CN104193034B - A kind of amine purification processes system - Google Patents
A kind of amine purification processes system Download PDFInfo
- Publication number
- CN104193034B CN104193034B CN201410461234.6A CN201410461234A CN104193034B CN 104193034 B CN104193034 B CN 104193034B CN 201410461234 A CN201410461234 A CN 201410461234A CN 104193034 B CN104193034 B CN 104193034B
- Authority
- CN
- China
- Prior art keywords
- elimination
- metal cation
- tank
- amine
- heat stable
- 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
- Removal Of Specific Substances (AREA)
- Gas Separation By Absorption (AREA)
Abstract
The present invention relates to a kind of amine purification and process system, including elimination float system, elimination heat stable salt anion system, remove metal cation system and circulation fluid case and the recycle liquid pump being attached thereto; It is sequentially connected with by pipeline between elimination float system, elimination heat stable salt anion system and elimination metal cation system, circulation fluid case is connected with demineralized water supply pipeline and recycle liquid pump with valve respectively by pipeline, and recycle liquid pump is connected with the elimination heat stable salt anion tank in the elimination float tank in elimination float system, elimination heat stable salt anion system and the elimination metal cation tank in elimination metal cation system with valve respectively by pipeline. Amine liquid after being processed by present system, it is possible to the metal cation level in amine liquid system is reduced to normal level, is conducive to the stable operation of desulfurizer.
Description
Technical field
The present invention relates to a kind of amine purification and process system, particularly to the cleaning treatment system of the amine liquid used in the sulfur removal technology of oil plant and natural gas plant.
Background technology
In oil and gas processing gas purification process, adopting hydramine method desulfurization and decarburization is a kind of of paramount importance method, and wherein the selective absorption technique of N methyldiethanol amine (MDEA) is current domestic most popular gas purifying technique. MDEA has the advantages that low energy consumption, low-corrosiveness and low degradation rate, has developed very rapid since coming out from the eighties in last century. So far the whole gas sweetening decarburization field of the application nearly cover of MDEA and formula solvent thereof.
The requirement purified recently as environmental protection and energy saving aspect is further strict, and the performance of gas cleaning plant and the prescription of amine liquid is also more and more higher. Owing to feeding gas is brought into and the reason such as the oxidative degradation of amine in hydramine sweetening process, bringing a series of harm to device: corrosion of equipment, amine liquid foams, and cleaning filter, changes frequently, simultaneously amine liquid run damage serious. Typical amine purification processing procedure has distillating recovering solvent at present, and adopts filtration, ion exchange to remove the method for impurity in amine liquid. Wherein the method for filtration+ion exchange is applied relatively broad greatly because of simple to operate, treating capacity. But common amine purification method considers the removal of solid suspension and thermal-stable salt, and have ignored the removal of strong cation in amine liquid.
Such as patent of invention 200810057069.2, disclose a kind of cleaning treatment system, be only provided with the device removing solid suspension and thermal-stable salt, it does not have remove cationic device. In amine liquid system due to unstripped gas carry, equipment corrosion etc. can cause a large amount of accumulations of metal cation in amine liquid. A large amount of existence of metal cation can cause problems with: gas product is defective, and exhaust emissions exceeds standard; Amine absorption and analyzing efficiency are low, and in lean solution, acid gas residual quantity is big, and device disposal ability declines; Shape scaling salt block system pipeline. Especially, after using anionexchangetechnique to remove the heat stable salt anion in amine liquid, the impact of metal cation particularly highlights, and therefore, the removal to metal cation is also the problem that can not be ignored. The present invention is the technological improvement development carried out on the basis of patent 200810057069.2.
Summary of the invention
The present invention is directed to the existing state of the art, it is provided that a kind of amine purification system, it is possible to remove the heat stable salt anion in amine liquid and metal cation simultaneously, make amine purification. The method can operate with the system of the problem caused in the devices such as alcohol amine desulfurization because of metal cation too high levels.
The object above of the present invention is achieved by the following technical solution:
A kind of amine purification processes system, including elimination float (SSX) system, elimination heat stable salt anion (HSSX) system, removes metal cation (SCX) system and circulation fluid case and the recycle liquid pump being attached thereto. It is sequentially connected with by pipeline between elimination float system, elimination heat stable salt anion system and elimination metal cation system, described circulation fluid case is connected with demineralized water supply pipeline and the recycle liquid pump from user with valve respectively by pipeline, and described recycle liquid pump is connected with the elimination heat stable salt anion tank in the elimination float tank in elimination float system, elimination heat stable salt anion system and the elimination metal cation tank in elimination metal cation system with valve respectively by pipeline.
This cleaning system comprises elimination metal cation system, and elimination metal cation system is placed in after removing heat stable salt anion system, adopting cationic resin in elimination metal cation (SCX) system, the acid solution that the cationic resin after saturated adopts mass concentration to be 3% regenerates. Amine liquid, after entrance system, first removes float and heat stable salt anion, enters back into SCX system and removes the metal cation in amine liquid by cation exchange resin.
Advantages of the present invention is as follows:
1. the amine liquid after being processed by SCX system, it is possible to the metal cation level in amine liquid system is reduced to normal level, is conducive to the stable operation of desulfurizer.
2. after elimination metal cation (SCX) system being placed in elimination heat stable salt anion (HSSX) system canister, it is possible to reduce cation exchange resin to the cationic absorption of amine.
3. the anion exchange aqueous slkali after saturated regenerates, cation exchange resin acid solution after saturated regenerates, the mixing of two kinds of regenerative wastewater can reduce the pH value of waste water so that it is more disposable after entering Waste Water Treatment, properly functioning without influence on waste water system.
Accompanying drawing explanation
Fig. 1 is the amine cleaning system flow chart of the present invention.
Detailed description of the invention
As it is shown in figure 1, be system structure signal and the flow chart of the present invention. Including elimination float (SSX) tank 1, elimination heat stable salt anion (HSSX) tank 2, elimination metal cation (SCX) tank 3 and circulation fluid case 4 and the recycle liquid pump 5 being attached thereto. It is sequentially connected with by pipeline between elimination float tank 1, elimination heat stable salt anion tank 2 and elimination metal cation tank 3, circulation fluid case 4 is connected with demineralized water supply pipeline and the recycle liquid pump 5 from user with valve respectively by pipeline, and recycle liquid pump 5 is connected with elimination float tank 1, elimination heat stable salt anion tank 2 and elimination metal cation tank 3 with valve respectively by pipeline.
This cleaning system comprises elimination metal cation tank 3, and elimination metal cation tank 3 is placed in after removing heat stable salt anion tank 2, adopting cationic resin in elimination metal cation (SCX) tank 3, the acid solution that the cationic resin after saturated adopts mass concentration to be 3% regenerates.
Purification process: non-purified amine liquid is introduced into elimination float (SSX) tank 1 to remove the solid impurity in amine liquid, the amine liquid of removing float enters back into elimination heat stable salt anion (HSSX) tank 2 and removes heat stable salt anion, subsequently entering the metal cation that elimination metal cation (SCX) tank 3 is removed in amine liquid, the purification amine liquid after elimination cation returns amine system.
After system runs a period of time, the float that SSX tank retains gets more and more, thus reducing its disposal ability. When SSX tank filtration yield reaches its setting value or inlet outlet pressure differential reaches setting value, it is necessary to SSX tank is carried out, to recover its operating flux.
1) row's amine is just washed
Circulation fluid enters SSX tank from SSX tank top forward, and adjustment flow is setting value, and the purification amine in SSX tank is pressed into user's amine pipeline. Circulation flushing SSX tank, rinses water outlet and changes and enter in cyclic water tank, to reduce the loss of amine.
2) backwash
Demineralized water adverse current enters SSX tank, and adjustment flow is setting value. When volume of intaking reaches setting value, SSX tank cleans and terminates, and can enter amine and start new circulation.
After HSSX tank and SCX tank run certain time, when the exchange capacity of alternative one reaches the amine liquid exchange capacity differential pressure of setting more than setting value, it is necessary to it is carried out Regeneration Treatment, makes it again possess deionizing ability.
1) row's amine is just washed
Circulation fluid forward enters HSSX tank and SCX tank, utilizes the solution in circulation fluid case 4 to be circulated cleaning, reduces the loss of amine.
2) regeneration
The flow regulating demineralized water is setting value, quantitative with amount of calculation pump, HSSX tank reversely pumps into the sodium hydroxide solution regeneration of 4% (quality), SCX tank reversely pumps into the hydrochloric acid solution of 3% (quality) and regenerates, and regenerated liquid adverse current enters in tank, so that resin can loosen and again arrange, regenerated liquid is made to be uniformly distributed, improve regeneration effect, when acid, alkali consumption reach setting value, regeneration ending.
3) displacement
After regeneration ending, stopping into acid, alkali liquor, continue adverse current and enter demineralized water, adjustment flow of inlet water is setting value, carries out replacement operator. The acid remained in the middle of resin, alkali liquor can be discharged by replacing. After water outlet conductance reaches setting value, replacement completion.
In regeneration and replacement process, alkali pump first starts than sour pump and stops afterwards, is alkalescence after keeping regeneration water outlet mixing.
4) just wash
Circulation fluid forward enters HSSX tank and SCX tank, is then refluxed for circulation fluid case. Adjustment flow is setting value, when running to setting value, is just washing end.
5) amine setting-out is entered
Amine liquid forward enters HSSX tank and SCX tank, and the replacing water in HSSX tank is pressed into circulation fluid case, when entering amine volume to setting value, stops setting-out, starts new circulation.
Embodiment:
In tower, I oil vapor treatment station belongs to oil vapor treatment station, first, I gas field development test block in Tarim Oilfield tower. There is two major features in natural gas ore deposit handled by this station: a, belong to Condensate Field; B, gas mineral water salinity are significantly high. Go into operation the initial stage in this station in October, 2010, a large amount of condensates enter amine liquid with unstripped gas, amine liquid is caused to pollute, amine liquid is muddy, band oil substantially, foaming is serious, cause flash distillation gas carrying liquid, absorption tower foaming to block liquid, liquid phase circulates freely, the problems such as liquid are blocked in regenerator foaming, even occurred that primary system stopped, and have impact on the stable operation of desulphurization system and desulfurized effect time serious.
This situation needs amine purifier except there to be heat stable salt and defecator in removal amine liquid, must also have the device processing amine liquid cationic simultaneously, otherwise be extremely difficult to intended purification target, even influence whether the stable operation of amine cleaning system.
In order to solve the problems referred to above, on the basis of elimination float (SSX) system and elimination heat stable salt anion (HSSX) system, adding elimination metal cation (SCX) system, assembly of the invention formally comes into operation in December, 2010 I oil vapor treatment station in tower.Coming into operation latter five days, amine liquid foamed phenomenon is effectively controlled, and desulphurization system amine liquid turbid phenomenon is improved. The operational effect of apparatus of the present invention refers to table 1, for the steady salt of heat in device portal and exit amine liquid, cation and anion test Data Comparison. Anion and cation exchange resin unit on this covering device serves good clean-up effect equally, effectively slow down equipment corrosion, it is therefore prevented that tower that in amine liquid, the accumulation of salinity causes, device equipment salification phenomenon.
Table 1
Amine liquid, after entrance system, first removes float and heat stable salt anion, enters back into elimination metal cation system and removes the metal cation in amine liquid by cation exchange resin. Owing to adding elimination metal cation system, it is possible to remove the metal cation in amine liquid system, effectively slow down equipment corrosion, it is therefore prevented that tower that in amine liquid, the accumulation of salinity causes, device equipment salification phenomenon, it is ensured that the stable operation of desulfurizer.
Claims (3)
1. an amine purification processes system, it is characterised in that: include elimination float system, elimination heat stable salt anion system, elimination metal cation system and circulation fluid case and the recycle liquid pump being attached thereto; It is sequentially connected with by pipeline between described elimination float system, elimination heat stable salt anion system and elimination metal cation system, described circulation fluid case is connected with demineralized water supply pipeline and recycle liquid pump with valve respectively by pipeline, and described recycle liquid pump is connected with the elimination heat stable salt anion tank in the elimination float tank in elimination float system, elimination heat stable salt anion system and the elimination metal cation tank in elimination metal cation system with valve respectively by pipeline.
2. amine purification according to claim 1 processes system, it is characterised in that: after described elimination metal cation system is placed in elimination heat stable salt anion system, elimination metal cation system adopts cationic resin.
3. amine purification according to claim 2 processes system, it is characterised in that: the acid solution adopting mass concentration to be 3% after described cationic resin is saturated regenerates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410461234.6A CN104193034B (en) | 2014-09-11 | 2014-09-11 | A kind of amine purification processes system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410461234.6A CN104193034B (en) | 2014-09-11 | 2014-09-11 | A kind of amine purification processes system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104193034A CN104193034A (en) | 2014-12-10 |
| CN104193034B true CN104193034B (en) | 2016-06-08 |
Family
ID=52078456
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410461234.6A Active CN104193034B (en) | 2014-09-11 | 2014-09-11 | A kind of amine purification processes system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104193034B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106178591B (en) * | 2015-05-08 | 2019-03-15 | 北京思践通科技发展有限公司 | A method of purification organic amine |
| CN107930399A (en) * | 2017-11-21 | 2018-04-20 | 攀钢集团攀枝花钢铁研究院有限公司 | The removal methods of foreign ion in a kind of organic amine desulfuration solution |
| CN108392896A (en) * | 2018-05-07 | 2018-08-14 | 山东胜星化工有限公司 | A kind of amine liquid removes the control system of coke powder purifier |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101219815A (en) * | 2008-01-29 | 2008-07-16 | 王建军 | Cleaning treatment system |
| AU2008202311A1 (en) * | 2008-05-22 | 2009-12-10 | Al-Samadi, Riad Dr | High Water Recovery Single Stage Membrane Process |
| CN103979716A (en) * | 2014-05-22 | 2014-08-13 | 西安热工研究院有限公司 | System and method for purifying and recycling amine liquid of smoke CO2 trapping system for coal-fired power plant |
| CN204058129U (en) * | 2014-09-11 | 2014-12-31 | 王建军 | A kind of amine purification treatment system |
-
2014
- 2014-09-11 CN CN201410461234.6A patent/CN104193034B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101219815A (en) * | 2008-01-29 | 2008-07-16 | 王建军 | Cleaning treatment system |
| AU2008202311A1 (en) * | 2008-05-22 | 2009-12-10 | Al-Samadi, Riad Dr | High Water Recovery Single Stage Membrane Process |
| CN103979716A (en) * | 2014-05-22 | 2014-08-13 | 西安热工研究院有限公司 | System and method for purifying and recycling amine liquid of smoke CO2 trapping system for coal-fired power plant |
| CN204058129U (en) * | 2014-09-11 | 2014-12-31 | 王建军 | A kind of amine purification treatment system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104193034A (en) | 2014-12-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Verma et al. | Amine system problems arising from heat stable salts and solutions to improve system performance | |
| CN100333823C (en) | Method for purifying deterioration amine liquid using highly basic anion exchange resin | |
| CN101502742A (en) | Method for removing thermostable salt in amine liquid for desulphurization | |
| CN103214115B (en) | Water treatment method of strong acid cation exchange resin incomplete regeneration | |
| CN103979716A (en) | System and method for purifying and recycling amine liquid of smoke CO2 trapping system for coal-fired power plant | |
| CN104193034B (en) | A kind of amine purification processes system | |
| CN101219815B (en) | Cleaning treatment system | |
| CN109453825A (en) | A kind of commercial plant and application method reducing the corrosion of hydramine depriving hydrogen sulphide system equipment | |
| CN204058129U (en) | A kind of amine purification treatment system | |
| JP5564967B2 (en) | Regeneration method of ion exchange resin used for regeneration of amine liquid | |
| CN209423123U (en) | A kind of rich amine solution filtration system in LNG deacidifying process | |
| CN112742177A (en) | Method and device for purifying and removing heat stable salt in amine liquid | |
| JP7057212B2 (en) | Water treatment method | |
| CN203090758U (en) | Filtering and reactivation device for skid-mounted natural gas desulfurized amine solution | |
| CN103127745A (en) | Purification method for decarburization alcohol amine in CO2 recovery apparatus | |
| CN214781578U (en) | Online sulfolane dechlorination system capable of delaying equipment corrosion | |
| JP3238723U (en) | Low loss organic amine solution purifier | |
| TWI399360B (en) | Recovery equipment for tetramethylammonium hydroxide and its method | |
| CN208594054U (en) | A kind of poor amine liquid device of hybrid resin bed purification | |
| CN115990394B (en) | Desalination and sodium removal system and method in ionic liquid desulfurization | |
| CN106517575B (en) | Classified collection, recycling and treatment method for SCR denitration catalyst cleaning wastewater | |
| CN103223266A (en) | Resin-exchange amine liquid purifying system | |
| CN111056671A (en) | Amine liquid purification skid-mounted system and method thereof | |
| CN110354666A (en) | A kind of commercial plant and application method reducing hydramine depriving hydrogen sulphide system operation cost | |
| CN203525729U (en) | Water-saving device for cleaning ion exchange resin |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180226 Address after: 100044 Beijing Xicheng District car Gong Zhuang Street No. 4 Wuhua Building A2303 Patentee after: Beijing Shibo Hengye Technology Co., Ltd. Address before: 100044 Beijing Xicheng District car Gong Zhuang Street No. 4 Wuhua Building A2303 Patentee before: Wang Jianjun |
|
| TR01 | Transfer of patent right |