CN101717669A - Method for treating phenol-cyanogen wastewater generated by gas generation furnace - Google Patents
Method for treating phenol-cyanogen wastewater generated by gas generation furnace Download PDFInfo
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- CN101717669A CN101717669A CN200910216155A CN200910216155A CN101717669A CN 101717669 A CN101717669 A CN 101717669A CN 200910216155 A CN200910216155 A CN 200910216155A CN 200910216155 A CN200910216155 A CN 200910216155A CN 101717669 A CN101717669 A CN 101717669A
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- cyanide
- wastewater containing
- containing phenol
- gas generator
- vaporizer
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- Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
Abstract
The invention relates to a method for treating phenol-cyanogen wastewater generated by a gas generation furnace, comprising the following steps: arranging a phenol-cyanogen wastewater evaporator beside the gas generation furnace; feeding the phenol-cyanogen wastewater generated by the gas generation furnace into the phenol-cyanogen wastewater evaporator; leading part of the steam generated by a steam generator of the gas generation furnace into the phenol-cyanogen wastewater evaporator to indirectly heat and evaporate the phenol-cyanogen wastewater; and feeding all the secondary steam generated by the steam generator into a slag layer section arranged on the lower part of the gas generation furnace to be used as the raw material for producing the gas.
Description
Technical field
The present invention relates to a kind of treatment process of the wastewater containing phenol and cyanide of producer gas generator generation.
Background technology
Coal gas is a class widely used fuel in producing and living, and it is to be made by series of chemical in producer gas generator by coal.In preparation cooled coal gas process, can produce wastewater containing phenol and cyanide (waste water that contains phenol and cyanogen) inevitably, this waste water will cause severe contamination to environment if directly enter environment.The treatment process of wastewater containing phenol and cyanide mainly contains biological chemistry treatment process, independent burning method, system coal water slurry facture and sneaks into drying tower raw material facture at present.Biological chemistry disposal methods effect instability, cost is higher; Though the burning method treatment effect is fine separately, processing cost is very high; The coal slurry industry investment of system coal water slurry facture is big, and many producers do not have this system, are difficult to carry out.Sneak into drying tower raw material facture, low-temperature zone is evaporated in a large number, makes considerable part phenol and cyanogen have neither part nor lot in chemical reaction and enter atmosphere thus.The treatment process of the wastewater containing phenol and cyanide that cost of development producer gas generator low, easy to use produces has big practical value.
Summary of the invention
The problem of the treatment process of the wastewater containing phenol and cyanide that produces at present producer gas generator, it is low to the objective of the invention is to seek processing cost, in the gas production producer treatment process of the wastewater containing phenol and cyanide that produces of the producer gas generator of in-field use easily, it is characterized in that a wastewater containing phenol and cyanide vaporizer being set on the producer gas generator side, the wastewater containing phenol and cyanide that producer gas generator produces is sent into this vaporizer, the part steam that produces with the vapour generator of producer gas generator feeds the wastewater containing phenol and cyanide vaporizer wastewater containing phenol and cyanide is carried out the indirect heating evaporation, and the secondary steam that vaporizer produces is all sent into producer gas generator bottom slag blanket section as the raw material of producing coal gas.The vapour generator of producer gas generator is supplied with the vapor pressure 〉=0.1MPa of wastewater containing phenol and cyanide vaporizer.The vapor phase that vaporizer produces is-0.02～0.005MPa for the pressure of environment.Supplied with the quantity of steam of producer gas generator by steam generator and do corresponding minimizing, reduction is the water vapor amount that wastewater containing phenol and cyanide produces in the wastewater containing phenol and cyanide vaporizer.
The object of the present invention is achieved like this, in the wastewater containing phenol and cyanide vaporizer, all organism and water in the wastewater containing phenol and cyanide become organic steam and water vapor respectively, after the secondary steam that the wastewater containing phenol and cyanide vaporizer produces enters producer gas generator, by the preheating of slag blanket section, be oxidized to CO at the oxidation panel organic steam
2And H
2O.CO
2And H
2O (comprising the water vapor that the wastewater containing phenol and cyanide evaporation produces) finally generates coal gas by following series of chemical.
2C+O
2＝2CO
2CO+O
2＝2CO
2
C+O
2＝CO
2
C+2H
2O＝CO
2+2H
2
C+H
2O＝CO+H
2
C+2H
2＝CH
4
C+CO
2＝2CO
The secondary steam that the wastewater containing phenol and cyanide vaporizer produces is all produced the raw material of coal gas as producer gas generator, the steam that the vapour generator of this steam and producer gas generator produces is basic identical, can the chemical reaction process of producer gas generator not had a negative impact.Wastewater containing phenol and cyanide vaporizer institute heat requirement can make full use of the surplus heat of producer gas generator by the steam indirect supply of the vapour generator generation of producer gas generator.The heat of being supplied with vapour generator by producer gas generator is superfluous, and the steam that vapour generator produces also is superfluous, therefore, can utilize this part residual steam to handle wastewater containing phenol and cyanide.The steam that the wastewater containing phenol and cyanide vaporizer produces is all produced the raw material of coal gas as producer gas generator, can reduce the consumption of water simultaneously, has realized cleaning of technology.
With respect to existing method, outstanding advantage of the present invention is that the wastewater containing phenol and cyanide that producer gas generator produces is thoroughly handled in gas production technology, substantially do not increase the production cost of coal gas, can reduce the consumption of water simultaneously, have tangible economic benefit and environmental benefit.
Specific implementation method
Embodiment 1: mark the other wastewater containing phenol and cyanide vaporizer that is provided with of cubic meter producer gas generators in a daily output 200,000, handle 2.3 cubic metres of wastewater containing phenol and cyanides (being slightly larger than the amount of the wastewater containing phenol and cyanide of this producer gas generator generation) day.The vapor pressure of wastewater containing phenol and cyanide vaporizer is about 0MPa (steam connects the blower inlet of producer gas generator).The vapor pressure that vapour generator provides is about 0.25MPa.The secondary steam that the wastewater containing phenol and cyanide vaporizer produces all feeds the slag blanket section of this producer gas generator and makes raw material.Result of implementation shows that this producer gas generator is stable.
Embodiment 2: at the other wastewater containing phenol and cyanide vaporizer that is provided with of a daily output 100,000 mark cubic meter producer gas generators, handle 1.1 cubic metres of wastewater containing phenol and cyanides (being slightly larger than the amount of the wastewater containing phenol and cyanide of this producer gas generator generation) day, the secondary steam pressure of wastewater containing phenol and cyanide vaporizer is about 0MPa (steam connects the blower inlet of producer gas generator).The vapor pressure that vapour generator provides is about 0.25MPa.The steam that the wastewater containing phenol and cyanide vaporizer produces all feeds the slag blanket section of this producer gas generator and makes raw material.Result of implementation shows that this producer gas generator is stable.
Claims (1)
1. the treatment process of the wastewater containing phenol and cyanide that produces of a producer gas generator, it is characterized in that a wastewater containing phenol and cyanide vaporizer being set on the producer gas generator side, the wastewater containing phenol and cyanide that producer gas generator produces is sent into this vaporizer, the part steam that produces with the vapour generator of producer gas generator feeds the wastewater containing phenol and cyanide vaporizer wastewater containing phenol and cyanide is carried out the indirect heating evaporation, the secondary steam that vaporizer produces is all sent into producer gas generator bottom slag blanket section as the raw material of producing coal gas, the vapour generator of producer gas generator is supplied with the vapor pressure 〉=0.1MPa of wastewater containing phenol and cyanide vaporizer, the vapor phase that vaporizer produces is-0.02～0.005MPa for the pressure of environment, supplied with the quantity of steam of producer gas generator by steam generator and do corresponding minimizing, reduction is the water vapor amount that wastewater containing phenol and cyanide produces in the wastewater containing phenol and cyanide vaporizer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910216155A CN101717669A (en) | 2009-11-06 | 2009-11-06 | Method for treating phenol-cyanogen wastewater generated by gas generation furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910216155A CN101717669A (en) | 2009-11-06 | 2009-11-06 | Method for treating phenol-cyanogen wastewater generated by gas generation furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101717669A true CN101717669A (en) | 2010-06-02 |
Family
ID=42432309
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910216155A Pending CN101717669A (en) | 2009-11-06 | 2009-11-06 | Method for treating phenol-cyanogen wastewater generated by gas generation furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101717669A (en) |
-
2009
- 2009-11-06 CN CN200910216155A patent/CN101717669A/en active Pending
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20100602 |