EP4055380A1 - Méthode d'identification et de quantification de peroxydes dans des matrices pétrolières - Google Patents
Méthode d'identification et de quantification de peroxydes dans des matrices pétrolièresInfo
- Publication number
- EP4055380A1 EP4055380A1 EP20797511.1A EP20797511A EP4055380A1 EP 4055380 A1 EP4055380 A1 EP 4055380A1 EP 20797511 A EP20797511 A EP 20797511A EP 4055380 A1 EP4055380 A1 EP 4055380A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- petroleum
- oxide
- petroleum matrix
- methyl
- oxidation
- 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
- 239000003208 petroleum Substances 0.000 title claims abstract description 44
- 238000000034 method Methods 0.000 title claims abstract description 31
- 150000002978 peroxides Chemical class 0.000 title description 3
- 230000003647 oxidation Effects 0.000 claims abstract description 40
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 40
- 239000011159 matrix material Substances 0.000 claims abstract description 37
- 239000002243 precursor Substances 0.000 claims abstract description 34
- 239000000203 mixture Substances 0.000 claims abstract description 16
- 150000001875 compounds Chemical class 0.000 claims abstract description 15
- VCUVETGKTILCLC-UHFFFAOYSA-N 5,5-dimethyl-1-pyrroline N-oxide Chemical compound CC1(C)CCC=[N+]1[O-] VCUVETGKTILCLC-UHFFFAOYSA-N 0.000 claims abstract description 13
- SQDFHQJTAWCFIB-UHFFFAOYSA-N n-methylidenehydroxylamine Chemical group ON=C SQDFHQJTAWCFIB-UHFFFAOYSA-N 0.000 claims abstract description 11
- OKCDBZSDRSXFIB-UHFFFAOYSA-N 2-diethoxyphosphoryl-2-methyl-1-oxido-3,4-dihydropyrrol-1-ium Chemical compound CCOP(=O)(OCC)C1(C)CCC=[N+]1[O-] OKCDBZSDRSXFIB-UHFFFAOYSA-N 0.000 claims abstract description 10
- KLANKJVXTGUBGT-UHFFFAOYSA-N 2-methyl-1-oxido-3,4-dihydropyrrol-1-ium-2-carboxamide Chemical compound NC(=O)C1(C)CCC=[N+]1[O-] KLANKJVXTGUBGT-UHFFFAOYSA-N 0.000 claims abstract description 10
- IIPNDONTVPDUFZ-UHFFFAOYSA-N ethyl 2-methyl-1-oxido-3,4-dihydropyrrol-1-ium-2-carboxylate Chemical compound CCOC(=O)C1(C)CCC=[N+]1[O-] IIPNDONTVPDUFZ-UHFFFAOYSA-N 0.000 claims abstract description 10
- IYSYLWYGCWTJSG-UHFFFAOYSA-N n-tert-butyl-1-phenylmethanimine oxide Chemical compound CC(C)(C)[N+]([O-])=CC1=CC=CC=C1 IYSYLWYGCWTJSG-UHFFFAOYSA-N 0.000 claims abstract description 6
- 238000004458 analytical method Methods 0.000 claims description 15
- 230000015572 biosynthetic process Effects 0.000 claims description 11
- 238000010438 heat treatment Methods 0.000 claims description 11
- 230000005298 paramagnetic effect Effects 0.000 claims description 9
- 238000011002 quantification Methods 0.000 claims description 5
- -1 iron ions Chemical class 0.000 claims description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims description 3
- LZKLAOYSENRNKR-LNTINUHCSA-N iron;(z)-4-oxoniumylidenepent-2-en-2-olate Chemical compound [Fe].C\C(O)=C\C(C)=O.C\C(O)=C\C(C)=O.C\C(O)=C\C(C)=O LZKLAOYSENRNKR-LNTINUHCSA-N 0.000 claims description 3
- 229910021645 metal ion Inorganic materials 0.000 claims description 3
- 238000009281 ultraviolet germicidal irradiation Methods 0.000 claims description 3
- 229930195733 hydrocarbon Natural products 0.000 claims description 2
- 150000002430 hydrocarbons Chemical class 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims 1
- 238000004435 EPR spectroscopy Methods 0.000 abstract 1
- 150000003254 radicals Chemical class 0.000 description 12
- 150000002432 hydroperoxides Chemical class 0.000 description 8
- 238000006701 autoxidation reaction Methods 0.000 description 7
- 239000002199 base oil Substances 0.000 description 7
- 239000000047 product Substances 0.000 description 6
- 238000001228 spectrum Methods 0.000 description 6
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 4
- 230000032683 aging Effects 0.000 description 4
- 125000003545 alkoxy group Chemical group 0.000 description 4
- 229940097156 peroxyl Drugs 0.000 description 4
- 230000015556 catabolic process Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000006731 degradation reaction Methods 0.000 description 3
- 230000001050 lubricating effect Effects 0.000 description 3
- JPVYNHNXODAKFH-UHFFFAOYSA-N Cu2+ Chemical compound [Cu+2] JPVYNHNXODAKFH-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 229910001431 copper ion Inorganic materials 0.000 description 2
- FGUGLVHWMKDRRL-UHFFFAOYSA-N copper methyl 3-oxoicosanoate Chemical compound [Cu+2].O=C(CC(=O)OC)CCCCCCCCCCCCCCCCC FGUGLVHWMKDRRL-UHFFFAOYSA-N 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000005291 magnetic effect Effects 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 239000007857 degradation product Substances 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 239000008240 homogeneous mixture Substances 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000010408 sweeping Methods 0.000 description 1
- 238000003260 vortexing Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/26—Oils; Viscous liquids; Paints; Inks
- G01N33/28—Oils, i.e. hydrocarbon liquids
- G01N33/2805—Oils, i.e. hydrocarbon liquids investigating the resistance to heat or oxidation
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N24/00—Investigating or analyzing materials by the use of nuclear magnetic resonance, electron paramagnetic resonance or other spin effects
- G01N24/10—Investigating or analyzing materials by the use of nuclear magnetic resonance, electron paramagnetic resonance or other spin effects by using electron paramagnetic resonance
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/20—Arrangements or instruments for measuring magnetic variables involving magnetic resonance
- G01R33/60—Arrangements or instruments for measuring magnetic variables involving magnetic resonance using electron paramagnetic resonance
Definitions
- the present application relates to a method for the identification and quantification of peroxides in petroleum matrices.
- Autoxidation is the main mechanism of degradation of petroleum matrices such as base oils or formulated lubricants.
- the autoxidation reactions in petroleum matrices are responsible for the formation in particular of hydroperoxides (oxidation products of the ROOH type) which will degrade (in the form of ketone, acid, ester, etc.).
- hydroperoxides oxidation products of the ROOH type
- the condensation of these hydroperoxide degradation products generate molecules of high molecular weight which increase the viscosity of petroleum matrices.
- the presence of acid makes said petroleum matrices corrosive.
- EPR electronic paramagnetic resonance
- peroxyls During the autoxidation reaction, peroxyls (ROO °) are formed quickly and slowly turn into hydroperoxides (oxidation product). These peroxyls (oxidation precursors) are radical species that are detectable by electronic paramagnetic resonance (EPR). However, the lifetime of peroxyl radicals is short, which makes their analysis and detection particularly difficult.
- EPR electronic paramagnetic resonance
- Another objective of the invention is also to provide such a method which is universal, that is to say which can be applied regardless of the petroleum matrix.
- DMPO 2,2-dimethyl-3,4-dihydro-2H-pyrrole-1 - oxide
- PBN alphaphenyl-N-tert -butyl-nitrone
- DEPMPO diethoxyphosphoryl
- EMPO ethoxycarbonyl-5-methyl-1 -pyrroline-N-oxide
- AMPO 5-carbamoyl -5-methyl-1 -pyrroline-N-oxide
- the present application relates to a method for identifying and quantifying oxidation precursors in a petroleum matrix comprising the following steps:
- DMPO 2,2-dimethyl-3,4-dihydro-2H-pyrrole-1 - oxide
- PBN alphaphenyl-N-tert -butyl-nitrone
- DEPMPO diethoxyphosphoryl
- EMPO ethoxycarbonyl-5-methyl-1 -pyrroline-N-oxide
- AMPO 5-carbamoyl -5-methyl-1 -pyrroline-N-oxide
- the compounds comprising a nitrone function are chosen from the group consisting of: DMPO (2,2-dimethyl-3,4-dihydro-2H-pyrrole-1 -oxide), PBN ( alphaphenyl-N-tert-butyl- nitrone), DEPMPO (5- (diethoxyphosphoryl) -5-methyl-1-pyrroline N-oxide), EMPO (5- ethoxycarbonyl-5-methyl-1 -pyrroline-N-oxide), AMPO (5-carbamoyl-5-methyl-1 - pyrroline-N-oxide), preferably the compound is DMPO.
- EPR electronic paramagnetic resonance
- the method of the present invention is based on the following principle: the RPE analysis consists in recording the RPE spectrum of a sample of petroleum matrix over a narrow field range (between 3400 and 3500 G).
- the oxidation precursors will react with the compound comprising a nitrone function to form a radical adduct which will be able to be detected by RPE and having a longer lifespan than the oxidation precursor, thus allowing stability during the time of analysis (spin trap method).
- the method of the invention makes it possible to determine the nature and concentration of oxidation precursor intrinsic to the petroleum matrix, that is to say which are initially in the petroleum matrix.
- petroleum matrix means compositions comprising a mixture of hydrocarbons, mention may in particular be made of crude oil, base oils used in particular in lubricating compositions, lubricating compositions, bitumens, preferably base oils and lubricating compositions.
- the amount of compounds comprising a nitrone function used is between 1 and 500 mM, preferably between 50 and 100 mM.
- the oxidation precursors can be the peroxyls formed during autoxidation and which by a slow reaction produce the hydroperoxides (oxidation product).
- Autoxidation can be accelerated (thus corresponding to a aging of the petroleum matrix) in order to be able to accumulate hydroperoxides, in particular by heating the petroleum matrix in the presence of oxygen, the hydroperoxides thus created can be transformed into peroxyl (ROO °) or alkoxyl (RO °) radicals (oxidation precursors ) and be detected and quantified by the method of the invention.
- the present invention relates in a first embodiment to a method for identifying and quantifying oxidation precursors in a petroleum matrix comprising the following steps:
- the oxidation precursors are peroxyls
- step 2 the analysis of step 2 is carried out at room temperature, in particular between 15 and 25 ° C.
- the present invention also relates, in a second embodiment, to a method for identifying and quantifying oxidation precursors in a petroleum matrix comprising the following steps: a) Heating the petroleum matrix to a temperature between 100 and 200 ° C, preferably 140 ° C; b) Step of formation of oxidation precursors;
- step b) Addition to the petroleum matrix in step b) of at least one compound comprising a nitrone function, in particular those mentioned above, and formation of a radical adduct;
- Step a) which represents a step of aging the matrix, can for example be carried out under an air flow.
- Step a) can in particular have a duration of 1 to 2 hours.
- Step a) corresponds to aging of the petroleum matrix. By virtue of this step, it is possible to accelerate the autoxidation and consequently to accumulate the hydroperoxides formed.
- step b) it is necessary to transform these compounds into oxidation precursors. This can be done according to step b) by any technique known to those skilled in the art and in particular:
- metal ions in particular iron ions, for example Fe (acac) 3; or copper ions, for example copper (II) methyl-3-oxoeicosanoate;
- the petroleum matrix is allowed to return to ambient temperature (between 20 and 25 ° C.).
- the oxidation precursors formed are peroxyls, alkoxyls or carbon-centered.
- step 2 the analysis of step 2 is carried out at ambient temperature, in particular between 15 and 25 ° C or with heating in a temperature gradient between 20 and 140 ° C or by heating at a fixed temperature between 25 and 140 ° C.
- step 3 is performed in a manner known to those skilled in the art.
- the nature of the oxidation precursor peroxyls, alkoxyls, carbocentred radicals
- the rate of oxidation precursors can be deduced from the intensity of the peaks (integral).
- Another object of the present invention also relates to a method for determining the stability of a petroleum matrix and its propensity to oxidize, comprising the following steps: a) Heating the petroleum matrix to a temperature between 100 and 200 ° C. , preferably at 140 ° C; b) oxidation precursor formation step; c) Implementation of steps 1 to 3 of the above method.
- Step a) can for example be carried out under air flow.
- Step a) can in particular last from 1 to 2 hours.
- Step a) corresponds to aging of the petroleum matrix. From this step, it is possible to accelerate the autoxidation and consequently to accumulate the hydroperoxides formed. For analysis, it is necessary to transform these compounds into radicals (oxidation precursors). This can be done according to step b) by any technique known to those skilled in the art and in particular:
- metal ions in particular iron ions, for example Fe (acac) 3; or copper ions, for example copper (II) methyl-3-oxoeicosanoate; or
- the petroleum matrix is allowed to return to ambient temperature (between 20 and 25 ° C.).
- Figure 1 shows the spectrum obtained by RPE (magnetic field as a function of temperature.
- Figure 2 represents the spectrum obtained by RPE (magnetic field as a function of temperature.
- a solution of 50 mM DMPO in a group IV HB1 base oil is prepared by vortexing and repeated pipetting. After obtaining a homogeneous mixture, 1 ml of this mixture is taken and placed in a 5 mm tube of RPE and placed in the RPE apparatus. The mixture is gradually heated and with the evolution of temperatures from 21 to 140 ° C the RPE spectra of the spin adducts formed were recorded.
- the RPE device used is a Bruker EMXnano RPE spectrometer operating at an X-band of 9.63 GHz with the following parameters:
- Modulation frequency 100 kHz
- Modulation amplitude 1.0 G
- FIG. 1 makes it possible to show the presence in HB1 of peroxyl (ROO °) at 21 and 50 ° C, and of carbon-centered radicals (R °) at 140 ° C.
- ROO ° peroxyl
- R ° carbon-centered radicals
- a group IV HB1 base oil (PAO synthetic base oil) is aged by heating at 140 ° C for 1 hour and 30 minutes under constant air flow.
- Example 1 The protocol of Example 1 is applied to old oil.
- Figure 2 shows the presence in HB1 of peroxyl (ROO °) between 21 and 90 ° C, alkoxyl (RO °) between 70 and 140 ° C and carbon-centered radicals (R °) after 90 ° C .
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- Biochemistry (AREA)
- Engineering & Computer Science (AREA)
- Pathology (AREA)
- Immunology (AREA)
- General Physics & Mathematics (AREA)
- General Health & Medical Sciences (AREA)
- Analytical Chemistry (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Medicinal Chemistry (AREA)
- Food Science & Technology (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- High Energy & Nuclear Physics (AREA)
- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1912364A FR3102853B1 (fr) | 2019-11-05 | 2019-11-05 | Méthode d’identification et de quantification de peroxydes dans des matrices pétrolières |
| PCT/EP2020/080757 WO2021089511A1 (fr) | 2019-11-05 | 2020-11-03 | Méthode d'identification et de quantification de peroxydes dans des matrices pétrolières |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4055380A1 true EP4055380A1 (fr) | 2022-09-14 |
Family
ID=69468838
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP20797511.1A Pending EP4055380A1 (fr) | 2019-11-05 | 2020-11-03 | Méthode d'identification et de quantification de peroxydes dans des matrices pétrolières |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP4055380A1 (fr) |
| FR (1) | FR3102853B1 (fr) |
| WO (1) | WO2021089511A1 (fr) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1032380A1 (ru) * | 1981-12-22 | 1983-07-30 | Организация Войсковая Часть 74242 | Способ классификации моторных масел и устройство дл его осуществлени |
| JPS62126337A (ja) * | 1985-11-27 | 1987-06-08 | Nippon Kueekaa Chem Kk | ラジカル捕捉剤の活性濃度の測定方法 |
| JPH0198950A (ja) * | 1987-10-12 | 1989-04-17 | Komatsu Ltd | 潤滑油の劣化度測定法 |
| JP4996575B2 (ja) * | 2007-11-15 | 2012-08-08 | ローム アンド ハース カンパニー | ニトロンの製造 |
| US9170250B2 (en) * | 2012-03-12 | 2015-10-27 | Baker Hughes Incorporated | Oilfield chemicals with attached spin probes |
-
2019
- 2019-11-05 FR FR1912364A patent/FR3102853B1/fr active Active
-
2020
- 2020-11-03 WO PCT/EP2020/080757 patent/WO2021089511A1/fr not_active Ceased
- 2020-11-03 EP EP20797511.1A patent/EP4055380A1/fr active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| FR3102853B1 (fr) | 2024-04-12 |
| FR3102853A1 (fr) | 2021-05-07 |
| WO2021089511A1 (fr) | 2021-05-14 |
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