CN204824783U - Natural gas deacidification purifier - Google Patents
Natural gas deacidification purifier Download PDFInfo
- Publication number
- CN204824783U CN204824783U CN201520587724.0U CN201520587724U CN204824783U CN 204824783 U CN204824783 U CN 204824783U CN 201520587724 U CN201520587724 U CN 201520587724U CN 204824783 U CN204824783 U CN 204824783U
- Authority
- CN
- China
- Prior art keywords
- regenerator column
- column
- deacidification
- regeneration
- natural gas
- 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.)
- Expired - Fee Related
Links
Landscapes
- Gas Separation By Absorption (AREA)
Abstract
Natural gas deacidification purifier is including natural gas deacidification system and MDEA recycle and regeneration system, natural gas deacidification system includes deacidification tower and first check valve, has deacidification tower heat exchanger, deacidification packing layer and deacidification column plate layer from last integration extremely down in the deacidification tower, the MDEA recycle and regeneration system includes regenerator column, lean solution pump, lean solution cooler, rich or poor liquid heat exchanger, first relief pressure valve, second relief pressure valve and second check valve, has regenerator column heat exchanger, regeneration packing layer and regenerator column sheet layer from last integration extremely down in the regenerator column, the rich solution export of the bottom of deacidification tower is linked together through the cold side runner of first relief pressure valve, rich or poor liquid heat exchanger and the second relief pressure valve upper portion with the regeneration packing layer in proper order, and the bottom lean solution export of regenerator column is linked together through hot side flow way, lean solution cooler and the lean solution pump of the rich or poor liquid heat exchanger upper portion with the deacidification packing layer in proper order. The utility model discloses the integrated level is high, can prevent the high concentration MDEA solution foaming in the tower in high -efficient desorption feed gas in the sour gass such as H2S, CO2.
Description
Technical field
The utility model relates to natural gas liquids field, relates in particular to the device that a kind of Sweet natural gas removes the acid gas such as H2S, CO2 and organosulfur and the regeneration of MDEA lean solution.
Background technology
Usually containing CO2, H2S and organosulfur compound in Sweet natural gas, this three is commonly referred to as sour gas again.Hydrogen sulfide is a kind of colourless gas with the pungency foul smell of rotten egg, and poisonous, it can benumb the central nervous system of people, and frequent and contact with hydrogen sulfide can cause chronic poisoning; Hydrogen sulfide has strong reductibility, easy decomposes, the perishable metal when aerobic exists; The active centre being easily adsorbed on catalyzer makes catalyzer " poisoning "; Hydrosulphuric acid can be formed when there being water to exist and have stronger corrosion to metal; H2S also can produce hydrogen embrittlement corrosion.Carbonic acid gas, when there being water to exist, can form stronger corrosion to metal; CO2 too high levels, can reduce the calorific value of Sweet natural gas simultaneously.Organosulfur is most colourless poisonous, rudimentary organosulfur lighter than air, volatile.Organosulfur is poisoning can cause nausea, vomit, blood pressure drops, even cardiac failure, respiratory paralysis and dead.Therefore, in Chemical Manufacture, these content of acid gas in gas must be removed to the specification of standard-required.
MDEA in early 1980s as being that selective desulfurization solvent obtains industrial application, MDEA significant energy-saving effect, corrosion are comparatively slight owing to also having, solvent is not easily the degraded series of advantages such as rotten in practice.Become a kind of deacidifying process that development in recent years is the fastest.
The extracting tower of existing application MDEA technology is generally tray column or material filling type tower, and wherein the efficiency of tray column is high, easily causes MDEA solution foaming, although the problem that material filling type tower does not have MDEA solution easily to foam, but efficiency comparison is low.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of Sweet natural gas deacidification purification device, and this device integrated level is high, in efficient removal unstripped gas while the acid gas such as H2S, CO2, can prevent the high density MDEA solution foaming in tower.
In order to solve the problems of the technologies described above, the utility model adopts following technical scheme: Sweet natural gas deacidification purification device, comprises Sweet natural gas deacidification system and MDEA indirect regeneration;
Described Sweet natural gas deacidification system comprises extracting tower and the first vacuum breaker, be integrated with extracting tower interchanger, depickling packing layer and extracting tower flaggy from top to bottom successively in described extracting tower, and bottom first vacuum breaker of extracting tower interchanger is connected with the top of depickling packing layer;
Described MDEA indirect regeneration comprises regenerator column, lean pump, lean solution water cooler, poor rich liquid heat exchanger, the first reducing valve, the second reducing valve and the second vacuum breaker, regenerator column interchanger, regeneration filler layer and regenerator column flaggy is integrated with from top to bottom successively in described regenerator column, and bottom second vacuum breaker of regenerator column interchanger is connected with the top of regeneration filler layer, is also provided with the reboiler be connected with described regenerator column at the bottom of the tower of described regenerator column outward;
The rich bottoms liquid outlet of described extracting tower is connected with the top of the second reducing valve with the regeneration filler layer of described regenerator column through the cold side runner of the first reducing valve, poor rich liquid heat exchanger successively, and the bottom lean solution outlet of described regenerator column is connected with the top of lean pump with the depickling packing layer of described extracting tower through the hot side runner of poor rich liquid heat exchanger, lean solution water cooler successively.
Further, be also integrated with depickling water wash column flaggy in described extracting tower, described depickling water wash column flaggy is between extracting tower interchanger and depickling packing layer.
Further, be also integrated with regeneration washing column plate layer in described regenerator column, described regeneration washing column plate layer is between regenerator column interchanger and regeneration filler layer.
Further, the top of described regenerator column goes out acid gas mouth and is connected with an acid gas adsorber, and the acid gas of discharging from described regenerator column discharges after the absorption of described acid gas adsorber.
The beneficial effects of the utility model are: the utility model is integrated with depickling packing layer and extracting tower flaggy in extracting tower, the extracting tower flaggy of bottom can improve the efficiency of tower as far as possible, the depickling packing layer on top can prevent foaming, therefore the utility model can utilize the acid gas such as H2S, CO2 in MDEA solution removal unstripped gas efficiently, and the high density MDEA solution foaming that can prevent in tower, avoid the working efficiency affecting tower; And depickling water wash column flaggy can a small amount of MDEA of going out of the absorption cleaning band of gas, prevents MDEA to bring into lower procedure; MDEA lean solution can also be generated by MDEA lean solution regeneration system rapidly simultaneously, reach recycling of MDEA.The utility model considers making full use of of MDEA, can reduce the discharge of sour gas, protection of the environment, and reduces the waste of MDEA, and device height is integrated, reduces occupation area of equipment, can improve economic and practical.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model one embodiment.
Being labeled as of each parts in accompanying drawing: 1 extracting tower, t0 extracting tower interchanger, t1 depickling water wash column flaggy, t2 depickling packing layer, t3 extracting tower flaggy, 2 regenerator columns, t4 regenerator column interchanger, t5 regeneration washing column plate layer, t6 regeneration filler layer, t7 regenerator column flaggy, 3 poor rich liquid heat exchangers, 4 reboilers, 5 lean solution water coolers, 6 acid gas adsorbers, P1 lean pump, v1 first reducing valve, v2 second reducing valve, v3 first vacuum breaker, v4 second vacuum breaker.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described:
See Fig. 1.
The Sweet natural gas deacidification purification device of the utility model one embodiment, comprises Sweet natural gas deacidification system and MDEA indirect regeneration;
Described Sweet natural gas deacidification system comprises extracting tower 1 and the first vacuum breaker v3, be integrated with extracting tower interchanger t0, depickling packing layer t2 and extracting tower flaggy t3 in described extracting tower 1 from top to bottom successively, and the bottom first vacuum breaker v3 of extracting tower interchanger t0 is connected with the top of depickling packing layer t2;
Described MDEA indirect regeneration comprises regenerator column 2, lean pump P1, lean solution water cooler 5, poor rich liquid heat exchanger 3, first reducing valve v1, the second reducing valve v2 and the second vacuum breaker v4, regenerator column interchanger t4, regeneration filler layer t6 and regenerator column flaggy t7 is integrated with from top to bottom successively in described regenerator column 2, and the bottom second vacuum breaker v4 of regenerator column interchanger t4 is connected with the top of regeneration filler layer t6, the reboiler 4 be connected with described regenerator column 2 is also installed at the bottom of the tower of described regenerator column 2 outward;
The rich bottoms liquid outlet of described extracting tower 1 is connected with the top of the regeneration filler layer t6 of described regenerator column 2 with the second reducing valve v2 through the cold side runner of the first reducing valve v1, poor rich liquid heat exchanger 3 successively, and the bottom lean solution outlet of described regenerator column 2 is connected with the top of the depickling packing layer t2 of described extracting tower 1 with lean pump P1 through the hot side runner of poor rich liquid heat exchanger 3, lean solution water cooler 5 successively.
In the present embodiment, be also integrated with depickling water wash column flaggy t1 in described extracting tower 1, described depickling water wash column flaggy t1 is between extracting tower interchanger t0 and depickling packing layer t2.
In the present embodiment, be also integrated with regeneration washing column plate layer t5 in described regenerator column 2, described regeneration washing column plate layer t5 is between regenerator column interchanger t4 and regeneration filler layer t6.
In the present embodiment, the top of described regenerator column 2 goes out acid gas mouth and is connected with an acid gas adsorber 6, and the acid gas of discharging from described regenerator column 2 discharges after the absorption of described acid gas adsorber 6.Can acid gas be reclaimed like this, prevent its contaminate environment.
It will be apparent to those skilled in the art that " connection " described in the utility model refers to and pass through pipeline communication.
The working process of the Sweet natural gas deacidification purification device of the utility model one embodiment is: unstripped gas is pressurized to 4.0 ~ 6.0Mpag through compress cell, temperature enters extracting tower 1 from the bottom of extracting tower 1 after 35 ~ 45 DEG C, and from bottom to top successively through extracting tower flaggy t3, depickling packing layer t2 and depickling water wash column flaggy t1, unstripped gas is through extracting tower flaggy t3 and depickling packing layer t2, contact with MDEA is reverse, thus make the H2S in unstripped gas, the acid gas such as CO2 are absorbed in MDEA solution, the temperature of the purified gas after depickling is 50 ~ 60 DEG C, and further across depickling water wash column flaggy t1, contact with water is reverse, through washing removing purified gas in a small amount of MDEA, final purification gas enters extracting tower interchanger t0, be cooled to 32 ~ 40 DEG C, pressure is discharged from the top of extracting tower 1 after 4.9 ~ 5.9Mpag, purified gas phlegma in extracting tower interchanger t0 relies on gravity to get back to depickling packing layer t2 through the first vacuum breaker v3,
And absorb H2S, the MDEA rich solution of the acid gas such as CO2 exports successively through the first reducing valve v1 from the rich bottoms liquid of extracting tower 1, the cold side runner of poor rich liquid heat exchanger 3 and the second reducing valve v2 enter the regeneration filler layer t6 of regenerator column 2, MDEA rich solution is through the first reducing valve v1, pressure adjusting is 0.4 ~ 0.5Mpag, temperature is 40 ~ 50 DEG C, again through poor rich liquid heat exchanger 3, preheating temperature is to 90 ~ 100 DEG C, second reducing valve v2 is for regulating the pressure into regenerator column, then MDEA rich solution is from top to bottom through regeneration filler layer t6 and regenerator column flaggy t7, and contact with the rich solution steam being heated to 110 ~ 120 DEG C through regenerator column tower bottom reboiler 4 is reverse, make H2S, the acid gas such as CO2 depart from from MDEA rich solution, when flowing out from the bottom lean solution outlet of regenerator column 2 like this, MDEA rich solution changes MDEA lean solution into, then MDEA lean solution is successively through the hot side runner of poor rich liquid heat exchanger 3, lean solution water cooler 5 and lean pump P1 enter the depickling packing layer t2 of extracting tower 1, when MDEA lean solution flows out from the bottom lean solution outlet of regenerator column 2, temperature is 110 ~ 120 DEG C, pressure is 40 ~ 50Kpag, through poor rich liquid heat exchanger 3, temperature drops to 70 ~ 80 DEG C, again through lean solution water cooler 5, be cooled to 40 ~ 45 DEG C, eventually pass the top being transported to depickling packing layer t2 after lean pump P1 is pressurized to 4.0 ~ 6.0Mpag, reach recycling of MDEA.
Absorb the rich solution steam of the acid gas such as H2S, CO2 from bottom to top through the regeneration washing column plate layer t5 of regenerator column 2, contact with water is reverse, in washing removing rich solution steam with a small amount of MDEA, then regenerator column interchanger t4 is entered, be cooled to 32 ~ 40 DEG C, finally enter acid gas adsorber 6, acid gas is adsorbed rear discharge, and the lime set in regenerator column interchanger t4 relies on gravity to get back to regeneration filler layer t6 through the second vacuum breaker v4.
It is more than a kind of embodiment of the present utility model.It should be pointed out that for the person of ordinary skill of the art, under the prerequisite not departing from the utility model principle, some distortion and improvement can also be made, all belong to protection domain of the present utility model.
Claims (4)
1. Sweet natural gas deacidification purification device, is characterized in that: comprise Sweet natural gas deacidification system and MDEA indirect regeneration;
Described Sweet natural gas deacidification system comprises extracting tower (1) and the first vacuum breaker (v3), be integrated with extracting tower interchanger (t0), depickling packing layer (t2) and extracting tower flaggy (t3) in described extracting tower (1) from top to bottom successively, and the bottom first vacuum breaker (v3) of extracting tower interchanger (t0) is connected with the top of depickling packing layer (t2);
Described MDEA indirect regeneration comprises regenerator column (2), lean pump (P1), lean solution water cooler (5), poor rich liquid heat exchanger (3), first reducing valve (v1), second reducing valve (v2) and the second vacuum breaker (v4), regenerator column interchanger (t4) is integrated with from top to bottom successively in described regenerator column (2), regeneration filler layer (t6) and regenerator column flaggy (t7), and the bottom second vacuum breaker (v4) of regenerator column interchanger (t4) is connected with the top of regeneration filler layer (t6), the reboiler (4) be connected with described regenerator column (2) is also installed outward at the bottom of the tower of described regenerator column (2),
The rich bottoms liquid outlet of described extracting tower (1) is connected with the top of the second reducing valve (v2) with the regeneration filler layer (t6) of described regenerator column (2) through the cold side runner of the first reducing valve (v1), poor rich liquid heat exchanger (3) successively, and the bottom lean solution outlet of described regenerator column (2) is connected with the top of lean pump (P1) with the depickling packing layer (t2) of described extracting tower (1) through the hot side runner of poor rich liquid heat exchanger (3), lean solution water cooler (5) successively.
2. Sweet natural gas deacidification purification device as claimed in claim 1, it is characterized in that: be also integrated with depickling water wash column flaggy (t1) in described extracting tower (1), described depickling water wash column flaggy (t1) is positioned between extracting tower interchanger (t0) and depickling packing layer (t2).
3. Sweet natural gas deacidification purification device as claimed in claim 1 or 2, it is characterized in that: be also integrated with regeneration washing column plate layer (t5) in described regenerator column (2), described regeneration washing column plate layer (t5) is positioned between regenerator column interchanger (t4) and regeneration filler layer (t6).
4. Sweet natural gas deacidification purification device as claimed in claim 1 or 2, it is characterized in that: the top of described regenerator column (2) goes out acid gas mouth and is connected with an acid gas adsorber (6), the acid gas of discharging from described regenerator column (2) discharges after the absorption of described acid gas adsorber (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520587724.0U CN204824783U (en) | 2015-08-06 | 2015-08-06 | Natural gas deacidification purifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520587724.0U CN204824783U (en) | 2015-08-06 | 2015-08-06 | Natural gas deacidification purifier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204824783U true CN204824783U (en) | 2015-12-02 |
Family
ID=54682402
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520587724.0U Expired - Fee Related CN204824783U (en) | 2015-08-06 | 2015-08-06 | Natural gas deacidification purifier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204824783U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105695017A (en) * | 2016-04-25 | 2016-06-22 | 重庆耐德能源装备集成有限公司 | Natural gas purifying system |
| CN106890545A (en) * | 2017-04-05 | 2017-06-27 | 安徽宣城金宏化工有限公司 | The separating technology and equipment of hydrogen sulfide in a kind of carbon disulphide production tail gas |
| CN109224772A (en) * | 2018-09-14 | 2019-01-18 | 董恬纲 | U-shaped double tower circulation hydraulic pressure difference is molten to release trapping CO2Device |
| CN114632409A (en) * | 2022-02-23 | 2022-06-17 | 国能龙源环保有限公司 | Carbonyl sulfide and hydrogen sulfide removal system suitable for different concentrations and use method thereof |
-
2015
- 2015-08-06 CN CN201520587724.0U patent/CN204824783U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105695017A (en) * | 2016-04-25 | 2016-06-22 | 重庆耐德能源装备集成有限公司 | Natural gas purifying system |
| CN106890545A (en) * | 2017-04-05 | 2017-06-27 | 安徽宣城金宏化工有限公司 | The separating technology and equipment of hydrogen sulfide in a kind of carbon disulphide production tail gas |
| CN109224772A (en) * | 2018-09-14 | 2019-01-18 | 董恬纲 | U-shaped double tower circulation hydraulic pressure difference is molten to release trapping CO2Device |
| CN109224772B (en) * | 2018-09-14 | 2021-04-30 | 董恬纲 | U-shaped double-tower circulating liquid differential pressure dissolution release CO capture2Device for measuring the position of a moving object |
| CN114632409A (en) * | 2022-02-23 | 2022-06-17 | 国能龙源环保有限公司 | Carbonyl sulfide and hydrogen sulfide removal system suitable for different concentrations and use method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101417183B (en) | Technique of recovering methanol in low-temperature methanol washing tail-gas | |
| CN102806000B (en) | Energy-saving one-step rectisol method | |
| CN204824783U (en) | Natural gas deacidification purifier | |
| CN202751942U (en) | Sulphur tail gas absorption and purification combined device | |
| CN205995240U (en) | A kind of efficient absorption tower being applied to sulphur-containing exhaust gas absorption | |
| CN101108988A (en) | Biogas cleaning equipment and purifying technique thereof | |
| CN102302888A (en) | Organic waste gas recycling device with functions of saving energy and prolonging service life of absorbing agent | |
| CN102895840B (en) | Regenerable wet flue gas desulfurization process | |
| CN1137753C (en) | Process for removing CO2 and H2S from biological gas | |
| CN217568170U (en) | Desorption device suitable for amine method carbon dioxide entrapment system | |
| CN202355997U (en) | CO2 absorption tower and low-temperature methanol washing equipment comprising same | |
| CN202440471U (en) | Oil gas recovery system | |
| CN102895848B (en) | Renewable wet flue gas desulfurization technology | |
| CN104556035A (en) | Preparation method and preparation device of food-grade high-purity liquid carbon dioxide | |
| CN1872679A (en) | Method for preparing liquid carbon dioxide in foodstuff level by using tail gas of cement kiln | |
| CN203429147U (en) | Methane purifying system | |
| CN202173868U (en) | Organic waste gas recovery device saving energy and prolonging service life of sorbent | |
| CN204891549U (en) | Natural gas desulfurization decarbonization system of coupling sour gas concentration | |
| CN207525007U (en) | A kind of low-concentration ammonia-nitrogen removes equipment | |
| CN201735318U (en) | Absorption tower for deep gas decarbonization | |
| CN201889156U (en) | Combined alkaline washing tower | |
| CN109609225A (en) | A kind of system of methane purification biological fuel gas | |
| CN205164444U (en) | Flue gas recirculation desulfurization system | |
| CN104830371B (en) | The apparatus and method of C2 in a kind of recovery oil refinery dry gas | |
| CN210855897U (en) | For high content of CO2Ethane gas deep purification device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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: 20151202 Termination date: 20200806 |