CN117285961A - Ferrous sulfide passivation deodorant and preparation method and application method thereof - Google Patents
Ferrous sulfide passivation deodorant and preparation method and application method thereof Download PDFInfo
- Publication number
- CN117285961A CN117285961A CN202311097515.3A CN202311097515A CN117285961A CN 117285961 A CN117285961 A CN 117285961A CN 202311097515 A CN202311097515 A CN 202311097515A CN 117285961 A CN117285961 A CN 117285961A
- Authority
- CN
- China
- Prior art keywords
- deodorant
- ferrous sulfide
- passivation
- passivating
- sodium
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- MBMLMWLHJBBADN-UHFFFAOYSA-N Ferrous sulfide Chemical compound [Fe]=S MBMLMWLHJBBADN-UHFFFAOYSA-N 0.000 title claims abstract description 74
- 238000002161 passivation Methods 0.000 title claims abstract description 65
- 239000002781 deodorant agent Substances 0.000 title claims abstract description 62
- 238000000034 method Methods 0.000 title claims abstract description 21
- 238000002360 preparation method Methods 0.000 title claims abstract description 11
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims abstract description 54
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 31
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims abstract description 24
- UMPKMCDVBZFQOK-UHFFFAOYSA-N potassium;iron(3+);oxygen(2-) Chemical compound [O-2].[O-2].[K+].[Fe+3] UMPKMCDVBZFQOK-UHFFFAOYSA-N 0.000 claims abstract description 18
- 150000002191 fatty alcohols Chemical class 0.000 claims abstract description 14
- 235000014113 dietary fatty acids Nutrition 0.000 claims abstract description 13
- 239000000194 fatty acid Substances 0.000 claims abstract description 13
- 229930195729 fatty acid Natural products 0.000 claims abstract description 13
- 150000004665 fatty acids Chemical class 0.000 claims abstract description 13
- 229940051841 polyoxyethylene ether Drugs 0.000 claims abstract description 13
- 229920000056 polyoxyethylene ether Polymers 0.000 claims abstract description 13
- 229910000029 sodium carbonate Inorganic materials 0.000 claims abstract description 12
- 239000001488 sodium phosphate Substances 0.000 claims abstract description 12
- JXAZAUKOWVKTLO-UHFFFAOYSA-L sodium pyrosulfate Chemical compound [Na+].[Na+].[O-]S(=O)(=O)OS([O-])(=O)=O JXAZAUKOWVKTLO-UHFFFAOYSA-L 0.000 claims abstract description 12
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 claims abstract description 12
- 229910000406 trisodium phosphate Inorganic materials 0.000 claims abstract description 12
- 235000019801 trisodium phosphate Nutrition 0.000 claims abstract description 12
- 239000008367 deionised water Substances 0.000 claims abstract description 11
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 11
- 235000019864 coconut oil Nutrition 0.000 claims abstract description 10
- 239000003240 coconut oil Substances 0.000 claims abstract description 10
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 claims abstract description 9
- 229960001484 edetic acid Drugs 0.000 claims abstract description 9
- 238000004140 cleaning Methods 0.000 claims abstract description 8
- 230000007797 corrosion Effects 0.000 claims description 22
- 238000005260 corrosion Methods 0.000 claims description 22
- 239000002994 raw material Substances 0.000 claims description 17
- 238000004332 deodorization Methods 0.000 claims description 14
- 238000003756 stirring Methods 0.000 claims description 10
- 239000007788 liquid Substances 0.000 claims description 7
- 239000007800 oxidant agent Substances 0.000 claims description 6
- 239000004094 surface-active agent Substances 0.000 claims description 6
- 239000002738 chelating agent Substances 0.000 claims description 5
- 239000003112 inhibitor Substances 0.000 claims description 5
- 239000003381 stabilizer Substances 0.000 claims description 5
- 238000011049 filling Methods 0.000 claims description 4
- 239000007787 solid Substances 0.000 claims description 4
- 235000013162 Cocos nucifera Nutrition 0.000 claims description 3
- 244000060011 Cocos nucifera Species 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 3
- 230000001590 oxidative effect Effects 0.000 claims description 3
- UEUXEKPTXMALOB-UHFFFAOYSA-J tetrasodium;2-[2-[bis(carboxylatomethyl)amino]ethyl-(carboxylatomethyl)amino]acetate Chemical group [Na+].[Na+].[Na+].[Na+].[O-]C(=O)CN(CC([O-])=O)CCN(CC([O-])=O)CC([O-])=O UEUXEKPTXMALOB-UHFFFAOYSA-J 0.000 claims description 3
- 230000001877 deodorizing effect Effects 0.000 abstract description 7
- 239000000126 substance Substances 0.000 abstract description 3
- 230000035484 reaction time Effects 0.000 abstract description 2
- 239000002131 composite material Substances 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 11
- 239000003795 chemical substances by application Substances 0.000 description 8
- 230000000694 effects Effects 0.000 description 8
- 238000012360 testing method Methods 0.000 description 8
- 229910052751 metal Inorganic materials 0.000 description 7
- 239000002184 metal Substances 0.000 description 7
- 239000000243 solution Substances 0.000 description 7
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 5
- 239000001301 oxygen Substances 0.000 description 5
- 229910052760 oxygen Inorganic materials 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 4
- 238000001514 detection method Methods 0.000 description 4
- 239000003814 drug Substances 0.000 description 4
- 239000003921 oil Substances 0.000 description 4
- 235000019198 oils Nutrition 0.000 description 4
- 229910052717 sulfur Inorganic materials 0.000 description 4
- 239000011593 sulfur Substances 0.000 description 4
- 239000011521 glass Substances 0.000 description 3
- 150000002500 ions Chemical class 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 2
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 2
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000000460 chlorine Substances 0.000 description 2
- 229910052801 chlorine Inorganic materials 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 239000000295 fuel oil Substances 0.000 description 2
- 239000004519 grease Substances 0.000 description 2
- 239000008233 hard water Substances 0.000 description 2
- 229910001385 heavy metal Inorganic materials 0.000 description 2
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002736 nonionic surfactant Substances 0.000 description 2
- KMUONIBRACKNSN-UHFFFAOYSA-N potassium dichromate Chemical compound [K+].[K+].[O-][Cr](=O)(=O)O[Cr]([O-])(=O)=O KMUONIBRACKNSN-UHFFFAOYSA-N 0.000 description 2
- 238000007670 refining Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000010802 sludge Substances 0.000 description 2
- 238000002791 soaking Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000005303 weighing Methods 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 239000003463 adsorbent Substances 0.000 description 1
- 239000012670 alkaline solution Substances 0.000 description 1
- 150000001450 anions Chemical class 0.000 description 1
- 230000000844 anti-bacterial effect Effects 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- QKSKPIVNLNLAAV-UHFFFAOYSA-N bis(2-chloroethyl) sulfide Chemical compound ClCCSCCCl QKSKPIVNLNLAAV-UHFFFAOYSA-N 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 239000013522 chelant Substances 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000004042 decolorization Methods 0.000 description 1
- 238000005202 decontamination Methods 0.000 description 1
- 230000003588 decontaminative effect Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000001804 emulsifying effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 229960004887 ferric hydroxide Drugs 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 238000011086 high cleaning Methods 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- IEECXTSVVFWGSE-UHFFFAOYSA-M iron(3+);oxygen(2-);hydroxide Chemical compound [OH-].[O-2].[Fe+3] IEECXTSVVFWGSE-UHFFFAOYSA-M 0.000 description 1
- 230000007794 irritation Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000004525 petroleum distillation Methods 0.000 description 1
- 239000012286 potassium permanganate Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000036632 reaction speed Effects 0.000 description 1
- 238000006479 redox reaction Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Classifications
-
- 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
- C10G29/00—Refining of hydrocarbon oils, in the absence of hydrogen, with other chemicals
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
- B01D53/1456—Removing acid components
- B01D53/1468—Removing hydrogen sulfide
-
- 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
- C10G2300/00—Aspects relating to hydrocarbon processing covered by groups C10G1/00 - C10G99/00
- C10G2300/20—Characteristics of the feedstock or the products
- C10G2300/201—Impurities
- C10G2300/202—Heteroatoms content, i.e. S, N, O, P
Landscapes
- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Organic Chemistry (AREA)
- Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
Abstract
The invention discloses a ferrous sulfide passivation deodorant and a preparation method and a use method thereof, belonging to the technical field of petrochemical industry. The ferrous sulfide passivation deodorant comprises the following components in percentage by weight: 5-10% of potassium ferrate, 2-5% of sodium pyrosulfate, 1-2% of ethylene diamine tetraacetic acid, 1-2% of sodium carbonate, 2-5% of trisodium phosphate, 15-20% of sodium hydroxide, 1-4% of coconut oil fatty acid diethanolamide, 2-5% of fatty alcohol polyoxyethylene ether and the balance of deionized water. The composite ferrous sulfide passivation deodorant can effectively shorten the cleaning passivation deodorizing time, improve the chemical combination reaction time, improve the cleaning passivation deodorizing effect, reduce the cost and reduce the secondary pollution.
Description
Technical Field
The invention relates to the technical field of petrochemical industry, in particular to a ferrous sulfide passivation deodorant and a preparation method and a use method thereof.
Background
At present, along with the increase of the proportion of high sulfur-containing raw materials in petrochemical enterprises and the like, sulfur has increasingly serious corrosion to equipment, and a large amount of FeS (H) can be generated from petroleum distillation to secondary processing 2 S), the production device is always affected by sulfur corrosion. In the light oil portion, corrosion products such as FeS are directly formed on the surface of the facility steel, and FeS is attached to the surface of the facility steel together with oil sludge at the heavy oil portion, and FeS is present in a mixture of sludge at the bottom portion of the tower.
These corrosion products do not present problems during normal operation of the plant but F during maintenanceThe eS can contact with oxygen in the air, can generate strong oxidation-reduction reaction and emit a large amount of heat, so that spontaneous combustion can generate fire and explosion accidents, and equipment is damaged. Sulfur dioxide generated during combustion and H in equipment 2 The S and other toxic and harmful gases easily cause personal injury and environmental pollution to factory maintenance staff, and the accidents not only cause huge economic loss, but also can cause casualties. Therefore, feS removal becomes the first safety process of shutdown maintenance of modern high sulfur crude oil refining equipment.
However, the ferrous sulfide passivating agent sold in the market at present has long service time, slow reaction and poor deodorizing effect.
Therefore, it is an urgent need for a solution to the problem of those skilled in the art to provide a novel ferrous sulfide passivation deodorant capable of shortening the use time and improving the deodorizing effect.
Disclosure of Invention
In view of the above, the invention provides a ferrous sulfide passivation deodorant, a preparation method and a use method thereof, which improve the dosage formula of the deodorant in the prior art, and make use of the action relationship among the limited raw material types to enable the ferrous sulfide passivation deodorant, on one hand, to convert ferrous sulfide easy to self-ignite into a relatively stable compound; alternatively, the alcohol and SO in the device can be also used 2 、H 2 And (3) carrying out neutralization reaction on harmful gases such as S and the like to generate harmless substances. Not only has excellent passivation and deodorization effects, but also shortens passivation and deodorization time.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the ferrous sulfide passivation deodorant comprises the following components in percentage by weight: 3-9% of surfactant, 5-10% of oxidant, 2-5% of corrosion inhibitor, 1-2% of chelating agent, 2-5% of stabilizer, 16-22% of pH regulator and the balance of deionized water.
The beneficial effects that above-mentioned technical scheme reached are: according to the technical scheme, the passivation method can be used for rapidly and effectively passivating, removing ferrous sulfide attached to petrochemical equipment, particularly refining equipment, absorbing harmful gases such as hydrogen sulfide and mustard gas generated in the petrochemical equipment, saving time and saving energy compared with the prior art, and the passivation deodorant prepared by the method has the price of 1.5 ten thousand yuan per ton, and the price of 2 ten thousand yuan per ton of the deodorant in the prior market, namely further reducing the production cost; and is safer, more environment-friendly and more efficient.
Preferably, the surfactant comprises coconut oil fatty acid diethanolamide and fatty alcohol polyoxyethylene ether.
The beneficial effects that above-mentioned technical scheme reached are: the surfactant defined by the invention is the compound of coconut fatty acid diethanolamide and fatty alcohol polyoxyethylene ether, wherein the coconut fatty acid diethanolamide has no cloud point, is light yellow to amber viscous liquid, is easy to dissolve in water, has good functions of foaming, foam stabilization, permeation decontamination, hard water resistance and the like, and belongs to a nonionic surfactant. Fatty alcohol polyoxyethylene ether is also called polyethoxylated fatty alcohol, and has good detergency wetting, emulsifying, hard water resistance, low irritation and non-ionic surfactant with biological degradation function. The two components are subjected to compatibility interaction, so that the two components can remove grease on the surface of ferrous sulfide in a medicament formula, and the grease is decomposed and emulsified in an ice-cold way, so that the passivation deodorant can fully contact with ferrous sulfide, namely has better oil removing effect and strong adaptability compared with other surfactants in a shorter time and a smaller dosage range; the effects of rapidness, time saving, high cleaning rate and no need of special treatment are achieved.
Preferably, the oxidizing agent is potassium ferrate.
The beneficial effects that above-mentioned technical scheme reached are: potassium ferrate (K) 2 FeO 4 ) The solution is a dark purple glossy powder, the alkalinity of the solution increases along with decomposition, and the solution is quite stable in a strong alkaline solution and is an excellent oxidant. On the one hand, the potassium ferrate has better bactericidal effect, and in addition, the ferrate ion can be decomposed to generate ferric hydroxide as an adsorbent to adsorb various anions and cations, so that the potassium ferrate has excellent adsorption, decolorization and deodorization effects; on the other hand, compared with manganese dioxide, potassium permanganate and potassium dichromate, the potassium ferrate has no secondary pollution of heavy metals;no chlorine-containing compounds are produced compared to chlorine-containing oxidants. The action mechanism of the potassium ferrate in the invention is as follows: after the ferrous sulfide is dissolved in water, oxygen can be released, and oxygen in the medicament can be oxidized with ferrous sulfide on equipment to generate stable oxide, and meanwhile, the ferrous sulfide is oxidized into sulfate to prevent contact air from burning.
Preferably, the corrosion inhibitor is trisodium phosphate;
the chelating agent is tetrasodium ethylenediamine tetraacetate;
the stabilizer is sodium pyrosulfate;
the pH adjustor includes sodium hydroxide and sodium carbonate.
The beneficial effects that above-mentioned technical scheme reached are: wherein, trisodium phosphate is used as a corrosion inhibitor, can form a precipitation film together with metal ions to be deposited on the surface of the metal, and isolates dissolved oxygen in water and corrosion of corrosive ions on the metal; the tetra sodium ethylenediamine tetraacetate is used as a chelating agent, so that the reaction speed can be controlled, and the salt or heavy metal ions in petrochemical equipment can be more efficiently and rapidly complexed; the stabilizer is sodium pyrosulfate, and plays a role in promoting the potassium ferrate to exert the oxidation performance in the formula, namely an auxiliary agent of the potassium ferrate; sodium carbonate and sodium hydroxide are used to absorb harmful gases in petrochemical production facilities and to adjust the pH of the solution.
Preferably, the ferrous sulfide passivation deodorant comprises the following components in percentage by weight: 5-10% of potassium ferrate, 2-5% of sodium pyrosulfate, 1-2% of ethylene diamine tetraacetic acid, 1-2% of sodium carbonate, 2-5% of trisodium phosphate, 15-20% of sodium hydroxide, 1-4% of coconut oil fatty acid diethanolamide, 2-5% of fatty alcohol polyoxyethylene ether and the balance of deionized water.
Preferably, the ferrous sulfide passivation deodorant comprises the following components in percentage by weight: 8% of potassium ferrate, 4% of sodium pyrosulfate, 1% of ethylene diamine tetraacetic acid, 2% of sodium carbonate, 4% of trisodium phosphate, 18% of sodium hydroxide, 3% of coconut oil fatty acid diethanolamide, 4% of fatty alcohol polyoxyethylene ether and the balance of deionized water.
The preparation method of the ferrous sulfide passivation deodorant comprises the following steps:
(1) Weighing the materials according to the raw material usage percentage of the ferrous sulfide passivation deodorant;
(2) Slowly adding the sodium hydroxide into water while stirring, adding other raw materials into the water while stirring according to the sequence of liquid before solid until the raw materials are completely dissolved, and naturally cooling to obtain the ferrous sulfide passivation deodorant.
The application method of the ferrous sulfide passivation deodorant comprises the following steps:
filling water into the cleaned equipment, and then adding ferrous sulfide passivation deodorant for passivation and deodorization while circulating.
Preferably, the addition amount of the ferrous sulfide passivation deodorant is 5-15wt% of circulating water in the cleaning equipment; wherein the circulating water comprises water in the washing apparatus, the medicament tank and the process line.
Preferably, the cycle time is 2-9 hours and the cycle temperature is 20-50 ℃.
Compared with the prior art, the ferrous sulfide passivation deodorant provided by the invention, and the preparation method and the use method thereof have the following beneficial effects:
1. the ferrous sulfide passivation deodorant prepared by the invention has strong water solubility and decomposability through the interaction among the components, can effectively remove heavy oil and light oil, has strong permeability, and can effectively oxidize ferrous sulfide to convert the ferrous sulfide into stable chelate and aggregate particles, and fully passivates and retards flame retardance;
2. can effectively shorten the cleaning passivation deodorization time, improve the chemical combination reaction time, achieve the effects of improving the cleaning passivation deodorization, reduce the cost and reduce the secondary pollution.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely, and it is apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The embodiment of the invention discloses a ferrous sulfide passivation deodorant, which comprises the following components in percentage by weight:
5-10% of potassium ferrate, 2-5% of sodium pyrosulfate, 1-2% of ethylene diamine tetraacetic acid, 1-2% of sodium carbonate, 2-5% of trisodium phosphate, 15-20% of sodium hydroxide, 1-4% of coconut oil fatty acid diethanolamide, 2-5% of fatty alcohol polyoxyethylene ether and the balance of deionized water.
The preparation method of the ferrous sulfide passivation deodorant comprises the following steps:
(1) Weighing materials according to the raw material consumption percentage of the ferrous sulfide passivation deodorant;
(2) Slowly adding the sodium hydroxide into water while stirring, adding other raw materials into the water while stirring according to the sequence of liquid before solid until the raw materials are completely dissolved, and naturally cooling to obtain the ferrous sulfide passivation deodorant.
The application method of the ferrous sulfide passivation deodorant comprises the following steps:
filling water into the cleaned equipment, and then adding ferrous sulfide passivation deodorant for passivation and deodorization while circulating.
Wherein, the dosage of the ferrous sulfide passivation deodorant is 5-15wt% of the circulating water in the cleaning equipment; the circulation time is 2-9h, and the circulation temperature is 20-50 ℃.
Example 1
The ferrous sulfide passivation deodorant comprises the following components in percentage by weight:
5% of potassium ferrate, 2% of sodium pyrosulfate, 1% of ethylene diamine tetraacetic acid, 1% of sodium carbonate, 2% of trisodium phosphate, 15% of sodium hydroxide, 1% of coconut oil fatty acid diethanolamide, 2% of fatty alcohol polyoxyethylene ether and the balance of deionized water.
Example 2
The ferrous sulfide passivation deodorant comprises the following components in percentage by weight:
8% of potassium ferrate, 4% of sodium pyrosulfate, 1% of ethylene diamine tetraacetic acid, 2% of sodium carbonate, 4% of trisodium phosphate, 18% of sodium hydroxide, 3% of coconut oil fatty acid diethanolamide, 4% of fatty alcohol polyoxyethylene ether and the balance of deionized water.
Example 3
The ferrous sulfide passivation deodorant comprises the following components in percentage by weight:
10% of potassium ferrate, 5% of sodium pyrosulfate, 2% of ethylene diamine tetraacetic acid, 2% of sodium carbonate, 5% of trisodium phosphate, 20% of sodium hydroxide, 4% of coconut oil fatty acid diethanolamide, 5% of fatty alcohol polyoxyethylene ether and the balance of deionized water.
Example 4
The preparation method of the ferrous sulfide passivation deodorant specifically comprises the following steps:
(1) The required raw materials are weighed according to the weight percentage of the raw materials defined in the example 2;
(2) Slowly adding the weighed sodium hydroxide into water, and stirring while adding to prevent too high temperature;
(3) After the sodium hydroxide solution is cooled, slowly dissolving the weighed other raw materials into the sodium hydroxide solution according to the sequence of liquid before solid, knowing that all the raw materials are completely dissolved, stirring while adding, and uniformly layering;
(4) After all the raw materials are uniformly dissolved, the temperature is reduced, and the raw materials can be barreled for use (lower than 40 ℃).
Verification of the Effect of the iron sulfide passivation deodorant prepared according to example 4
1. Deodorization rate
The relevant test conditions were:
the deodorizing rate test steps are as follows:
(1) taking 2g of ferrous sulfide (sealing);
(2) preparing 8% aqueous solution of ferrous sulfide passivation deodorant (2 kg) and placing into a beaker;
(3) the temperature of the ferrous sulfide passivation deodorant is controlled to be between 30 and 40 ℃;
(4) rapidly placing the sealed ferrous sulfide into a pre-prepared ferrous sulfide passivation deodorant (beaker);
(5) in the passivation and deodorization process, the glass beaker is slowly shaken to accelerate the decomposition of ferrous sulfide.
Inspection of
(1) After the ferrous sulfide is reacted in a passivation deodorant (beaker) for 6 hours, harmful gas detection is carried out;
(2) stirring (glass rod) the medicament liquid during detection;
(3) the four-in-one gas detector is used for detecting harmful gas while stirring;
(4) when the gas detector does not give an alarm, the deodorizing process can be ended;
as a result, the detection result shows that H is present 2 S and other harmful gases, namely oxygen, hydrogen sulfide gas, carbon dioxide, combustible gas and other four-in-one detectors can give an alarm, otherwise deodorization is completed, (H) 2 S has odor), the total deodorizing efficiency is up to more than 99%, and the product is qualified (98% of China).
2. Passivation rate
The relevant test conditions were:
the passivation rate test steps are as follows:
(1) taking 2g of ferrous sulfide (sealing);
(2) preparing 8% aqueous solution of ferrous sulfide passivation deodorant (2 kg) and placing into a beaker;
(3) the temperature is controlled to be between 30 and 40 ℃;
(4) rapidly placing the sealed ferrous sulfide into a pre-prepared ferrous sulfide passivation deodorant (beaker);
(5) in the passivation and deodorization process, the glass beaker is slowly shaken to accelerate passivation.
And (3) checking:
(1) after the ferrous sulfide was reacted in a passivating deodorant (beaker) for 6 hours, it was removed;
(2) filtering the passivating agent and (ferrous sulfide) sulfate (iron) in the beaker by using a filter screen, and pouring the filtered passivating agent and (ferrous sulfide) sulfate (iron) into another beaker;
(3) the filtered residue is dried and placed in a natural ventilation place (container) for observing reaction;
(4) after 2 hours of residue, no exotherm was observed, indicating that passivation was complete.
Results: the detection result shows that ferrous sulfide is converted into stable compound (sulfate) after being treated by the passivating agent, so that the heat release function of the passivating agent in contact with air is lost, the inherent function of the passivating deodorant is achieved, and the total effective rate of the passivating agent is 100%.
3. Corrosion of metals
The following was calculated from the above test values:
1. corrosion rate
V=corrosion rate g/(m) 2 ·h)
m 1 Weight of metal coupon before soaking (g)
M 2 Weight of metal test piece after immersion (g)
S=surface area of metal test piece (m 2 )
t=metal test piece soaking time (h)
Calculation formula v= (m) 1 -m 2 )/(S·t)
m 1 ＝19.1347g
m 2 ＝19.1324g
S＝0.0028m 2
t＝8h
Substituting the formula to obtain V= (19.1347-19.1324)/(0.0028×8) =0.10 g/m 2 ·h
The corrosion rate is 0.10g/m 2 ·h
2. Total amount of corrosion
W=total corrosion (g/m) 2 )
V=corrosion rate (0.10 g/m) 2 h)
t=time (8 h)
Calculation formula w=v×t
Substitution formula w=0.10 g/m 2 ·h×8h＝0.80g/m 2
The total corrosion amount is 0.80g/m 2
Cleaning remark national standard, corrosion rate 6g/m 2 H, total corrosion amount 70g/m. The corrosion rate and the total corrosion amount of the agent are far lower than the national standard.
Effect example
After filling water into the equipment (device) to be cleaned and related systems, the ferrous sulfide passivation deodorant prepared in the example 4 is added in an amount of 5-15wt% while circulating, the ferrous sulfide passivation deodorant circulates for 2-9h in the temperature range of 20-50 ℃, and the circulated waste liquid is treated and discharged in an environment-friendly way.
Wherein, the performance and the passivation and deodorization effect indexes of the ferrous sulfide passivation and deodorization agent are shown in the following table:
in the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant points refer to the description of the method section.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. The ferrous sulfide passivation deodorant is characterized by comprising the following components in percentage by weight: 3-9% of surfactant, 5-10% of oxidant, 2-5% of corrosion inhibitor, 1-2% of chelating agent, 2-5% of stabilizer, 16-22% of pH regulator and the balance of deionized water.
2. A ferrous sulfide passivating deodorant according to claim 1, wherein said surfactant comprises coconut fatty acid diethanolamide and fatty alcohol polyoxyethylene ether.
3. A ferrous sulfide passivating deodorant according to claim 2, wherein the oxidizing agent is potassium ferrate.
4. A ferrous sulfide passivating deodorant according to claim 3, wherein said corrosion inhibitor is trisodium phosphate;
the chelating agent is tetrasodium ethylenediamine tetraacetate;
the stabilizer is sodium pyrosulfate;
the pH adjustor includes sodium hydroxide and sodium carbonate.
5. A ferrous sulfide passivating deodorant according to claim 4, wherein the deodorant comprises the following components in weight percent: 5-10% of potassium ferrate, 2-5% of sodium pyrosulfate, 1-2% of ethylene diamine tetraacetic acid, 1-2% of sodium carbonate, 2-5% of trisodium phosphate, 15-20% of sodium hydroxide, 1-4% of coconut oil fatty acid diethanolamide, 2-5% of fatty alcohol polyoxyethylene ether and the balance of deionized water.
6. A ferrous sulfide passivating deodorant according to claim 5, wherein the deodorant comprises the following components in weight percent: 8% of potassium ferrate, 4% of sodium pyrosulfate, 1% of ethylene diamine tetraacetic acid, 2% of sodium carbonate, 4% of trisodium phosphate, 18% of sodium hydroxide, 3% of coconut oil fatty acid diethanolamide, 4% of fatty alcohol polyoxyethylene ether and the balance of deionized water.
7. The preparation method of the ferrous sulfide passivation deodorant is characterized by comprising the following steps of:
(1) The ferrous sulfide passivation deodorant according to claim 5 or 6, wherein the raw materials are measured in percentage;
(2) Slowly adding the sodium hydroxide into water while stirring, adding other raw materials into the water while stirring according to the sequence of liquid before solid until the raw materials are completely dissolved, and cooling to obtain the ferrous sulfide passivation deodorant.
8. A method of using the ferrous sulfide passivating deodorant according to any one of claims 1-6 or the ferrous sulfide passivating deodorant prepared by the method of preparation of claim 7, comprising the steps of:
filling water into the cleaned equipment, and then adding ferrous sulfide passivation deodorant for passivation and deodorization while circulating.
9. The method of using a ferrous sulfide passivating deodorant according to claim 8, wherein the amount of the ferrous sulfide passivating deodorant added is 5-15wt% of the circulating water in the cleaning apparatus.
10. The method of claim 8, wherein the cycle time is 2-9 hours and the cycle temperature is 20-50 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311097515.3A CN117285961A (en) | 2023-08-29 | 2023-08-29 | Ferrous sulfide passivation deodorant and preparation method and application method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311097515.3A CN117285961A (en) | 2023-08-29 | 2023-08-29 | Ferrous sulfide passivation deodorant and preparation method and application method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117285961A true CN117285961A (en) | 2023-12-26 |
Family
ID=89239939
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311097515.3A Pending CN117285961A (en) | 2023-08-29 | 2023-08-29 | Ferrous sulfide passivation deodorant and preparation method and application method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117285961A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117866658A (en) * | 2024-03-11 | 2024-04-12 | 淄博康业环保科技有限公司 | Ferrous sulfide passivation deodorant and preparation method thereof |
| CN117866658B (en) * | 2024-03-11 | 2024-07-02 | 淄博康业环保科技有限公司 | Ferrous sulfide passivation deodorant and preparation method thereof |
-
2023
- 2023-08-29 CN CN202311097515.3A patent/CN117285961A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117866658A (en) * | 2024-03-11 | 2024-04-12 | 淄博康业环保科技有限公司 | Ferrous sulfide passivation deodorant and preparation method thereof |
| CN117866658B (en) * | 2024-03-11 | 2024-07-02 | 淄博康业环保科技有限公司 | Ferrous sulfide passivation deodorant and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS63502570A (en) | Compositions for encapsulating toxic metals and/or organic pollutants from waste | |
| CN106178865B (en) | Industrial furnace smoke heavy metal and the purification of fluorine chlorine sulphur nitre and resource utilization method | |
| CN105963902A (en) | Method for innocent treatment of arsenic sulfide residues | |
| CN117285961A (en) | Ferrous sulfide passivation deodorant and preparation method and application method thereof | |
| CN109095586A (en) | A kind of cupric mixed-metal oxides/sodium peroxydisulfate system and its application | |
| DE602004003464T2 (en) | Process for the treatment of spent ion exchangers | |
| CN114427098A (en) | Cleaning agent for high-sulfur natural gas purification device | |
| CN111524633B (en) | Volume reduction treatment method for radioactive organic waste | |
| KR20060088610A (en) | Dispersion compound and mixing compound for recycling sludge in sewage and wastewater | |
| CN108611646B (en) | Ferrous sulfide cleaning passivator | |
| CN113248028A (en) | Quenching tower salt ash softening agent in rotary kiln incineration process and application method | |
| CN113025445A (en) | Cleaning agent for cleaning high-temperature sintered metal filter | |
| JPH0123192B2 (en) | ||
| FI75594C (en) | ACHIEVEMENTS FOR THE PURPOSE OF OPERATION OF A CONTAINER OF A CONTAINER FOR THE PURPOSE OF A RESOLUTION, T.EX. ROEKGASSIDAN I EN VAERME- ELLER AONGPANNA. | |
| JP5887003B1 (en) | Method and apparatus for producing nitrate-containing hydrogen peroxide aqueous solution | |
| CN113171584B (en) | Iron removing liquid and method for removing iron ions of high-boiling residues of VCM device | |
| CN117488293A (en) | Ferrous sulfide cleaning passivating agent and preparation method thereof | |
| RU2306261C1 (en) | Process of local extractive purification of phenol-polluted spent solutions | |
| KR102643126B1 (en) | A method of treating sewage sludge and landfill cover soil composition including the sewage sludge treated by the method | |
| CN115637174B (en) | Composite ferrous sulfide passivating agent and preparation method thereof | |
| RU2714066C1 (en) | Method of recycling liquid chromium wastes | |
| CN118291211A (en) | Industrial cleaning agent | |
| US3773910A (en) | Preparation of solid composition of matter containing large percentages of sulfuric acid | |
| JPH01293187A (en) | Treatment of spent chemical cleaning solution | |
| JP2767367B2 (en) | Treatment method for wastewater containing ammonia nitrogen |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |