CN106221806A - Environment-friendly highly efficient ferrous sulfide deactivation agent and preparation method thereof - Google Patents
Environment-friendly highly efficient ferrous sulfide deactivation agent and preparation method thereof Download PDFInfo
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- CN106221806A CN106221806A CN201610712970.3A CN201610712970A CN106221806A CN 106221806 A CN106221806 A CN 106221806A CN 201610712970 A CN201610712970 A CN 201610712970A CN 106221806 A CN106221806 A CN 106221806A
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G75/00—Inhibiting corrosion or fouling in apparatus for treatment or conversion of hydrocarbon oils, in general
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Abstract
A kind of environment-friendly highly efficient ferrous sulfide deactivation agent, count by weight, including fatty aldehyde 4 parts, disodiumedetate 3.5 parts, sodium carbonate 1.3 parts, amine oxide 3.5 parts, polyoxyethylenated alcohol sodium sulfate 1.6 parts, dodecylbenzene sodium sulfonate 1.4 parts, edible essence 1.5 parts, itaconic acid copolymer 2.6 parts, polyquaternary ammonium salt 1.6 parts, corrosion inhibiter 1.4 parts, 83 parts of water.It is in hgher efficiency, more thorough that it removes Iron sulfuret., and the pernicious foul smell such as hydrogen sulfide, ammonia nitrogen can also be removed at the same time, it addition, it is without the heavy metal ion such as manganese, chromium, chloride ion and other poisonous and harmful elements, and biodegradability is strong, environmentally safe, will not produce poisonous, the harmful gass such as hydrogen sulfide in work progress, it is to avoid injury and the environmental pollution to the person, without compromising on equipment, the most effectively prevent Iron sulfuret. spontaneous combustion and remove hydrogen sulfide.
Description
Technical field
The present invention relates to Field of Fine Chemicals, particularly to a kind of environment-friendly highly efficient ferrous sulfide deactivation agent and preparation thereof
Method.
Background technology
In oil refining process, the fe element in line equipment is generally to exist so that each in Crude Oil Processing
Plant active sulfur to react with fe element generation sequence of chemical, finally there is large space, low flow velocity with the form collection of Iron sulfuret.
Tower, in container.This rule is typically followed in FeS distribution in process equipment: in medium, sulfur content is the highest, and its FeS corrodes
Product is the most, but in medium, the equipment of sulfur content only a few millionths also can occur the phenomenon of FeS spontaneous combustion when opening.Its
Reason is not that in medium, sulfur content is high, but fine FeS corrosion product constantly can shift toward downstream from upstream with material,
A certain relatively lower speed region, constantly assembles deposition and gets off.For tower, in device, material flow is low, Iron sulfuret.
Corrosion product be easy to deposit particularly packed tower at some regional area, its filler is except having the function of fractional distillation
Outward. also having efficient filtering function, the Iron sulfuret. that upstream is carried is easy to be blocked.Meanwhile, metal packing tool
There is bigger specific surface area, big, even if the sulfur content in material is the lowest also can corrode filler with the contact area of material.Owing to filling out
Material flow in material tower is low, and the Iron sulfuret. that filling surface corrosion generates is difficult to be taken away by material.So, in big load, length
The packed tower that cycle, multicycle are run continuously, will gather a certain amount of Iron sulfuret. in tower.
During maintenance etc. is stopped work, these Iron sulfuret .s and the oxygen generation heat-producing chemical reaction in air, releasing
Heat does not has the approach that can discharge in time and transmit will produce high temperature and damage equipment.Especially in filler, tower tray etc.
In tower that component is many, container, the burden of Iron sulfuret. is big, and Iron sulfuret. incidents of spontaneous combustion easily occurs.
How to prevent Iron sulfuret. spontaneous combustion, prevent hydrogen sulfide odor pollution, it is ensured that personnel during refinery turnaround of unit,
The safety of equipment is extremely important.Accordingly, it would be desirable to the technical problem solved is to provide a kind of environmental protection, efficient
Iron sulfuret. can be played passivation by ferrous sulfide deactivation agent rapidly, is effectively prevented Iron sulfuret. spontaneous combustion, simultaneously to sulfur
Change the malodorants such as hydrogen and there is the passivator of preferable cleaning action.
Summary of the invention
It is an object of the invention to provide a kind of environment-friendly highly efficient ferrous sulfide deactivation agent, this passivator has collection oxygen simultaneously
Change, flocculate, precipitate, sterilizing, sterilization, deodorization, the feature such as anticorrosion, significantly increase safety when equipment runs, increase
The economic well-being of workers and staff of enterprise.
The above-mentioned purpose of the present invention has the technical scheme that a kind of environment-friendly highly efficient Iron sulfuret. is blunt
Agent, counts by weight, including fatty aldehyde 3～5 parts, disodiumedetate 2～5 parts, sodium carbonate 0.5～2 parts, oxidation
Amine 2～5 parts, polyoxyethylenated alcohol sodium sulfate 1～2 parts, dodecylbenzene sodium sulfonate 1～2 parts, edible essence 1～2 parts,
Itaconic acid copolymer 2～3 parts, polyquaternary ammonium salt 1～2 parts, corrosion inhibiter 1～2 parts, water 77～89 parts.
As preferably, count by weight, including fatty aldehyde 4 parts, disodiumedetate 3.5 parts, sodium carbonate 1.3
Part, amine oxide 3.5 parts, polyoxyethylenated alcohol sodium sulfate 1.6 parts, dodecylbenzene sodium sulfonate 1.4 parts, edible essence
1.5 parts, itaconic acid copolymer 2.6 parts, polyquaternary ammonium salt 1.6 parts, corrosion inhibiter 1.4 parts, 83 parts of water.
Disodiumedetate is a kind of efficient chelating agen, when being attached with the device of Iron sulfuret. in cleaning, second
Edetate disodium can be with ferrous iron generation complexation, such that it is able to avoid Iron sulfuret. directly and air contact and spontaneous combustion.From
And, also improve the efficiency removing Iron sulfuret. simultaneously.
It addition, disodiumedetate is also a kind of antioxidant synergist, it can also be to relevant during deodorization
The wall of device plays antioxidative effect, thus also is able to extend the service life of relevant apparatus.
Amine oxide is a kind of weak cation type amphoteric surfactant, aqueous solution in acid condition in cationic,
In nonionic in alkalescence condition.There is good thickening and antistatic, softness, foam enhancing, steady bubble and detergency ability；Also have and kill
Bacterium, lime soap dispersing power, and biological degradability are good.
And polyoxyethylenated alcohol sodium sulfate has excellent decontamination, emulsifying, foam performance and hard water resistance performance, so
Passivator is when cleaning the Iron sulfuret. in relevant apparatus, and passivator will not be cleaned by because of having calcium, magnesium ion and make blunt
Agent hardness becomes big, in turn results in the problem that passivator lost efficacy, and its biodegradability is good.
Dodecylbenzene sodium sulfonate is exactly a kind of surfactant originally, and it can effectively be removed and be attached to relevant apparatus
Iron sulfuret. on wall and other sulfide, and it additionally aids the dispersion of other materials.Simultaneously as dodecyl
The dirt-removing power of benzene sulfonic acid sodium salt can increase along with hardness of water and reduce, and polyoxyethylenated alcohol sodium sulfate just eliminates
The problem of hard water, thus ensure dodecylbenzene sodium sulfonate potent ground clean effect.
And itaconic acid copolymer has efficient dispersibility and scale-inhibiting properties so that sulfur-containing compound and nitrogenous chemical combination
Thing is difficult at device wall area dirt, thus effectively further improves the effect of deodorization, and itaconic acid copolymer has very
Strong biodegradability, will not pollute soil and water source so entering in environment.
Furthermore the addition of edible essence is the foul odour such as remaining hydrogen sulfide and nitrogen ammonia after can either hiding cleaning, makes behaviour
Making and testing staff does not feels as discomfort, meanwhile, environment structure also will not be polluted by edible essence.
As preferably, described fatty aldehyde is Aldehyde C-11 MOA, methyl nonyl acetaldehyde and 7-hydroxyl-3, in 7-dimethyl octanal
The mixing of one or more.
These fatty aldehydes all have certain fragrance, it is possible to the stink in removing device so that Operation and maintenance personnel are not
Can not feel well.
As preferably, described itaconic acid copolymer is itaconic acid-sodium allylsulfonate-sodium hypophosphite copolymer and clothing health
The mixture of acid-ethyl acrylate-acrylic acid copolymer.
As preferably, itaconic acid-sodium allylsulfonate-sodium hypophosphite copolymer and itaconic acid-propenoic acid ethylacrylate-acrylic acid
The weight ratio of copolymer is 1:1～2.
Itaconic acid-sodium allylsulfonate-sodium hypophosphite copolymer and itaconic acid-propenoic acid ethylacrylate-acrylic acid copolymer pair
Calcium carbonate and calcium phosphate are respectively provided with the strongest scale prevention ability, such that it is able to the loss of fluid dynamic energy in avoiding device, and this two
Plant raw material and be respectively provided with the protection of good biodegradability, beneficially environment, also have and be just their ability to the wall of device is risen
To corrosion inhibition, extend the service life of device.
As preferably, described corrosion inhibiter is the mixture of lignosulfonate, poly-aspartate and tallow amine.
As preferably, the weight ratio of lignosulfonate, poly-aspartate and tallow amine is 1:1～2:1～2.
And the Main Function of poly-aspartate is scale inhibition and/or dispersion, have corrosion inhibition concurrently.As antisludging agent, the suitableeest
Shape together in calcium carbonate scale, calcium sulfate scale, barium sulfate scale and calcium phosphate scale in suppression cooling water, boiler water and reverse-osmosis treated
Become.To the scale inhibition performance of calcium carbonate up to 100%.Meanwhile, it has peptizaiton and can effectively prevent the corrosion of hardware.And
And poly-aspartate carries out compounding use with itaconic acid-propenoic acid ethylacrylate-acrylic acid copolymer and has more efficient and multi-functional
Corrosion-mitigation scale-inhibition effect.
And tallow amine is during using, its molecule is adsorbed on metal surface with hydrophilic group (such as, amino), is formed
One layer of fine and close hydrophobic film, while protection metal surface is not by aqueous corrosion, also avoids absorption sulfuration on device wall
Ferrous iron directly carries out contacting with air and spontaneous combustion occurs, thus is effectively improved the efficiency of ferrous sulfide deactivation.
Above-mentioned corrosion inhibiter is respectively provided with biodegradable ability, so being conducive to improving the protective effect of environment.
As preferably, described polyquaternary ammonium salt is dimethyl diallyl ammonium chloride-acrylamide copolymer, poly dimethyl two
One or both in allyl ammonium chloride.
These quaternary ammonium salts not only have good flocculating sedimentation effect, and meanwhile, they also have the strongest bactericidal action, this
Sample can also remove and stink produced by biological decomposition.
The preparation method of a kind of environment-friendly highly efficient ferrous sulfide deactivation agent, comprises the following steps:
S1, by predetermined weight number by polyoxyethylenated alcohol sodium sulfate, fatty aldehyde, amine oxide, itaconic acid copolymer and water
It is slowly added in blender, opens blender, record mixing time, from opening blender to fatty alcohol-polyoxyethylene ether sulphuric acid
Sodium, fatty aldehyde, amine oxide and itaconic acid copolymer all feed intake end required time be 15～30 minutes；
Slowly put into dodecylbenzene sodium sulfonate and the sodium carbonate of predetermined weight number under S2, normal pressure, control maximum temperature
Less than 75 DEG C, when reaction temperature rises very fast, slowing down charging rate, until charging terminates, whole course of reaction is 15～25
Complete in minute；
Slowly put into the disodiumedetate of predetermined weight number under S3, normal pressure, control maximum temperature less than 70
DEG C, when reaction temperature rises very fast, slow down charging rate, until charging terminates, whole course of reaction is in 15～25 minutes
Complete；
S4, by predetermined weight number polyquaternary ammonium salt, corrosion inhibiter and edible essence slowly put into blender, open blender and enter
Row stirring, stops blender, and the examination and test of products is packed.
As preferably, S1 is first passed through nitrogen in blender, blender is carried out emptying process.
So can avoid during preparation, the oxygen in air directly contacts with material, causes material to be sent out
The matter that changes and ultimate failure.
The following is the technical parameter of passivator of the present invention
| Project | Index |
| Outward appearance | Colourless to weak yellow liquid |
| Density (20 DEG C of stock solution), g/cm3 | 1.00～1.06 |
| PH value (25 DEG C of stock solution) | 5.5～7.5 |
| Rate of corrosion (45 DEG C, 10% aqueous solution), g/m2·h ≤ | 2.0 |
| Washing oil rate (30 DEG C, 10% aqueous solution), % >= | 98.5 |
| Mn content, mg/L ＜ | 0.01 |
| Cr content, mg/L ＜ | 0.01 |
By above-mentioned parameter, the present invention has the strongest cleansing power, is suitable for most of petrochemical industry, the making of CDU
With.
In sum, the method have the advantages that
1. disodiumedetate is a kind of chelating agen, and it can be with ferrous ion generation complexation, such that it is able to avoid sulfuration
Ferrous directly with air contact and there is spontaneous combustion, and be also beneficial to improve removing Iron sulfuret., hydrogen sulfide and the efficiency of ammonia nitrogen,
Meanwhile, disodiumedetate is also beneficial to biodegradation, so will not be to environment；
2. impurity and complex can be played flocculation by polyquaternary ammonium salt, so that the dirt in device can be rapidly
Come off from wall, and then serve the effect of scale removal；
3. the tallow amine molecule in corrosion inhibiter is adsorbed on metal surface with hydrophilic group (such as, amino), formed one layer fine and close
Hydrophobic film, while protection metal surface is not by aqueous corrosion, also avoid absorption Iron sulfuret. on device wall directly with
Air carries out contacting and spontaneous combustion occurring, thus is effectively improved the efficiency of ferrous sulfide deactivation.
Accompanying drawing explanation
Fig. 1 is the preparation method flow chart of environment-friendly highly efficient ferrous sulfide deactivation agent.
Detailed description of the invention
Below in conjunction with accompanying drawing 1, the present invention is described in further detail.
Embodiment one:
Step one: be first passed through nitrogen in blender, blender carried out emptying process, by 1kg fatty alcohol-polyoxyethylene ether sulfur
Acid sodium, 1kg Aldehyde C-11 MOA, 2kg methyl nonyl acetaldehyde, 2kg amine oxide, 1kg itaconic acid copolymer are itaconic acid-propene sulfonic acid
Sodium-sodium hypophosphite copolymer, 1kg itaconic acid-propenoic acid ethylacrylate-acrylic acid copolymer and 89kg water are slowly added to blender
In, open blender, record mixing time, from opening blender to polyoxyethylenated alcohol sodium sulfate, Aldehyde C-11 MOA, first
Base nonyl acetaldehyde, amine oxide, itaconic acid-sodium allylsulfonate-sodium hypophosphite copolymer and itaconic acid-propenoic acid ethylacrylate-acrylic acid
Copolymer all feed intake end required time be 15～30 minutes；
Step 2: slowly put into 1kg dodecylbenzene sodium sulfonate and 0.5kg sodium carbonate under normal pressure, control maximum temperature little
In 75 DEG C, when reaction temperature rises very fast, slowing down charging rate, until charging terminates, whole course of reaction is at 15～25 points
Complete in clock；
Step 3: slowly put into 2kg disodiumedetate under normal pressure, control maximum temperature and be less than 70 DEG C, work as reaction
When temperature rises very fast, slowing down charging rate, until charging terminates, whole course of reaction completed in 15～25 minutes；
Step 4: 1kg dimethyl diallyl ammonium chloride-acrylamide copolymer, 0.3kg lignosulfonate, 0.3kg are gathered sky
Winter propylhomoserin, 0.4kg tallow amine and 1kg edible essence slowly put into blender, open blender and are stirred, stop stirring
Machine, the examination and test of products is packed.
Embodiment two:
Step one: be first passed through nitrogen in blender, blender carried out emptying process, by 2kg fatty alcohol-polyoxyethylene ether sulfur
Acid sodium, 1.7kg methyl nonyl acetaldehyde, 3.3kg7-hydroxyl-3,7-dimethyl octanal, 5kg amine oxide, 1kg itaconic acid-propene sulfonic acid
Sodium-sodium hypophosphite copolymer, 2kg itaconic acid-propenoic acid ethylacrylate-acrylic acid copolymer and 77kg water are slowly added to blender
In, open blender, record mixing time, from unlatching blender to polyoxyethylenated alcohol sodium sulfate, methyl nonyl acetaldehyde, 7-
Hydroxyl-3,7-dimethyl octanal, amine oxide, itaconic acid-sodium allylsulfonate-sodium hypophosphite copolymer and itaconic acid-propenoic acid
Ethylacrylate-acrylic acid copolymer all feed intake end required time be 15～30 minutes；
Step 2: slowly put into 2kg dodecylbenzene sodium sulfonate and 2kg sodium carbonate under normal pressure, control maximum temperature and be less than
75 DEG C, when reaction temperature rises very fast, slowing down charging rate, until charging terminates, whole course of reaction was at 15～25 minutes
Inside complete；
Step 3: slowly put into 5kg disodiumedetate under normal pressure, control maximum temperature and be less than 70 DEG C, work as reaction
When temperature rises very fast, slowing down charging rate, until charging terminates, whole course of reaction completed in 15～25 minutes；
Step 4: by 2kg PDDA, 0.4kg lignosulfonate, 0.8kg poly-aspartate, 0.8kg
Tallow amine and 2kg edible essence slowly put into blender, open blender and are stirred, stop blender, examination and test of products bag
Dress.
Embodiment three:
Step one: be first passed through nitrogen in blender, blender carried out emptying process, by 1.6kg fatty alcohol-polyoxyethylene ether
Sodium sulfate, 1kg Aldehyde C-11 MOA, 1kg methyl nonyl acetaldehyde, 2kg7-hydroxyl-3,7-dimethyl octanal, 3.5kg amine oxide,
1.04kg itaconic acid-sodium allylsulfonate-sodium hypophosphite copolymer, 1.56kg itaconic acid-propenoic acid ethylacrylate-acrylic acid copolymer
It is slowly added in blender with 83kg water, opens blender, record mixing time, from opening blender to aliphatic alcohol polyethenoxy
Ether sodium sulfate, Aldehyde C-11 MOA, methyl nonyl acetaldehyde, 7-hydroxyl-3,7-dimethyl octanal, amine oxide, itaconic acid-propene sulfonic acid
Sodium-sodium hypophosphite copolymer and itaconic acid-propenoic acid ethylacrylate-acrylic acid copolymer all feed intake end required time be 15
～30 minutes；
Step 2: slowly put into 1.4kg dodecylbenzene sodium sulfonate and 1.3kg sodium carbonate under normal pressure, control maximum temperature
Less than 75 DEG C, when reaction temperature rises very fast, slowing down charging rate, until charging terminates, whole course of reaction is 15～25
Complete in minute；
Step 3: slowly put into 3.5kg disodiumedetate under normal pressure, control maximum temperature and be less than 70 DEG C, when instead
When answering temperature to rise very fast, slowing down charging rate, until charging terminates, whole course of reaction completed in 15～25 minutes；
Step 4: by 1kg dimethyl diallyl ammonium chloride-acrylamide copolymer, 0.6kg poly dimethyl allyl chlorination
Ammonium, 0.35kg lignosulfonate, 0.52 poly-aspartate, 0.53 tallow amine and 1.5kg edible essence slowly put into blender,
Unlatching blender is stirred, and stops blender, and the examination and test of products is packed.
Embodiment four:
Step one: be first passed through nitrogen in blender, blender carried out emptying process, by 1kg fatty alcohol-polyoxyethylene ether sulfur
Acid sodium, 2kg Aldehyde C-11 MOA, 3kg methyl nonyl acetaldehyde, 3.5kg amine oxide, 1.5kg itaconic acid-sodium allylsulfonate-ortho phosphorous acid
Sodium copolymer, 1.5kg itaconic acid-propenoic acid ethylacrylate-acrylic acid copolymer and 83kg water are slowly added in blender, open stirring
Machine, records mixing time, from opening blender to polyoxyethylenated alcohol sodium sulfate, Aldehyde C-11 MOA, methyl nonyl acetaldehyde, oxygen
Change amine, itaconic acid-sodium allylsulfonate-sodium hypophosphite copolymer and itaconic acid-propenoic acid ethylacrylate-acrylic acid copolymer all to throw
It is 15～30 minutes that material terminates required time；
Step 2: slowly put into 1kg dodecylbenzene sodium sulfonate and 1.3kg sodium carbonate under normal pressure, control maximum temperature little
In 75 DEG C, when reaction temperature rises very fast, slowing down charging rate, until charging terminates, whole course of reaction is at 15～25 points
Complete in clock；
Step 3: slowly put into 3.5kg disodiumedetate under normal pressure, control maximum temperature and be less than 70 DEG C, when instead
When answering temperature to rise very fast, slowing down charging rate, until charging terminates, whole course of reaction completed in 15～25 minutes；
Step 4: 2kg dimethyl diallyl ammonium chloride-acrylamide copolymer, 0.4kg lignosulfonate, 0.3kg are gathered sky
Winter propylhomoserin, 0.3kg tallow amine and 1.5kg edible essence slowly put into blender, open blender and are stirred, stop stirring
Machine, the examination and test of products is packed.
Embodiment five:
Step one: be first passed through nitrogen in blender, blender carried out emptying process, by 2kg fatty alcohol-polyoxyethylene ether sulfur
Acid sodium, 3kg7-hydroxyl-3,7-dimethyl octanal, 3.5kg amine oxide, 0.7kg itaconic acid-sodium allylsulfonate-sodium hypophosphite are common
Polymers, 1.3kg itaconic acid-propenoic acid ethylacrylate-acrylic acid copolymer and 89kg water are slowly added in blender, open blender,
Record mixing time, from unlatching blender to polyoxyethylenated alcohol sodium sulfate, 7-hydroxyl-3,7-dimethyl octanal, oxidation
Amine, itaconic acid-sodium allylsulfonate-sodium hypophosphite copolymer and itaconic acid-propenoic acid ethylacrylate-acrylic acid copolymer all feed intake
Terminating required time is 15～30 minutes；
Step 2: slowly put into 1kg dodecylbenzene sodium sulfonate and 0.5kg sodium carbonate under normal pressure, control maximum temperature little
In 75 DEG C, when reaction temperature rises very fast, slowing down charging rate, until charging terminates, whole course of reaction is at 15～25 points
Complete in clock；
Step 3: slowly put into 2kg disodiumedetate under normal pressure, control maximum temperature and be less than 70 DEG C, work as reaction
When temperature rises very fast, slowing down charging rate, until charging terminates, whole course of reaction completed in 15～25 minutes；
Step 4: by 0.3kg dimethyl diallyl ammonium chloride-acrylamide copolymer, 0.7kg poly dimethyl allyl chlorine
Change ammonium, 0.4kg lignosulfonate, 0.8kg poly-aspartate, 0.8kg tallow amine and 1.5kg edible essence and slowly put into blender
In, to open blender and be stirred, stop blender, the examination and test of products is packed.
Embodiment six:
Step one: be first passed through nitrogen in blender, blender carried out emptying process, by 2kg fatty alcohol-polyoxyethylene ether sulfur
Acid sodium, 3.5kg methyl nonyl acetaldehyde, 2kg amine oxide, 1kg itaconic acid-sodium allylsulfonate-sodium hypophosphite copolymer, 16kg clothing health
Acid-ethyl acrylate-acrylic acid copolymer and 77kg water are slowly added in blender, open blender, record mixing time, from
Open blender to polyoxyethylenated alcohol sodium sulfate, methyl nonyl acetaldehyde, amine oxide, itaconic acid-sodium allylsulfonate-secondary phosphorous
Acid sodium copolymer and itaconic acid-propenoic acid ethylacrylate-acrylic acid copolymer all feed intake end required time be 15～30 minutes；
Step 2: slowly put into 2kg dodecylbenzene sodium sulfonate and 0.5kg sodium carbonate under normal pressure, control maximum temperature little
In 75 DEG C, when reaction temperature rises very fast, slowing down charging rate, until charging terminates, whole course of reaction is at 15～25 points
Complete in clock；
Step 3: slowly put into 5kg disodiumedetate under normal pressure, control maximum temperature and be less than 70 DEG C, work as reaction
When temperature rises very fast, slowing down charging rate, until charging terminates, whole course of reaction completed in 15～25 minutes；
Step 4: by 1.6kg PDDA, 0.5kg lignosulfonate, 0.5kg poly-aspartate, 1kg
Tallow amine and 1.5kg edible essence slowly put into blender, open blender and are stirred,
Stopping blender, the examination and test of products is packed.
Utilize embodiment one to embodiment six that the packed tower in Crude Oil Processing is carried out, it is thus achieved that following data:
| FeS(mg/cm3) | H2S(mg/m3) | Ammonia nitriding compound (mg/m3) | Little molecule mercaptan (mg/m3) | |
| Concentration before cleaning | 57 | 2052 | 1052 | 800 |
| Embodiment one | 0.01 | Do not detect | Do not detect | Do not detect |
| Embodiment two | Do not detect | Do not detect | Do not detect | Do not detect |
| Embodiment three | Do not detect | Do not detect | Do not detect | Do not detect |
| Embodiment four | Do not detect | Do not detect | 0.01 | Do not detect |
| Embodiment five | 0.01 | Do not detect | Do not detect | Do not detect |
| Embodiment six | Do not detect | Do not detect | Do not detect | Do not detect |
Can draw from the data of upper table, the not only environmental protection of the passivator of the present invention, effect is powerful simultaneously, it is possible in passivation sulfuration Asia
It is removed while ferrum, and also is able in this process effectively by stenches such as hydrogen sulfide, ammonia nitrogen and little molecule mercaptan
Gas remove, it is ensured that the personal safety of Operation and maintenance personnel.
This specific embodiment is only explanation of the invention, and it is not limitation of the present invention, people in the art
The present embodiment can be made after reading this specification by member as required does not has the amendment of creative contribution, but as long as at this
All protected by Patent Law in the right of invention.
Claims (10)
1. the agent of environment-friendly highly efficient ferrous sulfide deactivation, counts by weight, including
Fatty aldehyde 3～5 parts
Disodiumedetate 2～5 parts
Sodium carbonate 0.5～2 parts
Amine oxide 2～5 parts
Polyoxyethylenated alcohol sodium sulfate 1～2 parts
Dodecylbenzene sodium sulfonate 1～2 parts
Edible essence 1～2 parts
Itaconic acid copolymer 2～3 parts
Polyquaternary ammonium salt 1～2 parts
Corrosion inhibiter 1～2 parts
Water 77～89 parts.
A kind of environment-friendly highly efficient ferrous sulfide deactivation agent the most according to claim 1, counts by weight, including
Fatty aldehyde 4 parts
Disodiumedetate 3.5 parts
Sodium carbonate 1.3 parts
Amine oxide 3.5 parts
Polyoxyethylenated alcohol sodium sulfate 1.6 parts
Dodecylbenzene sodium sulfonate 1.4 parts
Edible essence 1.5 parts
Itaconic acid copolymer 2.6 parts
Polyquaternary ammonium salt 1.6 parts
Corrosion inhibiter 1.4 parts
83 parts of water.
A kind of environment-friendly highly efficient ferrous sulfide deactivation agent the most according to claim 1, it is characterised in that: described fatty aldehyde is
The mixing of one or more in Aldehyde C-11 MOA, methyl nonyl acetaldehyde and 7-hydroxyl-3,7-dimethyl octanal.
A kind of environment-friendly highly efficient ferrous sulfide deactivation agent the most according to claim 1, it is characterised in that: described itaconic acid is altogether
Polymers is the mixed of itaconic acid-sodium allylsulfonate-sodium hypophosphite copolymer and itaconic acid-propenoic acid ethylacrylate-acrylic acid copolymer
Compound.
A kind of environment-friendly highly efficient ferrous sulfide deactivation agent the most according to claim 4, it is characterised in that: itaconic acid-propylene
The weight ratio of sodium sulfonate-sodium hypophosphite copolymer and itaconic acid-propenoic acid ethylacrylate-acrylic acid copolymer is 1:1～2.
A kind of environment-friendly highly efficient ferrous sulfide deactivation agent the most according to claim 1, it is characterised in that: described corrosion inhibiter is
The mixture of lignosulfonate, poly-aspartate and tallow amine.
A kind of environment-friendly highly efficient ferrous sulfide deactivation agent the most according to claim 6, it is characterised in that: lignosulfonate,
The weight ratio of poly-aspartate and tallow amine is 1:1～2:1～2.
A kind of environment-friendly highly efficient ferrous sulfide deactivation agent the most according to claim 1, it is characterised in that: described polyquaternary ammonium salt
For one or both in dimethyl diallyl ammonium chloride-acrylamide copolymer, PDDA.
9. the system of a kind of environment-friendly highly efficient ferrous sulfide deactivation agent as described in any one claim in claim 1 to 8
Preparation Method, comprises the following steps:
S1, by predetermined weight number by polyoxyethylenated alcohol sodium sulfate, fatty aldehyde, amine oxide, itaconic acid copolymer and water
It is slowly added in blender, opens blender, record mixing time, from opening blender to fatty alcohol-polyoxyethylene ether sulphuric acid
Sodium, fatty aldehyde, amine oxide and itaconic acid copolymer all feed intake end required time be 15～30 minutes；
Slowly put into dodecylbenzene sodium sulfonate and the sodium carbonate of predetermined weight number under S2, normal pressure, control maximum temperature
Less than 75 DEG C, when reaction temperature rises very fast, slowing down charging rate, until charging terminates, whole course of reaction is 15～25
Complete in minute；
Slowly put into the disodiumedetate of predetermined weight number under S3, normal pressure, control maximum temperature less than 70
DEG C, when reaction temperature rises very fast, slow down charging rate, until charging terminates, whole course of reaction is in 15～25 minutes
Complete；
S4, by predetermined weight mark polyquaternary ammonium salt, corrosion inhibiter and edible essence slowly put into blender, open blender and enter
Row stirring, stops blender, and the examination and test of products is packed.
The preparation method of a kind of environment-friendly highly efficient iron sulfide passivator the most according to claim 9, it is characterised in that: S1
Middle elder generation is passed through nitrogen in blender, and blender is carried out emptying process.
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