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A method and device for preparing solid derived fuel by degassing-catalytic carbonization of high-concentration industrial organic waste liquid

A technology of organic waste liquid and derived fuel, which is applied in the fields of biofuel, waste fuel, chemical instruments and methods, etc., can solve the problems such as the inability to realize engineering application, the difficulty of normal growth and metabolism of anaerobic bacteria, and the limited effect of anaerobic methane production technology. , to achieve the effect of harmless and resource utilization, environment and economic benefits

Active Publication Date: 2018-02-16
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For industrial organic waste liquid with extremely high concentration, poor biodegradability and certain toxicity, it is difficult for anaerobic bacteria to grow and metabolize normally. The effect of anaerobic methane production technology is limited, and it is still unable to obtain significant organic resource utilization and total emission reduction effects.
Microbial fuel cell is a new technology that has been studied in recent years. Its principle is to convert the chemical energy contained in organic matter in wastewater into electrical energy to realize resource utilization. Can stay at the stage of theory and laboratory research, unable to realize engineering application

Method used

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  • A method and device for preparing solid derived fuel by degassing-catalytic carbonization of high-concentration industrial organic waste liquid
  • A method and device for preparing solid derived fuel by degassing-catalytic carbonization of high-concentration industrial organic waste liquid

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Embodiment 1

[0039] 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. The COD is as high as hundreds of thousands mg / L. Advanced oxidation methods such as ozone and Fenton have been used in the early stage. Neither can obtain significant COD removal effect. The decompression degassing-catalytic carbonization technology proposed in this embodiment is used to treat this kind of high-concentration residual liquid. The specific methods and steps are: (1) injecting high-concentration organic waste liquid into the decompression degassing-catalytic carbonization device; (2) Pyrite powder and MnO 2 Dosing into the decompression degassing-catalytic carbonization device; the dosage of pyrite powder is 1.0g / (L organic waste liquid), MnO 2 The powder dosage is 0.1g / (L organic waste liquid); (3) Add sodium hydroxide to the device to adjust the pH of the waste liquid ...

Embodiment 2

[0043] 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 convert most of the COD in wastewater into solid solid derived fuels by using the decompression degassing-catalytic carbonization method proposed in this example. The specific implementation method is: (1) inject high-concentration organic waste liquid into the decompression degassing-catalytic carbonization device; (2) catalyst pyrite powder and MnO 2 The dosage is 0.8g / (L organic waste liquid) and 0.1g / (L organic waste liquid); (3) Add sodium hydroxide to the device to adjust the pH of the waste liquid to 8.5; (3) Adjust the pH of the waste liquid to 8.5; Heat to 190°C, stir an...

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Abstract

The present invention relates to a method and device for preparing solid derivative fuel by decompression and degassing-catalytic carbonization of high-concentration industrial organic waste liquid. , add NaOH to adjust the pH value, heat the reaction, the released gas is processed by the dryer, and then enters the activated carbon adsorption tank for treatment or incineration and discharges after incineration; after the reaction is completed, the reaction device is naturally cooled, and the discharge hole is opened to take out the powdery carbonization reaction product. It is a solid derived fuel prepared from high-concentration organic waste liquid. The method of the invention is simple to operate, is not limited to the properties of high-concentration organic waste liquid, has a wide application range, is easy to engineer, and provides an economically feasible method for harmless and resourceful refractory high-concentration industrial waste liquid.

Description

technical field [0001] The invention belongs to the technical field of high-concentration refractory industrial wastewater treatment and recycling, and particularly relates to a method and a device for preparing solid derivative fuel by degassing and catalytic carbonization of high-concentration industrial organic waste liquid. Background technique [0002] The treatment methods of high-concentration refractory industrial wastewater or waste liquid mainly include oxidation, reduction, coagulation, biochemistry, etc. and their combined processes. However, for some organic waste liquids with extremely high COD concentration produced in industrial production (such as high-boiling point distillation residues, membrane separation concentrates), the COD is often as high as hundreds of thousands of mg / L. According to conventional wastewater treatment methods, it is impossible to It is treated to meet the discharge standards; however, using high-end technologies such as wet oxidatio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F9/10C10L5/46C02F101/30
CPCY02E50/10Y02E50/30
Inventor 薛罡张文启高品李响张禾刘振鸿张凡张文娟王成薛顺利韩闯魏欣孟迪顾超超辛海霞陈畅愉成钰莹来思周甘雁飞徐小强杨帆
Owner DONGHUA UNIV
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