CN107557794A - Circular regeneration type ferrous sulfide deactivation, the deodorization of sulphur ammonia amine, the three-in-one cleaning agent of anti-austenitic stainless steel Polythionic acid stress corrosion - Google Patents
Circular regeneration type ferrous sulfide deactivation, the deodorization of sulphur ammonia amine, the three-in-one cleaning agent of anti-austenitic stainless steel Polythionic acid stress corrosion Download PDFInfo
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- CN107557794A CN107557794A CN201710779415.7A CN201710779415A CN107557794A CN 107557794 A CN107557794 A CN 107557794A CN 201710779415 A CN201710779415 A CN 201710779415A CN 107557794 A CN107557794 A CN 107557794A
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Abstract
The invention provides circular regeneration type ferrous sulfide deactivation, the deodorization of sulphur ammonia amine, anti-austenitic stainless steel Polythionic acid stress corrosion three-in-one cleaning agent.The three-in-one cleaning agent can be with circular regeneration, the mass ratio of each component：Oxidant 0.5 10.0%, carbonate 1.0 10.0%, ferric sulfate 1.0 10.0%, EDETATE SODIUM salt 0.1 5.0%, ethylenediamine tetraacetic methene phosphoric acid 0.1 1.0%, sodium polyphosphate 0.5 5.0%, polyacrylate 0.5 5.0%, surfactant 0.5 5.0%, defoamer 0.1 1.0%, ferric citrate 0.1 1.0%, water 48.0 95.7%.The preferred hydrogen peroxide of oxidant, the preferred sodium acid carbonate of carbonate, the preferred OP 10 and LAS of surfactant, pH value are controlled between 5.0 10.0.The three-in-one cleaning agent can remove caused ferrous sulfide in petrochemical plant at normal temperatures, prevent its spontaneous combustion triggered, simultaneously can remove sulphur ammonia amine it is smelly, prevent polythionic acid generation to austenite stainless steel corrosion generating means stress cracking, have the characteristics that easy to operate, dosage is few, cheap, safe efficient, environmentally friendly.
Description
Technical field
The present invention relates to petrochemical industry cleaning technique field, in particular to circular regeneration type ferrous sulfide deactivation, sulphur
The deodorization of ammonia amine, the three-in-one cleaning agent of anti-austenitic stainless steel Polythionic acid stress corrosion.
Background technology
In petrochemical industry, using device of the height containing sulfur feedstock after the production run in one period, it can produce big
The ferrous sulfide of amount and with greasy filth grease etc. be adhered to equipment with pipeline, the spontaneous combustion of the presence easily initiating device of these dirts
And produce the harmful substances such as hydrogen sulfide, sulfur dioxide；Polythionic acid is also also easy to produce, and with existing chlorion to austenite
Stainless steel corrode and generating means stress corrosion cracking phenomenon, serious threat safety inspection and causes equipment heavy losses.
Meanwhile easily produce odorant simultaneously in oil refining process, such as hydrogen sulfide, sulfurous organic compound, ammonia, organic amine or nitrogenous chemical combination
Thing, when device needs shut-down (breakdown) mainteance, if purged with direct depleted of steam, will discharge into air largely poisonous and harmful has stink
Gas, environment is polluted, and being trapped in the odorant in device can also come greatly to the maintainer's safety belt entered in container
Threaten.
At present ferrous sulfide deactivation, be deodorized, prevent austenitic stainless steel polythionic acid corrosion cracking from being independent processing
Process, an an equipment even unit need two even three cleanings that process is processed as above simultaneously.In the existing stage, by
In prior art independence, it is necessary to be segmented carry out disparity items construction, considerably increase down period, increase simultaneously
The cost of overhaul is used and the discharge capacity of sewage.In the market ferrous sulfide deactivation, deodorant product, its main component is more to contain nitrogen member
Compound, the compound of chlorine element of element, the compound of nitrogen, and the use of this product can cause sewage ammonia nitrogen after cleaning
Severe overweight；Meanwhile the use of the compound of chlorine element, chlorion is produced in the solution, is improved to the rate of corrosion of carbon steel and is led
Austenitic stainless steel is caused to produce stress corrosion cracking.Further, because the soil content for needing to clean in device can not be adopted in advance
Sample, evaluation, the determination of cleaning agent usage amount are also simply rule of thumb estimated, but the change of system production technique, the cycle of operation, place
Reason amount, material quality, the quality for purging of stopping work can all influence the consumption of cleaning agent, cleaning agent in most cases be present and run out of,
The phenomenon that clean endpoint is also unable to reach, this has had a strong impact on cleaning quality.
In view of this, it is special to propose the present invention.
The content of the invention
The first object of the present invention is to provide a kind of circular regeneration type ferrous sulfide deactivation, the deodorization of sulphur ammonia amine, anti-Ovshinsky
The three-in-one cleaning agent of body stainless steel Polythionic acid stress corrosion, three-in-one cleaning agent of the present invention can simultaneously eliminate vulcanization
Ferrous spontaneous combustion, stench, austenitic stainless steel Polythionic acid stress corrosion problem, and the cleaning agent can be with circular regenerations, effectively
It compensate for the deficiencies in the prior art.
The second object of the present invention be to provide a kind of described circular regeneration type ferrous sulfide deactivation, the deodorization of sulphur ammonia amine,
The preparation method of the three-in-one cleaning agent of anti-austenitic stainless steel Polythionic acid stress corrosion, preparation method processing step of the present invention
It is few, it is easy to operate, and without using the instrument and equipment of complexity, suitable for extensive, industrialized preparation and recycle.
In order to realize the above-mentioned purpose of the present invention, spy uses following technical scheme：
A kind of circular regeneration type ferrous sulfide deactivation, the deodorization of sulphur ammonia amine, anti-austenitic stainless steel Polythionic acid stress corrosion
Three-in-one cleaning agent, the three-in-one cleaning agent is mainly made up of following components：Oxidant, carbonate, ferric sulfate, EDETATE SODIUM
Salt, ethylenediamine tetraacetic methene phosphoric acid, sodium polyphosphate, polyacrylate, surfactant, defoamer, ferric citrate, and
Water.
Preferably, according to percent by weight, circular regeneration type ferrous sulfide deactivation of the present invention, the deodorization of sulphur ammonia amine, anti-Austria
The three-in-one cleaning agent each component content of family name's body stainless steel Polythionic acid stress corrosion is as follows：Oxidant 0.5~10.0%, carbonic acid
Salt 1.0~10.0%, ferric sulfate 1.0~10.0%, EDETATE SODIUM salt 0.1~5.0%, ethylenediamine tetraacetic methene phosphoric acid 0.1~
1.0%, sodium polyphosphate 0.5~5.0%, polyacrylate 0.5~5.0%, surfactant 0.5~5.0%, defoamer
0.1~1.0%, ferric citrate 0.1~1.0%, and water 47.0~95.6%.
Preferably, according to percent by weight, circular regeneration type ferrous sulfide deactivation of the present invention, the deodorization of sulphur ammonia amine, anti-Austria
The three-in-one cleaning agent each component content of family name's body stainless steel Polythionic acid stress corrosion is as follows：Oxidant 1.0~5.0%, carbonic acid
Salt 1.0~5.0%, ferric sulfate 2.0~8.0%, EDETATE SODIUM salt 1.0~2.0%, ethylenediamine tetraacetic methene phosphoric acid 0.5~1.0%,
Sodium polyphosphate 0.5~1.0%, polyacrylate 1.0~4.0%, surfactant 1.0~4.0%, defoamer 0.5~
1.0%, ferric citrate 0.5~1.0%, and water 68.0~91.0%.
Preferably, of the invention, circular regeneration type ferrous sulfide deactivation, the deodorization of sulphur ammonia amine, anti-austenitic stainless steel connect more sulphur
In the three-in-one cleaning agent of sour stress corrosion, the oxidant is one or both of hydrogen peroxide, potassium permanganate.
Preferably, of the invention, circular regeneration type ferrous sulfide deactivation, the deodorization of sulphur ammonia amine, anti-austenitic stainless steel connect more sulphur
In the three-in-one cleaning agent of sour stress corrosion, the carbonate is one or both of sodium acid carbonate, sodium carbonate.
Preferably, of the invention, circular regeneration type ferrous sulfide deactivation, the deodorization of sulphur ammonia amine, anti-austenitic stainless steel connect more sulphur
In the three-in-one cleaning agent of sour stress corrosion, the surfactant is dodecyl benzene sulfonate, lauryl sulfate, ten
One kind or several in tetraalkyl sulfate, cetyl sulfate, APES, and AEO
Kind.
Preferably, of the invention, circular regeneration type ferrous sulfide deactivation, the deodorization of sulphur ammonia amine, anti-austenitic stainless steel connect more sulphur
In the three-in-one cleaning agent of sour stress corrosion, the defoamer is silicone emulsion, the fatty acid ester compounded thing of higher alcohols, polyoxyethylene
Polyoxypropylene pentaerythrite ether, the third pure amidogen ether of polyoxyethylene polyoxy, polypropylene glycerol aether, polyoxyethylene polyoxypropylene glycerine
One or more in ether, and dimethyl silicone polymer.
Preferably, of the invention, circular regeneration type ferrous sulfide deactivation, the deodorization of sulphur ammonia amine, anti-austenitic stainless steel connect more sulphur
In the three-in-one cleaning agent of sour stress corrosion, the EDETATE SODIUM salt is one or both of EDTA tetrasodium salts, EDETATE DISODIUM.
Preferably, of the invention, circular regeneration type ferrous sulfide deactivation, the deodorization of sulphur ammonia amine, anti-austenitic stainless steel connect more sulphur
In the three-in-one cleaning agent of sour stress corrosion, the pH of the three-in-one cleaning agent is 5.0~10.0.
Meanwhile present invention also offers the circular regeneration type ferrous sulfide deactivation, the deodorization of sulphur ammonia amine, anti-austenite stainless
The preparation method of the three-in-one cleaning agent of steel Polythionic acid stress corrosion, it comprises the following steps：(a) defoaming is added into water
Agent, stirring and dissolving；(b) surfactant, stirring and dissolving are added into step (a) resulting solution；(c) to molten obtained by step (b)
Oxidant, carbonate, ferric sulfate, EDETATE SODIUM salt, ethylenediamine tetraacetic methene phosphoric acid, sodium polyphosphate, polypropylene are sequentially added in liquid
Hydrochlorate, ferric citrate, stirring and dissolving；(d) step (c) resulting solution is subjected to pH regulations, produces the three-in-one cleaning agent.
Compared with prior art, beneficial effects of the present invention are：
Three-in-one cleaning agent of the present invention can eliminate ferrous sulfide spontaneous combustion, stench, austenitic stainless steel polythionic acid simultaneously
Stress corrosion problem, it is one multi-purpose, and cleaning charge can be reduced, the engineering time is saved, reduce quantity of wastewater effluent；
Meanwhile cleaning agent of the present invention is not nitrogenous, chlorine element, cleaning waste liquid ammonia-nitrogen content can be effectively controlled, after making processing
Sewage is easily handled qualified discharge, belongs to environment-friendly cleaning agent；Because chloride ion-containing, cleaning agent of the present invention will not produce to equipment
Raw stress corrosion；
Further, cleaning agent provided by the present invention being capable of live circular regeneration so that cleaning agent is all the time in activity
State, it is ensured that clean endpoint reaches, overcome cleaning agent estimate uncertainty in advance caused by cleaning quality risk, while also have
Easy to operate, the advantages that dosage is few, cheap, safe efficient, environmentally friendly.
Embodiment
Embodiment of the present invention is described in detail below in conjunction with embodiment, but those skilled in the art will
Understand, the following example is merely to illustrate the present invention, and is not construed as limiting the scope of the present invention.It is unreceipted specific in embodiment
Condition person, the condition suggested according to normal condition or manufacturer are carried out.Agents useful for same or the unreceipted production firm person of instrument, it is
The conventional products that can be obtained by commercially available purchase.
It is single in view of presently used cleaning agent feature, and do not only exist waste water and be difficult to handle, while it is also potential
The drawback such as secondary pollution, spy of the present invention provides a kind of new three-in-one cleaning agent, in cleaning process once, it becomes possible to
Complete ferrous sulfide deactivation, the deodorization of sulphur ammonia amine (can be removed by the sulfide, ammonia or organic amine that are deposited in device are drawn
The peculiar smell risen), three processing steps such as anti-austenitic stainless steel Polythionic acid stress corrosion, meanwhile, the three-in-one cleaning of the present invention
Agent can recycle, and can not only improve the utilization ratio of cleaning agent, while can also realize the abundant cleaning of chemical plant installations.
Specifically, circular regeneration type ferrous sulfide deactivation of the present invention, the deodorization of sulphur ammonia amine, anti-austenitic stainless steel polythionic acid
The three-in-one cleaning agent of stress corrosion, its raw material components are as follows：Oxidant, carbonate, ferric sulfate, EDETATE SODIUM salt, ethylenediamine tetraacetic
Methene phosphoric acid, sodium polyphosphate, polyacrylate, surfactant, defoamer, ferric citrate, Yi Jishui；
In the present invention, not chloride ion-containing in cleaning agent raw material used so that cleaning agent of the present invention will not be made to chemical plant installations
Into secondary chloride ion contamination, using the teaching of the invention it is possible to provide safer cleaning method；
Meanwhile the present invention in, be by cyclic regeneration device so as to realize the regeneration of three-in-one cleaning agent and recycle,
Cyclic regeneration device used is my house journal's device, and number of patent application 201621107559.5, the applying date is in September, 2016
30, grant number was：CN206139568U, authorized announcement date 2017.5.3；Likewise, three-in-one cleaning agent of the present invention is again
Raw and circulation utilization method, is also carried out according to the method in above-mentioned granted patent, and concrete operation step can also refer to the patent
The method of specification specific implementation step is carried out.
Preferably, according to percent by weight, in three-in-one cleaning agent of the present invention, each raw material components dosage is as follows：Oxidation
Agent 0.5~10.0%, such as can be, but be not limited to 1.0,1.5,2.0,2.5,3.0,3.5,4.0,4.5,5.0,5.5,6.0,
6.5th, 7.0,7.5,8.0,8.5,9.0, or 9.5%；Carbonate 1.0~10.0%, such as can be, but be not limited to 1.5,
2.0th, 2.5,3.0,3.5,4.0,4.5,5.0,5.5,6.0,6.5,7.0,7.5,8.0,8.5,9.0, or 9.5%；Ferric sulfate
1.0~10.0%, such as can be, but be not limited to 1.5,2.0,2.5,3.0,3.5,4.0,4.5,5.0,5.5,6.0,6.5,
7.0th, 7.5,8.0,8.5,9.0, or 9.5%；EDETATE SODIUM salt 0.1~5.0%, such as can be, but be not limited to 0.5,1.0,
1.5th, 2.0,2.5,3.0,3.5,4.0, or 4.5%；Ethylenediamine tetraacetic methene phosphoric acid 0.1~1.0%, such as can be, but not
It is limited to 0.2,0.3,0.4,0.5,0.6,0.7,0.8, or 0.9%；Sodium polyphosphate 0.5~5.0%, such as can be, but
It is not limited to 1.0,1.5,2.0,2.5,3.0,3.5,4.0, or 4.5%；Polyacrylate 0.5~5.0%, such as can be,
But it is not limited to 1.0,1.5,2.0,2.5,3.0,3.5,4.0, or 4.5%；Surfactant 0.5~5.0%, such as can be with
For, but it is not limited to 1.0,1.5,2.0,2.5,3.0,3.5,4.0, or 4.5%；Defoamer 0.1~1.0%, such as can be,
But it is not limited to 0.2,0.3,0.4,0.5,0.6,0.7,0.8, or 0.9%；Ferric citrate 0.1~1.0%, such as can be with
For, but it is not limited to 0.2,0.3,0.4,0.5,0.6,0.7,0.8, or 0.9%；And water 47.0~95.6%, such as can be with
For, but it is not limited to 50.0,55.0,60.0,65.0,70.0,75.0,80.0,85.0,90.0, or 95.0%；
It is furthermore preferred that according to percent by weight, in three-in-one cleaning agent of the present invention, each raw material components dosage is as follows：Oxygen
Agent 1.0~5.0%, carbonate 1.0~5.0%, ferric sulfate 2.0~8.0%, EDETATE SODIUM salt 1.0~2.0%, ethylenediamine tetraacetic
Methene phosphoric acid 0.5~1.0%, sodium polyphosphate 0.5~1.0%, polyacrylate 1.0~4.0%, surfactant 1.0~
4.0%, defoamer 0.5~1.0%, ferric citrate 0.5~1.0%, and water 68.0~91.0%.
And by the adjustment for each raw material components dosage, it also can further improve device cleaning effect.
Meanwhile the preparation method of three-in-one cleaning agent of the present invention is also more easy, its step refers to as follows：
(a) defoamer, stirring and dissolving are added into water, and is preferably stood after stirring and dissolving
Preferably, in order to which the preparation of cleaning agent and use are organically combined, thus can be in cyclic regeneration device
The preparation of three-in-one cleaning agent is carried out, that is, adds water in cyclic regeneration device, then, then carries out follow-up married operation；
And cyclic regeneration device as described above is my house journal's device, number of patent application is
201621107559.5, the applying date is September in 2016 30, and grant number is：CN206139568U, authorized announcement date are
2017.5.3；
(b) surfactant is added into step (a) resulting solution, stirring and dissolving, and it is preferably quiet after stirring and dissolving
Put
(c) oxidant, carbonate, ferric sulfate, EDETATE SODIUM salt, ethylenediamine tetraacetic are sequentially added into step (b) resulting solution
Methene phosphoric acid, sodium polyphosphate, polyacrylate, ferric citrate, stirring and dissolving；
(d) step (c) resulting solution is subjected to pH regulations, produces the three-in-one cleaning agent.
And the flow cleaned using the application three-in-one cleaning agent refer to it is as follows：Mix and make in cyclic regeneration device
Standby obtained delivery port of the three-in-one cleaning agent through cyclic regeneration device enters in device to be cleaned, is subsequently used for device to be cleaned
Cleaning, cleaning agent and sewage after cleaning device enter in cyclic regeneration device, and by Cation adsorption bed to cleaning/passivation
Caused ferrous ion is adsorbed afterwards, is then ferric ion by being aerated oxidation of divalent iron ion, is improved and inhale
Attached efficiency, meanwhile, the ammonia nitrogen in sewage is subjected to oxidation processes by being aerated, regeneration cleaning agent after treatment is again introduced into
In device to be cleaned, cleaning treatment is carried out, is recycled successively.
Embodiment 1
910kg water is added into cyclic regeneration device；Xiang Shuizhong adds 5kg dimethyl silicone polymers, stirring and dissolving, quiet
Put；Add surfactant 10kg OP-10 and 5kg LAS, stirring and dissolving, standing；Then 5kg peroxides are slowly added to successively
Change hydrogen, 20kg ferric sulfate, 10kg sodium acid carbonates, 10kgEDTA disodiums, 5kg ethylenediamine tetraacetic methenes phosphoric acid, 5kg sodium polyphosphates,
10kg Sodium Polyacrylates, 5kg ferric citrates, stirring and dissolving, the pH of resulting solution is then adjusted, obtains 1 ton of three-in-one cleaning
Agent, pH value 8.2.
1 ton of three-in-one cleaning agent made from embodiment 1 is diluted with water 10 times, it is 50m to be added to volume3Removal of mercaptans system
In disulphide knockout drum, contain ferrous sulfide and thioether in disulphide knockout drum after testing, there is sharp aroma.Start circulation
Regenerating unit implements wash cycles, scavenging period 6h, 20-40 DEG C of cleaning temperature, measures cleaning fluid pH value.Cleaning is opened after terminating
Equipment, detection device surface are as a result as follows：
| Detection project | Testing result | Remarks |
| PH value | 7.5 | |
| Equipment surface situation | Surface is substantially without dirt | |
| Equipment opens whether there is temperature rise | Without temperature rise | |
| Smell in equipment | Basic odorlessness | There is sharp aroma before cleaning in equipment |
Meanwhile identical equipment is cleaned using the conventional method for filling immersion, and use three conjunctions with the application
The method that one cleaning agent carries out circular regeneration cleaning is contrasted, as a result as shown in the table：
From as above list data, using three-in-one cleaning agent of the present invention as cleaning agent, and circular regeneration of the present invention is used
Method removal of mercaptans system disulphide knockout drum is cleaned, can not only effectively reduce the dosage of cleaning agent, Er Qieneng
Scavenging period is enough saved, reduces quantity of wastewater effluent, and can be removed by once cleaning i.e. completion ferrous sulfide deactivation, sulphur ammonia amine
Three processing steps such as smelly, anti-austenitic stainless steel Polythionic acid stress corrosion, this is compared to the existing sulphur of removal of mercaptans system two
For compound knockout drum cleaning method, hence it is evident that it is more time saving and energy saving and more environmentally-friendly, it is more suitable for popularization and application.
Embodiment 2
1770kg water is added into cyclic regeneration device；Xiang Shuizhong adds 10kg dimethyl silicone polymers, stirring and dissolving, quiet
Put；Add surfactant 25kg OP-10 and 10kg LAS, stirring and dissolving, standing；Then 25kg mistakes are slowly added to successively
Hydrogen oxide, 50kg ferric sulfate, 20kg sodium acid carbonates, 20kg EDETATE SODIUMs, 15kg ethylenediamine tetraacetic methenes phosphoric acid, 10kg poly phosphorus
Sour sodium, 20kg Sodium Polyacrylates, 25kg ferric citrates, stirring and dissolving, pH regulations then are carried out to resulting solution, obtain 2 tons
Three-in-one cleaning agent, pH value 6.1.
2 tons of three-in-one cleaning agents made from embodiment 2 are diluted with water 10 times, it is 75m to be added to volume3Desulphurization system is rich
In liquid flash tank, contain ferrous sulfide and ammoniacal liquor in rich solution flash tank after testing, there is ammonia stink.Start cyclic regeneration device to implement
Wash cycles, scavenging period 6h, 20-40 DEG C of cleaning temperature, measure cleaning fluid pH value.Cleaning opens equipment after terminating, and detection is set
Standby surface, it is as a result as follows：
| Detection project | Testing result | Remarks |
| PH value | 6.4 | |
| Equipment surface situation | Surface is substantially without dirt | |
| Equipment opens whether there is temperature rise | Without temperature rise | |
| Smell in equipment | Basic odorlessness | There is ammonia amine stink before cleaning in equipment |
Meanwhile identical equipment is cleaned using the conventional method for filling immersion, and use three conjunctions with the application
The method that one cleaning agent carries out circular regeneration cleaning is contrasted, as a result as shown in the table：
From as above list data, using three-in-one cleaning agent of the present invention as cleaning agent, and circular regeneration of the present invention is used
Method desulphurization system rich solution flash tank is cleaned, can not only effectively reduce the dosage of cleaning agent, and can save
Scavenging period, quantity of wastewater effluent is reduced, and can complete ferrous sulfide deactivation, the deodorization of sulphur ammonia amine, anti-Austria by once cleaning
Three processing steps such as family name's body stainless steel Polythionic acid stress corrosion, this is cleaned compared to existing desulphurization system rich solution flash tank
It is equally also more green for method.
Embodiment 3：
1770kg water is added into cyclic regeneration device；Xiang Shuizhong adds 20kg dimethyl silicone polymers, stirring and dissolving, quiet
Put；Add surfactant 40kg OP-10 and 15kg LAS, stirring and dissolving, standing；Then 20kg mistakes are slowly added to successively
Hydrogen oxide, 60kg ferric sulfate, 60kg sodium acid carbonates, 30kg EDETATE SODIUMs, 20kg ethylenediamine tetraacetic methenes phosphoric acid, 20kg poly phosphorus
Sour sodium, 30kg Sodium Polyacrylates, 30kg ferric citrates, stirring and dissolving, pH regulations then are carried out to resulting solution, obtain 3 tons
Three-in-one cleaning agent, pH value 9.4.
3 tons of three-in-one cleaning agents made from embodiment 3 are diluted with water 10 times, it is 150m to be added to volume3Hydrogenation reaction
In the hot high score tank of system, contain ferrous sulfide and polythionic acid in hot high score tank after testing.Start cyclic regeneration device to implement to follow
Ring cleans, scavenging period 6h, 20-40 DEG C of cleaning temperature, measures cleaning fluid pH value.Cleaning opens equipment, detection device after terminating
Surface, it is as a result as follows：
| Detection project | Testing result | Remarks |
| PH value | 8.7 | |
| Equipment surface situation | Surface is substantially without dirt | |
| Equipment opens whether there is temperature rise | Without temperature rise | |
| Equipment opens whether there is stress corrosion cracking | Stress-free corrosion ftractures |
Meanwhile identical equipment is cleaned using the conventional method for filling immersion, and use three conjunctions with the application
The method that one cleaning agent carries out circular regeneration cleaning is contrasted, as a result as shown in the table：
From as above list data, using three-in-one cleaning agent of the present invention as cleaning agent, and circular regeneration of the present invention is used
Method the hot high score tank of hydrogenation reaction system is cleaned, can not only effectively reduce the dosage of cleaning agent, and can save
About scavenging period, quantity of wastewater effluent is reduced, and can be by once cleaning i.e. completion ferrous sulfide deactivation, the deodorization of sulphur ammonia amine, preventing
Three processing steps such as austenitic stainless steel Polythionic acid stress corrosion, this is compared to the hot high score tank of existing hydrogenation reaction system
For cleaning method, hence it is evident that safer environmental protection, and can effectively reduce cleaning and maintenance cost.
Although illustrate and describing the present invention with specific embodiment, but will be appreciated that without departing substantially from the present invention's
Many other change and modification can be made in the case of spirit and scope.It is, therefore, intended that in the following claims
Including belonging to all such changes and modifications in the scope of the invention.
Claims (10)
1. a kind of circular regeneration type ferrous sulfide deactivation, sulphur ammonia amine deodorization, anti-austenitic stainless steel Polythionic acid stress corrosion
Three-in-one cleaning agent, it is characterised in that the three-in-one cleaning agent is mainly made up of following components：
Oxidant, carbonate, ferric sulfate, EDETATE SODIUM salt, ethylenediamine tetraacetic methene phosphoric acid, sodium polyphosphate, polyacrylate, surface
Activating agent, defoamer, ferric citrate, Yi Jishui.
2. circular regeneration type ferrous sulfide deactivation according to claim 1, the deodorization of sulphur ammonia amine, anti-austenitic stainless steel are even more
The three-in-one cleaning agent of sulfuric acid stress corrosion, it is characterised in that according to percent by weight, each component content is as follows：
Oxidant 0.5~10.0%, carbonate 1.0~10.0%, ferric sulfate 1.0~10.0%, EDETATE SODIUM salt 0.1~5.0%,
Ethylenediamine tetraacetic methene phosphoric acid 0.1~1.0%, sodium polyphosphate 0.5~5.0%, polyacrylate 0.5~5.0%, surface-active
Agent 0.5~5.0%, defoamer 0.1~1.0%, ferric citrate 0.1~1.0%, and water 47.0~95.6%.
3. circular regeneration type ferrous sulfide deactivation according to claim 2, the deodorization of sulphur ammonia amine, anti-austenitic stainless steel are even more
The three-in-one cleaning agent of sulfuric acid stress corrosion, it is characterised in that according to percent by weight, each component content is as follows：
Oxidant 1.0~5.0%, carbonate 1.0~5.0%, ferric sulfate 2.0~8.0%, EDETATE SODIUM salt 1.0~2.0%, second
The methene phosphoric acid 0.5~1.0% of diamines four, sodium polyphosphate 0.5~1.0%, polyacrylate 1.0~4.0%, surfactant
1.0~4.0%, defoamer 0.5~1.0%, ferric citrate 0.5~1.0%, and water 68.0~91.0%.
4. circular regeneration type ferrous sulfide deactivation, the deodorization of sulphur ammonia amine, anti-austenite according to any one of claim 1-3
The three-in-one cleaning agent of stainless steel Polythionic acid stress corrosion, it is characterised in that the oxidant is hydrogen peroxide, potassium permanganate
One or both of.
5. circular regeneration type ferrous sulfide deactivation, the deodorization of sulphur ammonia amine, anti-austenite according to any one of claim 1-3
The three-in-one cleaning agent of stainless steel Polythionic acid stress corrosion, it is characterised in that the carbonate is in sodium acid carbonate, sodium carbonate
One or two.
6. circular regeneration type ferrous sulfide deactivation, the deodorization of sulphur ammonia amine, anti-austenite according to any one of claim 1-3
The three-in-one cleaning agent of stainless steel Polythionic acid stress corrosion, it is characterised in that the surfactant is detergent alkylate sulphur
Hydrochlorate, lauryl sulfate, tetradecyl sulfate, cetyl sulfate, APES, and fatty alcohol
One or more in APEO.
7. circular regeneration type ferrous sulfide deactivation, the deodorization of sulphur ammonia amine, anti-austenite according to any one of claim 1-3
The three-in-one cleaning agent of stainless steel Polythionic acid stress corrosion, it is characterised in that the defoamer is silicone emulsion, high-carbon alcohol ester
Fat acid esters compound, polyoxyethylene polyoxypropylene pentaerythrite ether, the third pure amidogen ether of polyoxyethylene polyoxy, polypropylene glycerol aether,
Polyoxyethylene polyoxypropylene glycerin ether, and the one or more in dimethyl silicone polymer.
8. circular regeneration type ferrous sulfide deactivation, the deodorization of sulphur ammonia amine, anti-austenite according to any one of claim 1-3
The three-in-one cleaning agent of stainless steel Polythionic acid stress corrosion, it is characterised in that the EDETATE SODIUM salt is EDTA tetrasodium salts, EDTA
One or both of disodium salt.
9. circular regeneration type ferrous sulfide deactivation, the deodorization of sulphur ammonia amine, anti-austenite according to any one of claim 1-3
The three-in-one cleaning agent of stainless steel Polythionic acid stress corrosion, it is characterised in that the pH of the three-in-one cleaning agent be 5.0~
10.0。
10. circular regeneration type ferrous sulfide deactivation, the deodorization of sulphur ammonia amine, anti-austenite any one of claim 1-9 are not
The preparation method of the three-in-one cleaning agent of rust steel Polythionic acid stress corrosion, it is characterised in that the preparation method includes as follows
Step：
(a) defoamer, stirring and dissolving are added into water；
(b) surfactant, stirring and dissolving are added into step (a) resulting solution；
(c) oxidant, carbonate, ferric sulfate, EDETATE SODIUM salt, ethylenediamine tetraacetic methene are sequentially added into step (b) resulting solution
Phosphoric acid, sodium polyphosphate, polyacrylate, ferric citrate, stirring and dissolving；
(d) step (c) resulting solution is subjected to pH regulations, produces the three-in-one cleaning agent.
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