation reaction process and the thermal decomposition process of nitrogen-containing and cyanide-containing organic compounds (including gases, liquids, and solids). It has complex components, low content, and environmental impact. The characteristics of large effect. The current method for treating cyanide-containing organic waste liquid includes enrichment by absorption or adsorption after pre-cooling. Part of the cyanide-containing organic waste liquid can become liquid after enrichment. A small amount of liquid with simple components can be recycled as a product. Howeve...

Claims

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Application Information

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IPC IPC(8): C02F1/00B01J8/24B01J8/02B01J8/04C01B32/162C01B32/184C02F101/38
CPCC02F1/00B01J8/24B01J8/0242B01J8/0449C01B32/162C01B32/184C02F2101/38
Inventor 崔超婕骞伟中
Owner TSINGHUA UNIV
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