CN111575083B - Centrifugal compressor oil and preparation method thereof - Google Patents
Centrifugal compressor oil and preparation method thereof Download PDFInfo
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- CN111575083B CN111575083B CN202010550404.3A CN202010550404A CN111575083B CN 111575083 B CN111575083 B CN 111575083B CN 202010550404 A CN202010550404 A CN 202010550404A CN 111575083 B CN111575083 B CN 111575083B
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- 239000010725 compressor oil Substances 0.000 title claims abstract description 36
- 238000002360 preparation method Methods 0.000 title abstract description 7
- 239000003921 oil Substances 0.000 claims abstract description 63
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 62
- 239000002199 base oil Substances 0.000 claims abstract description 40
- -1 alkyl naphthalene Chemical compound 0.000 claims abstract description 32
- 239000003345 natural gas Substances 0.000 claims abstract description 30
- UFWIBTONFRDIAS-UHFFFAOYSA-N naphthalene-acid Natural products C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 claims abstract description 25
- 239000002994 raw material Substances 0.000 claims abstract description 12
- 239000000654 additive Substances 0.000 claims abstract description 11
- 230000000996 additive effect Effects 0.000 claims abstract description 10
- 230000007797 corrosion Effects 0.000 claims description 27
- 238000005260 corrosion Methods 0.000 claims description 27
- 239000003795 chemical substances by application Substances 0.000 claims description 26
- 239000003112 inhibitor Substances 0.000 claims description 24
- 239000002518 antifoaming agent Substances 0.000 claims description 22
- 230000003078 antioxidant effect Effects 0.000 claims description 20
- 238000003756 stirring Methods 0.000 claims description 19
- 239000003963 antioxidant agent Substances 0.000 claims description 18
- 239000013556 antirust agent Substances 0.000 claims description 8
- 238000010438 heat treatment Methods 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 6
- 230000002209 hydrophobic effect Effects 0.000 claims description 5
- RUFPHBVGCFYCNW-UHFFFAOYSA-N 1-naphthylamine Chemical compound C1=CC=C2C(N)=CC=CC2=C1 RUFPHBVGCFYCNW-UHFFFAOYSA-N 0.000 claims description 4
- 229910019142 PO4 Inorganic materials 0.000 claims description 4
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 4
- DMBHHRLKUKUOEG-UHFFFAOYSA-N diphenylamine Chemical class C=1C=CC=CC=1NC1=CC=CC=C1 DMBHHRLKUKUOEG-UHFFFAOYSA-N 0.000 claims description 4
- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical group [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 claims description 4
- 239000002736 nonionic surfactant Substances 0.000 claims description 4
- 239000010452 phosphate Substances 0.000 claims description 4
- 229920000642 polymer Polymers 0.000 claims description 4
- 229920001296 polysiloxane Polymers 0.000 claims description 4
- 239000004890 Hydrophobing Agent Substances 0.000 claims description 3
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 claims description 2
- 229920002367 Polyisobutene Polymers 0.000 claims description 2
- GOOHAUXETOMSMM-UHFFFAOYSA-N Propylene oxide Chemical compound CC1CO1 GOOHAUXETOMSMM-UHFFFAOYSA-N 0.000 claims description 2
- 150000001412 amines Chemical class 0.000 claims description 2
- QRUDEWIWKLJBPS-UHFFFAOYSA-N benzotriazole Chemical compound C1=CC=C2N[N][N]C2=C1 QRUDEWIWKLJBPS-UHFFFAOYSA-N 0.000 claims description 2
- 239000012964 benzotriazole Substances 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 150000007524 organic acids Chemical group 0.000 claims description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims description 2
- 125000002467 phosphate group Chemical group [H]OP(=O)(O[H])O[*] 0.000 claims description 2
- VLLMWSRANPNYQX-UHFFFAOYSA-N thiadiazole Chemical compound C1=CSN=N1.C1=CSN=N1 VLLMWSRANPNYQX-UHFFFAOYSA-N 0.000 claims description 2
- HVLLSGMXQDNUAL-UHFFFAOYSA-N triphenyl phosphite Chemical compound C=1C=CC=CC=1OP(OC=1C=CC=CC=1)OC1=CC=CC=C1 HVLLSGMXQDNUAL-UHFFFAOYSA-N 0.000 claims description 2
- XQVWYOYUZDUNRW-UHFFFAOYSA-N N-Phenyl-1-naphthylamine Chemical group C=1C=CC2=CC=CC=C2C=1NC1=CC=CC=C1 XQVWYOYUZDUNRW-UHFFFAOYSA-N 0.000 claims 2
- KEQFTVQCIQJIQW-UHFFFAOYSA-N N-Phenyl-2-naphthylamine Chemical compound C=1C=C2C=CC=CC2=CC=1NC1=CC=CC=C1 KEQFTVQCIQJIQW-UHFFFAOYSA-N 0.000 claims 1
- 230000003647 oxidation Effects 0.000 abstract description 20
- 238000007254 oxidation reaction Methods 0.000 abstract description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 18
- 230000007062 hydrolysis Effects 0.000 abstract description 12
- 238000006460 hydrolysis reaction Methods 0.000 abstract description 12
- 230000008859 change Effects 0.000 abstract description 9
- 238000004945 emulsification Methods 0.000 abstract description 8
- 239000000839 emulsion Substances 0.000 abstract description 6
- 239000003973 paint Substances 0.000 abstract description 6
- 230000035945 sensitivity Effects 0.000 abstract description 4
- 239000010802 sludge Substances 0.000 abstract description 4
- 239000000084 colloidal system Substances 0.000 abstract description 3
- 239000013049 sediment Substances 0.000 abstract description 3
- 235000019198 oils Nutrition 0.000 description 54
- 239000000047 product Substances 0.000 description 20
- 238000012360 testing method Methods 0.000 description 18
- 238000000034 method Methods 0.000 description 14
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 12
- 239000002253 acid Substances 0.000 description 12
- 229910052802 copper Inorganic materials 0.000 description 12
- 239000010949 copper Substances 0.000 description 12
- 239000000203 mixture Substances 0.000 description 12
- 230000000052 comparative effect Effects 0.000 description 10
- PAYRUJLWNCNPSJ-UHFFFAOYSA-N Aniline Chemical compound NC1=CC=CC=C1 PAYRUJLWNCNPSJ-UHFFFAOYSA-N 0.000 description 8
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 8
- 239000001301 oxygen Substances 0.000 description 8
- 229910052760 oxygen Inorganic materials 0.000 description 8
- 238000001704 evaporation Methods 0.000 description 7
- 230000008020 evaporation Effects 0.000 description 7
- 239000007788 liquid Substances 0.000 description 7
- 230000002940 repellent Effects 0.000 description 7
- 239000005871 repellent Substances 0.000 description 7
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 6
- 230000015572 biosynthetic process Effects 0.000 description 6
- 239000007789 gas Substances 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 238000003786 synthesis reaction Methods 0.000 description 6
- 238000004448 titration Methods 0.000 description 6
- 239000010408 film Substances 0.000 description 5
- 239000006260 foam Substances 0.000 description 5
- 229930195733 hydrocarbon Natural products 0.000 description 5
- 150000002430 hydrocarbons Chemical class 0.000 description 5
- 239000004215 Carbon black (E152) Substances 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000002474 experimental method Methods 0.000 description 4
- 238000001914 filtration Methods 0.000 description 4
- 230000001590 oxidative effect Effects 0.000 description 4
- 229920013639 polyalphaolefin Polymers 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 239000010723 turbine oil Substances 0.000 description 4
- KGRVJHAUYBGFFP-UHFFFAOYSA-N 2,2'-Methylenebis(4-methyl-6-tert-butylphenol) Chemical compound CC(C)(C)C1=CC(C)=CC(CC=2C(=C(C=C(C)C=2)C(C)(C)C)O)=C1O KGRVJHAUYBGFFP-UHFFFAOYSA-N 0.000 description 3
- JKIJEFPNVSHHEI-UHFFFAOYSA-N Phenol, 2,4-bis(1,1-dimethylethyl)-, phosphite (3:1) Chemical compound CC(C)(C)C1=CC(C(C)(C)C)=CC=C1OP(OC=1C(=CC(=CC=1)C(C)(C)C)C(C)(C)C)OC1=CC=C(C(C)(C)C)C=C1C(C)(C)C JKIJEFPNVSHHEI-UHFFFAOYSA-N 0.000 description 3
- 230000009471 action Effects 0.000 description 3
- 239000003054 catalyst Substances 0.000 description 3
- 238000012512 characterization method Methods 0.000 description 3
- 230000003301 hydrolyzing effect Effects 0.000 description 3
- 230000007774 longterm Effects 0.000 description 3
- 239000010687 lubricating oil Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 125000001624 naphthyl group Chemical group 0.000 description 3
- 239000003209 petroleum derivative Substances 0.000 description 3
- 229920006395 saturated elastomer Polymers 0.000 description 3
- 238000002076 thermal analysis method Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- 239000001361 adipic acid Substances 0.000 description 2
- 235000011037 adipic acid Nutrition 0.000 description 2
- 150000001335 aliphatic alkanes Chemical class 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 239000011260 aqueous acid Substances 0.000 description 2
- 235000013361 beverage Nutrition 0.000 description 2
- 238000007664 blowing Methods 0.000 description 2
- 239000007853 buffer solution Substances 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 229910002091 carbon monoxide Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 150000002148 esters Chemical class 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- WNLRTRBMVRJNCN-UHFFFAOYSA-N hexanedioic acid Natural products OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 239000004615 ingredient Substances 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- 230000001050 lubricating effect Effects 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 238000000691 measurement method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 239000012071 phase Substances 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 239000011574 phosphorus Substances 0.000 description 2
- 229920005862 polyol Polymers 0.000 description 2
- 238000003918 potentiometric titration Methods 0.000 description 2
- 230000003449 preventive effect Effects 0.000 description 2
- 230000002829 reductive effect Effects 0.000 description 2
- 238000007670 refining Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 238000013112 stability test Methods 0.000 description 2
- 229910052717 sulfur Inorganic materials 0.000 description 2
- 239000011593 sulfur Substances 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- DIOYAVUHUXAUPX-ZHACJKMWSA-N 2-[methyl-[(e)-octadec-9-enoyl]amino]acetic acid Chemical compound CCCCCCCC\C=C\CCCCCCCC(=O)N(C)CC(O)=O DIOYAVUHUXAUPX-ZHACJKMWSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 1
- 102100039496 Choline transporter-like protein 4 Human genes 0.000 description 1
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- OTMSDBZUPAUEDD-UHFFFAOYSA-N Ethane Chemical compound CC OTMSDBZUPAUEDD-UHFFFAOYSA-N 0.000 description 1
- 101000889282 Homo sapiens Choline transporter-like protein 4 Proteins 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 239000004721 Polyphenylene oxide Substances 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 239000008186 active pharmaceutical agent Substances 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 150000004996 alkyl benzenes Chemical group 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000003254 anti-foaming effect Effects 0.000 description 1
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000001273 butane Substances 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 229910002090 carbon oxide Inorganic materials 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- LWJWGXUXSVJWBY-UHFFFAOYSA-N dihydroxy-phenoxy-sulfanylidene-$l^{5}-phosphane Chemical compound OP(O)(=S)OC1=CC=CC=C1 LWJWGXUXSVJWBY-UHFFFAOYSA-N 0.000 description 1
- 229910001882 dioxygen Inorganic materials 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- RIZMRRKBZQXFOY-UHFFFAOYSA-N ethion Chemical compound CCOP(=S)(OCC)SCSP(=S)(OCC)OCC RIZMRRKBZQXFOY-UHFFFAOYSA-N 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- VUZPPFZMUPKLLV-UHFFFAOYSA-N methane;hydrate Chemical compound C.O VUZPPFZMUPKLLV-UHFFFAOYSA-N 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000010705 motor oil Substances 0.000 description 1
- IJDNQMDRQITEOD-UHFFFAOYSA-N n-butane Chemical compound CCCC IJDNQMDRQITEOD-UHFFFAOYSA-N 0.000 description 1
- OFBQJSOFQDEBGM-UHFFFAOYSA-N n-pentane Natural products CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 235000019476 oil-water mixture Nutrition 0.000 description 1
- 230000036961 partial effect Effects 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 229920000570 polyether Polymers 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 229930195734 saturated hydrocarbon Natural products 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 238000001308 synthesis method Methods 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
- 235000019640 taste Nutrition 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M105/00—Lubricating compositions characterised by the base-material being a non-macromolecular organic compound
- C10M105/02—Well-defined hydrocarbons
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M169/00—Lubricating compositions characterised by containing as components a mixture of at least two types of ingredient selected from base-materials, thickeners or additives, covered by the preceding groups, each of these compounds being essential
- C10M169/04—Mixtures of base-materials and additives
- C10M169/042—Mixtures of base-materials and additives the additives being compounds of unknown or incompletely defined constitution only
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2203/00—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
- C10M2203/06—Well-defined aromatic compounds
- C10M2203/065—Well-defined aromatic compounds used as base material
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2203/00—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
- C10M2203/10—Petroleum or coal fractions, e.g. tars, solvents, bitumen
- C10M2203/102—Aliphatic fractions
- C10M2203/1025—Aliphatic fractions used as base material
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
- C10M2205/02—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers
- C10M2205/026—Butene
Landscapes
- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Lubricants (AREA)
Abstract
The application provides centrifugal compressor oil and a preparation method thereof, wherein the centrifugal compressor oil comprises the following raw materials in parts by weight: 80-100 parts of base oil and 0.01-16 parts of additive, wherein the base oil comprises 18-70 parts of natural gas synthetic oil and 20-70 parts of alkyl naphthalene base oil. The centrifugal compressor oil has reasonable components, good additive sensitivity and stable performance; the emulsion has strong water resistance, is resistant to emulsification and hydrolysis, and can effectively solve the emulsification problem of oil products; the paint has excellent high-temperature oxidation resistance, effectively inhibits the generation of harmful sediments such as oil sludge, paint films, colloid and the like, and keeps the cleanness of equipment; the extreme pressure wear resistance is good, the antirust and anticorrosion capabilities are strong, the oil consumption is less, the oil change period is long, the economical efficiency is good, and the requirement of the ultra-long service life of the centrifugal compressor is met.
Description
Technical Field
The application belongs to the field of air compressor lubrication and cooling, and particularly relates to centrifugal compressor oil and a preparation method thereof.
Background
The compressor plays an extremely important role in industrial production life as a leading soldier in equipment manufacturing industry. A centrifugal compressor is a vane rotary compressor in which a centrifugal force action given to gas by an impeller rotating at a high speed and a diffuser action given to gas in a diffuser passage increase the gas pressure. The centrifugal air compressor has the obvious advantages of large air flow, high operation rate, few friction pieces and the like, and is widely applied to the industries of large-scale chemical industry, oil refining, refrigeration and the like.
Turbine oil is mostly adopted as a lubricating medium in the lubricating industry of the centrifugal air compressor. The turbine oil has good antioxidant and antirust functions, but is deficient in the aspects of emulsification resistance, detergency, service life and the like. The centrifugal air compressor machine operating temperature is low, and the moisture that brings in the air tastes to evaporate smoothly and gets rid of, and long-term accumulation just can form the gathering of moisture, not only can cause the emulsification of oil, still can play the acceleration action to the oxidative deterioration of oil. In addition, acidic substances and oxidation deposits generated by gradual oxidation and aging of the engine oil in the long-term use process can also have adverse effects on centrifuge components. Therefore, the conventional turbine oil cannot meet the long-term lubrication requirement of the centrifugal air compressor.
The special long-life centrifugal compressor oil in the market is mainly products such as PAO (poly-alpha-olefin), PAG (polyether) and the like, for example, patent document CN106433936A discloses a long-life oil injection rotary air compressor oil composition, which can meet the requirement of a long oil change period of a centrifugal air compressor, but has the problems of high cost, poor economy and the like, and many users cannot accept the high oil change cost.
Disclosure of Invention
In order to solve the problems, the application provides a centrifugal compressor oil and a preparation method thereof, wherein the centrifugal compressor oil comprises the following raw materials in parts by weight: 80-100 parts of base oil and 0.01-16 parts of additive, wherein the base oil comprises 18-70 parts of natural gas synthetic oil and 20-70 parts of alkyl naphthalene base oil.
The natural Gas synthetic oil, Gas to Liquid, is a base oil synthesized by using natural Gas as a raw material, and the process basis of the synthesis process is Fischer-Tropsch synthesis. The fischer-tropsch synthesis is a process developed in 1925 by the german chemists franz fisher and hans tolopro to synthesize liquid saturated hydrocarbons and hydrocarbons with synthesis gas (carbon monoxide and hydrogen) as raw material under the conditions of catalyst and proper reaction price adjustment, and the reaction process can be summarized as follows:
(2n+1)H2+nCO→CnH(2n+2)+nH2O
the natural gas synthetic oil is prepared by oxidizing natural gas molecules into carbon monoxide and hydrogen, and synthesizing liquid saturated long-chain alkane by a Fischer-Tropsch synthesis method. Natural gas is a gaseous low molecular weight hydrocarbon and non-hydrocarbon gas with a major component of methane and also contains small amounts of ethane, propane, nitrogen and butane components. Compared with petroleum, the natural gas has the advantages of pure composition, almost no sulfur, phosphorus and compounds thereof, more reserves, wide resources and the like, the main product of the Fischer-Tropsch synthesis is hydrocarbon, the byproducts are carbon oxide and water, the reaction is relatively thorough, and the purification is easy. The natural gas synthetic oil synthesized by the process has the advantages of no sulfur, phosphorus and aromatic hydrocarbon, high saturation degree, high viscosity index, good viscosity-temperature characteristic, excellent oxidation stability and low-temperature performance, low volatility, good emulsification resistance and anti-foaming performance and the like.
The alkyl naphthalene base oil has excellent antioxidant performance, hydrolysis stability, additive solubility and dispersing performance. Research shows that naphthalene rings rich in electrons in alkyl naphthalene base oil can absorb oxygen, thereby interrupting the transmission of an oxidation chain, preventing the continuous oxidation of hydrocarbon and preventing the occurrence of oxidation. A comparison of the antioxidant properties of the different base oils is given in Table 1. As can be seen from the data in the table, the alkyl naphthalene base oil has an extremely outstanding antioxidant performance compared with other base oils. The naphthalene ring structure rich in electrons has strong polarity, good solubility and dispersibility for polar additives, and table 2 shows that the aniline points of different types of base oil are high, the polarity is weak, and the aniline point is low and the polarity is strong. Meanwhile, from the data in table 3, we obtain: different from ester base oil, the molecular structure of alkyl naphthalene has no easily hydrolyzed group, and the hydrolytic stability is better.
TABLE 1 comparison of antioxidant Properties of different types of base oils
| Item | Low viscosity alkylnaphthalenes | High viscosity alkylnaphthalenes | PAOs | Adipic acid ester | Polyol esters |
| Kinematic viscosity at 100 ℃ in mm2/s | 4.7 | 12.4 | 5.8 | 5.3 | 4.3 |
| Rotating oxygen bomb test (150 ℃,621kPa, water, copper)/min | 195 | 180 | 17 | 70 | - |
| Differential scanning thermal analysis (180 ℃,3.45MPa)/min | 60+ | 60+ | 2.5 | 5.0 | 60+ |
| Total acid value (in terms of potassium hydroxide)/(mg g) after oxidative corrosion test-1) | 0.092 | 0.089 | - | 7.1 | 1.3 |
TABLE 2 comparison of aniline points for different base oils
| Item | Low viscosity alkylnaphthalenes | High viscosity alkylnaphthalenes | PAOs | Synthesis of esters | Alkyl benzene | Group I base oils |
| Kinematic viscosity at 100 ℃ in mm2/s | 4.7 | 12.4 | 5.5 | 5.2 | 4.2 | 4.0 |
| Aniline point, deg.C | 32 | 90 | 119 | 20 | 77.8 | 100 |
TABLE 3 comparison of hydrolytic stability of different base oils
| Item | Low viscosity alkylnaphthalenes | High viscosity alkylnaphthalenes | Adipic acid ester | Polyol esters |
| Kinematic viscosity at 100 ℃ in mm2/s | 4.7 | 12.4 | 5.3 | 4.3 |
| The total acid value after hydrolysis is increased by mg/g (calculated by potassium hydroxide) | 0.02 | 0.02 | 0.16 | 0.20 |
The electron-rich naphthalene ring structure of the alkyl naphthalene base oil and the saturated alkane structure of the natural gas synthetic oil form association, and the two structures cooperate with each other to form the following structure, so that the highly saturated oxidation resistance characteristic of the natural gas synthetic oil can be exerted, and the strong polarity of alkyl naphthalene can be achieved.
The natural gas synthetic oil and the alkyl naphthalene base oil are combined as the base oil, so that the oil has excellent oxidation resistance and hydrolysis resistance, and can provide an ultra-long service life for the centrifugal compressor oil; excellent cleaning performance and wear-resistant and rust-proof performance, and can protect the screw head in all aspects; excellent additive sensitivity and improved system stability.
Preferably, the additive comprises, by weight, 1-3 parts of a hydrophobing agent, 4-10 parts of a high-temperature antioxidant, 0.1-1.5 parts of an extreme pressure antiwear agent, 0.01-0.1 part of a corrosion inhibitor, 0.01-0.5 part of an antirust agent, 0.01-0.05 part of a demulsifier and 0.01-0.05 part of an antifoaming agent.
Preferably, the hydrophobic agent is polyisobutylene, which is PB2400 with an average molecular weight of 2450. The PB2400 has excellent hydrophobic property, and remarkably improves the anti-demulsification capability and hydrolysis resistance of oil products.
Preferably, the high-temperature antioxidant comprises one or more of macromolecular phenol, alkylated diphenylamine and naphthylamine; preferably, the molecular weight of the macromolecular phenol is 900-1100, and the number of alkyl C atoms in the alkylated diphenylamine is C4～C8The naphthylamine is N-phenyl-alpha (beta) -naphthylamine. The high-temperature antioxidant has the effects of improving the oxidation resistance of oil products, reducing harmful deposits such as oil sludge and paint films, inhibiting viscosity increase and prolonging service life.
Preferably, the extreme pressure antiwear agent is a phosphate type antiwear agent, and the phosphate type antiwear agent comprises one or more of phenyl phosphite and phenyl thiophosphate. The extreme pressure antiwear agent has the functions of reducing equipment wear, improving the extreme pressure resistance and antiwear capacity of an oil product covered by a low oil film and reducing equipment friction damage.
Preferably, the corrosion inhibitor comprises one or more of benzotriazole and derivatives thereof, thiadiazole and derivatives thereof, and the antirust agent is an organic acid, organic amine or a nitrogen-containing heterocyclic compound. The corrosion inhibitor is used for protecting nonferrous metals including copper, aluminum and alloys thereof in equipment and reducing chemical or electrochemical metal corrosion. The antirust agent has the function of forming a compact protective film on the surface of metal to prevent equipment from being rusted.
Preferably, the demulsifier is an oil-soluble nonionic surfactant, the oil-soluble nonionic surfactant is a polymer of ethylene oxide and propylene oxide, and the molecular weight of the polymer is 1500-10000.
Preferably, the defoaming agent is a silicone defoaming agent, the silicone defoaming agent is a siloxane defoaming agent, and the viscosity of the siloxane defoaming agent is preferably 50-350 cst.
In addition, the application also discloses a preparation method of the centrifugal compressor oil, which comprises the following steps:
s1: adding 45-55 wt% of natural gas synthetic oil and 45-55 wt% of alkyl naphthalene base oil into a blending kettle for stirring, wherein the stirring temperature is 48-52 ℃, and the stirring speed is 90-110 r/min;
s2: sequentially adding a hydrophobic agent, a high-temperature antioxidant, an extreme pressure antiwear agent, a corrosion inhibitor, an antirust agent and the rest of the natural gas synthetic oil and the alkyl naphthalene base oil, and continuously stirring for 1-2 hours;
s3: and sequentially adding a demulsifier and a defoaming agent, stopping heating, continuously stirring, and cooling to room temperature to obtain the centrifugal compressor oil.
This application can bring following beneficial effect:
the invention provides a centrifugal compressor oil with the service life exceeding 20000 hours. Has the following advantages: the components are reasonable, the sensitivity of the additive is good, and the performance is stable; the emulsion has strong water resistance, is resistant to emulsification and hydrolysis, and can effectively solve the emulsification problem of oil products; the paint has excellent high-temperature oxidation resistance, effectively inhibits the generation of harmful sediments such as oil sludge, paint films, colloid and the like, and keeps the cleanness of equipment; the extreme pressure wear resistance is good, the antirust and anticorrosion capabilities are strong, the oil consumption is less, the oil change period is long, the economical efficiency is good, and the requirement of the ultra-long service life of the centrifugal compressor is met.
Detailed Description
The preparation method of the centrifugal compressor oil in the following embodiment comprises the following steps:
adding 45-55 wt% of natural gas synthetic oil and alkyl naphthalene base oil into a blending kettle, starting stirring at 50 +/-2 ℃ and at a stirring speed of 100 +/-10 r/min. Keeping the temperature and the stirring speed, sequentially adding a hydrophobic agent, a high-temperature antioxidant, an extreme pressure antiwear agent, a corrosion inhibitor, an antirust agent and the rest natural gas synthetic oil and alkyl naphthalene base oil, continuously keeping the stirring temperature of 50 +/-2 ℃ and the stirring speed of 100 +/-10 r/min, and stirring and blending for 1-2 hours. Then adding a demulsifier and a defoaming agent in sequence. The heating was turned off and the mixture was cooled to room temperature with stirring. The stirring time of the whole blending process is not less than 3 hours. Thus obtaining the centrifugal compressor oil of the invention. After blending, filtering for 2-3 times by using a filtering system with the filtering precision not more than 5 mu m, and filling the mixture into a finished product.
The specific implementation conditions are as follows:
example 1
| Sample composition | Name of raw materials | Content (kg) | Manufacturer of the product |
| Natural gas synthetic oil | GTL420 | 18 | SHELL |
| Alkyl naphthalene base oil | Synesstic 5 | 70 | ExxonMobil |
| Water repellent | PB2400 | 1 | DAELIM |
| High temperature antioxidant | Ethanox 4716 | 10 | SI Group |
| Extreme pressure antiwear agent | Irgafos 168 | 0.1 | BASF |
| Corrosion inhibitors | CUVAN 484 | 0.1 | Vanderbilt |
| Rust inhibitor | VANLUBE RI-A | 0.5 | Vanderbilt |
| Demulsifier | LZ5957 | 0.01 | Lubrizol |
| Defoaming agent | LZ888 | 0.05 | Lubrizol |
Example 2
| Sample composition | Name of raw materials | Content (kg) | Manufacturer of the product |
| Natural gas synthetic oil | GTL420 | 70 | SHELL |
| Alkyl naphthalene base oil | Synesstic 12 | 20 | ExxonMobil |
| Water repellent | PB2400 | 3 | DAELIM |
| High temperature antioxidant | VANLUBE 961 | 4 | Vanderbilt |
| Extreme pressure antiwear agent 1 | Irgalube 232 | 0.5 | BASF |
| Extreme pressure antiwear agent 2 | Irgalube TPPT | 1 | BASF |
| Corrosion inhibitors | CUVAN 826 | 0.01 | Vanderbilt |
| Rust inhibitor | Irgalube 349 | 0.01 | BASF |
| Demulsifier | LZ5957 | 0.05 | Lubrizol |
| Defoaming agent | LZ888 | 0.01 | Lubrizol |
Example 3
| Sample composition | Name of raw materials | Content (kg) | Manufacturer of the product |
| Natural gas synthetic oil | GTL430 | 55 | SHELL |
| Alkyl naphthalene base oil | Synesstic 5 | 45 | ExxonMobil |
| Water repellent | PB2400 | 2 | DAELIM |
| High temperature antioxidant | VANLUBE 407 | 6 | Vanderbilt |
| Extreme pressure antiwear agent | Irgafos 168 | 1 | BASF |
| Corrosion inhibitor 1 | CUVAN 484 | 0.03 | Vanderbilt |
| Corrosion inhibitor 2 | CUVAN 826 | 0.04 | Vanderbilt |
| Rust inhibitor 1 | VANLUBE 601 | 0.05 | Vanderbilt |
| Rust inhibitor 2 | Irgalube 349 | 0.15 | BASF |
| Demulsifier | LZ5957 | 0.02 | Lubrizol |
| Defoaming agent | LZ888 | 0.03 | Lubrizol |
Example 4
| Sample composition | Name of raw materials | Content (kg) | Manufacturer of the product |
| Natural gas synthetic oil | GTL430 | 55 | SHELL |
| Alkyl naphthalene base oil | Synesstic 5 | 45 | ExxonMobil |
| Water repellent | PB2400 | 2 | DAELIM |
| High temperature antioxidant | VANLUBE 407 | 6 | Vanderbilt |
| Extreme pressure antiwear agent | Irgafos 168 | 1 | BASF |
| Corrosion inhibitors | CUVAN 484 | 0.03 | Vanderbilt |
| Rust inhibitor 1 | VANLUBE 601 | 0.05 | Vanderbilt |
| Rust preventive 2 | Irgalube 349 | 0.05 | BASF |
| Rust preventive 3 | Sarkosyl O | 0.2 | BASF |
| Demulsifier | LZ5957 | 0.02 | Lubrizol |
| Defoaming agent | LZ888 | 0.03 | Lubrizol |
Example 5
| Sample composition | Name of raw materials | Content (kg) | Manufacturer of the product |
| Natural gas synthetic oil | GTL420 | 68.49 | SHELL |
| Alkyl naphthaleneBase oil | NA-LUBE KR-007A | 20 | KING |
| Water repellent agent | PB2400 | 1 | DAELIM |
| High temperature antioxidant 1 | Irganox L 57 | 5 | BASF |
| High temperature antioxidant 2 | Irganox L 115 | 5 | BASF |
| Extreme pressure antiwear agent | Durad 220X | 0.1 | Chemtura |
| Corrosion inhibitors | CUVAN 303 | 0.1 | Vanderbilt |
| Rust inhibitor | VANLUBE RI-A | 0.25 | Vanderbilt |
| Demulsifier | LZ5957 | 0.05 | Lubrizol |
| Defoaming agent | LZ888 | 0.01 | Lubrizol |
Example 6
| Sample composition | Name of raw materials | Content (kg) | Manufacturer of the product |
| Natural gas synthetic oil | GTL420 | 38.59 | SHELL |
| Alkyl naphthalene base oil | NA-LUBE KR-007A | 50 | KING |
| Water repellent | PB2400 | 3 | DAELIM |
| High temperature antioxidant 1 | VANLUBE 407 | 3 | Vanderbilt |
| High temperature antioxidant 2 | VANLUBE BHC | 4 | Vanderbilt |
| Extreme pressure antiwear agent | Irgalube 349 | 1.0 | BASF |
| Corrosion inhibitors | CUVAN 485 | 0.05 | Vanderbilt |
| Rust inhibitor | VANLUBE RI-G | 0.3 | Vanderbilt |
| Demulsifier | LZ5957 | 0.03 | Lubrizol |
| Defoaming agent | LZ888 | 0.03 | Lubrizol |
Example 7
| Sample composition | Name of raw materials | Content (kg) | Manufacturer of the product |
| Natural gas synthetic oil | GTL420 | 19.42 | SHELL |
| Alkyl naphthalene base oil | NA-LUBE KR-007A | 70 | KING |
| Water repellent agent | PB2400 | 3 | DAELIM |
| High temperature antioxidant 1 | VANLUBE 407 | 2 | Vanderbilt |
| High temperature antioxidant 2 | Irganox L 115 | 2 | BASF |
| Extreme pressure antiwear agent | Irgalube 349 | 1.5 | BASF |
| Corrosion inhibitors | CUVAN 303 | 0.01 | Vanderbilt |
| Rust inhibitor | VANLUBE RI-G | 0.01 | Vanderbilt |
| Demulsifier | LZ5957 | 0.01 | Lubrizol |
| Defoaming agent | LZ888 | 0.05 | Lubrizol |
Comparative example 1
Comparative example 2
Comparative example 3
Comparative example 3 differs from example 5 in that in comparative example 3 the natural gas oil was replaced by API II/III hydrogenated base oil in CN106433936A, the other ingredients and the content of each ingredient were unchanged.
Example 8: characterization of
The characterization means in this example are shown in the following table:
summary of characterization experimental methods:
1. kinematic viscosity: GB/T265-88 petroleum product kinematic viscosity measurement method and dynamic viscometer algorithm, under a certain constant temperature, determine the time that a certain volume of liquid flows through a calibrated glass capillary viscometer under the gravity, and the product of the capillary constant and the flow time of the viscometer is the kinematic viscosity of the liquid measured at the temperature.
2. Flash point: the method for measuring the flash point and the burning point of GB/T-3536-2008 petroleum products by using the Cleveland open cup comprises the steps of putting a sample into a test cup to a specified scale line, quickly raising the temperature of the sample, and slowly raising the temperature at a constant rate when the flash point is close to. At specified temperature intervals, a small test flame is swept across the test cup so that the lowest temperature at which the test flame causes a vapor flash on the upper portion of the sample page is the flash point.
3. Evaporation loss: reference NOACK evaporative loss SH/T0059-1996: the sample was heated at 250 ℃ under constant pressure for 1 hour with an evaporation loss measuring apparatus, and the evaporated oil vapor was carried away by air. The evaporation loss of the sample was measured from the difference in mass between the sample before and after heating. In order to be closer to the working condition of the centrifugal air compressor, the evaporation loss is evaluated, and the experimental temperature and the experimental time are adjusted to 120 ℃, 3h and 200 ℃ and 3h respectively according to the experimental method.
4. Demulsification: GB/T7305-2003 petroleum and synthetic liquid water separation Performance measurement method, 40ml of sample and 40ml of distilled water are charged into a measuring cylinder and stirred at 54 ℃ or 82 ℃ for 5min, the time required for emulsion separation is recorded, and after refining for 30min or 60min, if the emulsion is not completely separated or the emulsion layer is not reduced to 3ml or less, the volumes of the oil layer (or synthetic liquid), water layer and emulsion layer at that time are recorded. The invention discusses centrifugal air compressor oil and is exemplified by ISO VG 32 viscosity grade, so the test temperature was selected to be 54 ℃.
5. Total acid number: the method for point titration of the acid value of the GB/T7304-. And manually or automatically drawing a potentiometric titration curve of the potential mV corresponding to the titration volume, taking the obvious jump point as an end point, and taking the corresponding potential value of the newly-prepared aqueous acid or alkali buffer solution as the titration end point if no obvious jump point exists.
6. Hydrolytic stability: the Beverage-bottle method, also called Beverage bottle experimental method, is to put the mixture of 75g oil sample and 25g water in a pressure-resistant Beverage bottle, put polished copper sheet as hydrolysis catalyst into it, put it in a specific hydrolysis stability test box after sealing, and rotate the bottle end to end for 48h at 93 ℃. After the experiment is finished, cooling the system to room temperature, filtering and separating an oil-water mixture, and measuring the acid value and viscosity of an oil phase, the total acidity of a water layer and the mass change of a copper sheet. The evaluation of the experimental result of the invention is based on the oil phase acid value.
7. Air release performance: SH/T0308-2004 lube oil air release value determination method heats the sample to 25,50 or 75 deg.C, and stirs the sample vigorously by blowing excess compressed air into the sample, the air forming small bubbles in the sample, i.e. entrainment air. The time for the air volume of the spray to decrease to 0.2% was recorded after the air was stopped. The test temperature of the invention is selected to be 50 ℃.
8. Foam tendency/foam stability: GB/T12579-2002 lubricating oil foam characteristic determination method comprises the steps of blowing air with a constant flow rate for 5min at 24 ℃, standing for 10min, determining the volume of foam in each sample at the end of each period, taking a second sample, performing the test at 93.5 ℃, and repeating the test at 24 ℃ after the foam disappears.
9. Rotating the oxygen bomb: SH/T0193-2008 lubricating oil oxidation stability determination rotating oxygen bomb method, a sample, water and a copper catalyst coil are placed in a glass sample holder with a cover and placed in an oxygen bomb with a pressure gauge. Oxygen gas with the pressure of 620kPa is filled into the oxygen bomb, and the oxygen bomb is put into a specified constant-temperature oil bath (the temperature of turbine oil is 150 ℃, and the temperature of mineral insulating oil is 140 ℃) so that the oxygen bomb axially rotates at the speed of 100r/min and forms an angle of 30 degrees with the horizontal plane. The time (min) required for the test to reach the specified pressure drop is the oxidation stability of the sample. The test temperature of the invention is selected to be 150 ℃.
10. Differential scanning thermal analysis: under certain conditions of high temperature, high pressure and oxidation, a thin-film oil sample in a container is heated, and the instrument records the thermal change condition of the oil product. The time at which the oil undergoes a significant exothermic reaction, i.e., the Oxidation Induction Time (OIT), is recorded.
11. Total acid number after oxidation corrosion test: the total acid value after oil oxidation corrosion is measured by a measuring point position titration method of the acid value of GB/T7304-. And manually drawing or automatically drawing a potentiometric titration curve of the potential mV corresponding to the titration volume, taking the obvious jump point as an end point, and taking the corresponding potential value of the newly prepared aqueous acid or alkali buffer solution as a titration end point if no obvious jump point exists.
12. Copper sheet corrosion: GB/T5096-2017 petroleum product copper sheet corrosion test method comprises the steps of immersing a polished copper sheet in a sample with a certain volume, heating to a specified temperature according to the product type of the sample, keeping for a certain time, taking out the copper sheet when a heating period is finished, comparing the copper sheet with a copper sheet corrosion standard color plate after washing, evaluating the color change condition of the copper sheet, and determining the corrosion grade. The experimental conditions adopted in the present discovery were a temperature of 100 ℃ and an experimental time of 3 hours.
13. Liquid-phase corrosion: GB/T11143-. The test period adopted by the invention is 24 h.
TABLE 4 examples and comparative product Performance test results
From the experimental results in table 4, the evaporation loss of the centrifugal compressor oil of the present application at 120 ℃ is not more than 0.2, and the evaporation loss at 200 ℃ is not more than 3.4; indicating that there is less oil loss in this application. From the data of the change of the acid value after hydrolysis of the demulsification performance index and the hydrolysis stability test in the application, the compressor oil in the application has better demulsification and hydrolysis resistance characteristics. From the data for the rotating bomb test time and the PDSC differential scan thermal analysis oxidation induction period time and the total acid number after the oxidative corrosion test, it can be seen that the compressor oil in this application has a longer oxidation life and better deposit control capability.
Example 5 comparing with comparative examples 1-3, respectively, it can be seen that the combination of the natural gas synthetic oil and the alkyl naphthalene base oil in the present application produces a synergistic effect; the centrifugal compressor oil herein performs better than a single component alone, i.e., a natural gas synthetic oil alone or an alkyl naphthalene base oil alone, or by replacing it with another component.
In addition, this embodiment also tests the service performance of the product, as shown in table 5 below, the test method is: the centrifugal air compressor oil of example 5 of the present invention and the centrifugal air compressor oils of comparative examples 1, 2 and 3 described above were subjected to oil tests in two centrifugal compressors of the ingeniously CENTAC type, respectively. The running time is 20000 hours, and the index changes of viscosity, acid value, insoluble substances and demulsification performance are detected by sampling.
TABLE 5 test results of the examples and comparative products' performance
According to the experimental data of the table 5, it can be seen that the indexes of the embodiments of the present invention are obviously better than those of the comparative examples after the centrifugal compressor actually operates for 20000 hours, and the performance margin is larger. Therefore, the centrifugal compressor oil can provide the centrifugal compressor with the service life of more than 20000 hours.
In summary, the centrifugal compressor oil provided by the invention has the following advantages:
a) the components are reasonable, the sensitivity of the additive is good, and the performance is stable;
b) the excellent high-temperature oxidation resistance can effectively inhibit the generation of harmful sediments such as oil sludge, paint films, carbon deposition, colloid and the like;
c) the wear-resistant, rust-resistant and corrosion-resistant capability is strong, the workpiece is protected from being damaged, and the service life of equipment is prolonged;
d) the evaporation loss is small, and the oil consumption loss is low;
e) the service life is longer than 20000 hours, and the oil change period is long;
f) excellent water resistance, emulsification resistance and hydrolysis resistance;
g) the maintenance cost of the centrifugal compressor is greatly reduced, and the economy is good.
The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, for the system embodiment, since it is substantially similar to the method embodiment, the description is simple, and for the relevant points, reference may be made to the partial description of the method embodiment.
The above description is only an example of the present application and is not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.
Claims (10)
1. The centrifugal compressor oil is characterized by comprising the following raw materials in parts by weight: 80-100 parts of base oil and 0.01-16 parts of additive, wherein the base oil comprises 18-70 parts of natural gas synthetic oil and 20-70 parts of alkyl naphthalene base oil;
the natural gas synthetic oil is GTL420 or GTL430 produced by SHELL company;
the alkyl naphthalene base oil is one of Synesstic 5 produced by ExxonMobil, Synesstic 12 produced by ExxonMobil and NA-LUBE KR-007A produced by KING.
2. A centrifugal compressor oil according to claim 1, characterized in that: the additive comprises, by weight, 1-3 parts of a hydrophobing agent, 4-10 parts of a high-temperature antioxidant, 0.1-1.5 parts of an extreme pressure antiwear agent, 0.01-0.1 part of a corrosion inhibitor, 0.01-0.5 part of an antirust agent, 0.01-0.05 part of a demulsifier and 0.01-0.05 part of a defoaming agent.
3. A centrifugal compressor oil according to claim 2, characterized in that: the hydrophobing agent is polyisobutylene, which is PB2400 with an average molecular weight of 2450.
4. A centrifugal compressor oil according to claim 2, characterized in that: the high-temperature antioxidant comprises one or more of macromolecular phenol, alkylated diphenylamine and naphthylamine.
5. A centrifugal compressor oil according to claim 4, characterized in that: the molecular weight of the macromolecular phenol is 900-1100, and the alkyl C-atom number in the alkylated diphenylamine is C4～C8The naphthylamine is N-phenyl-alpha-naphthylamine or N-phenyl-beta-naphthylamine.
6. A centrifugal compressor oil according to claim 2, characterized in that: the extreme pressure antiwear agent is a phosphate type antiwear agent, and the phosphate type antiwear agent comprises one or more of phenyl phosphite ester and phenyl thiophosphate ester.
7. A centrifugal compressor oil according to claim 2, characterized in that: the corrosion inhibitor comprises one or more of benzotriazole and derivatives thereof, thiadiazole and derivatives thereof, and the antirust agent is organic acid, organic amine or nitrogen-containing heterocyclic compound.
8. A centrifugal compressor oil according to claim 2, characterized in that: the demulsifier is an oil-soluble nonionic surfactant, the oil-soluble nonionic surfactant is a polymer of ethylene oxide and propylene oxide, and the molecular weight of the polymer is 1500-10000.
9. A centrifugal compressor oil according to claim 2, characterized in that: the defoaming agent is a silicone defoaming agent, the silicone defoaming agent is a siloxane defoaming agent, and the viscosity of the siloxane defoaming agent is 50-350 cst.
10. A method of making a centrifugal compressor oil according to claim 2, comprising:
s1: adding 45-55 wt% of natural gas synthetic oil and 45-55 wt% of alkyl naphthalene base oil into a blending kettle for stirring, wherein the stirring temperature is 48-52 ℃, and the stirring speed is 90-110 r/min;
s2: sequentially adding a hydrophobic agent, a high-temperature antioxidant, an extreme pressure antiwear agent, a corrosion inhibitor, an antirust agent and the rest of the natural gas synthetic oil and the alkyl naphthalene base oil, and continuously stirring for 1-2 hours;
s3: and sequentially adding a demulsifier and a defoaming agent, stopping heating, continuously stirring, and cooling to room temperature to obtain the centrifugal compressor oil.
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| CN111100738A (en) * | 2018-10-29 | 2020-05-05 | 中国石油化工股份有限公司 | Oxidation-resistant long-life zinc-free hydraulic fluid composition and preparation method thereof |
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