WO2019151884A1 - Utilisation de n,n-diméthyl-para-anizidine en tant qu'inhibiteur de corrosion par sulfure d'hydrogène et de fragilisation par l'hydrogène - Google Patents
Utilisation de n,n-diméthyl-para-anizidine en tant qu'inhibiteur de corrosion par sulfure d'hydrogène et de fragilisation par l'hydrogène Download PDFInfo
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- WO2019151884A1 WO2019151884A1 PCT/RU2017/000883 RU2017000883W WO2019151884A1 WO 2019151884 A1 WO2019151884 A1 WO 2019151884A1 RU 2017000883 W RU2017000883 W RU 2017000883W WO 2019151884 A1 WO2019151884 A1 WO 2019151884A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- corrosion
- inhibitor
- hydrocarbon
- hydrogen
- hydrogen sulfide
- Prior art date
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- 230000007797 corrosion Effects 0.000 title claims abstract description 78
- 238000005260 corrosion Methods 0.000 title claims abstract description 78
- 239000003112 inhibitor Substances 0.000 title claims abstract description 61
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 title claims abstract description 28
- 229910000037 hydrogen sulfide Inorganic materials 0.000 title claims abstract description 25
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 19
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 19
- 239000001257 hydrogen Substances 0.000 title claims abstract description 19
- ZTKDMNHEQMILPE-UHFFFAOYSA-N 4-methoxy-n,n-dimethylaniline Chemical compound COC1=CC=C(N(C)C)C=C1 ZTKDMNHEQMILPE-UHFFFAOYSA-N 0.000 title claims abstract description 7
- 239000004215 Carbon black (E152) Substances 0.000 claims abstract description 23
- 229930195733 hydrocarbon Natural products 0.000 claims abstract description 20
- 150000002430 hydrocarbons Chemical class 0.000 claims abstract description 20
- 239000007789 gas Substances 0.000 claims abstract description 11
- 239000002904 solvent Substances 0.000 claims description 9
- 238000007670 refining Methods 0.000 claims description 5
- 238000005086 pumping Methods 0.000 claims description 3
- 239000002184 metal Substances 0.000 abstract description 13
- 229910052751 metal Inorganic materials 0.000 abstract description 13
- 150000001805 chlorine compounds Chemical class 0.000 abstract description 9
- 150000002739 metals Chemical class 0.000 abstract description 6
- 150000001875 compounds Chemical class 0.000 abstract description 4
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 abstract description 2
- 229910052717 sulfur Inorganic materials 0.000 abstract description 2
- 239000011593 sulfur Substances 0.000 abstract description 2
- 238000012360 testing method Methods 0.000 description 16
- 229910000831 Steel Inorganic materials 0.000 description 15
- 239000002609 medium Substances 0.000 description 15
- 239000010959 steel Substances 0.000 description 15
- 239000003921 oil Substances 0.000 description 13
- 239000000243 solution Substances 0.000 description 13
- 230000000694 effects Effects 0.000 description 8
- -1 nitrogen-containing organic compounds Chemical class 0.000 description 8
- 230000001681 protective effect Effects 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 6
- 239000012153 distilled water Substances 0.000 description 6
- 239000000047 product Substances 0.000 description 6
- 239000013543 active substance Substances 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- 238000003860 storage Methods 0.000 description 5
- 238000002474 experimental method Methods 0.000 description 4
- 239000012535 impurity Substances 0.000 description 4
- 239000012071 phase Substances 0.000 description 4
- 238000011160 research Methods 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 3
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 3
- 150000001412 amines Chemical class 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 238000005984 hydrogenation reaction Methods 0.000 description 3
- RAXXELZNTBOGNW-UHFFFAOYSA-N imidazole Natural products C1=CNC=N1 RAXXELZNTBOGNW-UHFFFAOYSA-N 0.000 description 3
- 239000003350 kerosene Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 150000003464 sulfur compounds Chemical class 0.000 description 3
- 239000012224 working solution Substances 0.000 description 3
- FAXDZWQIWUSWJH-UHFFFAOYSA-N 3-methoxypropan-1-amine Chemical compound COCCCN FAXDZWQIWUSWJH-UHFFFAOYSA-N 0.000 description 2
- QUSNBJAOOMFDIB-UHFFFAOYSA-N Ethylamine Chemical compound CCN QUSNBJAOOMFDIB-UHFFFAOYSA-N 0.000 description 2
- 229910019142 PO4 Inorganic materials 0.000 description 2
- 150000001298 alcohols Chemical class 0.000 description 2
- 230000002528 anti-freeze Effects 0.000 description 2
- 239000012736 aqueous medium Substances 0.000 description 2
- 239000006227 byproduct Substances 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 239000003792 electrolyte Substances 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- VKYKSIONXSXAKP-UHFFFAOYSA-N hexamethylenetetramine Chemical compound C1N(C2)CN3CN1CN2C3 VKYKSIONXSXAKP-UHFFFAOYSA-N 0.000 description 2
- 230000007062 hydrolysis Effects 0.000 description 2
- 238000006460 hydrolysis reaction Methods 0.000 description 2
- 230000002401 inhibitory effect Effects 0.000 description 2
- 239000007791 liquid phase Substances 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 2
- 239000010452 phosphate Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- UMGDCJDMYOKAJW-UHFFFAOYSA-N thiourea Chemical compound NC(N)=S UMGDCJDMYOKAJW-UHFFFAOYSA-N 0.000 description 2
- JFXDIXYFXDOZIT-UHFFFAOYSA-N 4-methoxy-n-methylaniline Chemical compound CNC1=CC=C(OC)C=C1 JFXDIXYFXDOZIT-UHFFFAOYSA-N 0.000 description 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical class N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 1
- OKIZCWYLBDKLSU-UHFFFAOYSA-M N,N,N-Trimethylmethanaminium chloride Chemical compound [Cl-].C[N+](C)(C)C OKIZCWYLBDKLSU-UHFFFAOYSA-M 0.000 description 1
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Natural products NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 150000003973 alkyl amines Chemical class 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
- 125000003277 amino group Chemical group 0.000 description 1
- 239000002518 antifoaming agent Substances 0.000 description 1
- 150000001735 carboxylic acids Chemical class 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 238000004517 catalytic hydrocracking Methods 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000006482 condensation reaction Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000032798 delamination Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000005474 detonation Methods 0.000 description 1
- 125000000118 dimethyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 125000002485 formyl group Chemical class [H]C(*)=O 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 239000003502 gasoline Substances 0.000 description 1
- 239000004312 hexamethylene tetramine Substances 0.000 description 1
- 235000010299 hexamethylene tetramine Nutrition 0.000 description 1
- 150000002462 imidazolines Chemical class 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 125000000896 monocarboxylic acid group Chemical group 0.000 description 1
- 150000002903 organophosphorus compounds Chemical class 0.000 description 1
- BHAAPTBBJKJZER-UHFFFAOYSA-N p-anisidine Chemical compound COC1=CC=C(N)C=C1 BHAAPTBBJKJZER-UHFFFAOYSA-N 0.000 description 1
- 239000002574 poison Substances 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 229920000768 polyamine Polymers 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 150000003141 primary amines Chemical class 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000012552 review Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 150000003335 secondary amines Chemical class 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000010561 standard procedure Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000009885 systemic effect Effects 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 150000003512 tertiary amines Chemical class 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- YMBCJWGVCUEGHA-UHFFFAOYSA-M tetraethylammonium chloride Chemical compound [Cl-].CC[N+](CC)(CC)CC YMBCJWGVCUEGHA-UHFFFAOYSA-M 0.000 description 1
- 238000004448 titration Methods 0.000 description 1
- 239000012808 vapor phase Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 230000004580 weight loss Effects 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F11/00—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent
- C23F11/08—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids
- C23F11/10—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids using organic inhibitors
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F11/00—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent
- C23F11/08—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids
- C23F11/10—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids using organic inhibitors
- C23F11/14—Nitrogen-containing compounds
- C23F11/141—Amines; Quaternary ammonium compounds
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
- C09K8/52—Compositions for preventing, limiting or eliminating depositions, e.g. for cleaning
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F11/00—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent
- C23F11/08—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids
- C23F11/10—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids using organic inhibitors
- C23F11/14—Nitrogen-containing compounds
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K2208/00—Aspects relating to compositions of drilling or well treatment fluids
- C09K2208/20—Hydrogen sulfide elimination
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K2208/00—Aspects relating to compositions of drilling or well treatment fluids
- C09K2208/32—Anticorrosion additives
Definitions
- the invention relates to the oil and gas industry, in particular, to an inhibitor of hydrogen sulfide corrosion in water-hydrocarbon and hydrocarbon aggressive environments with a high content of sulfur-containing compounds, including hydrogen sulfide, chlorides and other factors of corrosion activity to protect metal equipment and pipelines from corrosion and hydrogen embrittlement.
- nitrogen-containing organic compounds such as C4-CU alkylamines, polyamines and other imidazole, organic ammonia derivatives such as amines (ethylamine, hexamethylenetetramine) or their salts such as tetramethylammonium chloride, tetraethylammonium chloride, a mixture of alkylbenzyl dimethyl ammonium chloride, A. Levin, Metal Corrosion Inhibitors, Edited by L. I. Antropov, L. Chemistry, 1968, pp. 7-12, 130 and 95), on the basis of which, well-known inhibitors of hydrogen sulfide corrosion have been produced for quite some time.
- organic ammonia derivatives such as amines (ethylamine, hexamethylenetetramine) or their salts such as tetramethylammonium chloride, tetraethylammonium chloride, a mixture of alkylbenzyl dimethyl ammonium chloride, A
- compositions with high inhibitory properties are being developed on the basis of the tertiary amine of monoalkyl phosphate, dialkyl phosphate, demulsifier, antifoam and solvent [RU 2591923 "Inhibitor of hydrogen sulfide corrosion and hydrogenation" A. Boldyrev et al.].
- amido-imidazoline inhibitors are the most common secondary amines used in the field of hydrogen sulfide corrosion and are considered the most effective.
- NflMIIA N, N-dimethyl-para-anisidine
- the objective of the claimed invention is the development of an inhibitor of hydrogen sulfide corrosion and hydrogen embrittlement, which provides high anticorrosion properties in aggressive environments with a high content of hydrogen sulfide, chlorides and other factors of corrosion activity.
- the technical result of the invention is to reduce the rate of corrosion and hydrogen embrittlement of metals in hydrogen sulfide-containing environments.
- NNflMIIA is used as an inhibitor of hydrogen sulfide corrosion and hydrogen embrittlement in aqueous, aqueous hydrocarbon and hydrocarbon aggressive environments containing hydrogen sulfide, chlorides, to protect metals from corrosion and hydrogen embrittlement.
- IIDMPA is used individually or in the form of a solution with a solvent, the content of which, preferably, from May 15 to 85. %, depending on the technology of introduction and operating conditions.
- a solvent preferably, toluene, xylene, alcohols, various solvents and hydrocarbon fractions can be used to ensure the commodity form, manufacturability of the introduction and dosage of the inhibitor under operating conditions.
- Corrosion inhibitor is used for protection against corrosion of oil refining equipment.
- Corrosion inhibitor is used to protect against corrosion of oil pipelines, gas pipelines, tanks for transportation and storage of hydrocarbons, pumping equipment and valves.
- Corrosion inhibitor is used for protection against corrosion of metal products, technological equipment operating in water and water-soluble environments.
- the effective concentration of the corrosion inhibitor is in the range of 1-50 ppm relative to the aggressive environment.
- NNflMIIA As an inhibitor of hydrogen sulfide corrosion and hydrogen embrittlement in aqueous, aqueous hydrocarbon and hydrocarbon aggressive environments containing hydrogen sulfide, chlorides, an aggressive medium was taken and mixed with NNflMllA, while ensuring the dissolution and / or distribution of NNflMIIA by volume, in an effective concentration .
- NNbMPA is used in pure form or as a solution in a solvent, with the content of NNflMllA in solution, preferably in an amount of 15-85% of May.
- hydrocarbon and water-hydrocarbon aggressive environment oil, oil fractions, hydrocarbon fractions, marketable products based on hydrocarbon raw materials and their derivatives, which contain or may contain hydrogen sulfide, sulfur compounds, chlorides and other impurities that lead to metal corrosion during its processing and / or operation.
- aqueous aggressive medium water, water-alcohol solutions, solutions based on ethylene glycol (antifreeze, antifreeze), which contain or may contain hydrogen sulfide, sulfur compounds, chlorides and other impurities that lead to corrosion of metals during its processing and / or operation .
- Corrosion inhibitor is used for protection against corrosion of oil refining equipment.
- Corrosion inhibitor is used to protect against corrosion of oil pipelines, gas pipelines, tanks for transportation and storage of hydrocarbons, pumping equipment and valves.
- concentration of the corrosion inhibitor is in the range of 5ppm - 50 ppm with respect to the medium, depending on its corrosivity and objectives.
- NNAMPA was introduced both individually and in a mixture with solvents (commodity form).
- Aggressive medium was a two-phase hydrocarbon system (kerosene) - distilled water (9: 1), simulating a corrosive medium in oil refining plants.
- the aggressive medium (electrolyte) contained 450 ml of kerosene according to GOST 10227-86 and 50 ml of distilled water, which was saturated with hydrogen sulfide.
- HCI and Na 2 S were introduced into distilled water in such a way that 1800 ppm H 2 S was formed during its hydrolysis in the liquid phase.
- the pH of the resulting solution was maintained in the range of 5, 5-6, 5 using a neutralizer (such as methoxypropylamine (MOPA) or others).
- a neutralizer such as methoxypropylamine (MOPA) or others.
- MOPA methoxypropylamine
- a U-shaped glass vessel was used according to GOST 9.506-87 equipped with a “jacket” for heating and temperature control.
- the test medium is circulated by a high-speed mixer, which ensures a uniform flow of fluid.
- the flow rate was set to 1 m / s.
- ml is the mass of the sample before the test, g;
- m2 is the mass of the sample after the test, g;
- the protective effect of the inhibitor (Z) was calculated by the formula: 100
- the range of effective concentrations is 1 - 50 ppm.
- An aggressive medium was a solution simulating a gas condensate field medium prepared on the basis of distilled water and the introduction of 0.5% NaCI, 0.25 g / L acetic acid (CH 3 COOH) at a concentration providing a pH of 3.4–3.6. Studies were carried out at various concentrations of H 2 S, the content of which was controlled by standard iodometric titration according to GOST 22387.2-97. The effect of inhibitors on steel corrosion was determined by the gravimetric method according to the weight loss of samples on steel plates with an area of (S) of 8.4 cm 2 and 18 cm 2 for St.08ps and St.70S2XA, respectively. Samples were weighed on an analytical balance to an accuracy of 10 6 g.
- Corrosion tests in the liquid phase were carried out at room temperature in a U-shaped glass vessel according to GOST 9.506-87 equipped with a “jacket” for heating and temperature control.
- the medium was circulated by a high-speed mixer, providing a uniform liquid flow.
- the flow rate was set to 1 m / s.
- the duration of the experiment was 1.5 hours, and the inhibitor concentration in the working solution was 25 ppm and 50 ppm (25 mg / L and 50 mg / L).
- the duration of the experiment was 240 h, and the inhibitor concentration in the working solution was 2000 ppm and 4000 ppm (2 g / l and 4 g / l).
- the corrosion rate (K) was estimated by mass loss (Am) according to formula 1, and the protective effect of the inhibitor (Z) was calculated according to formula 2.
- n 0 is the number of kinks of the samples in the initial state
- C is the concentration of inhibitor
- k is the corrosion rate
- z is a protective effect
- Comparison sample Ns 3 - Amine amide (industrial sample) at the claimed 50% concentration of the active substance.
- k is the corrosion rate
- z is a protective effect
- k is the corrosion rate
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Preventing Corrosion Or Incrustation Of Metals (AREA)
Abstract
L'invention concerne l'industrie pétrolière et gazière et notamment un inhibiteur de la corrosion par sulfure d'hydrogène dans des milieux agressifs d'hydrocarbures et au ou d'hydrocarbures simples, avec une teneur élevée en composés sulfurés, y compris en sulfure d'hydrogène, en chlorures ou en d'autres facteurs d'activité corrosive pour protéger les équipements métalliques et les tuyauteries contre la corrosion et la fragilisation par l'hydrogène. Le résultat technique consiste à réduire la vitesse de corrosion et la fragilisation par l'hydrogène dans des milieux de sulfure d'hydrogène. Utilisation de N,N-diméthyl-para-anizidine en tant qu'inhibiteur de corrosion par sulfure d'hydrogène et la fragilisation par l'hydrogène dans des milieux agressifs d'hydrocarbures et au ou d'hydrocarbures simples contenant du sulfure d'hydrogène.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RU2017141337A RU2667265C1 (ru) | 2018-02-05 | 2018-02-05 | Применение n,n-диметил-пара-анизидина в качестве ингибитора сульфоводородной коррозии и водородного охрупчивания |
| RU2017141337 | 2018-02-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2019151884A1 true WO2019151884A1 (fr) | 2019-08-08 |
Family
ID=63580332
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/RU2017/000883 WO2019151884A1 (fr) | 2018-02-05 | 2018-02-05 | Utilisation de n,n-diméthyl-para-anizidine en tant qu'inhibiteur de corrosion par sulfure d'hydrogène et de fragilisation par l'hydrogène |
Country Status (2)
| Country | Link |
|---|---|
| RU (1) | RU2667265C1 (fr) |
| WO (1) | WO2019151884A1 (fr) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2723123C1 (ru) * | 2019-05-07 | 2020-06-08 | Общество с ограниченной ответственностью «ИФОТОП» | Применение амидов, являющихся продуктами конденсации анизидина или его производных с нафтеновой кислотой в качестве ингибитора коррозии и водородного охрупчивания |
| WO2021225462A1 (fr) * | 2020-05-08 | 2021-11-11 | Общество С Ограниченной Ответственностью "Ифотоп " | Utilisation de dérivés d'anisidine en qualité d'inhibiteur de corrosion et de fragilisation par hydrogène |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2472774C1 (ru) * | 2011-09-28 | 2013-01-20 | Закрытое Акционерное Общество "Ифохим" | Способ селективного получения n-метил-пара-анизидина |
| EP2014643B1 (fr) * | 2006-04-12 | 2013-11-20 | Zao "Ifokhim" | Derives de para-methoxyanilines augmentant le pouvoir antidetonant de carburants hydrocarbonés et compositions sur leur base |
| RU2508288C1 (ru) * | 2012-07-31 | 2014-02-27 | Закрытое Акционерное Общество "Ифохим" | Способ селективного получения n-метил-пара-анизидина |
| CN107011193A (zh) * | 2017-05-09 | 2017-08-04 | 中国科学院兰州化学物理研究所 | 一种制备n‑甲基对甲氧基苯胺的方法 |
-
2018
- 2018-02-05 RU RU2017141337A patent/RU2667265C1/ru active
- 2018-02-05 WO PCT/RU2017/000883 patent/WO2019151884A1/fr active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2014643B1 (fr) * | 2006-04-12 | 2013-11-20 | Zao "Ifokhim" | Derives de para-methoxyanilines augmentant le pouvoir antidetonant de carburants hydrocarbonés et compositions sur leur base |
| RU2472774C1 (ru) * | 2011-09-28 | 2013-01-20 | Закрытое Акционерное Общество "Ифохим" | Способ селективного получения n-метил-пара-анизидина |
| RU2508288C1 (ru) * | 2012-07-31 | 2014-02-27 | Закрытое Акционерное Общество "Ифохим" | Способ селективного получения n-метил-пара-анизидина |
| CN107011193A (zh) * | 2017-05-09 | 2017-08-04 | 中国科学院兰州化学物理研究所 | 一种制备n‑甲基对甲氧基苯胺的方法 |
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| RU2667265C1 (ru) | 2018-09-18 |
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