CN212375042U - Amine liquid purifies sled dress system - Google Patents
Amine liquid purifies sled dress system Download PDFInfo
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- CN212375042U CN212375042U CN202020106604.5U CN202020106604U CN212375042U CN 212375042 U CN212375042 U CN 212375042U CN 202020106604 U CN202020106604 U CN 202020106604U CN 212375042 U CN212375042 U CN 212375042U
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Abstract
The utility model provides an amine liquid purification skid-mounted system, which increases leather latex fiber and active carbon to adsorb oil stain and adopts chelate resin to adsorb metal cation in amine liquid on the basis of purifying amine liquid by anion exchange process, thereby reducing the pollution of oil stain and metal cation in amine liquid; meanwhile, chelate resin is regenerated by acid liquor, anion resin is regenerated by alkali liquor, the acid and alkali are neutralized and then discharged to a sewage treatment system, the cost of sewage treatment is saved, and the impact of sewage on the treatment system is reduced.
Description
Technical Field
The utility model relates to an amine liquid purifies the field, particularly, relates to an amine liquid purifies sled dress system.
Background
Due to long-term operation of the desulfurization and decarburization amine liquid system, degradation products and corrosion products in the system are accumulated continuously. Wherein, the salt produced by the reaction of organic amine and acidic components, such as formate, acetate, sulfate, hydrochloride, oxalate, etc., which can not be regenerated by heating, is generally called as Heat Stable Salt (HSS). The anion of the thermal stable salt is combined with amine, solvent amine can not be recovered by a regeneration method, so that the solvent amine with the same mole number as that of the thermal stable salt is fixed and can not be effectively utilized, the absorption amount of acid gas is reduced along with the increase of the running time, and the reduction of the absorption capacity needs to be compensated by continuously supplementing fresh solvent. Meanwhile, the corrosivity of the solvent is enhanced due to the accumulation of the heat stable salt, so that amine liquid is easy to foam, and the operation stability of the device is affected. Therefore, in order to ensure the safe and stable operation of the device, slow down the corrosion of equipment, reduce impurities in the amine liquid and improve the absorption amount of the acid gas by the amine liquid, the purification of the amine liquid is imperative.
In terms of the technology and the actual situation mastered at present, the anion exchange technology is the most widely, economically and practically applicable technology for removing the heat stable salt. The most applied at present is the anion exchange process, which has the advantages of simple equipment, less investment, high efficiency, simple operation and the like, but the process can not remove the pollution of metal cations (such as iron, copper, calcium ions and the like) in amine liquid and oil pollution, and the process adopts 4-8% of sodium hydroxide solution to regenerate anion resin, a large amount of waste alkali liquid is discharged into a sewage treatment system of a factory, and the impact on the sewage treatment system is larger.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an amine liquid purifies sled dress system, its pollution that can reduce greasy dirt, coloured macromolecule and metal cation in the amine liquid, sewage treatment system is arranged to the waste acid liquid and waste alkali lye neutralization back, has not only practiced thrift sewage treatment's expense, has still reduced sewage to treatment system's impact.
The embodiment of the utility model is realized like this:
the utility model provides an amine liquid purifies sled dress system, includes leather glued fiber filter, activated carbon filter, edulcoration filter, chelate resin exchanger, anion resin exchanger, the amine liquid output of leather glued fiber filter is connected to activated carbon filter's amine liquid input, activated carbon filter's amine liquid output is connected to the amine liquid input of edulcoration filter, the amine liquid output of edulcoration filter is connected to chelate resin exchanger's input, chelate resin exchanger's output is connected to anion resin exchanger's input.
In a preferred embodiment of the present invention, the amine liquid purifying skid-mounted system further comprises an acid liquid pump and an alkaline liquid pump, the chelate resin exchanger is provided with an acid liquid input end, and the regenerated acid liquid enters the chelate resin exchanger through the acid liquid pump; the anion resin exchanger is also provided with an alkali liquor input end, and regenerated alkali liquor enters the anion resin exchanger through an alkali liquor pump.
In a preferred embodiment of the present invention, the amine liquid purifying skid-mounted system further comprises a compressed air pipeline, and the compressed air input ends of the leather rubber fiber filter, the chelating resin exchanger and the anion resin exchanger are respectively connected to the compressed air pipeline.
In a preferred embodiment of the present invention, the amine liquid purifying skid-mounted system further comprises a desalted water pipeline, and the desalted water input end of the chelate resin exchanger is connected to the desalted water pipeline.
In a preferred embodiment of the present invention, the above-mentioned amine liquid purifying skid-mounted system further comprises a waste water pipeline, and the waste water output end of the chelating resin exchanger and the anion resin exchanger is connected to the waste water pipeline.
In the preferred embodiment of the present invention, the wastewater pipeline comprises a neutralization buffer tank and a wastewater treatment tank, each wastewater output end is connected to the neutralization buffer tank, and the neutralization buffer tank is connected to the wastewater treatment tank.
In a preferred embodiment of the present invention, the anion resin exchanger is provided with an amine liquid output end, and the amine liquid output end is connected to an underground tank.
The embodiment of the utility model provides a beneficial effect is: the utility model provides an amine liquid purifies sled dress system, with the activated carbon filter, chelate resin exchanger and anion resin exchanger are the center, combine submicron edulcoration filter and leather glue fiber filter to assist simultaneously, it can increase leather glue fiber and special activated carbon respectively on ordinary anion exchange technology purifies amine liquid and adsorb greasy dirt and colored macromolecule and adopt the chelate resin exchange to get rid of the metal cation in the amine liquid, reduce greasy dirt in the amine liquid, colored macromolecule and metal cation's pollution, chelate resin adopts the acidizing fluid regeneration simultaneously, anion resin adopts alkali lye regeneration, sewage treatment system is arranged to the acid-base neutralization back, sewage treatment's expense has not only been practiced thrift, sewage has still been reduced to treatment system's impact.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a diagram of an amine liquid purification skid-mounted system according to an embodiment of the present invention;
icon: 001-hide glue fiber filter; 002-activated carbon filter; 003-impurity removal filter; 004-chelating resin exchanger; 005-anion resin exchanger; 006-acid liquid pump; 007-lye pump.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
First embodiment
In the prior art, the amine desulphurization and decarbonization device generally has the problem of accumulation of heat stable salt in amine liquid, and when the content of the heat stable salt in the amine liquid is accumulated to a certain amount, a series of problems can be caused, such as darkening of color, increase of viscosity, foaming of solution, low acid gas load, enhancement of corrosivity of the amine liquid and the like.
Please refer to fig. 1, which includes a leather-rubber fiber filter 001, an activated carbon filter 002, an impurity removal filter 003, a chelate resin exchanger 004, and an anion resin exchanger 005, wherein an amine liquid output end of the leather-rubber fiber filter 001 is connected to an amine liquid input end of the activated carbon filter 002, an amine liquid output end of the activated carbon filter 002 is connected to an amine liquid input end of the impurity removal filter 003, an amine liquid output end of the impurity removal filter 003 is connected to an input end of the chelate resin exchanger 004, and an output end of the chelate resin exchanger 004 is connected to an input end of the anion resin exchanger 005.
More specifically, the amine liquid purification skid-mounted system in this embodiment further includes an acid liquid pump 006 and an alkaline liquid pump 007, the chelate resin exchanger 004 is provided with an acid liquid input end, and the regenerated acid liquid enters the chelate resin exchanger 004 through the acid liquid pump 006; the anion resin exchanger 005 is also provided with an alkali liquor input end, and regenerated alkali liquor enters the anion resin exchanger 005 through the alkali liquor pump 007. The hide glue fiber filter 001, the chelating resin exchanger 004 and the anion resin exchanger 005 are also provided with a compressed air input. The chelating resin exchanger 004 is also provided with a desalted water input end.
More specifically, both the chelate resin exchanger 004 and the anion resin exchanger 005 in the present embodiment are provided with wastewater output ends, each of which is connected to an acid-base neutralization buffer tank connected to a sewage treatment tank. The anion resin exchanger 005 is provided with an amine liquid output terminal connected to an underground tank.
The leather glue fiber filter 001 of the amine liquid purification skid-mounted system in the embodiment is a leather glue fiber adsorption tank, the activated carbon filter 002 is a special activated carbon adsorption tank, the impurity removal filter 003 adopts a precision mechanical filter, the chelate resin exchanger 004 is a chelate resin adsorption tank, the anion resin exchanger 005 is an anion exchange resin tank, and all the tank bodies are connected in sequence and all adopt an up-in-down mode. And is externally connected with a desalted water pipeline, an alkaline liquid pipeline, an acid liquid pipeline, an air pipeline, a purifying liquid pipeline and a waste liquid pipeline. The acid liquor pipeline is connected with the chelating resin tank, the alkaline liquor pipeline is connected with the anion exchange resin tank, and the desalination water pipeline and the air pipeline are connected with the chelating resin tank and the anion exchange resin tank.
More specifically, the amine liquid purification skid-mounted method in this embodiment includes the following steps:
s1: purifying, namely removing oil stains, colored macromolecules, mechanical impurities, metal cations and acid anions in the amine solution sequentially through a leather-rubber fiber filter 001, an activated carbon filter 002, an impurity removal filter 003, a chelate resin exchanger 004 and an anion resin exchanger 005;
s2: after the recovery and purification steps are finished, all valves in front of the chelate resin exchanger 004 are closed, compressed air is injected into the chelate resin exchanger 004 and the anion resin exchanger 005, and then desalted water is used for soaking and recovery;
s3: regenerating resin, namely opening exhaust valves at the tops of the chelate resin exchanger 004 and the anion resin exchanger 005, respectively injecting regenerated acid liquid into the chelate resin exchanger 004, injecting regenerated alkali liquid into the anion resin exchanger 005, and cleaning the resin by using desalted water after treatment;
s4: repeating S1-S3.
More specifically, S1 in this embodiment specifically operates as follows:
s11: amine liquid enters from an amine liquid input end of the leather-rubber fiber filter 001, and a small amount of oil stains dissolved in the amine liquid are removed by adsorption; the amine liquid passes through an adsorption tank made of the collagen fibers, oil stains in the amine liquid are adsorbed, and the collagen fibers are non-polar adsorbed, so that the amine liquid can be swept by air and recycled, and the cost is low;
s12: the amine liquid without oil stain enters an active carbon filter 002 to remove colored macromolecules in the amine liquid; the activated carbon in the activated carbon filter 002 is prepared by loading wood particle activated carbon with a catalyst and calcining at high temperature; more specifically, under the protection of inert gas, activated carbon is loaded with metal nickel and metal palladium or oxides thereof at a high temperature of 400-600 ℃ and calcined at a high temperature, so that colored macromolecules in amine liquid can be effectively removed;
s13: the amine liquid without colored macromolecules enters an impurity removal filter 003, the impurity removal filter 003 is used for precisely filtering and removing mechanical impurities in the amine liquid through a high-precision precise impurity removal filter 003, and the filtering precision of the impurity removal filter 003 is 0.1 mu m;
s14: the amine solution without mechanical impurities enters a chelating resin exchanger 004 to remove metal cation pollution in the amine solution, wherein the cation pollution comprises iron ions, copper ions, calcium ions and the like;
s15: the amine solution without metal cation pollution enters an anion resin exchanger 005 to remove acid anions in the amine solution.
In the process of using the amine liquid purification device, when resin needs to be regenerated, part of the amine liquid is adhered to the resin and remains in the resin tank, and in order to recover the part of the amine liquid, the most commonly adopted method is to rinse and recover the amine liquid by desalted water. This results in a large amount of desalted water entering the amine system, not only reducing the amine liquor concentration, but also requiring a large investment cost to concentrate. The utility model discloses a compressed air pressurization is retrieved and desalinized water soaks recovery process, has not only reduced the bringing volume of desalinized water to once soak the rate of recovery and reach 92%. The implementation steps are as follows:
s21: pressurizing and recovering, closing all valves in front of the chelate resin exchanger 004 after S1 is finished, opening compressed air, enabling the compressed air to enter the anion resin exchanger 005 through the chelate resin exchanger 004, closing a compressed air input end of the chelate resin exchanger 004 when the pressure value in the anion resin exchanger 005 reaches a set value of 300Kpa, and opening an amine liquid output end of the anion resin exchanger 005 to discharge amine liquid;
s22: performing secondary pressurization recovery, closing an amine liquid output end when the pressure in the chelate resin exchanger 004 is lower than a set value of 30Kpa, repeating S21, opening compressed air, pressurizing and discharging;
s23: soaking and recovering desalted water, and when the pressure in the chelate resin exchanger 004 is lower than a set value of 30Kpa, closing the amine liquid output end of the chelate resin exchanger 004 to ensure that the desalted water only enters the chelate resin exchanger 004; closing the inlet valve of the desalted water when the inlet water of the desalted water just exceeds the resin, and soaking for 5 min; then injecting compressed air into the chelate resin exchanger 004; when the pressure value in the chelate resin exchanger 004 reaches 300Kpa, the compressed air is closed, the amine liquid output end of the chelate resin exchanger 004 is opened, and desalted water enters the anion resin exchanger 005;
s24: soaking the desalted water in the anion resin exchanger 005 for 5min, and injecting compressed air into the anion resin exchanger 005; when the pressure value in the anion resin exchanger 005 reaches 300kpa, the compressed air is closed; and opening the amine liquid output end of the anion resin exchanger 005 to output the amine liquid, closing all valves after the pressure of the anion resin exchanger 005 is lower than 30Kpa, and finishing the amine liquid purification and recovery step.
More specifically, the specific operation of S3 in this embodiment is as follows:
s31: feeding a regeneration liquid: opening exhaust valves at the tops of the chelate resin exchanger 004 and the anion resin exchanger 005, opening an acid liquid pump 006 and an alkali liquid pump 007, respectively injecting regenerated acid liquid and regenerated alkali liquid into the chelate resin exchanger 004 and the anion resin exchanger 005, wherein the regenerated acid liquid and the regenerated alkali liquid both submerge the resins in the chelate resin exchanger 004 and the anion resin exchanger 005, then respectively opening wastewater output ends in the chelate resin exchanger 004 and the anion resin exchanger 005, and the waste acid and the waste alkali liquid flow into an external neutralization buffer tank and then are discharged into a sewage treatment tank;
s32: purging with alkali liquor, closing valves of all the chelating resin exchangers 004 and the anion resin exchanger 005 after the regeneration liquid enters, and pressurizing and purging the regeneration liquid;
s33: cleaning, namely soaking and cleaning the resin by using desalted water;
s34: the resin is washed by soaking with desalted water repeatedly.
Repeating the steps, and entering the next period after one period of amine liquid purification is finished.
In conclusion, in the embodiment, based on the common anion exchange process for purifying the amine liquid, the leather collagen fibers and the special activated carbon are added for absorbing the oil stain, and the chelating resin is used for absorbing the metal cations in the amine liquid, so that the pollution of the oil stain, the colored macromolecules and the metal cations in the amine liquid is reduced, meanwhile, the chelating resin is regenerated by the acid solution, the anion resin is regenerated by the alkali solution, and the acid and the alkali are neutralized and then discharged to the sewage treatment system, so that the sewage treatment cost is saved, and the impact of the sewage on the treatment system is also reduced.
This description describes examples of embodiments of the invention, and is not intended to illustrate and describe all possible forms of the invention. It should be understood that the embodiments described in this specification can be implemented in many alternative forms. The figures are not necessarily to scale; some features may be exaggerated or minimized to show details of particular components. Specific structural and functional details disclosed are not to be interpreted as limiting, but merely as a representative basis for teaching one skilled in the art to variously employ the present invention. It will be appreciated by persons skilled in the art that a plurality of features illustrated and described with reference to any one of the figures may be combined with features illustrated in one or more other figures to form embodiments which are not explicitly illustrated or described. The described combination of features provides a representative embodiment for a typical application. However, various combinations and modifications of the features consistent with the teachings of the present invention may be used as desired for particular applications or implementations.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The utility model provides an amine liquid purifies sled dress system, its characterized in that, includes leather glued fiber filter, activated carbon filter, edulcoration filter, chelating resin exchanger, anion resin exchanger, the amine liquid output of leather glued fiber filter is connected to activated carbon filter's amine liquid input, activated carbon filter's amine liquid output is connected to edulcoration filter's amine liquid input, edulcoration filter's amine liquid output is connected to chelating resin exchanger's input, chelating resin exchanger's output is connected to anion resin exchanger's input.
2. The amine liquid purification skid-mounted system according to claim 1, further comprising an acid liquid pump and an alkali liquid pump, wherein the chelating resin exchanger is provided with an acid liquid input end, and the regenerated acid liquid enters the chelating resin exchanger through the acid liquid pump; and the anion resin exchanger is also provided with an alkali liquor input end, and regenerated alkali liquor enters the anion resin exchanger through the alkali liquor pump.
3. The amine liquid purification skid of claim 1, further comprising a compressed air line, wherein the compressed air inputs of the hide glue fiber filter, the chelating resin exchanger, and the anion resin exchanger are connected to the compressed air line, respectively.
4. The amine liquid purification skid of claim 1, further comprising a desalination water line to which the desalinated water input of the chelating resin exchanger is connected.
5. The amine liquid purification skid of claim 1, further comprising a waste water line to which waste water outputs of the chelating resin exchanger and the anion resin exchanger are connected.
6. The amine liquid purification skid system of claim 5, wherein the wastewater line comprises a neutralization surge tank and a wastewater treatment basin, each of the wastewater outputs is connected to the neutralization surge tank, and the neutralization surge tank is connected to the wastewater treatment basin.
7. The amine liquid purification skid system of claim 1, wherein the anion resin exchanger is provided with an amine liquid output, the amine liquid output being connected to an underground tank.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111056671A (en) * | 2020-01-17 | 2020-04-24 | 成都能净科技有限公司 | Amine liquid purification skid-mounted system and method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111056671A (en) * | 2020-01-17 | 2020-04-24 | 成都能净科技有限公司 | Amine liquid purification skid-mounted system and method thereof |
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