CN206924623U - A kind of desulfurization regeneration tower circulates heat riser - Google Patents
A kind of desulfurization regeneration tower circulates heat riser Download PDFInfo
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- CN206924623U CN206924623U CN201720584883.4U CN201720584883U CN206924623U CN 206924623 U CN206924623 U CN 206924623U CN 201720584883 U CN201720584883 U CN 201720584883U CN 206924623 U CN206924623 U CN 206924623U
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- heat exchanger
- flash distillation
- liquid heat
- rich liquid
- poor
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Abstract
The utility model belongs to petroleum refining field, and in particular to a kind of desulfurization regeneration tower circulates heat riser, can realize that the circulation of desulfurization regeneration system heats up, hydrogen sulfide content in balance system.A kind of desulfurization regeneration tower circulates heat riser, including desulfurizing tower and regenerative system, the regenerative system includes regenerator, poor rich liquid heat exchanger after flash distillation, poor rich liquid heat exchanger before flash distillation, lean solution cooler, rich solution flash tank and solvent tank, the desulfurizing tower connection solvent tank and poor rich liquid heat exchanger tube side before flash distillation, poor rich liquid heat exchanger tube side and poor rich liquid heat exchanger tube side after flash distillation before the connection flash distillation of rich solution flash tank, the tube side and shell side of poor rich liquid heat exchanger after regenerator connection flash distillation, poor rich liquid heat exchanger shell side is connected with poor rich liquid heat exchanger shell side before flash distillation after flash distillation, lean solution cooler connects solvent tank and poor rich liquid heat exchanger shell side before flash distillation.Exchanged heat by the shell side and tube side of poor rich liquid heat exchanger after poor rich liquid heat exchanger before flash distillation and flash distillation, system is heated up.
Description
Technical field
The utility model belongs to petroleum refining field, and in particular to a kind of desulfurization regeneration tower circulates heat riser.
Background technology
Gaseous hydrocarbon is the main component of refinery gas, and some is mainly alkane, and some also contains alkene, there is a small amount of non-hydrocarbon component
And inorganic component is (such as:H2, H2S, CO2, NH3 etc.).C1, C2 and above-mentioned inorganic component are not easy to liquefy, and are generally all deposited with gaseous state
.A large amount of liquefied gas components are such as free of, then referred to as dry gas.Some non-hydrocarbon compounds, such as:Hydrogen sulfide, mercaptan etc., although content is not
It is more, but to refinery gas be processed further using bringing many problems, catalyst poisoning is lost activity or cause equipment
Corrosion etc..So refinery gas before processing and utilization, is typically necessary carry out purified treatment.
Desulfurizing tower lean solution can carry out desulfurization with the lean solution of other devices in existing apparatus, when the regenerator of existing apparatus goes out
Existing failure needs to stop work, and now influences production efficiency.When regenerator goes into operation again, regenerative system is because of desulphurization system normal operation
And can not circulate, causing to be unable to normal circulation during regenerator ramp cycle, hydrogen sulfide content cannot be guaranteed in lean solution, from
And make the hydrogen sulfide content in desulfurizing tower exceeded.
The content of the invention
The utility model provides a kind of desulfurization regeneration tower circulation heat riser, can realize the circulation liter of desulfurization regeneration system
Temperature, hydrogen sulfide content in balance system, used technical scheme are：
A kind of desulfurization regeneration tower circulates heat riser, including desulfurizing tower and regenerative system, and the regenerative system includes regeneration
Tower, flash distillation after poor rich liquid heat exchanger, flash distillation before poor rich liquid heat exchanger, lean solution cooler, rich solution flash tank and solvent tank, it is described
Desulfurizing tower connects solvent tank and poor rich liquid heat exchanger tube side before flash distillation, poor rich liquid heat exchanger pipe before the connection flash distillation of rich solution flash tank
Journey and poor rich liquid heat exchanger tube side after flash distillation, the tube side and shell side of poor rich liquid heat exchanger, poor after flash distillation after regenerator connection flash distillation
Rich solution heat exchanger shell pass is connected with poor rich liquid heat exchanger shell side before flash distillation, and lean solution cooler is rich or poor before connecting solvent tank and flashing
Liquid heat exchanger shell pass.Exchanged heat by the shell side and tube side of poor rich liquid heat exchanger after poor rich liquid heat exchanger before flash distillation and flash distillation,
System is set to heat up.
Preferably, desulfurizing tower entrance sets standby entrance, and desulfurizing tower exit sets alternate outlets.Standby entrance with it is standby
Outlet is connected with sulfur system respectively, for introducing the lean solution come from sulfur system and output rich solution, can be occurred in regenerative system
During failure desulfuration operations are carried out as replacement regenerative system.
Preferably, the desulfurizing tower entrance sets poor liquid filter, and desulfurizing tower outlet sets rich solution filter.
Wherein, rich solution pump is set after the flash distillation between poor rich liquid heat exchanger and rich solution flash tank, solvent tank with it is standby
Lean pump is set between entrance.Rich solution pump provides rich solution and the circulation power of lean solution with lean pump for system.
Preferably, the desulfurizing tower both ends are connected by circulation line, described circulation line one end be located at standby entrance with
Between solvent tank, before the other end is located at alternate outlets and flashed between poor rich liquid heat exchanger.Set and circulate at desulfurizing tower both ends
Pipeline can be in regenerative system by disabling to the circulation temperature-rise period after opening, the original operating mode of reducing/regenerating system, system temporarily
Effect during restarting.
Wherein, the circulation line sets Flow-rate adjustment valve group.Flow-rate adjustment valve group can be used for regulation circulation line in work
Flow when making, to control the circulation temperature-rise period of whole system.
The utility model is simple in construction, can realize the circulation heating of desulfurizing tower regenerative system, can when system breaks down
Enable interim sulfur system and substitute regenerative system, system can carry out warming temperature, the hydrogen sulfide remained in absorption system after recovering.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
In figure：1- regenerators, poor rich liquid heat exchanger after 2- flash distillations, poor rich liquid heat exchanger before 3- flash distillations, 4- lean solution coolers,
5- rich solution flash tanks, the poor liquid filters of 6-, 7- rich solution filters, 8- lean pumps, 9- rich solution pumps, 10- desulfurizing towers, the storage of 11- solvents
Tank, the standby entrances of 12-, 13- alternate outlets, 14- circulation lines, 15- Flow-rate adjustment valve groups.
Embodiment
With reference to the accompanying drawings and examples, specific embodiment of the present utility model is described in further detail.
As shown in figure 1, a kind of desulfurization regeneration tower circulation heat riser, including desulfurizing tower 10 and regenerative system, regenerative system
Including regenerator 1, flash distillation after poor rich liquid heat exchanger 2, flash distillation before poor rich liquid heat exchanger 3, lean solution cooler 4, rich solution flash tank 5 with
Solvent tank 11, desulfurizing tower 10 connect solvent tank 11 and the tube side of poor rich liquid heat exchanger 3 before flash distillation, and the connection of rich solution flash tank 5 is dodged
The tube side of poor rich liquid heat exchanger 3 and the tube side of poor rich liquid heat exchanger 2 after flash distillation, poor rich liquid heat exchanger 2 after the connection flash distillation of regenerator 1 before steaming
Tube side and shell side, after flash distillation the shell side of poor rich liquid heat exchanger 2 with flash distillation before the shell side of poor rich liquid heat exchanger 3 be connected, lean solution cooler 4
Connect solvent tank 11 and the shell side of poor rich liquid heat exchanger 3 before flash distillation.The entrance of desulfurizing tower 10 sets standby entrance 12, and desulfurizing tower 10 goes out
Alternate outlets 13 are set at mouthful.The entrance of desulfurizing tower 10 sets poor liquid filter 6, and the outlet of desulfurizing tower 10 sets rich solution filter 7.It is de-
The both ends of sulphur tower 10 are connected by circulation line 14, and the one end of circulation line 14 is between standby entrance 12 and solvent tank 11, separately
Before one end is located at alternate outlets 13 and flashed between poor rich liquid heat exchanger 3.Flow-rate adjustment valve group 15 is set on circulation line 14.
Utility model works process is：During device normal operation, lean solution is come from the bottom of regenerator 1,120 DEG C or so of temperature,
The shell side of poor rich liquid heat exchanger 2 after flash distillation, 100 DEG C or so of temperature, then exchanged heat by the shell side of liquid heat exchanger 3 before flash distillation, then
Enter solvent tank 11 after lean solution cooler 4 is cooled to 40 DEG C or so, lean solution is boosted from solvent tank 11 through lean pump 8
To 1.5MPa, it is sent into desulfurizing tower 10 (pressure is in 0.85MPa) by poor liquid filter 6 and carries out gas sweetening, lean solution is in desulfurization
Contacted in tower 10 with back flow of gas, hydrogen sulfide (content is 4% or so) contained in gas is absorbed, rich in the poor of hydrogen sulfide gas
Liquid is now changed into rich solution (hydrogen sulfide content is 15% or so in rich solution), and rich solution comes from the bottom of desulfurizing tower 10, filtered by rich solution
Device 7, the poor tube side of heat exchanger 3 exchanges heat to 80 DEG C before flash distillation, into rich solution flash tank 5, from rich solution flash tank 5 out through rich solution pump 9
After boosting to 0.8MPa, the tube side of poor rich liquid heat exchanger 2 exchanges heat to 95-100 DEG C or so after entering back into flash distillation, finally enters regenerator
1 (pressure 0.08MPa) carries out rich solution regeneration.
The standby entrance 12 come from sulphur is also associated with before poor liquid filter 6,7 are connected with desulfuration before rich solution filter
The alternate outlets 13 of sulphur, when regenerative system breaks down, the lean solution of sulphur unit can by before poor liquid filter 6 it is standby enter
Mouth 12 enters desulfurizing tower 10, absorbs alternate outlets 13 before the rich solution after hydrogen sulfide passes through rich solution filter 7 and is sent into sulphur unit, from
And ensure the normal operation of desulphurization system.
Work as Failure elimination, when regenerative system goes into operation again, the substrate material of regenerator 1 shell of poor rich liquid heat exchanger 2 after flash distillation
Journey, the shell side of liquid heat exchanger 3 exchanges heat before flash distillation, then enters solvent tank 11 by lean solution cooler 4, after the boosting of lean pump 8, warp
Circulation line 14 is crossed to be connected to before flash distillation before poor rich liquid heat exchanger 3, into flash distillation before the tube side of poor rich liquid heat exchanger 3, by rich solution
Flash tank 5, after being boosted using rich solution pump 9, then the tube side of poor rich liquid heat exchanger 2 after flash distillation, regenerator 1 is finally entered, is formed
One closed cycle.Flow-rate adjustment valve group 15 can need that poor flow quantity is adjusted according to system.Regenerative system forms one
After circulation, circulating in temperature-rise period can ensure that the hydrogen sulfide content in whole system lean solution is down to 0.3% or so.Due to again
It is higher (hydrogen sulfide content is 3% or so) that hydrogen sulfide content in the raffinate in system is remained in when going into operation, into after desulphurization system,
Make the hydrogen sulfide content in desulfurizing tower exceeded, hydrogen sulfide content is up to 1% or so, therefore passes through side provided by the utility model
Method can solve the above problems.After whole system displacement is qualified, desulphurization system is changed into the lump, while the lean solution come from sulphur is cut
Go out, finishing device goes into operation.
Claims (6)
1. a kind of desulfurization regeneration tower circulates heat riser, including desulfurizing tower and regenerative system, it is characterised in that the regenerative system
Including poor rich liquid heat exchanger, lean solution cooler, rich solution flash tank and solvent before poor rich liquid heat exchanger, flash distillation after regenerator, flash distillation
Storage tank, the desulfurizing tower connection solvent tank and poor rich liquid heat exchanger tube side before flash distillation, it is rich or poor before the connection flash distillation of rich solution flash tank
Liquid heat exchanger tube pass and poor rich liquid heat exchanger tube side after flash distillation, the tube side and shell of poor rich liquid heat exchanger after regenerator connection flash distillation
Journey, poor rich liquid heat exchanger shell side is connected with poor rich liquid heat exchanger shell side before flash distillation after flash distillation, lean solution cooler connection solvent tank
With poor rich liquid heat exchanger shell side before flash distillation.
2. a kind of desulfurization regeneration tower circulation heat riser as claimed in claim 1, it is characterised in that the desulfurizing tower entrance is set
Purchase and use entrance, desulfurizing tower exit sets alternate outlets.
3. a kind of desulfurization regeneration tower circulation heat riser as claimed in claim 1, it is characterised in that the desulfurizing tower entrance is set
Poor liquid filter is put, desulfurizing tower outlet sets rich solution filter.
A kind of 4. desulfurization regeneration tower circulation heat riser as claimed in claim 1, it is characterised in that poor rich solution after the flash distillation
Rich solution pump is set between heat exchanger and rich solution flash tank, lean pump is set between solvent tank and standby entrance.
5. a kind of desulfurization regeneration tower circulation heat riser as claimed in claim 1, it is characterised in that the desulfurizing tower both ends lead to
Circulation line connection is crossed, between standby entrance and solvent tank, the other end is located at alternate outlets for described circulation line one end
Between poor rich liquid heat exchanger before flash distillation.
6. a kind of desulfurization regeneration tower circulation heat riser as claimed in claim 5, it is characterised in that the circulation line is set
Flow-rate adjustment valve group.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720584883.4U CN206924623U (en) | 2017-05-24 | 2017-05-24 | A kind of desulfurization regeneration tower circulates heat riser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720584883.4U CN206924623U (en) | 2017-05-24 | 2017-05-24 | A kind of desulfurization regeneration tower circulates heat riser |
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| Publication Number | Publication Date |
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| CN206924623U true CN206924623U (en) | 2018-01-26 |
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| CN201720584883.4U Expired - Fee Related CN206924623U (en) | 2017-05-24 | 2017-05-24 | A kind of desulfurization regeneration tower circulates heat riser |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108187455A (en) * | 2018-02-02 | 2018-06-22 | 浙江大学 | A kind of smoke carbon dioxide capture system based on two-phase absorbent |
| CN109777544A (en) * | 2019-03-19 | 2019-05-21 | 山东京博石油化工有限公司 | A kind of processing system of torch gas |
| CN114264171A (en) * | 2021-12-09 | 2022-04-01 | 沈阳铝镁设计研究院有限公司 | Semen cooling device and process for two-stage decomposition |
| CN114432887A (en) * | 2021-12-29 | 2022-05-06 | 江苏新海石化有限公司 | Amine liquid regeneration circulation system |
-
2017
- 2017-05-24 CN CN201720584883.4U patent/CN206924623U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108187455A (en) * | 2018-02-02 | 2018-06-22 | 浙江大学 | A kind of smoke carbon dioxide capture system based on two-phase absorbent |
| CN108187455B (en) * | 2018-02-02 | 2020-12-25 | 浙江大学 | Flue gas carbon dioxide capture system based on two-phase absorbent |
| CN109777544A (en) * | 2019-03-19 | 2019-05-21 | 山东京博石油化工有限公司 | A kind of processing system of torch gas |
| CN109777544B (en) * | 2019-03-19 | 2021-07-16 | 山东京博石油化工有限公司 | Flare gas treatment system |
| CN114264171A (en) * | 2021-12-09 | 2022-04-01 | 沈阳铝镁设计研究院有限公司 | Semen cooling device and process for two-stage decomposition |
| CN114432887A (en) * | 2021-12-29 | 2022-05-06 | 江苏新海石化有限公司 | Amine liquid regeneration circulation system |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180126 Termination date: 20210524 |