CN218794922U - Carbon disulfide flash evaporation tail gas treatment device - Google Patents
Carbon disulfide flash evaporation tail gas treatment device Download PDFInfo
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- CN218794922U CN218794922U CN202222935623.0U CN202222935623U CN218794922U CN 218794922 U CN218794922 U CN 218794922U CN 202222935623 U CN202222935623 U CN 202222935623U CN 218794922 U CN218794922 U CN 218794922U
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- tail gas
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- carbon disulfide
- buffer tank
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/30—Technologies for a more efficient combustion or heat usage
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Abstract
The patent of the utility model discloses a carbon disulfide flashes tail gas processing apparatus, and tail gas is through cold behind the gas house steward of releasingAfter the condensed liquid is separated, the residual tail gas is buffered by a buffer tank, enters an incinerator (matched waste heat boiler) for incineration through a tail gas entering the incinerator water seal tank, and is completely converted into SO 2 And then the waste gas is treated to reach the standard and is collected into a total chimney for discharging, thereby achieving the purpose of environmental protection. The device required by the process comprises equipment such as a synthetic tail gas condenser, a liquid separation tank, a tail gas buffer tank, a tail gas furnace inlet water seal tank, a gas buffer tank, an incinerator (matched with a waste heat boiler), a sulfur-containing flue gas aftercooler, a pump and the like, and is obtained after connection in a specific connection mode. By adopting the process and the corresponding device to treat the carbon disulfide flash evaporation tail gas, the heat generated by incineration can be utilized to obtain 0.8MPa and 0.4MPa steam after heat exchange of a waste heat boiler and a sulfur-containing flue gas aftercooler, and the energy utilization rate is improved.
Description
Technical Field
The patent of the utility model belongs to the technical field of chemical industry equipment, in particular to processing apparatus of carbon disulfide tail gas.
Background
When chemical enterprises produce carbon disulfide, the generated tail gas contains more hydrogen sulfide gas, a small amount of carbon disulfide and other impurities, and the hydrogen sulfide gas and the carbon disulfide are highly toxic irritant gases and need to be treated and then discharged.
At present, carbon disulfide tail gas is generally treated by a claus device, most of hydrogen sulfide and carbon disulfide therein are converted into elemental sulfur, and then the residual hydrogen sulfide is absorbed by an amine liquid absorption tower and then discharged. However, in this process, the ratio of air to hydrogen sulfide needs to be strictly controlled to ensure good conversion.
Disclosure of Invention
The utility model aims at prior art's not enough, provide a processing apparatus of carbon disulfide tail gas, but its simple structure, improvement economic nature, energy-concerving and environment-protective efficient handling carbon disulfide tail gas guarantee that the tail gas of emission accords with the environmental protection requirement.
The carbon disulfide flash evaporation tail gas treatment device is characterized in that carbon disulfide flash evaporation tail gas is connected with a condenser through a pipeline, and the condenser is connected with a liquid separation tank;
the top of the liquid separation tank is connected with a tail gas buffer tank, and the tail gas buffer tank is connected with a tail gas furnace inlet water seal tank;
the tail gas inlet water seal tank is connected with the continuous incinerator.
The continuous incinerator is connected with a waste heat boiler, the waste heat boiler is connected with a sulfur-containing flue gas aftercooler, and the sulfur-containing flue gas aftercooler is connected to a washing device through a flue gas induced draft fan.
The continuous incinerator is provided with a fuel gas buffer tank and an air inlet pipe.
By adopting the device, a part of carbon disulfide is recovered after carbon disulfide tail gas is condensed, and the carbon disulfide can not be recovered by burning the carbon disulfide tail gas, so that the carbon disulfide tail gas is converted into sulfur dioxide-containing flue gas, and the sulfur dioxide-containing flue gas is sent to a subsequent device to be treated and then is converged into a chimney to be discharged after reaching the standard. Meanwhile, the heat generated in the incineration process can be utilized to generate steam of 0.8MPa and 0.4MPa, thereby achieving the purpose of saving energy.
Through the utility model provides a tail gas treatment device, with the CS in the tail gas 2 And H 2 Conversion of S to SO 2 Then the obtained product can be sent to a liquid caustic soda desulfurization device for absorption treatment; the heat generated in the incineration process is utilized, and the energy utilization rate is improved.
Drawings
Fig. 1 is a structural diagram of the device of the present invention.
Condenser 1, divide liquid jar 2, tail gas buffer tank 3, tail gas advance stove water seal jar 4, burn burning furnace 5 in succession, gas buffer tank 6, air admission pipe 7, exhaust-heat boiler 8, contain sulphur flue gas after-cooling ware 9, flue gas draught fan 10.
The model of the tail gas furnace inlet water tank sealing equipment is as follows: LSF-1226; the continuous incinerator has the following equipment types: JYLP-1500; the gas buffer tank has the following equipment types: c-3/1.6; the air inlet tank equipment model is as follows: c-3/1.6; the waste heat boiler comprises the following equipment models: q2/1000-10-0.45; the sulfur-containing flue gas after-cooler equipment model is as follows: RV03-3.5-1.0/1.0.
Detailed Description
The invention is further illustrated by the following examples in conjunction with the accompanying drawings:
example 1
The carbon sulfide flash tail gas treatment device is characterized in that carbon disulfide flash tail gas is connected with a condenser 1 through a pipeline, and the condenser 1 is connected with a liquid separation tank 2;
the top of the liquid separation tank 2 is connected with a tail gas buffer tank 3, and the tail gas buffer tank 3 is connected with a tail gas furnace inlet water seal tank 4;
the tail gas furnace inlet water seal tank 4 is connected with the continuous incinerator 5.
The continuous incinerator 5 is connected with a waste heat boiler 8, the waste heat boiler 8 is connected with a sulfur-containing flue gas aftercooler 9, and the sulfur-containing flue gas aftercooler 9 is connected to a water washing device through a flue gas induced draft fan 10.
The continuous combustion furnace 5 is provided with a gas buffer tank 6 and an air inlet pipe 7.
Example 2
The carbon disulfide flash off-gas treatment process performed by the apparatus of embodiment 1 comprises the following steps:
the carbon sulfide flash evaporation tail gas firstly flows into a gas discharge main pipe and is condensed by a condenser 1, the condenser 1 is filled with frozen brine, then the gas and liquid enter a liquid separation tank 2 from the middle part for gas-liquid separation, the liquid phase is discharged from the bottom of the tank and pumped to a desulfurizing tower, the gas phase is sent to a synthetic tail gas buffer tank 3, the tail gas enters a feed inlet at the upper part of a furnace water seal tank 4 through the synthetic tail gas buffer tank 3, the feed flow of the tail gas enters a continuous incinerator 5, and the feed flow is 150Nm 3 Simultaneously, natural gas respectively enters the continuous incinerator from a feed inlet on the side surface of the incinerator through air of a gas buffer tank 6, the temperature of the continuous incinerator 5 is 500-650 ℃, the temperature can be controlled by controlling the flow of fuel natural gas, and the air is ensured to be excessive so as to ensure the complete combustion of the natural gas; the temperature of the sulfur-containing flue gas generated by incineration is reduced to 150 ℃ after heat exchange is carried out on the sulfur-containing flue gas by desalted water of a waste heat boiler 8, and meanwhile, 0.8MPa steam is generated and sent to a 0.8MPa steam pipe network. The temperature of the sulfur-containing flue gas entering a post cooler 9 for heat exchange with demineralized water is reduced to 25 ℃, and simultaneously 0.4MPa steam is generated and sent to a 0.4MPa steam pipe network; the cooled sulfur-containing flue gas passes through a flue gas induced draft fan 10 and washes the tower.
Adopt the utility model discloses a during carbon disulfide tail gas is handled to the device, will guarantee to contain 9 mouthful of department of sulphur flue gas after-cooler oxygen content about 10% to guarantee that the sulphide in the tail gas all turns into SO 2 。
Claims (3)
1. The carbon disulfide flash evaporation tail gas treatment device is characterized in that a carbon disulfide flash evaporation tail gas discharge pipe is connected with a condenser (1), and the condenser (1) is connected with a liquid separation tank (2);
the top of the liquid separation tank (2) is connected with a tail gas buffer tank (3), and the tail gas buffer tank (3) is connected with a tail gas furnace inlet water seal tank (4);
the tail gas furnace inlet water seal tank (4) is connected with the continuous incinerator (5).
2. A carbon disulphide flash evaporation tail gas treatment device according to claim 1, wherein the continuous incinerator (5) is connected with a waste heat boiler (8), the waste heat boiler (8) is connected with a sulphur-containing flue gas aftercooler (9), and the sulphur-containing flue gas aftercooler (9) is connected to a water washing device through a flue gas induced draft fan (10).
3. A carbon disulphide flash off-gas treatment plant according to claim 1, wherein the continuous incinerator (5) is provided with a gas buffer tank (6) and an air inlet pipe (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222935623.0U CN218794922U (en) | 2022-11-04 | 2022-11-04 | Carbon disulfide flash evaporation tail gas treatment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222935623.0U CN218794922U (en) | 2022-11-04 | 2022-11-04 | Carbon disulfide flash evaporation tail gas treatment device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218794922U true CN218794922U (en) | 2023-04-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222935623.0U Active CN218794922U (en) | 2022-11-04 | 2022-11-04 | Carbon disulfide flash evaporation tail gas treatment device |
Country Status (1)
| Country | Link |
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| CN (1) | CN218794922U (en) |
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2022
- 2022-11-04 CN CN202222935623.0U patent/CN218794922U/en active Active
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