CN208594054U - A kind of poor amine liquid device of hybrid resin bed purification - Google Patents
A kind of poor amine liquid device of hybrid resin bed purification Download PDFInfo
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- CN208594054U CN208594054U CN201821041029.4U CN201821041029U CN208594054U CN 208594054 U CN208594054 U CN 208594054U CN 201821041029 U CN201821041029 U CN 201821041029U CN 208594054 U CN208594054 U CN 208594054U
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- resin bed
- hybrid resin
- amine liquid
- poor amine
- filter
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Abstract
The utility model discloses the devices that a kind of hybrid resin bed purifies poor amine liquid, it include: hybrid resin bed, circulating pump, cartridge filter and self-cleaning filter, the hybrid resin bed is divided into upper, middle and lower three parts, lower layer is connected with cartridge filter by pipeline by circulating pump, the middle layer that bypass line is connected to resin bed is added on the pipeline of circulating pump and cartridge filter, self-cleaning filter is connected with the upper layer of hybrid resin bed by pipeline.The hybrid resin bed purifies the device of poor amine liquid, has many advantages, such as that the grease stain in the poor amine liquid of absorption, high efficiency remove the anion salt in poor amine liquid, regeneration lye dosage is reduced, the oil removing desalination decontamination cycle that can be realized poor amine liquid utilizes.
Description
Technical field
The utility model patent belongs to resin desalination field of purification, in particular to a kind of hybrid resin bed purifies poor amine liquid dress
It sets.
Background technique
With the increase of domestic sulfur crude processing amount and the increase of residual oil mixed refining ratio, produced in oil refining apparatus production process
Hydrogen sulfide content in the products such as raw dry gas and liquefied gas also increases with it, and constitutes great threat to environmental protection.For
It keeps the sustainable development of petroleum chemical enterprise and adapts to the requirement of increasingly strict national environmental standard, amine liquid desulfurizer is de-
The importance of vulcanisation hydrogen is particularly important.Containing H at present2S、CO2In equal acidic gas desulfurizations, N methyldiethanol amine
(CH3- N=(CH2CH2OH)2, abbreviation MDEA), because it has good selective desulfurization characteristic, low corrosivity and low absorption
The advantages that reaction heat, becomes a kind of sulfur removal technology that oil refining apparatus generallys use.
Industrially since the periodicity of amine aqueous solution uses, easily cause the pollution particle such as decomposition, oxidation, coke powder of amine liquid miscellaneous
Matter leads to amine absorption reduced performance.It can be decomposed in the salt that hydramine generates in conjunction with the sour gas of absorption through high-temperature process,
Hydramine is regenerated.But some inorganic and organic anions and amino acid ion etc. in alkanolamine solution, they and hydramine knot
Conjunction forms alcohol amine salt, these salt remove not fall during high temperature regeneration, thus referred to as thermal-stable salt (heat stable
Salts, abbreviation HSS).The wherein source of heat stable salt anion see the table below shown.
Learn that HSS anion is main according to upper table are as follows: formate, acetate, oxalate, chloride ion, sulfate radical, thiocyanic acid
Root and thiosulfate anion etc..In order to reduce the harm caused by amine absorption method such as impurity, catabolite, filtered frequently with folding
The technologies such as core, the precipitation method, the absorption of resin anion (R.A.) bed.
But common foldable filter element pore size filter is small, easy generations blocking, just needs within general 2-3 months artificial frequently to replace
Filter core, it is most important that virose hydrogen sulfide gas can be remained in poor amine liquid, there are hidden danger to personal safety；The precipitation method, yin
Ion exchange resin bed absorbs and filter technology, needs additional plurality of inorganic salt, needs more acid regenerations, generates more with high salt, high
COD waste water may cause to impact to the biochemical system of sewage treatment plant, the final water quality indicator for influencing externally discharged waste water.
Summary of the invention
In view of the deficiencies of the prior art, the utility model provides the device that a kind of hybrid resin bed purifies poor amine liquid, has
Adsorb the grease stain in poor amine liquid, the advantages that high efficiency removes anion salt in poor amine liquid, regeneration lye dosage is reduced, Neng Goushi
The oil removing desalination decontamination cycle of existing poor amine liquid utilizes.
To realize goal of the invention, the invention adopts the following technical scheme:
A kind of hybrid resin bed purifies the device of poor amine liquid, comprising: hybrid resin bed, circulating pump, cartridge filter and from
Filter is cleaned, the hybrid resin bed is divided into upper, middle and lower, and lower part passes through pipe by circulating pump and cartridge filter
Road is connected, and the middle part that bypass line is connected to resin bed, self-cleaning are added on the pipeline of circulating pump and cartridge filter
Filter is connected with the top of hybrid resin bed by pipeline.
Preferably, the macroporous absorbent resin of the top filling 20% of hybrid resin bed；The gel of middle part filling about 30%
Weak base resin；Under-filled about 50% gel strong alkali resin.
Preferably, the middle part of the hybrid resin bed is equipped with resin regeneration agent dispensing port, lower part is equipped with resin regeneration
Agent regeneration liquid waste outlet mouth.
Preferably, the inlet pipeline of the self-cleaning filter is the poor amine liquid pipe line of pollution.
Preferably, the aperture of self-cleaning filter is 5um；The aperture of cartridge filter is 1 micron.
The workflow that the hybrid resin bed of the utility model purifies poor amine liquid device is poor amine of the poor amine liquid by pollution
Liquid pipe line enters back into the top of hybrid resin bed by the self-cleaning filter in the aperture 5um, and circulating pump is transported in 0.1-0.4Mpa
Row, by 1 micron of the cartridge filter in aperture, clean poor amine liquid carries out reuse after retention filtering.When the tree of hybrid resin tank
After rouge saturation, using resin regeneration agent, i.e. the sodium hydroxide of 1%-4% regenerates, and regenerated waste liquid is discharged by sewage draining exit.It is described
Hybrid resin bed purify poor amine liquid device, core apparatus is hybrid resin bed, the macroporous absorption tree of upper part filling about 20%
Rouge is constituted using a kind of resin without cation exchange groups, with macroreticular structure, bigger serface, is first realized to poor amine
The grease stains such as hydro carbons, surface-active substance in liquid are adsorbed, and the foaming of amine liquid is reduced；The gel weak base tree of middle part filling about 30%
Rouge utilizes weak-base anion-exchange resin, removes poor amine liquid middle strong acidity anion such as sulfate radical, chlorine root plasma, put
In the upper surface of strong base negative resin, the pollution of postposition strong base negative resin is reduced；Under-filled about 50% gel strong alkali resin, into one
Step removes strong acid radical anion and silicate, oxalate, acetate in weak acid radical anion, such as poor amine liquid.This is practical new
A kind of hybrid resin bed of type purifies the device of poor amine liquid compared with tradition is single using desalination resin container, has and adsorbs in poor amine liquid
Grease stain, the advantages that high efficiency removes anion salt in poor amine liquid, regeneration lye dosage is reduced.
Detailed description of the invention
Fig. 1 is the structural schematic diagram that a kind of hybrid resin bed of the utility model purifies the device of poor amine liquid.
Specific embodiment
The present invention will be further described with reference to the accompanying drawing.
A kind of hybrid resin bed as shown in Figure 1 purifies the device of poor amine liquid, comprising: hybrid resin bed 1, is protected circulating pump 2
Pacify filter 3 and self-cleaning filter 4, the hybrid resin bed is divided into upper, middle and lower, lower part by circulating pump 2 with
Cartridge filter 3 is connected by pipeline, is added bypass line on the pipeline of circulating pump 2 and cartridge filter 3 and is connected to conjunction
The middle part of resin bed 1, self-cleaning filter 4 are connected with the top of hybrid resin bed 1 by pipeline.
The macroporous absorbent resin of the top filling 20% of the hybrid resin bed；The gel weak base of middle part filling about 30%
Resin；Under-filled about 50% gel strong alkali resin.
The middle part of the hybrid resin bed is equipped with resin regeneration agent dispensing port 5, and lower part is equipped with resin regeneration agent regenerated
Liquid outlet mouth 6.
The inlet pipeline of the self-cleaning filter is the poor amine liquid pipe line 7 of pollution, and cartridge filter outlet conduit is
Clean poor amine liquid pipe line 8.
The aperture of self-cleaning filter is 5um；The aperture of cartridge filter is 1 micron.
Case 1
The poor alkanolamine solution in about 300 tons of Shandong petro-chemical corporation sulphur workshop is mixed by two sets of poor amine liquid of sulfur recovery facility
Progress is unified.As amine liquid heat stable salts content increases, the enhancing of amine liquid solvent corrosion, the especially grass of amine liquid degradation generation
The components such as hydrochlorate, acetate, formates, chloride have a direct impact apparatus corrosion, and chloride ion etc. is easy to and carbon steel table
The ferrous sulfide protective layer in face reacts, and generates deliquescent complex compound, protective layer is stripped and is destroyed, carbon steel equipment pipeline
Inner wall gradually corrodes and is thinned, and this also increases the security risks of equipment.Solid suspension content in amine liquid is higher, a part
The insoluble matter generated from the degradation of amine liquid, a part wash away the particulate matter (such as ferrous sulfide) of generation from corrosion of piping.
Suspended particulate substance will affect the stability of solvent foaming to a certain extent, and amine liquid is easily caused to foam when contacting with high-speed flow,
Keep the cleaning of amine liquid solvent that can be effectively improved the foaming tendencies of amine liquid.
Analyze after testing, the heat stable salts content in poor amine liquid system be 5.24%, 164 ppm of suspension content,
Middle corrosive chloride content is 1104ppm；Appearance amine liquid is in bronzing, muddiness.According to middle petrochemical industry general headquarters about oil refining process
It is explicitly pointed out in anticorrosion administrative provisions detailed rules for the implementation, amine liquid heat stable salts content is no more than 1%, using this hybrid resin bed
After purifying poor amine liquid, effect is as shown in the table:
| Poor MDEA amine liquid | Heat stable salts (%) | Chloride ion ppm | Suspended matter (mg/L) |
| Before purification | 5.24 | 1104 | 164 |
| After purification | 0.8 | 230 | 27 |
Case 2
Shijiazhuang combined workshop, petro-chemical corporation, the existing 200m of production system3Poor amine liquid, analyze after testing, poor amine
Heat stable salts content in liquid system is 4.2%, suspension content 204ppm, and wherein corrosive chloride content is 1309ppm；
Appearance amine liquid is in dark brown, muddiness.According to middle petrochemical industry general headquarters about clear in oil refining process anticorrosion administrative provisions detailed rules for the implementation
It points out, amine liquid heat stable salts content is no more than 1%, after purifying poor amine liquid using this hybrid resin bed, effect such as following table institute
Show:
| Poor MDEA amine liquid | Heat stable salts (%) | Chloride ion ppm | Suspended matter (mg/L) |
| Before purification | 4.2 | 1309 | 204 |
| After purification | 0.9 | 131 | 22 |
The foregoing is merely this practical embodiments, are not intended to limit the scope of the invention, all to utilize this hair
Equivalent structure or equivalent flow shift made by bright description is applied directly or indirectly in other relevant technology necks
Domain similarly includes in this practical scope of patent protection.
Claims (5)
1. the device that a kind of hybrid resin bed purifies poor amine liquid, characterized by comprising: hybrid resin bed, was ensured public security at circulating pump
Filter and self-cleaning filter, the hybrid resin bed are divided into upper, middle and lower, and lower part is filtered by circulating pump and security personnel
Device is connected by pipeline, is added bypass line on the pipeline of circulating pump and cartridge filter and is connected in resin bed
Portion, self-cleaning filter are connected with the top of hybrid resin bed by pipeline.
2. the device that hybrid resin bed according to claim 1 purifies poor amine liquid, it is characterised in that hybrid resin bed it is upper
The macroporous absorbent resin of portion's filling 20%；The gel weak base resin of middle part filling about 30%；Under-filled about 50% gel is strong
Alkali resin.
3. the device that hybrid resin bed according to claim 1 purifies poor amine liquid, it is characterised in that the self-cleaning
The inlet pipeline of filter is the poor amine liquid pipe line of pollution.
4. the device that hybrid resin bed according to claim 1 purifies poor amine liquid, it is characterised in that the self-cleaning filtering
The aperture of device is 5um；The aperture of cartridge filter is 1 micron.
5. the device that hybrid resin bed according to claim 1 purifies poor amine liquid, it is characterised in that the hybrid resin
The middle part of bed is equipped with resin regeneration agent dispensing port, and lower part is equipped with resin regeneration agent regeneration liquid waste outlet mouth.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821041029.4U CN208594054U (en) | 2018-07-03 | 2018-07-03 | A kind of poor amine liquid device of hybrid resin bed purification |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201821041029.4U CN208594054U (en) | 2018-07-03 | 2018-07-03 | A kind of poor amine liquid device of hybrid resin bed purification |
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| CN208594054U true CN208594054U (en) | 2019-03-12 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113262825A (en) * | 2021-04-25 | 2021-08-17 | 杭州多能信息技术有限公司 | Resin bed for purifying amine liquid |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113262825A (en) * | 2021-04-25 | 2021-08-17 | 杭州多能信息技术有限公司 | Resin bed for purifying amine liquid |
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| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230726 Address after: 311121 North 2nd Floor, Building 1, No. 16, Longtan Road, Cangqian Street, Yuhang District, Zhejiang Province Patentee after: ZHEJIANG HINEW ENVIRONMENTAL TECHNOLOGY Co.,Ltd. Address before: 313112 Changxing County Huzhou town industrial concentration area, Huzhou, Zhejiang Patentee before: ZHEJIANG HAINIU ENVIRONMENTAL PROTECTION EQUIPMENT Co.,Ltd. |