CN101701713B - Processing method of phenol-cyanogen wastewater generated by coal gas generator - Google Patents
Processing method of phenol-cyanogen wastewater generated by coal gas generator Download PDFInfo
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- CN101701713B CN101701713B CN2009102161577A CN200910216157A CN101701713B CN 101701713 B CN101701713 B CN 101701713B CN 2009102161577 A CN2009102161577 A CN 2009102161577A CN 200910216157 A CN200910216157 A CN 200910216157A CN 101701713 B CN101701713 B CN 101701713B
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- gas generator
- evaporimeter
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- gas
- steam
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Abstract
The invention introduces a processing method of phenol-cyanogen wastewater generated by a coal gas generator. In the invention, a phenol-cyanogen wastewater incineration evaporator is arranged beside the coal gas generator, the phenol-cyanogen wastewater generated by the coal gas generator is sent to the incineration evaporator for incineration and evaporation, incinerated waste gases generated by the incineration evaporator and evaporated steam are sent to a lower slag layer section of the coal gas generator and used as raw materials for producing coal gas. The incineration evaporator takes the coal gas as a fuel and leads part of steam generated by a steam generator of the coal gas generator into the incineration evaporator to carry out an indirect heating on the phenol-cyanogen wastewater.
Description
Technical field
The present invention relates to a kind of processing method of the wastewater containing phenol and cyanide of 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 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 processing method of wastewater containing phenol and cyanide mainly contains biochemistry processing method, independent burning method, system water-coal-slurry facture and sneaks into drying tower raw material facture at present.Biochemistry 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 water-coal-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 processing method of the wastewater containing phenol and cyanide that development cost gas generator low, easy to use produces has big practical value.
Summary of the invention
The problem of the processing method of the wastewater containing phenol and cyanide that produces at present gas generator, it is low to the objective of the invention is to seek processing cost, the processing method of the wastewater containing phenol and cyanide that the gas generator that can use on the spot easily in Gas Production producer produces, it is characterized in that on the gas generator side wastewater containing phenol and cyanide being set burns evaporimeter, the wastewater containing phenol and cyanide that gas generator produces is sent into this burning of burning evaporimeter and evaporation, burn the burning waste gas and the evaporated vapor of evaporimeter generation and send into gas generator bottom slag blanket section as the raw material of producing coal gas.Burn evaporimeter and make fuel, and the part steam that the steam generator of gas generator produces fed burn evaporimeter wastewater containing phenol and cyanide is carried out indirect with coal gas.Burn temperature 〉=450 ℃ of combustion chamber in the evaporimeter, burning the air excess amount is 5%～20%.Steam generator by gas generator is supplied with the steam pressure 〉=0.01MPa that burns evaporimeter.Burn gas temperature 〉=75 ℃ of evaporator outlet.Supplied with the quantity of steam of gas generator by the steam generator of gas generator and do corresponding minimizing, reduction is for burning the water vapour amount that evaporimeter produces.Supplied with the air capacity of gas generator by blower fan and also do corresponding minimizing, reduction is for burning 80%～100% of evaporimeter consumed cabin air amount.
The object of the present invention is achieved like this, and in burning evaporimeter, the partial organic substances in the wastewater containing phenol and cyanide becomes water vapour and CO by burning
2, residual organic substances becomes organic steam, and the water in the wastewater containing phenol and cyanide becomes water vapour by burning and evaporation, the final main moisture vapor of evaporation waste gas, the CO of burning
2, superfluous O
2, N
2And organic steam.
After burning vaporization waste gas was sent into gas generator, at the oxidation panel of gas generator, organic steam burnt into CO
2And H
2O finally generates coal gas at reduction section 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 burning evaporation waste gas that burns the evaporimeter generation is all produced the raw material of coal gas as gas generator, burn evaporation waste gas institute heat content and also all import gas generator, and make full use of the superfluous heat of gas generator, and the water that burns in the evaporation waste gas has become gaseous state, can the chemical reaction process of gas generator not had a negative impact, embody circular economy concept, realized cleaning of technology.
With respect to existing method, outstanding advantage of the present invention is that the wastewater containing phenol and cyanide that gas generator produces is thoroughly handled in Gas Production technology, and make full use of the superfluous heat of gas generator, and do not increase the production cost of coal gas substantially, have tangible economic benefit and environmental benefit.
Specific implementation method
Embodiment 1: burn evaporimeter at the other wastewater containing phenol and cyanide that is provided with of a daily output 200,000 mark cubic meter gas generators, burning evaporimeter is fuel with this gas generator institute producing coal gas, and is thermal source with the part steam of the steam generator output of gas generator.Burn 1.8 cubic metres of evaporation wastewater containing phenol and cyanides day, the temperature of burning combustion chamber in the evaporimeter is 600～650 ℃, the air excess amount about 10% of burning.About 85 ℃ of the gas temperature of burning evaporator outlet, burning evaporation waste gas all feeds the slag blanket section of this gas generator and makes raw material.Result of implementation shows that this gas generator is stable, and the generation of wastewater containing phenol and cyanide and composition are also stable.
Embodiment 2: burn evaporimeter at the other wastewater containing phenol and cyanide that is provided with of a daily output 100,000 mark cubic meter gas generators, burning evaporimeter is fuel with this gas generator institute producing coal gas, and is thermal source with the part steam of the steam generator output of gas generator.Burn 1.1 cubic metres of evaporation wastewater containing phenol and cyanides day, the temperature of burning combustion chamber in the evaporimeter is 550～620 ℃, the air excess amount about 10% of burning.About 85 ℃ of the gas temperature of burning evaporator outlet, burning evaporation waste gas all feeds the slag blanket section of this gas generator and makes raw material.Result of implementation shows that this gas generator is stable, and the generation of wastewater containing phenol and cyanide and composition are also stable.
Claims (1)
1. the processing method of the wastewater containing phenol and cyanide that produces of a gas generator, it is characterized in that on the gas generator side wastewater containing phenol and cyanide being set burns evaporimeter, the wastewater containing phenol and cyanide that gas generator produces is sent into this burning of burning evaporimeter and evaporation, burn the burning waste gas and the evaporated vapor of evaporimeter generation and send into gas generator bottom slag blanket section as the raw material of producing coal gas, burn evaporimeter and make fuel with coal gas, and the part steam that the steam generator of gas generator produces fed burn evaporimeter wastewater containing phenol and cyanide is carried out indirect, burn temperature 〉=450 ℃ of combustion chamber in the evaporimeter, burning the air excess amount is 5%～20%, steam generator by gas generator is supplied with the steam pressure 〉=0.01MPa that burns evaporimeter, burn gas temperature 〉=75 ℃ of evaporator outlet, supply with the quantity of steam of gas generator by the steam generator of gas generator and do corresponding minimizing, reduction is for burning the water vapour amount that evaporimeter produces, supplied with the air capacity of gas generator by blower fan and also do corresponding minimizing, reduction is for burning 80%～100% of evaporimeter consumed cabin air amount.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102161577A CN101701713B (en) | 2009-11-06 | 2009-11-06 | Processing method of phenol-cyanogen wastewater generated by coal gas generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102161577A CN101701713B (en) | 2009-11-06 | 2009-11-06 | Processing method of phenol-cyanogen wastewater generated by coal gas generator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101701713A CN101701713A (en) | 2010-05-05 |
| CN101701713B true CN101701713B (en) | 2011-04-06 |
Family
ID=42156634
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009102161577A Expired - Fee Related CN101701713B (en) | 2009-11-06 | 2009-11-06 | Processing method of phenol-cyanogen wastewater generated by coal gas generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101701713B (en) |
-
2009
- 2009-11-06 CN CN2009102161577A patent/CN101701713B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN101701713A (en) | 2010-05-05 |
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| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
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Granted publication date: 20110406 Termination date: 20121106 |