CN208032280U - A kind of Sulfur Recovery Unit tail gas by ammonia method desulphurization system - Google Patents
A kind of Sulfur Recovery Unit tail gas by ammonia method desulphurization system Download PDFInfo
- Publication number
- CN208032280U CN208032280U CN201820332334.2U CN201820332334U CN208032280U CN 208032280 U CN208032280 U CN 208032280U CN 201820332334 U CN201820332334 U CN 201820332334U CN 208032280 U CN208032280 U CN 208032280U
- Authority
- CN
- China
- Prior art keywords
- level
- claus reaction
- sulfur
- tail gas
- air heater
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Treating Waste Gases (AREA)
Abstract
The utility model belongs to ammonia preparation field, and in particular to a kind of Sulfur Recovery Unit tail gas by ammonia method desulphurization system, including combustion system and claus reaction system；Main burning furnace, combustion chamber are connected with claus reaction systematic order, and waste heat boiler is provided on the combustion chamber, and main air blower, fuel gas inlet and inlet exhaust gas are connect with main burning furnace respectively, and boiler feed pipe, low-pressure steam outlet pipe are respectively arranged on waste heat boiler；Level-one claus reaction system, two level claus reaction system are connected with three-level claus reaction systematic order.The utility model can effectively remove the sulfide in ammonia-preparing process in exhaust gas, reduce SO2Discharge reduces environmental pollution.
Description
Technical field
The utility model belongs to ammonia preparation field, and in particular to a kind of Sulfur Recovery Unit tail gas by ammonia method desulphurization system.
Background technology
It will produce a large amount of tail gas in ammonia-preparing process, mainly contain N2、AR、SO2、H2S、CO2、H2O,CO.In order to reach state
Exhaust emission standard as defined in family, needs to handle tail gas.Because existing simultaneously SO in tail gas2And H2S is easy to happen anti-
Answer or tail gas in hydrogen sulfide content it is high when, there is incomplete combustion in the boiler, a small amount of hydrogen sulfide enters desulphurization system, raw
At ATS (Ammonium thiosulphate).ATS (Ammonium thiosulphate) is unstable, can become sulphur simple substance, blocks offgas duct；Flange sealing surface is easy leakage；In the presence of
Corrosive pipeline problem.In order to effectively purify the tail gas generated in ammonia-preparing process, air conservation is effectively protected environment urgency
Need a set of recycling exhaust treatment system.
Invention content
To solve the above-mentioned problems, the utility model provides a kind of Sulfur Recovery Unit tail gas by ammonia method desulphurization system, can
Effectively reduce the content of the atmosphere pollutions such as sulfur dioxide in tail gas, hydrogen sulfide and carbon monoxide.
A kind of Sulfur Recovery Unit tail gas by ammonia method desulphurization system, including combustion system and claus reaction system；
The combustion system includes main burning furnace, combustion chamber, waste heat boiler, main air blower, preheater, fuel gas inlet, tail
Gas import, boiler feed pipe, low-pressure steam outlet pipe, the main burning furnace, combustion chamber are connected with claus reaction systematic order, institute
It states and is provided with waste heat boiler on combustion chamber, the main air blower, fuel gas inlet and inlet exhaust gas are connect with main burning furnace respectively, institute
It states and is respectively arranged with boiler feed pipe, low-pressure steam outlet pipe on waste heat boiler；
The claus reaction system include level-one claus reaction device, first process hot-air heater, level-one sulfur condenser,
Two level claus reaction device, Secondary process hot-air heater, two level sulfur condenser, three-level claus reaction device, three-stage process gas add
Hot device, three-level sulfur condenser, the first process hot-air heater, level-one claus reaction device and level-one sulfur condenser are linked in sequence
Form level-one claus reaction system, the Secondary process hot-air heater, two level claus reaction device, two level sulfur condenser sequence
Connection composition two level claus reaction system, the three-stage process hot-air heater, three-level claus reaction device, three-level sulfur condenser
Be linked in sequence composition three-level claus reaction system, the level-one claus reaction system, two level claus reaction system and three
Grade claus reaction systematic order connection；
The first process hot-air heater is steamed by middle pressure respectively with Secondary process hot-air heater, three-stage process hot-air heater
Steam pipe circulating-heating；
The level-one sulfur condenser, two level sulfur condenser, three-level sulfur condenser pass through pipeline and molten sulfur pond respectively（6）Even
It connects, sulphur is exported from molten sulfur by liquid sulfur pump and flowed out in the molten sulfur pond；
It is provided with air cooler on the three-level sulfur condenser and tail gas tracks down and arrests device, is passed through by the tail gas of three-level sulfur condenser
Device is tracked down and arrested by tail gas again after air cooler cooling, liquid sulfur is tracked down and arrested into recycling, tail gas enters boiler by offgas outlet and fires again
It burns.
Advantageous effect：The utility model can effectively remove the sulfide in ammonia-preparing process in exhaust gas, reduce SO2Row
It puts, reduces environmental pollution.
Description of the drawings
Fig. 1 is a kind of Sulfur Recovery Unit tail gas by ammonia method desulphurization system flow chart
Wherein, 1- main burning furnaces, the combustion chambers 101-, 102- waste heat boilers, 103- main air blowers, 104- preheaters, 105- combustions
Expect gas import, 106- inlet exhaust gas, 107- boiler feed pipes, 108- low-pressure steams outlet pipe, 201- level-one claus reactions device,
202- first process hot-air heater, 203- level-ones sulfur condenser, 301- two level claus reactions device, the heating of 302- Secondary process gas
Device, 303- two levels sulfur condenser, 401- three-level claus reactions device, 402- three-stage process hot-air heater, the condensation of 403- three-level sulphur
Device, 5- middle pressure steams pipe, 501- middle pressure steams entrance, 502- middle pressure steams condensate outlet, 6- molten sulfurs pond, 601- liquid sulfur pumps,
The outlet of 602- molten sulfurs, 7- air coolers, 8- tail gas track down and arrest device, 9- offgas outlets.
Specific implementation mode
A kind of Sulfur Recovery Unit tail gas by ammonia method desulphurization system, including combustion system and claus reaction system；
The combustion system include main burning furnace 1, combustion chamber 101, waste heat boiler 102, main air blower 103, preheater 104,
Fuel gas inlet 105, inlet exhaust gas 106, boiler feed pipe 107, low-pressure steam outlet pipe 108, the main burning furnace 1, combustion chamber
101 are connected with claus reaction systematic order, and waste heat boiler 102, the main air blower 103, combustion are provided on the combustion chamber 101
Material gas import 105 and inlet exhaust gas 106 are connect with main burning furnace 1 respectively, be respectively arranged on the waste heat boiler 102 boiler to
Water pipe 107, low-pressure steam outlet pipe 108；
The claus reaction system includes level-one claus reaction device 201, first process hot-air heater 202, level-one sulphur
Condenser 203, two level claus reaction device 301, Secondary process hot-air heater 302, two level sulfur condenser 303, three-level Crouse
Reactor 401, three-stage process hot-air heater 402, three-level sulfur condenser 403, the first process hot-air heater 202, level-one gram
Louth reactor 201 and level-one sulfur condenser 203, which are linked in sequence, forms level-one claus reaction system, and the Secondary process gas adds
Hot device 302, two level claus reaction device 301, two level sulfur condenser 303, which are linked in sequence, forms two level claus reaction system, institute
State three-stage process hot-air heater 402, three-level claus reaction device 401, three-level sulfur condenser 403 be linked in sequence composition three-level gram labor
This reaction system, the level-one claus reaction system, two level claus reaction system and three-level claus reaction systematic order
Connection；
The first process hot-air heater 202 is distinguished with Secondary process hot-air heater 302, three-stage process hot-air heater 402
Pass through 5 circulating-heating of middle pressure steam pipe；
The level-one sulfur condenser 203,303 three-level sulfur condenser 403 of two level sulfur condenser pass through pipeline and molten sulfur respectively
Pond 6 connects, and sulphur is flowed out by liquid sulfur pump 601 from molten sulfur outlet 602 in the molten sulfur pond 6；
It is provided with air cooler 7 on the three-level sulfur condenser 403 and tail gas tracks down and arrests device 8, passes through three-level sulfur condenser 403
Tail gas tracks down and arrests device 8 by tail gas again after the cooling of air cooler 7 and liquid sulfur is tracked down and arrested recycling, and tail gas is entered by offgas outlet 9
Boiler burns again.
The basic principle of the utility model：
Corresponding gas is filled with into main burning furnace 1 by inlet exhaust gas 106, fuel gas inlet 105 and main air blower 103 respectively
Body burns by being sufficiently mixed for main burning furnace 1 in combustion chamber 101, and tail gas is anti-by claus reaction system condensing
It answers, the sulfur-containing compound in tail gas, which is converted to sulphur, is collected into molten sulfur pond 6, is pumped out from molten sulfur outlet 602 by liquid sulfur pump 601.
Preheater 104 on the main air blower 103 can preheat the air for entering main burning furnace 1, improve burning
Efficiency.
The boiler feed pipe 107 and low-pressure steam outlet pipe 108 being arranged on the combustion chamber 101, can will be in combustion chamber 101
The heat of generation is taken away, in case other purposes.
The level-one claus reaction system, two level claus reaction system and three-level claus reaction systematic order connect
It connects, tail gas can be reacted step by step, generate sulphur, improve the treatment effeciency of tail gas.
The first process hot-air heater 202 is distinguished with Secondary process hot-air heater 302, three-stage process hot-air heater 402
By 5 circulating-heating of middle pressure steam pipe, so as to entering level-one claus reaction device 201, two level claus reaction device 301, three
The tail gas of grade claus reaction device 401 is preheated, in order to improve the efficiency that claus reaction generates sulphur.
Boiler feed pipe 107 and low-pressure steam outlet pipe 108 are arranged on the combustion chamber 101 to be made because being produced on combustion chamber 101
On the one hand if raw a large amount of heat has an impact the service life of combustion chamber 101 without cooling, on the other hand generate
Air velocity is too fast, and heat is too high so that sulphur conversion ratio reduces in claus reaction device instead, therefore is arranged on combustion chamber 101
The cooling system that boiler feed pipe 107 and low-pressure steam outlet pipe 108 form.
And in the first process hot-air heater 202 and Secondary process hot-air heater 302, three-stage process hot-air heater 402
It is to ensure the temperature into claus reaction device tail gas in certain range respectively by 5 circulating-heating of middle pressure steam pipe
It is interior, it is unlikely to excessively high also less low, improves sulphur conversion ratio in claus reaction device.
Claims (1)
1. a kind of Sulfur Recovery Unit tail gas by ammonia method desulphurization system, which is characterized in that including combustion system and claus reaction system
System；
The combustion system includes main burning furnace（1）, combustion chamber（101）, waste heat boiler（102）, main air blower（103）, preheater
（104）, fuel gas inlet（105）, inlet exhaust gas（106）, boiler feed pipe（107）, low-pressure steam outlet pipe（108）, the master
Combustion furnace（1）, combustion chamber（101）It is connected with claus reaction systematic order, the combustion chamber（101）On be provided with waste heat boiler
（102）, the main air blower（103）, fuel gas inlet（105）And inlet exhaust gas（106）Respectively with main burning furnace（1）Connection, institute
State waste heat boiler（102）On be respectively arranged with boiler feed pipe（107）, low-pressure steam outlet pipe（108）；
The claus reaction system includes level-one claus reaction device（201）, first process hot-air heater（202）, level-one sulphur
Condenser（203）, two level claus reaction device（301）, Secondary process hot-air heater（302）, two level sulfur condenser（303）, three
Grade claus reaction device（401）, three-stage process hot-air heater（402）, three-level sulfur condenser（403）, the first process gas adds
Hot device（202）, level-one claus reaction device（201）With level-one sulfur condenser（203）Be linked in sequence composition level-one claus reaction
System, the Secondary process hot-air heater（302）, two level claus reaction device（301）, two level sulfur condenser（303）Sequence connects
Connect composition two level claus reaction system, the three-stage process hot-air heater（402）, three-level claus reaction device（401）, three-level
Sulfur condenser（403）Be linked in sequence composition three-level claus reaction system, the level-one claus reaction system, two level Crouse
Reaction system is connected with three-level claus reaction systematic order；
The first process hot-air heater（202）With Secondary process hot-air heater（302）, three-stage process hot-air heater（402）Point
Do not pass through middle pressure steam pipe（5）Circulating-heating；
The level-one sulfur condenser（203）, two level sulfur condenser（303）Three-level sulfur condenser（403）Pass through pipeline and liquid respectively
Sulphur pond（6）Connection, the molten sulfur pond（6）Middle sulphur passes through liquid sulfur pump（601）It is exported from molten sulfur（602）Outflow；
The three-level sulfur condenser（403）On be provided with air cooler（7）Device is tracked down and arrested with tail gas（8）, pass through three-level sulfur condenser
（403）Tail gas pass through air cooler（7）Device is tracked down and arrested by tail gas again after cooling（8）Liquid sulfur is tracked down and arrested and is recycled, tail gas passes through tail
Gas exports（9）It burns again into boiler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820332334.2U CN208032280U (en) | 2018-03-12 | 2018-03-12 | A kind of Sulfur Recovery Unit tail gas by ammonia method desulphurization system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820332334.2U CN208032280U (en) | 2018-03-12 | 2018-03-12 | A kind of Sulfur Recovery Unit tail gas by ammonia method desulphurization system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208032280U true CN208032280U (en) | 2018-11-02 |
Family
ID=63950874
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820332334.2U Active CN208032280U (en) | 2018-03-12 | 2018-03-12 | A kind of Sulfur Recovery Unit tail gas by ammonia method desulphurization system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208032280U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113415788A (en) * | 2021-07-07 | 2021-09-21 | 华亭煤业集团有限责任公司 | Sulfur recovery process by using fuel gas for blending combustion |
-
2018
- 2018-03-12 CN CN201820332334.2U patent/CN208032280U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113415788A (en) * | 2021-07-07 | 2021-09-21 | 华亭煤业集团有限责任公司 | Sulfur recovery process by using fuel gas for blending combustion |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105042623B (en) | A kind of air preheater | |
| CN110036238B (en) | Method and system for improving boiler effectiveness | |
| CN208032280U (en) | A kind of Sulfur Recovery Unit tail gas by ammonia method desulphurization system | |
| CN208852689U (en) | A kind of Novel flue gas desulphurization system | |
| CN210568552U (en) | Boiler energy-saving and flue gas whitening system | |
| CN202993536U (en) | Coal-fired hot blast furnace set with waste heat boiler | |
| CN106382824A (en) | Novel tube heating furnace waste heat recovery system and method | |
| CN102620569A (en) | Resource cyclic utilization system of industrial kiln | |
| CN104566427B (en) | Gas fired-boiler smoke gas treatment system and smoke treating method | |
| CN206435053U (en) | Sulphur is hydrogenated with recycling and processing device | |
| CN206924611U (en) | A kind of sulfur-containing tail gas processing system | |
| CN207413149U (en) | A kind of claus tail-gas clean-up system | |
| CN206478659U (en) | Tail gas burning facility and tail gas burning furnace | |
| CN206444450U (en) | Exhaust gas processing device after sulfur recovery facility shut-down | |
| CN201942604U (en) | Non-contact type smoke waste heat sludge drying system | |
| CN209287041U (en) | A kind of system for realizing flue gases of cock oven desulphurization denitration using tedge waste heat | |
| CN207645803U (en) | A kind of sulfur recovery unit for carbon disulphide production technique | |
| CN208366101U (en) | A kind of tube furnace flue gas desulfurization and denitrification system | |
| CN209302535U (en) | A kind of flue gases of cock oven system for desulfuration and denitration | |
| CN219867911U (en) | Flue gas waste heat recovery system of RTO (regenerative thermal oxidizer) furnace of coking plant | |
| CN209512042U (en) | A kind of ammonia process of desulfurization waste liquid heat accumulating type incineration produces SO2Process Gas system | |
| CN207351232U (en) | A kind of coking flue gas purification system | |
| CN206056311U (en) | A kind of tubular heating stove waste-heat recovery device | |
| CN207805356U (en) | A kind of purifying processing system of depth of sulphur flue gas | |
| CN109126452A (en) | A kind of system and method for realizing flue gases of cock oven desulphurization denitration using tedge waste heat |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |