CN103725335B - Preparation method of corrosion inhibitor of methanol gasoline - Google Patents
Preparation method of corrosion inhibitor of methanol gasoline Download PDFInfo
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- CN103725335B CN103725335B CN201310605936.2A CN201310605936A CN103725335B CN 103725335 B CN103725335 B CN 103725335B CN 201310605936 A CN201310605936 A CN 201310605936A CN 103725335 B CN103725335 B CN 103725335B
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- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 title claims abstract description 57
- 238000005260 corrosion Methods 0.000 title claims abstract description 18
- 230000007797 corrosion Effects 0.000 title claims abstract description 17
- 239000003112 inhibitor Substances 0.000 title claims abstract description 7
- 238000002360 preparation method Methods 0.000 title claims abstract description 6
- 239000000203 mixture Substances 0.000 claims abstract description 27
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 claims abstract description 18
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims abstract description 18
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 12
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 claims abstract description 12
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims abstract description 12
- GLDOVTGHNKAZLK-UHFFFAOYSA-N octadecan-1-ol Chemical compound CCCCCCCCCCCCCCCCCCO GLDOVTGHNKAZLK-UHFFFAOYSA-N 0.000 claims abstract description 12
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 claims abstract description 8
- JOXIMZWYDAKGHI-UHFFFAOYSA-N toluene-4-sulfonic acid Chemical compound CC1=CC=C(S(O)(=O)=O)C=C1 JOXIMZWYDAKGHI-UHFFFAOYSA-N 0.000 claims abstract description 7
- XMNIXWIUMCBBBL-UHFFFAOYSA-N 2-(2-phenylpropan-2-ylperoxy)propan-2-ylbenzene Chemical compound C=1C=CC=CC=1C(C)(C)OOC(C)(C)C1=CC=CC=C1 XMNIXWIUMCBBBL-UHFFFAOYSA-N 0.000 claims abstract description 6
- XYLMUPLGERFSHI-UHFFFAOYSA-N alpha-Methylstyrene Chemical class CC(=C)C1=CC=CC=C1 XYLMUPLGERFSHI-UHFFFAOYSA-N 0.000 claims abstract description 6
- QRUDEWIWKLJBPS-UHFFFAOYSA-N benzotriazole Chemical compound C1=CC=C2N[N][N]C2=C1 QRUDEWIWKLJBPS-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000012964 benzotriazole Substances 0.000 claims abstract description 6
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 claims abstract description 6
- TVDSBUOJIPERQY-UHFFFAOYSA-N prop-2-yn-1-ol Chemical compound OCC#C TVDSBUOJIPERQY-UHFFFAOYSA-N 0.000 claims abstract description 6
- 125000005591 trimellitate group Chemical group 0.000 claims abstract description 6
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 20
- -1 polyoxyethylene Polymers 0.000 claims description 17
- 229920003171 Poly (ethylene oxide) Polymers 0.000 claims description 10
- 239000013543 active substance Substances 0.000 claims description 10
- 238000006243 chemical reaction Methods 0.000 claims description 10
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 claims description 10
- 239000004322 Butylated hydroxytoluene Substances 0.000 claims description 5
- WSVQZZFFMBFCKH-UHFFFAOYSA-N [Na].C(CCCCCCCCCCCCCCCCC)C1=C(C=CC=C1)S(=O)(=O)O Chemical compound [Na].C(CCCCCCCCCCCCCCCCC)C1=C(C=CC=C1)S(=O)(=O)O WSVQZZFFMBFCKH-UHFFFAOYSA-N 0.000 claims description 5
- 229940095259 butylated hydroxytoluene Drugs 0.000 claims description 5
- GOQYKNQRPGWPLP-UHFFFAOYSA-N n-heptadecyl alcohol Natural products CCCCCCCCCCCCCCCCCO GOQYKNQRPGWPLP-UHFFFAOYSA-N 0.000 claims description 5
- 239000012299 nitrogen atmosphere Substances 0.000 claims description 5
- 238000003756 stirring Methods 0.000 claims description 5
- 238000010792 warming Methods 0.000 claims description 5
- 238000005406 washing Methods 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 4
- 229910052742 iron Inorganic materials 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 abstract description 5
- 239000002184 metal Substances 0.000 abstract description 5
- 239000003921 oil Substances 0.000 abstract description 5
- 239000000654 additive Substances 0.000 abstract description 4
- 230000000996 additive effect Effects 0.000 abstract description 4
- 238000002485 combustion reaction Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 abstract description 2
- 239000007864 aqueous solution Substances 0.000 abstract 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract 2
- VKYKSIONXSXAKP-UHFFFAOYSA-N hexamethylenetetramine Chemical compound C1N(C2)CN3CN1CN2C3 VKYKSIONXSXAKP-UHFFFAOYSA-N 0.000 abstract 2
- IKEHOXWJQXIQAG-UHFFFAOYSA-N 2-tert-butyl-4-methylphenol Chemical compound CC1=CC=C(O)C(C(C)(C)C)=C1 IKEHOXWJQXIQAG-UHFFFAOYSA-N 0.000 abstract 1
- 239000002202 Polyethylene glycol Substances 0.000 abstract 1
- 239000012298 atmosphere Substances 0.000 abstract 1
- 235000010299 hexamethylene tetramine Nutrition 0.000 abstract 1
- 239000004312 hexamethylene tetramine Substances 0.000 abstract 1
- 229960004011 methenamine Drugs 0.000 abstract 1
- 229910052757 nitrogen Inorganic materials 0.000 abstract 1
- 229920001223 polyethylene glycol Polymers 0.000 abstract 1
- 239000004094 surface-active agent Substances 0.000 abstract 1
- 238000010998 test method Methods 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229940077388 benzenesulfonate Drugs 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- KTWOOEGAPBSYNW-UHFFFAOYSA-N ferrocene Chemical compound [Fe+2].C=1C=C[CH-]C=1.C=1C=C[CH-]C=1 KTWOOEGAPBSYNW-UHFFFAOYSA-N 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- HNNQYHFROJDYHQ-UHFFFAOYSA-N 3-(4-ethylcyclohexyl)propanoic acid 3-(3-ethylcyclopentyl)propanoic acid Chemical compound CCC1CCC(CCC(O)=O)C1.CCC1CCC(CCC(O)=O)CC1 HNNQYHFROJDYHQ-UHFFFAOYSA-N 0.000 description 1
- NKFIBMOQAPEKNZ-UHFFFAOYSA-N 5-amino-1h-indole-2-carboxylic acid Chemical compound NC1=CC=C2NC(C(O)=O)=CC2=C1 NKFIBMOQAPEKNZ-UHFFFAOYSA-N 0.000 description 1
- 229910052684 Cerium Inorganic materials 0.000 description 1
- 229910001122 Mischmetal Inorganic materials 0.000 description 1
- NWGKJDSIEKMTRX-AAZCQSIUSA-N Sorbitan monooleate Chemical compound CCCCCCCC\C=C/CCCCCCCC(=O)OC[C@@H](O)[C@H]1OC[C@H](O)[C@H]1O NWGKJDSIEKMTRX-AAZCQSIUSA-N 0.000 description 1
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical compound [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 239000003209 petroleum derivative Substances 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 229960004418 trolamine Drugs 0.000 description 1
- 230000004580 weight loss Effects 0.000 description 1
Landscapes
- Preventing Corrosion Or Incrustation Of Metals (AREA)
- Lubricants (AREA)
Abstract
The invention provides a preparation method of a corrosion inhibitor of methanol gasoline, and belongs to the technical field of metal corrosion protection. The preparation method comprises steps as follows: alpha-methylstyrene dimer, maleic anhydride, dicumyl peroxide and dimethylbenzene are added into a reactor, and then, the mixture is heated in an atmosphere of nitrogen for reacting; after the mixture is cooled to the room temperature, octadecanol, polyethylene glycol, p-toluenesulfonic acid, n-butyl alcohol and ethyl acetate are added, the mixture is heated for reacting and then cooled to the room temperature, and a mixture I is obtained; the mixture I is washed with a sulfuric acid aqueous solution, then washed with an NaOH aqueous solution and finally washed with an aqueous solution, and a mixture II is obtained; and benzotriazole, 2, 6-tert-butyl-4-methyl phenol, hexamethylene tetramine, ethanol, propargyl alcohol, trimellitate, a surface active agent and a combustion improver are added into the mixture II and uniformly stirred, and the corrosion inhibitor is obtained. The provided methanol gasoline has good solubility with various oils, the additive amount is small, and the corrosion-resistant effect is superior to that of a similar product.
Description
Technical field
The invention provides a kind of corrosion inhibitor of methanol gasoline, belong to technical field of metal corrosion protection.
Background technology
Methanol gasoline because of in use sufficient combustion, impurity is few, environmental pollution is little, energy-conserving and environment-protective and low price obtain human consumer gradually accreditation, require that cry one tunnel of promoting is surging.A large amount of painstaking effort have also been poured in the popularization of methanol gasoline by country, carry out repeatedly, scientific experiment and test for a long time, to the exploitativeness from aspect inspection methanol gasolines such as security, economy, sustainabilities.Although the advantage of methanol gasoline is apparent, national methanol gasoline use standard but slowly have no appearance, prudent attitude is held to promoting the use of of methanol gasoline by visible country.
Methanol gasoline has corrosive nature to engine and component thereof, particularly to the rubber type of material corrosion in component obviously, reduces weather resistance and the security of automobile.Therefore the automaker such as general, Ford, Chrysler of the U.S. clearly represents in user manual: use the vehicle of methanol gasoline infringement to occur not within warranty coverage, and also explicitly calls in " world fuel standards " and do not allow to use methyl alcohol.
Summary of the invention
The object of the invention is: a kind of additive that methanol gasoline can be suppressed to corrode metal vessel is provided, adopts following technical scheme:
A preparation method for the corrosion inhibitor of methanol gasoline, comprises the steps:
1st step, by weight, add alpha-methyl styrene dimer 20 ~ 30 parts, maleic anhydride 15 ~ 20 parts, dicumyl peroxide 10 ~ 15 parts, dimethylbenzene 30 ~ 40 parts in the reactor, then in a nitrogen atmosphere, be heated to 130 ~ 140 DEG C, reaction is made to keep 4 ~ 6h, after being cooled to room temperature, add stearyl alcohol 15 ~ 30 parts, polyoxyethylene glycol 10 ~ 30 parts, tosic acid 2 ~ 4 parts, propyl carbinol 5 ~ 8 parts, ethyl acetate 15 ~ 20 parts, then 140 ~ 150 DEG C are warming up to, keep reaction 8 ~ 12h, be cooled to room temperature, obtain mixture I;
2nd step, mixture I first to be washed with the aqueous sulfuric acid of mass percent 1% ~ 3%, then use the NaOH solution washing of mass percent 1% ~ 3%, then wash with water, obtain mixtures II;
3rd step, in mixtures II, add benzotriazole 5 ~ 10 parts, 2 by weight, 6-Butylated Hydroxytoluene 6 ~ 17 parts, vulkacit H 4 ~ 8 parts, ethanol 20 ~ 30 parts, propiolic alcohol 3 ~ 8 parts, trimellitate 4 ~ 8 parts, 3 ~ 8 parts, tensio-active agent, ignition dope 4 ~ 8 parts, stir.
Preferred, described polyoxyethylene glycol refers to poly(oxyethylene glycol) 400.
Preferred, described tensio-active agent refers to sodium alkyl benzene sulfonate, trolamine, span 80.
Preferred, described sodium alkyl benzene sulfonate refers to octadecyl benzenesulfonic acid sodium.
Preferred, described ignition dope refers to that oil solubility nanometer ferrocene, calcium naphthenate, iron naphthenate, naphthenic acid are containing the one in cerium mischmetal.
beneficial effect
Methanol gasoline provided by the invention and oil products intermiscibility good, addition is few.Adopt petroleum products copper strip test method to detect anti-corrosion effects of the present invention, be better than like product.
Embodiment
Embodiment 1
1st step, add alpha-methyl styrene dimer 20Kg, maleic anhydride 15Kg, dicumyl peroxide 10Kg, dimethylbenzene 30Kg in the reactor, then in a nitrogen atmosphere, be heated to 130 DEG C, make reaction keep 4h, after being cooled to room temperature, add stearyl alcohol 15Kg, polyoxyethylene glycol 10Kg, tosic acid 2Kg, propyl carbinol 5Kg, ethyl acetate 15Kg, then 140 DEG C are warming up to, keep reaction 8h, be cooled to room temperature, obtain mixture I;
2nd step, mixture I first to be washed with the aqueous sulfuric acid of mass percent 1%, then use the NaOH solution washing of mass percent 1%, then wash with water, obtain mixtures II;
3rd step, in mixtures II, add benzotriazole 5Kg, 2,6-Butylated Hydroxytoluene 6Kg, vulkacit H 4Kg, ethanol 20Kg, propiolic alcohol 3Kg, trimellitate 4Kg, tensio-active agent 3Kg, ignition dope 4Kg, stir.
Described polyoxyethylene glycol refers to poly(oxyethylene glycol) 400, and described tensio-active agent refers to octadecyl benzenesulfonic acid sodium, and described ignition dope refers to iron naphthenate.
Embodiment 2
1st step, add alpha-methyl styrene dimer 30Kg, maleic anhydride 20Kg, dicumyl peroxide 15Kg, dimethylbenzene 40Kg in the reactor, then in a nitrogen atmosphere, be heated to 140 DEG C, make reaction keep 6h, after being cooled to room temperature, add stearyl alcohol 30Kg, polyoxyethylene glycol 30Kg, tosic acid 4Kg, propyl carbinol 8Kg, ethyl acetate 20Kg, then 150 DEG C are warming up to, keep reaction 12h, be cooled to room temperature, obtain mixture I;
2nd step, mixture I first to be washed with the aqueous sulfuric acid of mass percent 3%, then use the NaOH solution washing of mass percent 3%, then wash with water, obtain mixtures II;
3rd step, in mixtures II, add benzotriazole 10Kg, 2,6-Butylated Hydroxytoluene 17Kg, vulkacit H 8Kg, ethanol 30Kg, propiolic alcohol 8Kg, trimellitate 8Kg, tensio-active agent 8Kg, ignition dope 8Kg, stir.
Described polyoxyethylene glycol refers to poly(oxyethylene glycol) 400, and described tensio-active agent refers to octadecyl benzenesulfonic acid sodium, and described ignition dope refers to oil solubility nanometer ferrocene.
Embodiment 3
1st step, add alpha-methyl styrene dimer 25Kg, maleic anhydride 16Kg, dicumyl peroxide 13Kg, dimethylbenzene 35Kg in the reactor, then in a nitrogen atmosphere, be heated to 135 DEG C, make reaction keep 5h, after being cooled to room temperature, add stearyl alcohol 20Kg, polyoxyethylene glycol 20Kg, tosic acid 3Kg, propyl carbinol 7Kg, ethyl acetate 17Kg, then 145 DEG C are warming up to, keep reaction 10h, be cooled to room temperature, obtain mixture I;
2nd step, mixture I first to be washed with the aqueous sulfuric acid of mass percent 2%, then use the NaOH solution washing of mass percent 2%, then wash with water, obtain mixtures II;
3rd step, in mixtures II, add benzotriazole 7Kg, 2,6-Butylated Hydroxytoluene 9Kg, vulkacit H 5Kg, ethanol 25Kg, propiolic alcohol 7Kg, trimellitate 5Kg, tensio-active agent 6Kg, ignition dope 6Kg, stir.
Described polyoxyethylene glycol refers to poly(oxyethylene glycol) 400, and described tensio-active agent refers to octadecyl benzenesulfonic acid sodium, and described ignition dope refers to iron naphthenate.
Performance test
Test method is with reference to GB/T378 " motor spirit copper strip test method ".Immerse in quantitative formation testing with the pure metal sheet polishing, clean, dry, keep after certain hour at normal temperatures, take out tinsel and do not soak tinsel and compare.Observe color and the surface change of tinsel, determine whether corrosion, calculate the percent weight loss (corrosion rate) of tinsel.
The oil product used is commercial methanol gasoline, and the usage quantity of additive is 0.05% (w/w), corrosion temperature 40 DEG C, corrosion number of days 40d.
Test-results is as following table.
| Do not add | Embodiment 1 | Embodiment 2 | Embodiment 3 | |
| Corrosion inhibition for metal rate % (30d, 40 DEG C) | 47.4 | 90.5 | 91.1 | 93.2 |
As can be seen from the table, additive provided by the invention can prevent the corrosion of tinsel effectively.
Claims (1)
1. a preparation method for the corrosion inhibitor of methanol gasoline, is characterized in that, step is as follows:
1st step, add alpha-methyl styrene dimer 25Kg, maleic anhydride 16Kg, dicumyl peroxide 13Kg, dimethylbenzene 35Kg in the reactor, then in a nitrogen atmosphere, be heated to 135 DEG C, make reaction keep 5h, after being cooled to room temperature, add stearyl alcohol 20Kg, polyoxyethylene glycol 20Kg, tosic acid 3Kg, propyl carbinol 7Kg, ethyl acetate 17Kg, then 145 DEG C are warming up to, keep reaction 10h, be cooled to room temperature, obtain mixture I;
2nd step, mixture I first to be washed with the aqueous sulfuric acid of mass percent 2%, then use the NaOH solution washing of mass percent 2%, then wash with water, obtain mixtures II;
3rd step, in mixtures II, add benzotriazole 7Kg, 2,6-Butylated Hydroxytoluene 9Kg, vulkacit H 5Kg, ethanol 25Kg, propiolic alcohol 7Kg, trimellitate 5Kg, tensio-active agent 6Kg, ignition dope 6Kg, stir;
Described polyoxyethylene glycol refers to poly(oxyethylene glycol) 400, and described tensio-active agent refers to octadecyl benzenesulfonic acid sodium, and described ignition dope refers to iron naphthenate.
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| CN201310605936.2A CN103725335B (en) | 2013-11-26 | 2013-11-26 | Preparation method of corrosion inhibitor of methanol gasoline |
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| CN201310605936.2A CN103725335B (en) | 2013-11-26 | 2013-11-26 | Preparation method of corrosion inhibitor of methanol gasoline |
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| CN103725335A CN103725335A (en) | 2014-04-16 |
| CN103725335B true CN103725335B (en) | 2015-05-20 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| EP3026101A1 (en) | 2014-11-26 | 2016-06-01 | Borealis AG | Wash oil for use as an antifouling agent in gas compressors |
| CN104845681B (en) * | 2015-05-25 | 2016-11-30 | 马西岐 | A kind of preparation method of the corrosion inhibitor of methanol gasoline |
| CN105567348B (en) * | 2016-01-15 | 2017-12-19 | 俞权锋 | A kind of methanol gasoline corrosion inhibitor |
| CN107880953B (en) * | 2017-11-03 | 2019-11-29 | 深圳市广昌达石油添加剂有限公司 | Corrosion inhibitor and its preparation method and application |
| CN110272767A (en) * | 2018-03-15 | 2019-09-24 | 黄建达 | High alcohol cleaning green fuel |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101812332A (en) * | 2009-11-30 | 2010-08-25 | 济南开发区星火科学技术研究院 | Ethanol gasoline and preparation method thereof |
| CN101985569A (en) * | 2010-03-18 | 2011-03-16 | 大冶物华矿冶科技有限公司 | Methanol gasoline for vehicles using high-cleanliness and large-proportion biomass energy |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101812332A (en) * | 2009-11-30 | 2010-08-25 | 济南开发区星火科学技术研究院 | Ethanol gasoline and preparation method thereof |
| CN101985569A (en) * | 2010-03-18 | 2011-03-16 | 大冶物华矿冶科技有限公司 | Methanol gasoline for vehicles using high-cleanliness and large-proportion biomass energy |
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