CN114231141A - High-pressure salt-expelling film-forming agent and preparation method thereof - Google Patents
High-pressure salt-expelling film-forming agent and preparation method thereof Download PDFInfo
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- CN114231141A CN114231141A CN202210014039.3A CN202210014039A CN114231141A CN 114231141 A CN114231141 A CN 114231141A CN 202210014039 A CN202210014039 A CN 202210014039A CN 114231141 A CN114231141 A CN 114231141A
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- corrosion inhibitor
- forming agent
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- polyoxyethylene ether
- pressure salt
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- 238000002360 preparation method Methods 0.000 title abstract description 25
- -1 imidazoline compound Chemical class 0.000 claims abstract description 165
- 238000005260 corrosion Methods 0.000 claims abstract description 161
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 156
- 230000007797 corrosion Effects 0.000 claims abstract description 144
- 239000003112 inhibitor Substances 0.000 claims abstract description 126
- 229910019142 PO4 Inorganic materials 0.000 claims abstract description 108
- 229940051841 polyoxyethylene ether Drugs 0.000 claims abstract description 101
- 229920000056 polyoxyethylene ether Polymers 0.000 claims abstract description 101
- 239000002131 composite material Substances 0.000 claims abstract description 99
- 150000001412 amines Chemical class 0.000 claims abstract description 80
- 239000010452 phosphate Substances 0.000 claims abstract description 79
- 239000002994 raw material Substances 0.000 claims abstract description 64
- 150000005846 sugar alcohols Polymers 0.000 claims abstract description 38
- 150000003839 salts Chemical class 0.000 claims abstract description 15
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 claims description 82
- 239000002904 solvent Substances 0.000 claims description 67
- 239000002270 dispersing agent Substances 0.000 claims description 64
- HZAXFHJVJLSVMW-UHFFFAOYSA-N 2-Aminoethan-1-ol Chemical group NCCO HZAXFHJVJLSVMW-UHFFFAOYSA-N 0.000 claims description 58
- 229920005862 polyol Polymers 0.000 claims description 54
- 150000001408 amides Chemical class 0.000 claims description 48
- 239000012752 auxiliary agent Substances 0.000 claims description 47
- 150000001732 carboxylic acid derivatives Chemical class 0.000 claims description 47
- 238000002156 mixing Methods 0.000 claims description 45
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 claims description 41
- 230000003472 neutralizing effect Effects 0.000 claims description 33
- KWIUHFFTVRNATP-UHFFFAOYSA-N Betaine Natural products C[N+](C)(C)CC([O-])=O KWIUHFFTVRNATP-UHFFFAOYSA-N 0.000 claims description 32
- 229920002367 Polyisobutene Polymers 0.000 claims description 31
- KZNICNPSHKQLFF-UHFFFAOYSA-N succinimide Chemical compound O=C1CCC(=O)N1 KZNICNPSHKQLFF-UHFFFAOYSA-N 0.000 claims description 26
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims description 25
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 24
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 claims description 24
- WFKAJVHLWXSISD-UHFFFAOYSA-N isobutyramide Chemical compound CC(C)C(N)=O WFKAJVHLWXSISD-UHFFFAOYSA-N 0.000 claims description 24
- 230000002194 synthesizing effect Effects 0.000 claims description 24
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims description 23
- 229910052731 fluorine Inorganic materials 0.000 claims description 23
- 239000011737 fluorine Substances 0.000 claims description 23
- 239000002280 amphoteric surfactant Substances 0.000 claims description 20
- RPNUMPOLZDHAAY-UHFFFAOYSA-N Diethylenetriamine Chemical compound NCCNCCN RPNUMPOLZDHAAY-UHFFFAOYSA-N 0.000 claims description 19
- 150000001875 compounds Chemical class 0.000 claims description 19
- RAABOESOVLLHRU-UHFFFAOYSA-N diazene Chemical compound N=N RAABOESOVLLHRU-UHFFFAOYSA-N 0.000 claims description 19
- 229910000071 diazene Inorganic materials 0.000 claims description 19
- GHVNFZFCNZKVNT-UHFFFAOYSA-N decanoic acid Chemical compound CCCCCCCCCC(O)=O GHVNFZFCNZKVNT-UHFFFAOYSA-N 0.000 claims description 18
- 229960003237 betaine Drugs 0.000 claims description 17
- JRBPAEWTRLWTQC-UHFFFAOYSA-N dodecylamine Chemical compound CCCCCCCCCCCCN JRBPAEWTRLWTQC-UHFFFAOYSA-N 0.000 claims description 16
- 238000010438 heat treatment Methods 0.000 claims description 15
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims description 14
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 claims description 14
- POULHZVOKOAJMA-UHFFFAOYSA-N dodecanoic acid Chemical compound CCCCCCCCCCCC(O)=O POULHZVOKOAJMA-UHFFFAOYSA-N 0.000 claims description 14
- JBKVHLHDHHXQEQ-UHFFFAOYSA-N epsilon-caprolactam Chemical compound O=C1CCCCCN1 JBKVHLHDHHXQEQ-UHFFFAOYSA-N 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 14
- QGLWBTPVKHMVHM-KTKRTIGZSA-N (z)-octadec-9-en-1-amine Chemical compound CCCCCCCC\C=C/CCCCCCCCN QGLWBTPVKHMVHM-KTKRTIGZSA-N 0.000 claims description 13
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 13
- 235000021355 Stearic acid Nutrition 0.000 claims description 13
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims description 13
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims description 13
- 239000008117 stearic acid Substances 0.000 claims description 13
- 229960002317 succinimide Drugs 0.000 claims description 13
- 229940047889 isobutyramide Drugs 0.000 claims description 12
- VILCJCGEZXAXTO-UHFFFAOYSA-N 2,2,2-tetramine Chemical compound NCCNCCNCCN VILCJCGEZXAXTO-UHFFFAOYSA-N 0.000 claims description 11
- 229960001124 trientine Drugs 0.000 claims description 11
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 claims description 10
- 239000005632 Capric acid (CAS 334-48-5) Substances 0.000 claims description 9
- BTANRVKWQNVYAZ-UHFFFAOYSA-N butan-2-ol Chemical compound CCC(C)O BTANRVKWQNVYAZ-UHFFFAOYSA-N 0.000 claims description 8
- IOQPZZOEVPZRBK-UHFFFAOYSA-N octan-1-amine Chemical compound CCCCCCCCN IOQPZZOEVPZRBK-UHFFFAOYSA-N 0.000 claims description 8
- 229920002401 polyacrylamide Polymers 0.000 claims description 8
- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 claims description 8
- 239000003381 stabilizer Substances 0.000 claims description 8
- WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 claims description 7
- LQJBNNIYVWPHFW-UHFFFAOYSA-N 20:1omega9c fatty acid Natural products CCCCCCCCCCC=CCCCCCCCC(O)=O LQJBNNIYVWPHFW-UHFFFAOYSA-N 0.000 claims description 7
- QSBYPNXLFMSGKH-UHFFFAOYSA-N 9-Heptadecensaeure Natural products CCCCCCCC=CCCCCCCCC(O)=O QSBYPNXLFMSGKH-UHFFFAOYSA-N 0.000 claims description 7
- 239000005639 Lauric acid Substances 0.000 claims description 7
- 239000005642 Oleic acid Substances 0.000 claims description 7
- ZQPPMHVWECSIRJ-UHFFFAOYSA-N Oleic acid Natural products CCCCCCCCC=CCCCCCCCC(O)=O ZQPPMHVWECSIRJ-UHFFFAOYSA-N 0.000 claims description 7
- QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 0.000 claims description 7
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 claims description 7
- FAGUFWYHJQFNRV-UHFFFAOYSA-N tetraethylenepentamine Chemical compound NCCNCCNCCNCCN FAGUFWYHJQFNRV-UHFFFAOYSA-N 0.000 claims description 7
- FXHOOIRPVKKKFG-UHFFFAOYSA-N N,N-Dimethylacetamide Chemical compound CN(C)C(C)=O FXHOOIRPVKKKFG-UHFFFAOYSA-N 0.000 claims description 6
- 239000005711 Benzoic acid Substances 0.000 claims description 5
- 235000010233 benzoic acid Nutrition 0.000 claims description 5
- 238000006243 chemical reaction Methods 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 235000021313 oleic acid Nutrition 0.000 claims description 3
- TUNFSRHWOTWDNC-HKGQFRNVSA-N tetradecanoic acid Chemical compound CCCCCCCCCCCCC[14C](O)=O TUNFSRHWOTWDNC-HKGQFRNVSA-N 0.000 claims description 3
- KWIUHFFTVRNATP-UHFFFAOYSA-O N,N,N-trimethylglycinium Chemical compound C[N+](C)(C)CC(O)=O KWIUHFFTVRNATP-UHFFFAOYSA-O 0.000 claims 2
- 230000000694 effects Effects 0.000 abstract description 83
- 239000002184 metal Substances 0.000 abstract description 23
- 229910052751 metal Inorganic materials 0.000 abstract description 23
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 abstract description 10
- 235000019270 ammonium chloride Nutrition 0.000 abstract description 5
- HIVLDXAAFGCOFU-UHFFFAOYSA-N ammonium hydrosulfide Chemical compound [NH4+].[SH-] HIVLDXAAFGCOFU-UHFFFAOYSA-N 0.000 abstract description 5
- 239000001284 azanium sulfanide Substances 0.000 abstract description 5
- 230000015572 biosynthetic process Effects 0.000 abstract description 5
- 230000001681 protective effect Effects 0.000 abstract description 3
- 238000001179 sorption measurement Methods 0.000 abstract description 3
- 125000001033 ether group Chemical group 0.000 abstract description 2
- 235000021317 phosphate Nutrition 0.000 description 84
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 30
- 239000000126 substance Substances 0.000 description 22
- 238000005516 engineering process Methods 0.000 description 13
- 239000000463 material Substances 0.000 description 13
- 239000000203 mixture Substances 0.000 description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 11
- 238000005536 corrosion prevention Methods 0.000 description 10
- 239000003921 oil Substances 0.000 description 10
- 238000004140 cleaning Methods 0.000 description 8
- 150000002500 ions Chemical class 0.000 description 8
- 238000007670 refining Methods 0.000 description 8
- 230000005764 inhibitory process Effects 0.000 description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 230000002378 acidificating effect Effects 0.000 description 5
- 239000000047 product Substances 0.000 description 5
- 238000001816 cooling Methods 0.000 description 4
- 230000007547 defect Effects 0.000 description 4
- 230000008021 deposition Effects 0.000 description 4
- 239000000839 emulsion Substances 0.000 description 4
- 229940031098 ethanolamine Drugs 0.000 description 4
- 238000000746 purification Methods 0.000 description 4
- 239000004094 surface-active agent Substances 0.000 description 4
- GNLLVGLBEKGLTI-UHFFFAOYSA-N 2-methylprop-1-ene;pyrrolidine-2,5-dione Chemical compound CC(C)=C.O=C1CCC(=O)N1 GNLLVGLBEKGLTI-UHFFFAOYSA-N 0.000 description 3
- 239000013078 crystal Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- TWJNQYPJQDRXPH-UHFFFAOYSA-N 2-cyanobenzohydrazide Chemical compound NNC(=O)C1=CC=CC=C1C#N TWJNQYPJQDRXPH-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- AXAVYKPSABZLIB-UHFFFAOYSA-N C1(CCC(N1)=O)=O.CC(C)=C.CC(C)=C Chemical compound C1(CCC(N1)=O)=O.CC(C)=C.CC(C)=C AXAVYKPSABZLIB-UHFFFAOYSA-N 0.000 description 2
- 235000021360 Myristic acid Nutrition 0.000 description 2
- TUNFSRHWOTWDNC-UHFFFAOYSA-N Myristic acid Natural products CCCCCCCCCCCCCC(O)=O TUNFSRHWOTWDNC-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 238000004517 catalytic hydrocracking Methods 0.000 description 2
- 239000000084 colloidal system Substances 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000005984 hydrogenation reaction Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000000693 micelle Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 229910052717 sulfur Inorganic materials 0.000 description 2
- 239000011593 sulfur Substances 0.000 description 2
- 238000010189 synthetic method Methods 0.000 description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000004931 aggregating effect Effects 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006065 biodegradation reaction Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 150000001728 carbonyl compounds Chemical class 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 239000013522 chelant Substances 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000004945 emulsification Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 230000003301 hydrolyzing effect Effects 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- ZXEKIIBDNHEJCQ-UHFFFAOYSA-N isobutanol Chemical compound CC(C)CO ZXEKIIBDNHEJCQ-UHFFFAOYSA-N 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 230000002829 reductive effect Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D171/00—Coating compositions based on polyethers obtained by reactions forming an ether link in the main chain; Coating compositions based on derivatives of such polymers
- C09D171/02—Polyalkylene oxides
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/08—Anti-corrosive paints
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Preventing Corrosion Or Incrustation Of Metals (AREA)
Abstract
A high-pressure salt-expelling film-forming agent and its preparation method, wherein the synthetic raw material of the high-pressure salt-expelling film-forming agent contains composite organic corrosion inhibitor, wherein the composite organic corrosion inhibitor contains imidazoline compound, organic amine polyoxyethylene ether and polyalcohol phosphate ester. The high-pressure salt-driving film-forming agent forms a protective film on the surface of metal by a composite organic corrosion inhibitor, inhibits the corrosion of ammonium bisulfide, ammonium chloride and the like on the surface of metal and the formation of salt scale, prevents the corrosion under the scale and slows down the corrosion. Wherein the imidazoline compound and the organic amine polyoxyethylene ether form coordination with the metal surface, are firmly adsorbed on the metal surface, form an adsorption film on the metal surface and prevent a corrosive medium from contacting with the metal surface. So that the high-pressure salt-driving film-forming agent has excellent anticorrosion effect.
Description
Technical Field
The invention relates to the technical field of chemical additives, and particularly relates to a high-pressure salt-flooding film-forming agent and a preparation method thereof.
Background
The oil refining industry is used as a national basic industry, along with the progress of society, the consumption of crude oil and the deterioration of oil refining raw materials are increasingly serious, and the corrosion of high-salt and high-sulfur oil refining components on equipment is a very serious problem in the oil refining industry. In the oil refining process, the feed contains sulfur, nitrogen, chlorine and other impurities, and after high-temperature or hydrogenation reaction, the feed becomes H in the reaction effluent2S、NH3And HCl and other corrosive media, which interact with each other to react to generate ammonium bisulfide, ammonium chloride and other substances, and are easy to crystallize, precipitate, scale and corrode under scale in equipment and pipelines.
In the prior art, corrosion inhibition is usually adopted by an anti-corrosion measure, but the corrosion inhibitor in the prior art has the problems of poor effect, easiness in oil emulsification, poor product stability and the like, and has the problem of difficult biodegradation.
Therefore, aiming at the defects of the prior art, the high-pressure salt-expelling film-forming agent and the preparation method thereof are provided to overcome the defects of the prior art.
Disclosure of Invention
One of the purposes of the invention is to provide a high-pressure salt-driving film-forming agent which has excellent anti-corrosion effect and avoids the defects of the prior art.
The above object of the present invention is achieved by the following technical measures:
the high-pressure salt-expelling film-forming agent is provided, and the synthetic raw materials contain a composite organic corrosion inhibitor, wherein the composite organic corrosion inhibitor contains an imidazoline compound, organic amine polyoxyethylene ether and polyalcohol phosphate.
The high-pressure salt-flooding film-forming agent also contains a dispersing agent, a neutralizing agent and a solvent.
The synthetic raw materials comprise the following components in parts by weight:
compound organic corrosion inhibitor: 20-40 parts;
dispersing agent: 10-30 parts;
neutralizing agent: 15-40 parts;
auxiliary agent: 10-30 parts;
solvent: 10 to 30 portions.
In the composite organic corrosion inhibitor, the weight ratio of an imidazoline compound to organic amine polyoxyethylene ether to polyol phosphate is (1-3): (0.5-2): 1.
further, the synthetic raw materials comprise the following components in parts by weight:
compound organic corrosion inhibitor: 25-30 parts;
dispersing agent: 15-20 parts of a stabilizer;
neutralizing agent: 20-30 parts;
auxiliary agent: 15-20 parts of a stabilizer;
solvent: 15 to 20 portions.
In the composite organic corrosion inhibitor, the weight ratio of an imidazoline compound to organic amine polyoxyethylene ether to polyol phosphate is (1.8-2.5): (0.8-1.2): 1.
preferably, the raw material for synthesizing the imidazoline compound contains an organic carboxylic acid and an amide.
Preferably, the organic carboxylic acid is at least one of stearic acid, oleic acid, myristic acid, lauric acid, capric acid, or benzoic acid.
Preferably, the amide is at least one of isobutyramide, polyacrylamide, caprolactam, dimethylformamide, and dimethylacetamide.
Preferably, the organic amine polyoxyethylene ether is at least one of laurylamine polyoxyethylene ether, octylamine polyoxyethylene ether and oleylamine polyoxyethylene ether.
Preferably, the polyol phosphate ester has the formula PO4HR1R2Wherein R is1Is H, R1Is HO-CH2-CH2-O-，R2Is CH3-CH2-O-CH2-CH2-O-。
Preferably, the dispersant is at least one of a mono-polyisobutylene diimide, a di-polyisobutylene succinimide, or a polyisobutylene succinimide.
Preferably, the neutralizing agent is at least one of diethylenetriamine, triethylenetetramine or tetraethylenepentamine.
Preferably, the auxiliary is ethanolamine.
Preferably, the solvent is at least one of ethanol, ethylene glycol, n-propanol, isopropanol, n-butanol, and sec-butanol.
Preferably, the composite organic corrosion inhibitor further contains 5-trifluoromethyl-1H-pyrazolo [2,3, B ] pyridine.
In the composite organic corrosion inhibitor, the weight ratio of an imidazoline compound, organic amine polyoxyethylene ether, polyalcohol phosphate and 5-trifluoromethyl-1H-pyrazolo [2,3, B ] pyridine is 2: 1: 1: (0.1-0.5).
Preferably, the dispersant further contains a fluorine-containing betaine amphoteric surfactant.
The weight ratio of the fluorine-containing betaine amphoteric surfactant is 0.1-0.3 of the total weight of the dispersing agent.
The second purpose of the invention is to provide a preparation method of the high-pressure salt-flooding film-forming agent, which avoids the defects of the prior art. The high-pressure salt-driving film-forming agent prepared by the preparation method has an excellent anticorrosion effect.
The above object of the present invention is achieved by the following technical measures:
the preparation method of the high-pressure salt-flooding film-forming agent comprises the following steps:
mixing organic carboxylic acid and amide, and heating for reaction to obtain an imidazoline compound;
step two, mixing the imidazoline compound obtained in the step one with organic amine polyoxyethylene ether and polyalcohol phosphate to obtain a composite organic corrosion inhibitor;
and step three, mixing the composite organic corrosion inhibitor obtained in the step two with a neutralizer, an auxiliary agent and a solvent to obtain the high-pressure salt-driving film-forming agent.
Preferably, the step one is carried out in a molar ratio of 1: (0.3-1.5) mixing organic carboxylic acid and amide, heating to 85-120 ℃, controlling the pressure to be 0.05-0.3 MPa, and reacting for 0.5-6 h to obtain the imidazoline compound.
Preferably, the second step is to mix the imidazoline compound obtained in the first step with organic amine polyoxyethylene ether, polyol phosphate and 5-trifluoromethyl-1H-pyrazolo [2,3, B ] pyridine at room temperature to obtain the composite organic corrosion inhibitor.
Preferably, the third step is to mix the composite organic corrosion inhibitor obtained in the second step with a neutralizer, an auxiliary agent and a solvent to obtain the high-pressure salt-driving film-forming agent.
Preferably, the step one is carried out in a molar ratio of 1: (0.6-1.3) mixing organic carboxylic acid and amide, heating to 90-110 ℃, controlling the pressure to be 0.1-0.2 MPa, and reacting for 1-4 h to obtain the imidazoline compound.
The invention relates to a high-pressure salt-driving film-forming agent and a preparation method thereof, wherein a synthetic raw material of the high-pressure salt-driving film-forming agent contains a composite organic corrosion inhibitor, wherein the composite organic corrosion inhibitor contains an imidazoline compound, organic amine polyoxyethylene ether and polyalcohol phosphate. The high-pressure salt-driving film-forming agent forms a protective film on the surface of metal by a composite organic corrosion inhibitor, inhibits the corrosion of ammonium bisulfide, ammonium chloride and the like on the surface of metal and the formation of salt scale, prevents the corrosion under the scale and slows down the corrosion. Wherein the imidazoline compound and the organic amine polyoxyethylene ether form coordination with the metal surface, are firmly adsorbed on the metal surface, form an adsorption film on the metal surface and prevent a corrosive medium from contacting with the metal surface. So that the high-pressure salt-driving film-forming agent has excellent anticorrosion effect.
Detailed Description
The technical solution of the present invention is further illustrated by the following examples, which are not intended to limit the present invention in any way. The starting reagents used in the examples of the present invention are all those conventionally purchased unless otherwise specified.
Example 1.
A high-pressure salt-expelling film-forming agent is prepared from composite organic corrosion inhibitor containing imidazoline compound, organic amine polyethenoxy ether and polyol phosphate.
The high-pressure salt-flooding film-forming agent also contains a dispersing agent, a neutralizing agent and a solvent.
The synthetic raw materials comprise the following components in parts by weight:
compound organic corrosion inhibitor: 20-40 parts;
dispersing agent: 10-30 parts;
neutralizing agent: 15-40 parts;
auxiliary agent: 10-30 parts;
solvent: 10-30 parts;
in the composite organic corrosion inhibitor, the weight ratio of an imidazoline compound to organic amine polyoxyethylene ether to polyol phosphate is (1-3): (0.5-2): 1.
wherein, the raw material for synthesizing the imidazoline compound contains organic carboxylic acid and amide. The organic carboxylic acid is at least one of stearic acid, oleic acid, myristic acid, lauric acid, capric acid or benzoic acid. The amide being isobutylAt least one of an amide, polyacrylamide, caprolactam, dimethylformamide, or dimethylacetamide. The organic amine polyoxyethylene ether is at least one of laurylamine polyoxyethylene ether, octylamine polyoxyethylene ether and oleylamine polyoxyethylene ether. The molecular formula of the polyol phosphate is PO4HR1R2Wherein R is1Is H, R1Is HO-CH2-CH2-O-，R2Is CH3-CH2-O-CH2-CH2-O-. The dispersant is at least one of mono-polyisobutylene diimide, di-polyisobutylene succinimide or polyisobutylene succinimide. The neutralizer is at least one of diethylenetriamine, triethylene tetramine or tetraethylene pentamine. The auxiliary agent is ethanolamine. The solvent is at least one of ethanol, ethylene glycol, n-propanol, isopropanol, n-butanol or sec-butanol.
The imidazoline compound and the organic amine polyoxyethylene ether of the present invention form a coordination effect with the metal surface, and are firmly adsorbed on the metal surface, so as to form an adsorption film on the metal surface and block the contact between a corrosive medium and the metal surface. The high pressure in the high-pressure salt-flooding film-forming agent refers to that the high-pressure salt-flooding film-forming agent is diluted and then injected into a production pipeline in a high-pressure environment.
The polyol phosphate ester has the functions of hydrolyzing in water to form negative ions and forming a chelate with the positive ions in the water, so that the positive ions are dispersed in the water and discharged along with acidic water, and the deposition of corrosive salts is prevented; meanwhile, the polyol phosphate can also be chelated with the formed metal scale, so that the scale is dissolved to achieve the effect of descaling. The neutralizer and the auxiliary agent both have the functions of slow release and corrosion prevention. The dispersing agent and the solvent can disperse the formed scale and are also favorable for better dispersion of the effective components.
The invention can inhibit the corrosion of ammonium bisulfide, ammonium chloride and the like to the metal surface and the formation of salt scale by forming the protective film on the metal surface, and can also effectively dissolve and disperse the scale deposit adhered to the tube wall, prevent the corrosion under the scale deposit and slow down the corrosion.
The high-pressure salt-driving film-forming agent is a multifunctional corrosion-inhibiting surfactant, and is suitable for corrosion inhibition and corrosion prevention of devices such as atmospheric pressure and vacuum, hydrocracking, diesel hydrogenation and the like. The invention has the following beneficial effects:
(1) descaling: the scale of the refining equipment comprises inorganic scale and organic scale. The inorganic scale comprises salt compounds and impurity particles, and the organic scale mainly comprises C, H and comprises macromolecular substances such as colloid, asphaltene and the like. The dispersant is a surfactant substance which can lead oil, water, effective components, water-soluble substances formed by incrustation and organic incrustation dissolved by a solvent to form emulsion and wrap the emulsion to have the function of aggregating and balling formed and deposited incrustation (comprising FeS and fine salt particles), so that a scale layer which becomes a continuous phase has pores to achieve the effect of incrustation removal.
(2) Cleaning dispersibility: the invention contains lipophilic and hydrophilic polar groups and structural substances of a surfactant, so that the colloid substances and oxygen-containing compounds in the high-pressure salt-driving film-forming agent, such as hydroxyl, carboxyl and carbonyl compounds, form micelles, are dispersed in oil in a micelle state, further oxidation and condensation of the substances are prevented, and a stable dispersed phase is formed.
(3) And (3) corrosion prevention: salt scale such as ammonium bisulfide, ammonium chloride and the like adhered on the tube wall is effectively dispersed, the formation of new salt scale is prevented, and the corrosion under the scale is prevented; has good inhibition effect on NH4HS-NH4CL-H2O corrosion.
(4) And (3) environmental protection: the invention does not contain substances which have influence on the quality of the oil product, thereby not influencing the operation of subsequent devices.
(5) Energy conservation: the invention can improve the heat transfer efficiency after eliminating the scale deposit, and achieve the purpose of energy saving. And the invention reduces the blockage of the tube bundle caused by the scale deposit, thereby making the flow velocity and the pressure of the fluid more stable and making the process more stable.
Example 2.
A high-pressure salt-expelling film-forming agent is prepared from composite organic corrosion inhibitor containing imidazoline compound, organic amine polyethenoxy ether and polyol phosphate.
The high-pressure salt-flooding film-forming agent also contains a dispersing agent, a neutralizing agent and a solvent.
The synthetic raw materials comprise the following components in parts by weight:
compound organic corrosion inhibitor: 25-30 parts;
dispersing agent: 15-20 parts of a stabilizer;
neutralizing agent: 20-30 parts;
auxiliary agent: 15-20 parts of a stabilizer;
solvent: 15-20 parts of a stabilizer;
in the composite organic corrosion inhibitor, the weight ratio of the imidazoline compound, the organic amine polyoxyethylene ether and the polyalcohol phosphate ester is 3: 2: 1.
compared with the example 1, the high-pressure salt-driving film-forming agent has better anti-corrosion effect, descaling effect and dispersing effect than the example 1.
Example 3.
A high-pressure salt-expelling film-forming agent is prepared from composite organic corrosion inhibitor containing imidazoline compound, organic amine polyethenoxy ether and polyol phosphate.
The high-pressure salt-flooding film-forming agent also contains a dispersing agent, a neutralizing agent and a solvent.
The synthetic raw materials comprise the following components in parts by weight:
compound organic corrosion inhibitor: 20 parts of (1);
dispersing agent: 10 parts of (A);
neutralizing agent: 15 parts of (1);
auxiliary agent: 10 parts of (A);
solvent: 10 parts of (A);
in the composite organic corrosion inhibitor, the weight ratio of the imidazoline compound, the organic amine polyoxyethylene ether and the polyalcohol phosphate ester is 1: 0.5: 1.
wherein, the raw material for synthesizing the imidazoline compound contains organic carboxylic acid and amide.
The organic carboxylic acid is stearic acid.
The amide is isobutyramide.
The organic amine polyoxyethylene ether is laurylamine polyoxyethylene ether.
The molecular formula of the polyol phosphate is PO4HR1R2Wherein R is1Is H, R1Is HO-CH2-CH2-O-，R2Is CH3-CH2-O-CH2-CH2-O-。
The dispersant is a mono-polyisobutylene diimide.
The neutralizer is diethylenetriamine; the auxiliary agent is ethanolamine.
The solvent is ethanol.
Wherein stearic acid is purchased from Shanghai Yacheng chemical Co., Ltd. Laurylamine polyoxyethylene ether is purchased from the Hainan chemical plant of Jiangsu province. Polyol phosphates are available from Shandong universalization and New materials, Inc. Isobutyramide, diethylenetriamine and ethanolamine are all available from Shanghai crystal purifications science and technology, Inc.
Compared with the example 1, the high-pressure salt-driving film-forming agent has better anti-corrosion effect, descaling effect and dispersing effect than the example 1.
Example 4.
A high-pressure salt-expelling film-forming agent is prepared from composite organic corrosion inhibitor containing imidazoline compound, organic amine polyethenoxy ether and polyol phosphate.
The high-pressure salt-flooding film-forming agent also contains a dispersing agent, a neutralizing agent and a solvent.
The synthetic raw materials comprise the following components in parts by weight:
compound organic corrosion inhibitor: 40 parts of a mixture;
dispersing agent: 30 parts of (1);
40 parts of a neutralizing agent;
auxiliary agent: 30 parts of (1);
solvent: 30 parts of (1);
in the composite organic corrosion inhibitor, the weight ratio of the imidazoline compound, the organic amine polyoxyethylene ether and the polyalcohol phosphate ester is 1: 0.5: 1.
wherein, the raw material for synthesizing the imidazoline compound contains organic carboxylic acid and amide.
The organic carboxylic acid is oleic acid.
The amide is polyacrylamide.
The organic amine polyoxyethylene ether is octylamine polyoxyethylene.
The molecular formula of the polyol phosphate is PO4HR1R2Wherein R is1Is H, R1Is HO-CH2-CH2-O-，R2Is CH3-CH2-O-CH2-CH2-O-。
The dispersant is a dimeric isobutylene succinimide.
The neutralizer is triethylene tetramine; the auxiliary agent is ethanolamine.
The solvent is ethylene glycol.
Wherein, the oleic acid is purchased from Shanghai Yacheng chemical Co., Ltd. Laurylamine polyoxyethylene ether is purchased from the Hainan chemical plant of Jiangsu province. Polyol phosphates are available from Shandong universalization and New materials, Inc. The bis-polyisobutylene succinimide, triethylene tetramine, and ethanolamine are all available from Shanghai Crystal pure science and technology, Inc.
Compared with the example 1, the high-pressure salt-driving film-forming agent has better anti-corrosion effect, descaling effect and dispersing effect than the example 1.
Example 5.
A high-pressure salt-expelling film-forming agent is prepared from composite organic corrosion inhibitor containing imidazoline compound, organic amine polyethenoxy ether and polyol phosphate.
The high-pressure salt-flooding film-forming agent also contains a dispersing agent, a neutralizing agent and a solvent.
The synthetic raw materials comprise the following components in parts by weight:
compound organic corrosion inhibitor: 25 parts of (1);
dispersing agent: 15 parts of (1);
15 parts of a neutralizer;
auxiliary agent: 15 parts of (1);
solvent: 15 parts of (1);
in the composite organic corrosion inhibitor, the weight ratio of the imidazoline compound, the organic amine polyoxyethylene ether and the polyalcohol phosphate ester is 1.8: 0.8: 1.
wherein, the raw material for synthesizing the imidazoline compound contains organic carboxylic acid and amide.
The organic carboxylic acid is myristic acid.
The amide is caprolactam or polyacrylamide.
The organic amine polyoxyethylene ether is octylamine polyoxyethylene ether.
The molecular formula of the polyol phosphate is PO4HR1R2Wherein R is1Is H, R1Is HO-CH2-CH2-O-，R2Is CH3-CH2-O-CH2-CH2-O-。
The dispersant is polyisobutylene succinimide.
The neutralizer is tetraethylenepentamine; the auxiliary agent is ethanolamine.
The solvent is n-propanol.
Wherein, the myristic acid is purchased from Shanghai Yacheng chemical engineering Co. Octylamine polyoxyethylene ether was purchased from Haian chemical plant of Jiangsu province. Polyol phosphates are available from Shandong universalization and New materials, Inc. Caprolactam, polyacrylamide, polyisobutylene succinimide, tetraethylenepentamine and ethanolamine are all available from Shanghai Crystal purification science and technology, Inc.
Compared with the example 1, the high-pressure salt-driving film-forming agent has better anti-corrosion effect, descaling effect and dispersing effect than the example 1.
Example 6.
A high-pressure salt-expelling film-forming agent is prepared from composite organic corrosion inhibitor containing imidazoline compound, organic amine polyethenoxy ether and polyol phosphate.
The high-pressure salt-flooding film-forming agent also contains a dispersing agent, a neutralizing agent and a solvent.
The synthetic raw materials comprise the following components in parts by weight:
compound organic corrosion inhibitor: 30 parts of (1);
dispersing agent: 20 parts of (1);
neutralizing agent: 30 parts of (1);
auxiliary agent: 20 parts of (1);
solvent: 20 parts of (1);
in the composite organic corrosion inhibitor, the weight ratio of the imidazoline compound, the organic amine polyoxyethylene ether and the polyalcohol phosphate ester is 1.5: 1.5: 1.
wherein, the raw material for synthesizing the imidazoline compound contains organic carboxylic acid and amide.
The organic carboxylic acid is lauric acid.
The amide is dimethylformamide.
The organic amine polyoxyethylene ether is oleylamine polyoxyethylene ether.
The molecular formula of the polyol phosphate is PO4HR1R2Wherein R is1Is H, R1Is HO-CH2-CH2-O-，R2Is CH3-CH2-O-CH2-CH2-O-。
The dispersant is polyisobutylene diimide or polyisobutylene succinimide.
The neutralizer is tetraethylenepentamine and diethylenetriamine; the auxiliary agent is ethanolamine.
The solvent is isopropanol.
Among them, lauric acid is available from Shanghai Yacheng chemical Co., Ltd. Oleylamine polyoxyethylene ether was purchased from the Hainan chemical plant of Jiangsu province. Polyol phosphates are available from Shandong universalization and New materials, Inc. Dimethylformamide, monomeric polyisobutylene diimide, polyisobutylene succinimide, tetraethylenepentamine, diethylenetriamine and ethanolamine are all available from Shanghai Crystal purification science and technology, Inc.
Compared with the example 1, the high-pressure salt-driving film-forming agent has better anti-corrosion effect, descaling effect and dispersing effect than the example 1.
Example 7.
A high-pressure salt-expelling film-forming agent is prepared from composite organic corrosion inhibitor containing imidazoline compound, organic amine polyethenoxy ether and polyol phosphate.
The high-pressure salt-flooding film-forming agent also contains a dispersing agent, a neutralizing agent and a solvent.
The synthetic raw materials comprise the following components in parts by weight:
compound organic corrosion inhibitor: 28 parts of (1);
dispersing agent: 18 parts of a mixture;
neutralizing agent: 25 parts of (1);
auxiliary agent: 19 parts of a mixture;
solvent: 17 parts of (1);
in the composite organic corrosion inhibitor, the weight ratio of the imidazoline compound, the organic amine polyoxyethylene ether and the polyalcohol phosphate ester is 2: 1: 1.
wherein, the raw material for synthesizing the imidazoline compound contains organic carboxylic acid and amide.
The organic carboxylic acid is capric acid.
The amide is dimethylacetamide.
The organic amine polyoxyethylene ether is octylamine polyoxyethylene ether or laurylamine polyoxyethylene ether.
The molecular formula of the polyol phosphate is PO4HR1R2Wherein R is1Is H, R1Is HO-CH2-CH2-O-，R2Is CH3-CH2-O-CH2-CH2-O-。
The dispersant is polyisobutylene succinimide.
The neutralizer is triethylene tetramine; the auxiliary agent is ethanolamine.
The solvent is n-butanol.
Of these, capric acid is available from Shanghai Yacheng chemical Co., Ltd. Octylamine polyoxyethylene ether and laurylamine polyoxyethylene ether are purchased from the Hainan chemical plant of Jiangsu province. Polyol phosphates are available from Shandong universalization and New materials, Inc. Dimethylformamide, monomeric polyisobutylene diimide, polyisobutylene succinimide, triethylene tetramine and ethanolamine are all available from Shanghai Crystal pure science and technology, Inc.
Compared with the example 1, the high-pressure salt-driving film-forming agent has better anti-corrosion effect, descaling effect and dispersing effect than the example 1.
Example 8.
A high-pressure salt-expelling film-forming agent is prepared from composite organic corrosion inhibitor containing imidazoline compound, organic amine polyethenoxy ether and polyol phosphate.
The high-pressure salt-flooding film-forming agent also contains a dispersing agent, a neutralizing agent and a solvent.
The synthetic raw materials comprise the following components in parts by weight:
21 parts of composite organic corrosion inhibitor;
dispersing agent: 17.6 parts;
neutralizing agent: 27 parts of (1);
auxiliary agent: 16 parts of a mixture;
solvent: 16 parts of a mixture;
in the composite organic corrosion inhibitor, the weight ratio of the imidazoline compound, the organic amine polyoxyethylene ether and the polyalcohol phosphate ester is 2: 1: 1.
wherein, the raw material for synthesizing the imidazoline compound contains organic carboxylic acid and amide.
The organic carboxylic acid is capric acid.
The amide is dimethylacetamide.
The organic amine polyoxyethylene ether is oleylamine polyoxyethylene ether.
The molecular formula of the polyol phosphate is PO4HR1R2Wherein R is1Is H, R1Is HO-CH2-CH2-O-，R2Is CH3-CH2-O-CH2-CH2-O-。
The dispersant is a dimeric isobutylene succinimide.
The neutralizer is triethylene tetramine; the auxiliary agent is ethanolamine.
The solvent is sec-butyl alcohol.
Of these, capric acid is available from Shanghai Yacheng chemical Co., Ltd. Oleylamine polyoxyethylene ether was purchased from the Hainan chemical plant of Jiangsu province. Polyol phosphates are available from Shandong universalization and New materials, Inc. Dimethylformamide, diisobutylene succinimide, triethylene tetramine, and ethanolamine are all available from Shanghai Crystal pure science and technology, Inc.
Compared with the example 1, the high-pressure salt-driving film-forming agent has better anti-corrosion effect, descaling effect and dispersing effect than the example 1.
Example 9.
A high-pressure salt-expelling film-forming agent is prepared from composite organic corrosion inhibitor containing imidazoline compound, organic amine polyethenoxy ether and polyol phosphate.
The high-pressure salt-flooding film-forming agent also contains a dispersing agent, a neutralizing agent and a solvent.
The synthetic raw materials comprise the following components in parts by weight:
compound organic corrosion inhibitor: 24 parts of (1);
dispersing agent: 18.5 parts;
neutralizing agent: 28 parts of (1);
auxiliary agent: 18 parts of a mixture;
solvent: 23 parts;
in the composite organic corrosion inhibitor, the weight ratio of the imidazoline compound, the organic amine polyoxyethylene ether and the polyalcohol phosphate ester is 2: 1: 1.
wherein, the raw material for synthesizing the imidazoline compound contains organic carboxylic acid and amide.
The organic carboxylic acid is benzoic acid and stearic acid.
The amide is dimethylacetamide.
The organic amine polyoxyethylene ether is oleylamine polyoxyethylene ether.
The molecular formula of the polyol phosphate is PO4HR1R2Wherein R is1Is H, R1Is HO-CH2-CH2-O-，R2Is CH3-CH2-O-CH2-CH2-O-。
The dispersant is a dimeric isobutylene succinimide.
The neutralizer is triethylene tetramine; the auxiliary agent is ethanolamine.
The solvent is ethanol or ethylene glycol.
Wherein, the benzoic acid and the stearic acid are purchased from Shanghai Yacheng chemical engineering Co. Oleylamine polyoxyethylene ether was purchased from the Hainan chemical plant of Jiangsu province. Polyol phosphates are available from Shandong universalization and New materials, Inc. Dimethylformamide, diisobutylene succinimide, triethylene tetramine, and ethanolamine are all available from Shanghai Crystal pure science and technology, Inc.
Compared with the example 1, the high-pressure salt-driving film-forming agent has better anti-corrosion effect, descaling effect and dispersing effect than the example 1.
Example 10.
A high-pressure salt-expelling film-forming agent is prepared from composite organic corrosion inhibitor containing imidazoline compound, organic amine polyethenoxy ether and polyol phosphate.
The high-pressure salt-flooding film-forming agent also contains a dispersing agent, a neutralizing agent and a solvent.
The synthetic raw materials comprise the following components in parts by weight:
compound organic corrosion inhibitor: 30 parts of (1);
dispersing agent: 15 parts of (1);
neutralizing agent: 25 parts of (1);
auxiliary agent: 15 parts of (1);
solvent: 15 parts of (1);
in the composite organic corrosion inhibitor, the weight ratio of the imidazoline compound, the organic amine polyoxyethylene ether and the polyalcohol phosphate ester is 2: 1: 1.
wherein, the raw material for synthesizing the imidazoline compound contains organic carboxylic acid and amide.
The organic carboxylic acid is oleic acid.
The amide is polyacrylamide.
The organic amine polyoxyethylene ether is laurylamine polyoxyethylene ether.
The molecular formula of the polyol phosphate is PO4HR1R2Wherein R is1Is H, R1Is HO-CH2-CH2-O-，R2Is CH3-CH2-O-CH2-CH2-O-。
The dispersant is a mono-polyisobutylene diimide.
The neutralizer is diethylenetriamine; the auxiliary agent is ethanolamine.
The solvent is isopropanol and n-butanol.
Wherein, the oleic acid is purchased from Shanghai Yacheng chemical Co., Ltd. Laurylamine polyoxyethylene ether is purchased from the Hainan chemical plant of Jiangsu province. Polyol phosphates are available from Shandong universalization and New materials, Inc. Polyacrylamide, mono-polyisobutylene diimide, diethylenetriamine and ethanolamine are all available from Shanghai Crystal pure technology, Inc.
Compared with the example 1, the high-pressure salt-driving film-forming agent has better anti-corrosion effect, descaling effect and dispersing effect than the example 1.
Example 11.
A high-pressure salt-expelling film-forming agent is prepared from composite organic corrosion inhibitor containing imidazoline compound, organic amine polyethenoxy ether and polyol phosphate.
The high-pressure salt-flooding film-forming agent also contains a dispersing agent, a neutralizing agent and a solvent.
The synthetic raw materials comprise the following components in parts by weight:
compound organic corrosion inhibitor: 24 parts of (1);
dispersing agent: 18 parts of a mixture;
neutralizing agent: 25 parts of (1);
auxiliary agent: 17 parts of (1);
solvent: 16 parts of a mixture;
in the composite organic corrosion inhibitor, the weight ratio of the imidazoline compound, the organic amine polyoxyethylene ether and the polyalcohol phosphate ester is 2: 1: 1.
wherein, the raw material for synthesizing the imidazoline compound contains organic carboxylic acid and amide.
The organic carboxylic acid is lauric acid.
The amide is caprolactam.
The organic amine polyoxyethylene ether is oleylamine polyoxyethylene ether.
The molecular formula of the polyol phosphate is PO4HR1R2Wherein R is1Is H, R1Is HO-CH2-CH2-O-，R2Is CH3-CH2-O-CH2-CH2-O-。
The dispersant is a mono-polyisobutylene diimide.
The neutralizer is diethylenetriamine; the auxiliary agent is ethanolamine.
The solvent is isopropanol and n-butanol.
Wherein, the lauric acid is purchased from Shanghai Yacheng chemical Co. Oleylamine polyoxyethylene ether was purchased from the Hainan chemical plant of Jiangsu province. Polyol phosphates are available from Shandong universalization and New materials, Inc. Caprolactam, polyisobutylene diimide, diethylenetriamine and ethanolamine are all available from Shanghai crystal purificational science and technology, Inc.
Compared with the example 1, the high-pressure salt-driving film-forming agent has better anti-corrosion effect, descaling effect and dispersing effect than the example 1.
Example 12.
A high-pressure salt-expelling film-forming agent is prepared from composite organic corrosion inhibitor containing imidazoline compound, organic amine polyethenoxy ether and polyol phosphate.
The high-pressure salt-flooding film-forming agent also contains a dispersing agent, a neutralizing agent and a solvent.
The synthetic raw materials comprise the following components in parts by weight:
compound organic corrosion inhibitor: 28 parts of (1);
dispersing agent: 16 parts of a mixture;
neutralizing agent: 22 parts of (A);
auxiliary agent: 15 parts of (1);
solvent: 18 parts of a mixture;
in the composite organic corrosion inhibitor, the weight ratio of the imidazoline compound, the organic amine polyoxyethylene ether and the polyalcohol phosphate ester is 2: 1: 1.
wherein, the raw material for synthesizing the imidazoline compound contains organic carboxylic acid and amide.
The organic carboxylic acid is capric acid.
The amide is isobutyramide.
The organic amine polyoxyethylene ether is oleylamine polyoxyethylene ether.
The molecular formula of the polyol phosphate is PO4HR1R2Wherein R is1Is H, R1Is HO-CH2-CH2-O-，R2Is CH3-CH2-O-CH2-CH2-O-。
The dispersant is a mono-polyisobutylene diimide.
The neutralizer is diethylenetriamine; the auxiliary agent is ethanolamine.
The solvent is isopropanol and n-butanol.
Of these, capric acid is available from Shanghai Yacheng chemical Co., Ltd. Oleylamine polyoxyethylene ether was purchased from the Hainan chemical plant of Jiangsu province. Polyol phosphates are available from Shandong universalization and New materials, Inc. Isobutyramide, monopolyisobutylene diimide, diethylenetriamine and ethanolamine are all available from Shanghai crystal purifications science and technology, Inc.
Compared with the example 1, the high-pressure salt-driving film-forming agent has better anti-corrosion effect, descaling effect and dispersing effect than the example 1.
Example 13.
A high pressure salt-driving film former, otherwise characterized as in examples 1-9, which also had the following characteristics:
wherein the composite organic corrosion inhibitor also contains 5-trifluoromethyl-1H-pyrazolo [2,3, B ] pyridine.
In the composite organic corrosion inhibitor, the weight ratio of an imidazoline compound, organic amine polyoxyethylene ether, polyalcohol phosphate and 5-trifluoromethyl-1H-pyrazolo [2,3, B ] pyridine is 2: 1: 1: (0.1-0.5).
The dispersant of this example also contained a fluorine-containing betaine-type amphoteric surfactant;
wherein the weight ratio of the fluorine-containing betaine amphoteric surfactant is 0.1-0.3 of the total weight of the dispersing agent.
When the 5-trifluoromethyl-1H-pyrazolo [2,3, B ] pyridine is rich in strong polar group fluorine, the pyridine can generate strong repulsion action on organic scale so as to achieve the effect of expelling the organic scale, and then forms coordination action with the metal surface to be firmly adsorbed on the metal surface. The dispersant also comprises a fluorine-containing betaine amphoteric surfactant which is a fluorine-containing substituted surfactant and can remove organic scale on the metal surface, and simultaneously can remove oil, water, effective components, water-soluble substances formed by scale deposition and organic scale deposition dissolved by a solvent, so that emulsion is formed and is wrapped in the emulsion to have an aggregation and balling effect on the formed and deposited scale deposition, and scale layers which become continuous phases are provided with pores to achieve the effect of scale removal.
It is to be noted that the fluorine-containing betaine type amphoteric surfactant of the present invention, for example, C9F17CONHC3H6N+(CH3)2CH·C(OH)HSO2Synthetic method of the fluorine-containing betaine-type amphoteric surfactant a conventional synthetic method is known to those skilled in the art and can be found in the organic fluorine industry according to shaoxing fur et al, 1994, 2 nd, pages 1-3.
Compared with the example 1, the high-pressure salt-driving film-forming agent has better anti-corrosion effect, descaling effect and dispersing effect than the example 1.
Example 14.
A high-pressure salt-expelling film-forming agent is prepared from composite organic corrosion inhibitor containing imidazoline compound, organic amine polyethenoxy ether and polyol phosphate.
The high-pressure salt-flooding film-forming agent also contains a dispersing agent, a neutralizing agent and a solvent.
The synthetic raw materials comprise the following components in parts by weight:
compound organic corrosion inhibitor: 26 parts of (1);
dispersing agent: 15 parts of (1);
auxiliary agent: 15 parts of (1);
solvent: 12 parts of (1);
in the composite organic corrosion inhibitor, the weight ratio of an imidazoline compound, organic amine polyoxyethylene ether, polyol phosphate and 5-trifluoromethyl-1H-pyrazolo [2,3, B ] pyridine is 2: 1: 1: 0.1.
wherein, the raw material for synthesizing the imidazoline compound contains organic carboxylic acid and amide.
The organic carboxylic acid is stearic acid.
The amide is isobutyramide.
The organic amine polyoxyethylene ether is laurylamine polyoxyethylene ether.
The molecular formula of the polyol phosphate is PO4HR1R2Wherein R is1Is H, R1Is HO-CH2-CH2-O-，R2Is CH3-CH2-O-CH2-CH2-O-。
The dispersant is single polyisobutene diimide and a fluorine-containing betaine type amphoteric surfactant, wherein the weight ratio of the fluorine-containing betaine type amphoteric surfactant is 0.1 of the total weight of the dispersant.
The neutralizer is diethylenetriamine; the auxiliary agent is ethanolamine.
The solvent is ethylene glycol.
Wherein stearic acid is purchased from Shanghai Yacheng chemical Co., Ltd. Laurylamine polyoxyethylene ether is purchased from the Hainan chemical plant of Jiangsu province. Polyol phosphates are available from Shandong universalization and New materials, Inc. 5-trifluoromethyl-1H-pyrazolo [2,3, B ] pyridine, isobutyramide, monomeric polyisobutylene diimide, diethylenetriamine, and ethanolamine are all available from Shanghai Crystal pure science and technology, Inc. The fluorine-based betaine amphoteric surfactant is a self-made product.
Compared with the example 1, the high-pressure salt-driving film-forming agent has better anti-corrosion effect, descaling effect and dispersing effect than the example 1.
Example 15.
A high-pressure salt-expelling film-forming agent is prepared from composite organic corrosion inhibitor containing imidazoline compound, organic amine polyethenoxy ether and polyol phosphate.
The high-pressure salt-flooding film-forming agent also contains a dispersing agent, a neutralizing agent and a solvent.
The synthetic raw materials comprise the following components in parts by weight:
compound organic corrosion inhibitor: 22 parts of (A);
dispersing agent: 13 parts;
auxiliary agent: 16 parts of a mixture;
solvent: 13 parts;
in the composite organic corrosion inhibitor, the weight ratio of an imidazoline compound, organic amine polyoxyethylene ether, polyol phosphate and 5-trifluoromethyl-1H-pyrazolo [2,3, B ] pyridine is 2: 1: 1: 0.5.
wherein, the raw material for synthesizing the imidazoline compound contains organic carboxylic acid and amide.
The organic carboxylic acid is stearic acid.
The amide is isobutyramide.
The organic amine polyoxyethylene ether is laurylamine polyoxyethylene ether.
The molecular formula of the polyol phosphate is PO4HR1R2Wherein R is1Is H, R1Is HO-CH2-CH2-O-，R2Is CH3-CH2-O-CH2-CH2-O-。
The dispersant is polyisobutylene diimide and a fluorine-containing betaine amphoteric surfactant, wherein the weight ratio of the fluorine-containing betaine amphoteric surfactant to the total weight of the dispersant is 0.3.
The neutralizer is diethylenetriamine; the auxiliary agent is ethanolamine.
The solvent is ethylene glycol.
Wherein stearic acid is purchased from Shanghai Yacheng chemical Co., Ltd. Laurylamine polyoxyethylene ether is purchased from the Hainan chemical plant of Jiangsu province. Polyol phosphates are available from Shandong universalization and New materials, Inc. 5-trifluoromethyl-1H-pyrazolo [2,3, B ] pyridine, isobutyramide, monomeric polyisobutylene diimide, diethylenetriamine, and ethanolamine are all available from Shanghai Crystal pure science and technology, Inc. The fluorine-based betaine amphoteric surfactant is a self-made product.
Compared with the example 1, the high-pressure salt-driving film-forming agent has better anti-corrosion effect, descaling effect and dispersing effect than the example 1.
Example 16.
A high-pressure salt-expelling film-forming agent is prepared from composite organic corrosion inhibitor containing imidazoline compound, organic amine polyethenoxy ether and polyol phosphate.
The high-pressure salt-flooding film-forming agent also contains a dispersing agent, a neutralizing agent and a solvent.
The synthetic raw materials comprise the following components in parts by weight:
compound organic corrosion inhibitor: 37 parts of;
dispersing agent: 21 parts of (1);
auxiliary agent: 18 parts of a mixture;
solvent: 15 parts of (1);
fluorine-based betaine-type amphoteric surfactant: 3 parts of a mixture;
in the composite organic corrosion inhibitor, the weight ratio of an imidazoline compound, organic amine polyoxyethylene ether, polyol phosphate and 5-trifluoromethyl-1H-pyrazolo [2,3, B ] pyridine is 2: 1: 1: 0.3.
wherein, the raw material for synthesizing the imidazoline compound contains organic carboxylic acid and amide.
The organic carboxylic acid is stearic acid.
The amide is isobutyramide.
The organic amine polyoxyethylene ether is laurylamine polyoxyethylene ether.
The molecular formula of the polyol phosphate is PO4HR1R2Wherein R is1Is H, R1Is HO-CH2-CH2-O-，R2Is CH3-CH2-O-CH2-CH2-O-。
The dispersant is polyisobutylene diimide and a fluorine-containing betaine amphoteric surfactant, wherein the weight ratio of the fluorine-containing betaine amphoteric surfactant to the total weight of the dispersant is 0.2.
The neutralizer is diethylenetriamine; the auxiliary agent is ethanolamine.
The solvent is ethylene glycol.
Wherein stearic acid is purchased from Shanghai Yacheng chemical Co., Ltd. Laurylamine polyoxyethylene ether is purchased from the Hainan chemical plant of Jiangsu province. Polyol phosphates are available from Shandong universalization and New materials, Inc. 5-trifluoromethyl-1H-pyrazolo [2,3, B ] pyridine, isobutyramide, monomeric polyisobutylene diimide, diethylenetriamine, and ethanolamine are all available from Shanghai Crystal pure science and technology, Inc. The fluorine-based betaine amphoteric surfactant is a self-made product.
Compared with the example 1, the high-pressure salt-driving film-forming agent has better anti-corrosion effect, descaling effect and dispersing effect than the example 1.
Example 17.
A method for preparing a high pressure salt-flooding film-forming agent, which adopts the raw material proportioning as any of embodiments 3 to 12 or 14 to 16, and comprises the following steps:
mixing organic carboxylic acid and amide, and heating for reaction to obtain an imidazoline compound;
step two, when 5-trifluoromethyl-1H-pyrazolo [2,3, B ] pyridine exists as a synthetic raw material of the composite organic corrosion inhibitor, mixing the imidazoline compound obtained in the step one with organic amine polyoxyethylene ether, polyalcohol phosphate and 5-trifluoromethyl-1H-pyrazolo [2,3, B ] pyridine at room temperature to obtain the composite organic corrosion inhibitor;
when 5-trifluoromethyl-1H-pyrazolo [2,3, B ] pyridine does not exist as a raw material for synthesizing the composite organic corrosion inhibitor, mixing the imidazoline compound obtained in the step one with organic amine polyoxyethylene ether and polyalcohol phosphate at room temperature to obtain the composite organic corrosion inhibitor;
and step three, mixing the composite organic corrosion inhibitor obtained in the step two with a neutralizer, an auxiliary agent and a solvent to obtain the high-pressure salt-driving film-forming agent.
Wherein, the first step is that the molar ratio is 1: (0.3-1.5) mixing organic carboxylic acid and amide, heating to 85-120 ℃, controlling the pressure to be 0.05-0.3 MPa, and reacting for 0.5-6 h to obtain the imidazoline compound.
The preparation method of the high-pressure salt-expelling film-forming agent is simple in synthesis process and obtains the high-pressure salt-expelling film-forming agent through three steps.
Example 18.
A method for preparing a high-pressure salt-flooding film-forming agent adopts the raw material proportioning of any one of embodiments 3 to 12 and any one of embodiments 14 to 16,
step one, the molar ratio is 1: (0.6-1.3) mixing organic carboxylic acid and amide, heating to 90-110 ℃, controlling the pressure to be 0.1-0.2 MPa, and reacting for 1-4 h to obtain the imidazoline compound.
Step two, when 5-trifluoromethyl-1H-pyrazolo [2,3, B ] pyridine exists as a synthetic raw material of the composite organic corrosion inhibitor, mixing the imidazoline compound obtained in the step one with organic amine polyoxyethylene ether, polyalcohol phosphate and 5-trifluoromethyl-1H-pyrazolo [2,3, B ] pyridine at room temperature to obtain the composite organic corrosion inhibitor;
when 5-trifluoromethyl-1H-pyrazolo [2,3, B ] pyridine does not exist as a raw material for synthesizing the composite organic corrosion inhibitor, mixing the imidazoline compound obtained in the step one with organic amine polyoxyethylene ether and polyalcohol phosphate at room temperature to obtain the composite organic corrosion inhibitor;
and step three, mixing the composite organic corrosion inhibitor obtained in the step two with a neutralizer, an auxiliary agent and a solvent to obtain the high-pressure salt-driving film-forming agent.
Compared with the example 17, the high-pressure salt-driving film-forming agent prepared by the preparation method of the high-pressure salt-driving film-forming agent has better corrosion prevention effect, descaling effect and cleaning and dispersing effect than the high-pressure salt-driving film-forming agent prepared by the preparation method of the example 17.
Example 19.
A method for preparing a high-pressure salt-flooding film-forming agent adopts the raw material proportioning of any one of embodiments 3 to 12 and any one of embodiments 14 to 16,
step one, the molar ratio is 1: 0.3 mixing the organic carboxylic acid and the amide, heating to 85 ℃, controlling the pressure to be 0.05MPa, and reacting for 0.5h to obtain the imidazoline compound.
Step two, when 5-trifluoromethyl-1H-pyrazolo [2,3, B ] pyridine exists as a synthetic raw material of the composite organic corrosion inhibitor, mixing the imidazoline compound obtained in the step one with organic amine polyoxyethylene ether, polyalcohol phosphate and 5-trifluoromethyl-1H-pyrazolo [2,3, B ] pyridine at room temperature to obtain the composite organic corrosion inhibitor;
when 5-trifluoromethyl-1H-pyrazolo [2,3, B ] pyridine does not exist as a raw material for synthesizing the composite organic corrosion inhibitor, mixing the imidazoline compound obtained in the step one with organic amine polyoxyethylene ether and polyalcohol phosphate at room temperature to obtain the composite organic corrosion inhibitor;
and step three, mixing the composite organic corrosion inhibitor obtained in the step two with a neutralizer, an auxiliary agent and a solvent to obtain the high-pressure salt-driving film-forming agent.
Compared with the example 17, the high-pressure salt-driving film-forming agent prepared by the preparation method of the high-pressure salt-driving film-forming agent has better corrosion prevention effect, descaling effect and cleaning and dispersing effect than the high-pressure salt-driving film-forming agent prepared by the preparation method of the example 17.
Example 20.
A method for preparing a high-pressure salt-flooding film-forming agent adopts the raw material proportioning of any one of embodiments 3 to 12 and any one of embodiments 14 to 16,
step one, the molar ratio is 1: 1.5 mixing organic carboxylic acid and amide, heating to 120 ℃, controlling the pressure to be 0.3MPa, and reacting for 6h to obtain the imidazoline compound.
Step two, when 5-trifluoromethyl-1H-pyrazolo [2,3, B ] pyridine exists as a synthetic raw material of the composite organic corrosion inhibitor, mixing the imidazoline compound obtained in the step one with organic amine polyoxyethylene ether, polyalcohol phosphate and 5-trifluoromethyl-1H-pyrazolo [2,3, B ] pyridine at room temperature to obtain the composite organic corrosion inhibitor;
when 5-trifluoromethyl-1H-pyrazolo [2,3, B ] pyridine does not exist as a raw material for synthesizing the composite organic corrosion inhibitor, mixing the imidazoline compound obtained in the step one with organic amine polyoxyethylene ether and polyalcohol phosphate at room temperature to obtain the composite organic corrosion inhibitor;
and step three, mixing the composite organic corrosion inhibitor obtained in the step two with a neutralizer, an auxiliary agent and a solvent to obtain the high-pressure salt-driving film-forming agent.
Compared with the example 17, the high-pressure salt-driving film-forming agent prepared by the preparation method of the high-pressure salt-driving film-forming agent has better corrosion prevention effect, descaling effect and cleaning and dispersing effect than the high-pressure salt-driving film-forming agent prepared by the preparation method of the example 17.
Example 21.
A method for preparing a high-pressure salt-flooding film-forming agent adopts the raw material proportioning of any one of embodiments 3 to 12 and any one of embodiments 14 to 16,
step one, the molar ratio is 1: 0.6 mixing the organic carboxylic acid and the amide, heating to 90 ℃, controlling the pressure to be 0.1MPa, and reacting for 1h to obtain the imidazoline compound.
Step two, when 5-trifluoromethyl-1H-pyrazolo [2,3, B ] pyridine exists as a synthetic raw material of the composite organic corrosion inhibitor, mixing the imidazoline compound obtained in the step one with organic amine polyoxyethylene ether, polyalcohol phosphate and 5-trifluoromethyl-1H-pyrazolo [2,3, B ] pyridine at room temperature to obtain the composite organic corrosion inhibitor;
when 5-trifluoromethyl-1H-pyrazolo [2,3, B ] pyridine does not exist as a raw material for synthesizing the composite organic corrosion inhibitor, mixing the imidazoline compound obtained in the step one with organic amine polyoxyethylene ether and polyalcohol phosphate at room temperature to obtain the composite organic corrosion inhibitor;
and step three, mixing the composite organic corrosion inhibitor obtained in the step two with a neutralizer, an auxiliary agent and a solvent to obtain the high-pressure salt-driving film-forming agent.
Compared with the example 17, the high-pressure salt-driving film-forming agent prepared by the preparation method of the high-pressure salt-driving film-forming agent has better corrosion prevention effect, descaling effect and cleaning and dispersing effect than the high-pressure salt-driving film-forming agent prepared by the preparation method of the example 17.
Example 22.
A method for preparing a high-pressure salt-flooding film-forming agent adopts the raw material proportioning of any one of embodiments 3 to 12 and any one of embodiments 14 to 16,
step one, the molar ratio is 1: 1.3 mixing the organic carboxylic acid and the amide, heating to 110 ℃, controlling the pressure to be 0.2MPa, and reacting for 4 hours to obtain the imidazoline compound.
Step two, when 5-trifluoromethyl-1H-pyrazolo [2,3, B ] pyridine exists as a synthetic raw material of the composite organic corrosion inhibitor, mixing the imidazoline compound obtained in the step one with organic amine polyoxyethylene ether, polyalcohol phosphate and 5-trifluoromethyl-1H-pyrazolo [2,3, B ] pyridine at room temperature to obtain the composite organic corrosion inhibitor;
when 5-trifluoromethyl-1H-pyrazolo [2,3, B ] pyridine does not exist as a raw material for synthesizing the composite organic corrosion inhibitor, mixing the imidazoline compound obtained in the step one with organic amine polyoxyethylene ether and polyalcohol phosphate at room temperature to obtain the composite organic corrosion inhibitor;
and step three, mixing the composite organic corrosion inhibitor obtained in the step two with a neutralizer, an auxiliary agent and a solvent to obtain the high-pressure salt-driving film-forming agent.
Compared with the example 17, the high-pressure salt-driving film-forming agent prepared by the preparation method of the high-pressure salt-driving film-forming agent has better corrosion prevention effect, descaling effect and cleaning and dispersing effect than the high-pressure salt-driving film-forming agent prepared by the preparation method of the example 17.
Example 23.
A method for preparing a high-pressure salt-flooding film-forming agent adopts the raw material proportioning of any one of embodiments 3 to 12 and any one of embodiments 14 to 16,
step one, the molar ratio is 1: 0.8 mixing the organic carboxylic acid and the amide, heating to 110 ℃, controlling the pressure to be 0.2MPa, and reacting for 4 hours to obtain the imidazoline compound.
Step two, when 5-trifluoromethyl-1H-pyrazolo [2,3, B ] pyridine exists as a synthetic raw material of the composite organic corrosion inhibitor, mixing the imidazoline compound obtained in the step one with organic amine polyoxyethylene ether, polyalcohol phosphate and 5-trifluoromethyl-1H-pyrazolo [2,3, B ] pyridine at room temperature to obtain the composite organic corrosion inhibitor;
when 5-trifluoromethyl-1H-pyrazolo [2,3, B ] pyridine does not exist as a raw material for synthesizing the composite organic corrosion inhibitor, mixing the imidazoline compound obtained in the step one with organic amine polyoxyethylene ether and polyalcohol phosphate at room temperature to obtain the composite organic corrosion inhibitor;
and step three, mixing the composite organic corrosion inhibitor obtained in the step two with a neutralizer, an auxiliary agent and a solvent to obtain the high-pressure salt-driving film-forming agent.
Compared with the example 17, the high-pressure salt-driving film-forming agent prepared by the preparation method of the high-pressure salt-driving film-forming agent has better corrosion prevention effect, descaling effect and cleaning and dispersing effect than the high-pressure salt-driving film-forming agent prepared by the preparation method of the example 17.
Example 24.
A method for preparing a high-pressure salt-flooding film-forming agent adopts the raw material proportioning of any one of embodiments 3 to 12 and any one of embodiments 14 to 16,
step one, the molar ratio is 1: 1.0 mixing organic carboxylic acid and amide, heating to 110 ℃, controlling the pressure to be 0.2MPa, and reacting for 4h to obtain the imidazoline compound.
Step two, when 5-trifluoromethyl-1H-pyrazolo [2,3, B ] pyridine exists as a synthetic raw material of the composite organic corrosion inhibitor, mixing the imidazoline compound obtained in the step one with organic amine polyoxyethylene ether, polyalcohol phosphate and 5-trifluoromethyl-1H-pyrazolo [2,3, B ] pyridine at room temperature to obtain the composite organic corrosion inhibitor;
when 5-trifluoromethyl-1H-pyrazolo [2,3, B ] pyridine does not exist as a raw material for synthesizing the composite organic corrosion inhibitor, mixing the imidazoline compound obtained in the step one with organic amine polyoxyethylene ether and polyalcohol phosphate at room temperature to obtain the composite organic corrosion inhibitor;
and step three, mixing the composite organic corrosion inhibitor obtained in the step two with a neutralizer, an auxiliary agent and a solvent to obtain the high-pressure salt-driving film-forming agent.
Compared with the example 17, the high-pressure salt-driving film-forming agent prepared by the preparation method of the high-pressure salt-driving film-forming agent has better corrosion prevention effect, descaling effect and cleaning and dispersing effect than the high-pressure salt-driving film-forming agent prepared by the preparation method of the example 17.
TABLE I preparation protocol of samples of the invention
TABLE II, table for comparing performance and effect of high-pressure salt-driving film-forming agent
Remarking: the production process of the refining industry is a continuous process, the refining conditions of the table II are 135-190 ℃ reaction temperature, mixing and stirring for 6 hours, and the experimental groups 1-6 refer to the detection values of the acid water samples taken at different times, specifically, the samples are taken every 1 hour.
In the second table, samples 1-15, the prior art corrosion inhibitor 1 and the prior art corrosion inhibitor 2 are added according to the addition amount of 80ppm, and the Fe ion content in the acidic water after the application of the samples to the hydrocracking thermal high-molecular air cooling system is shown.
From the second table, the content of Fe ions in the acidic water added with the high-pressure salt-flooding film-forming agent is obviously lower than that of the acidic water added with the corrosion inhibitors 1 and 2 in the prior art, and the Fe ions are kept at a higher level, so that the high-pressure salt-flooding film-forming agent has the advantages of better film forming on the metal surface and obvious corrosion inhibition effect on a thermal high-pressure high-molecular air cooling system. And the high-pressure salt-flooding film-forming agents of samples 11 to 15 are added with two components of 5-trifluoromethyl-1H-pyrazolo [2,3, B ] pyridine and the fluorine-containing radical betaine type amphoteric surfactant, the Fe ion content can be further reduced, and the Fe ion content is lower than that of samples 1 to 10. The corrosion inhibitor 1 in the prior art also has a certain effect on corrosion inhibition of a thermal high-temperature-distribution air cooling system, but only the 3 rd group and the 6 th group of data meet the requirement of a refinery on iron ions in acidic water being less than 1.5 ppm. The corrosion inhibitor 2 in the prior art has obvious corrosion inhibition effect on a thermal high-temperature-distribution air cooling system compared with the corrosion inhibitor 1 in the prior art, but the effect is inferior to that of samples 1-15. Wherein the prior art corrosion inhibitor 1 is purchased from Lanzhou Heima petrochemical engineering Co., Ltd, and the prior art corrosion inhibitor 2 is purchased from West Andrew technology Co., Ltd.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the protection scope of the present invention, and although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.
Claims (10)
1. A high-pressure salt-flooding film-forming agent is characterized in that: the synthetic raw material contains a composite organic corrosion inhibitor, wherein the composite organic corrosion inhibitor contains an imidazoline compound, organic amine polyoxyethylene ether and polyalcohol phosphate.
2. The high pressure salt flooding film forming agent of claim 1, characterized by: also contains dispersant, neutralizer and solvent.
3. The high pressure salt flooding film forming agent of claim 2, characterized by: the synthetic raw materials comprise the following components in parts by weight:
compound organic corrosion inhibitor: 20-40 parts;
dispersing agent: 10-30 parts;
neutralizing agent: 15-40 parts;
auxiliary agent: 10-30 parts;
solvent: 10-30 parts;
in the composite organic corrosion inhibitor, the weight ratio of an imidazoline compound to organic amine polyoxyethylene ether to polyol phosphate is (1-3): (0.5-2): 1.
4. the high pressure salt flooding film forming agent of claim 3, characterized by: the synthetic raw materials comprise the following components in parts by weight:
compound organic corrosion inhibitor: 25-30 parts;
dispersing agent: 15-20 parts of a stabilizer;
neutralizing agent: 20-30 parts;
auxiliary agent: 15-20 parts of a stabilizer;
solvent: 15-20 parts of a stabilizer;
in the composite organic corrosion inhibitor, the weight ratio of an imidazoline compound to organic amine polyoxyethylene ether to polyol phosphate is (1.8-2.5): (0.8-1.2): 1.
5. the high pressure salt flooding film forming agent of claim 4, wherein: the raw materials for synthesizing the imidazoline compound contain organic carboxylic acid and amide;
the organic carboxylic acid is at least one of stearic acid, oleic acid, myristic acid, lauric acid, capric acid or benzoic acid;
the amide is at least one of isobutyramide, polyacrylamide, caprolactam, dimethylformamide or dimethylacetamide;
the organic amine polyoxyethylene ether is at least one of laurylamine polyoxyethylene ether, octylamine polyoxyethylene ether and oleylamine polyoxyethylene ether;
the molecular formula of the polyalcohol phosphate ester is PO4HR1R2Wherein R is1Is H, R1Is HO-CH2-CH2-O-，R2Is CH3-CH2-O-CH2-CH2-O-；
The dispersant is at least one of mono-polyisobutylene diimide, di-polyisobutylene succinimide or polyisobutylene succinimide;
the neutralizing agent is at least one of diethylenetriamine, triethylene tetramine or tetraethylene pentamine;
the auxiliary agent is ethanolamine;
the solvent is at least one of ethanol, ethylene glycol, n-propanol, isopropanol, n-butanol or sec-butanol.
6. The high pressure salt flooding film forming agent of claim 5, characterized by: the composite organic corrosion inhibitor also contains 5-trifluoromethyl-1H-pyrazolo [2,3, B ] pyridine;
in the composite organic corrosion inhibitor, the weight ratio of an imidazoline compound, organic amine polyoxyethylene ether, polyalcohol phosphate and 5-trifluoromethyl-1H-pyrazolo [2,3, B ] pyridine is 2: 1: 1: (0.1-0.5).
7. The high pressure salt flooding film forming agent of claim 6, characterized by: the dispersant also contains a fluorine-containing betaine amphoteric surfactant;
the weight ratio of the fluorine-containing betaine amphoteric surfactant is 0.1-0.3 of the total weight of the dispersing agent.
8. The process for preparing a high pressure salt-flooding film-forming agent as claimed in claim 6 or 7, comprising:
mixing organic carboxylic acid and amide, and heating for reaction to obtain an imidazoline compound;
step two, mixing the imidazoline compound obtained in the step one with organic amine polyoxyethylene ether and polyalcohol phosphate to obtain a composite organic corrosion inhibitor;
and step three, mixing the composite organic corrosion inhibitor obtained in the step two with a neutralizer, an auxiliary agent and a solvent to obtain the high-pressure salt-driving film-forming agent.
9. The method for preparing the high pressure salt flooding film forming agent according to claim 8, wherein the method comprises the following steps:
the first step is specifically that the molar ratio is 1: (0.3-1.5) mixing organic carboxylic acid and amide, heating to 85-120 ℃, controlling the pressure to be 0.05-0.3 MPa, and reacting for 0.5-6 h to obtain an imidazoline compound;
step two is specifically to mix the imidazoline compound obtained in the step one with organic amine polyoxyethylene ether, polyalcohol phosphate and 5-trifluoromethyl-1H-pyrazolo [2,3, B ] pyridine at room temperature to obtain a composite organic corrosion inhibitor;
and step three, mixing the composite organic corrosion inhibitor obtained in the step two with a neutralizer, an auxiliary agent and a solvent to obtain the high-pressure salt-driving film-forming agent.
10. The method for preparing a high pressure salt flooding film forming agent according to claim 9, wherein:
the first step is specifically that the molar ratio is 1: (0.6-1.3) mixing organic carboxylic acid and amide, heating to 90-110 ℃, controlling the pressure to be 0.1-0.2 MPa, and reacting for 1-4 h to obtain the imidazoline compound.
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| CN117050624A (en) * | 2023-06-29 | 2023-11-14 | 陕西佰亿盟能源科技有限公司 | High-pressure salt-expelling film forming agent and preparation method thereof |
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