GB2064985A - A mixed corrosion inhibitor - Google Patents
A mixed corrosion inhibitor Download PDFInfo
- Publication number
- GB2064985A GB2064985A GB7942250A GB7942250A GB2064985A GB 2064985 A GB2064985 A GB 2064985A GB 7942250 A GB7942250 A GB 7942250A GB 7942250 A GB7942250 A GB 7942250A GB 2064985 A GB2064985 A GB 2064985A
- Authority
- GB
- United Kingdom
- Prior art keywords
- weight
- inhibitor
- corrosion
- mixed
- gas
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000003112 inhibitor Substances 0.000 title claims abstract description 49
- 230000007797 corrosion Effects 0.000 title claims description 39
- 238000005260 corrosion Methods 0.000 title claims description 39
- PAFZNILMFXTMIY-UHFFFAOYSA-N cyclohexylamine Chemical compound NC1CCCCC1 PAFZNILMFXTMIY-UHFFFAOYSA-N 0.000 claims abstract description 18
- YNAVUWVOSKDBBP-UHFFFAOYSA-N Morpholine Chemical compound C1COCCN1 YNAVUWVOSKDBBP-UHFFFAOYSA-N 0.000 claims abstract description 14
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 11
- REYJJPSVUYRZGE-UHFFFAOYSA-N Octadecylamine Chemical compound CCCCCCCCCCCCCCCCCCN REYJJPSVUYRZGE-UHFFFAOYSA-N 0.000 claims abstract description 11
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims abstract description 10
- OAKJQQAXSVQMHS-UHFFFAOYSA-N Hydrazine Chemical compound NN OAKJQQAXSVQMHS-UHFFFAOYSA-N 0.000 claims abstract description 10
- 150000001412 amines Chemical class 0.000 claims abstract description 9
- 235000014113 dietary fatty acids Nutrition 0.000 claims abstract description 9
- 150000002148 esters Chemical class 0.000 claims abstract description 9
- 229930195729 fatty acid Natural products 0.000 claims abstract description 9
- 239000000194 fatty acid Substances 0.000 claims abstract description 9
- 150000004665 fatty acids Chemical class 0.000 claims abstract description 9
- 150000004670 unsaturated fatty acids Chemical class 0.000 claims abstract description 9
- 235000021122 unsaturated fatty acids Nutrition 0.000 claims abstract description 9
- 229910021529 ammonia Inorganic materials 0.000 claims abstract description 5
- MTNDZQHUAFNZQY-UHFFFAOYSA-N imidazoline Chemical compound C1CN=CN1 MTNDZQHUAFNZQY-UHFFFAOYSA-N 0.000 claims abstract description 5
- 239000002904 solvent Substances 0.000 claims abstract description 5
- 229910052751 metal Inorganic materials 0.000 claims description 18
- 239000002184 metal Substances 0.000 claims description 18
- 239000007789 gas Substances 0.000 claims description 14
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 12
- 229930195733 hydrocarbon Natural products 0.000 claims description 10
- 239000004215 Carbon black (E152) Substances 0.000 claims description 8
- 150000002430 hydrocarbons Chemical class 0.000 claims description 8
- 238000004519 manufacturing process Methods 0.000 claims description 8
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 8
- -1 aliphatic amines Chemical class 0.000 claims description 6
- RAXXELZNTBOGNW-UHFFFAOYSA-N imidazole Natural products C1=CNC=N1 RAXXELZNTBOGNW-UHFFFAOYSA-N 0.000 claims description 6
- 230000005764 inhibitory process Effects 0.000 claims description 6
- 238000009533 lab test Methods 0.000 claims description 6
- 150000002739 metals Chemical class 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 4
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 claims description 4
- 239000002253 acid Substances 0.000 claims description 4
- 150000007513 acids Chemical class 0.000 claims description 4
- 150000001298 alcohols Chemical class 0.000 claims description 4
- 239000003034 coal gas Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 239000003345 natural gas Substances 0.000 claims description 4
- 239000000523 sample Substances 0.000 claims description 4
- 239000000126 substance Substances 0.000 claims description 4
- MOOGYWRPKHQBEK-UHFFFAOYSA-N 4,5-dihydro-1h-imidazole;1h-imidazole Chemical class C1CN=CN1.C1=CNC=N1 MOOGYWRPKHQBEK-UHFFFAOYSA-N 0.000 claims description 2
- 235000013162 Cocos nucifera Nutrition 0.000 claims description 2
- 244000060011 Cocos nucifera Species 0.000 claims description 2
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 claims description 2
- 230000001476 alcoholic effect Effects 0.000 claims description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 2
- 239000003139 biocide Substances 0.000 claims description 2
- 159000000007 calcium salts Chemical class 0.000 claims description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 2
- 239000001569 carbon dioxide Substances 0.000 claims description 2
- 150000003841 chloride salts Chemical class 0.000 claims description 2
- 150000001875 compounds Chemical class 0.000 claims description 2
- 239000007859 condensation product Substances 0.000 claims description 2
- 238000005336 cracking Methods 0.000 claims description 2
- 238000004090 dissolution Methods 0.000 claims description 2
- 150000003840 hydrochlorides Chemical class 0.000 claims description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 2
- 239000011707 mineral Substances 0.000 claims description 2
- 150000007524 organic acids Chemical group 0.000 claims description 2
- 239000001301 oxygen Substances 0.000 claims description 2
- 229910052760 oxygen Inorganic materials 0.000 claims description 2
- 239000002245 particle Substances 0.000 claims description 2
- 239000004033 plastic Substances 0.000 claims description 2
- 229920003023 plastic Polymers 0.000 claims description 2
- 229920000728 polyester Polymers 0.000 claims description 2
- 230000001681 protective effect Effects 0.000 claims description 2
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 claims description 2
- 239000004576 sand Substances 0.000 claims description 2
- 238000003860 storage Methods 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 238000000034 method Methods 0.000 claims 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
- C09K8/54—Compositions for in situ inhibition of corrosion in boreholes or wells
-
- 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)
- General Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Wood Science & Technology (AREA)
- Preventing Corrosion Or Incrustation Of Metals (AREA)
Abstract
The inhibitor is composed of active components comprising 5 to 30% by weight of an alkalizer (such as morpholine, cyclohexylamine, ammonia and/or hydrazine), 5 to 50% by weight of a film-forming amine with C10 to C25 (such as octadecylamine) and 10 to 40% by weight of an alkanolamide of an unsaturated fatty acid. It may also contain imidazoline or its derivative in a concentration from 5 to 25% by weight. In addition it may contain an ester of a fatty acid with a higher alcohol in a concentration from 5 to 25% by weight. In its form ready for use the inhibitor contains 5 to 50 parts of a solvent per one part of the active components.
Description
SPECIFICATION
Mixed corrosion inhibitor
The invention relates to a mixed corrosion inhibitor for metals, particularly for the protection of metal parts of equipment serving for the production, storage and transport of natural gas or coal gas.
Some components of gas such as carbon dioxide, hydrogen sulphide, oxygen and organic acids form together with water corrosion active medium which causes damage to metal containers, pipes, armatures and to other metal accessories. The action of these components is frequently enhanced by entrained particles either of chemical nature, such as chlorides, or of mechanical nature, such as sand. The form of the corrosion attack can be uniform, pitting and intercrystalline, and combined with abrasive action of the entrained minerals.
A further form of corrosion, as a consequence of material fatigue, is the so called corrosion cracking.
Restriction of the corrosion of this system is very important. Principles of anticorrosive protection are known. It is possible either to choose expensive corrosion-resistant metals orto form a layer of plastics material on the metal surface or to apply the corrosion inhibitors when using cheaper metals.
Substances, such as alkylphenols, calcium salts of sulphonic acids, polyesters, hydrochlorides of aliphatic amines, mixtures of alkylpyridinium bases, condensation products of pyridine with chloromethylene hydrocarbons and similar compounds are used in practice as a corrosion inhibitors.
Mixed corrosion inhibitor according to the invention is composed of active components containing 5 to 30% by weight of volatile alkalizers, such as morpholine, cyclohexylamine, ammonia, and/or hydrazine, 5 to 50% by weight of filmforming amines with C10 to C25, such as octadecylamine, and 10 to 40% by weight of alkanolamides of unsaturated fatty acids or imidazoline and its derivatives in a concentration from 5 to 25% by weight, or esters of fatty acids with higher alcohols in concentration from 5 to 25% by weight. In this case using amines further acting as biocide agents.
According to further feature the inhibitor contains 5 to 50 parts of solvent, such as methanol, ethanol, a hydrocarbon condensate or their mixture, per 1 part of the active components.
The mixed corrosion inhibitor is first applied to probes for coal gas or natural gas production. After dissolution in methanol, ethanol or in a hydrocarbon condensate the inhibitor is charged by a pump as a 2 to 20% solution into the probe in the amount of 2001 per one million of cubic meters of the gas. Gas production begins after 24 hours of action of the inhibitor which forms protective film on the metal.
After the beginning of gas production the first week the charge is 200 I/one million of cubic meters of gas, the next week 50 I/one million of cubic meters of gas and then always 10 I/one million of cubic meters of gas.
The invention will now be described with reference to the following examples.
Example 1
A mixed corrosion inhibitor containing
30% by weight of cyclohexylamine,
30% by weight of octadecylamine, and
40% by weight of alkanolamides of unsaturated fatty acids
is applied as a 10% alcoholic solution. This mixed inhibitor showed 93% inhibition efficiency in laboratory tests simulating real corrosion conditions.
Example 2
A mixed corrosion inhibitor containing
10% by weight of morpholine.
20% by weight of octadecylamine,
20% by weight of alkanolamides of unsaturated fatty acids,
25% by weight of imidazoline (imidazole) derivatives, and
25% by weight of esters of fatty acids with higher alcohols
is applied as a 5% solution in the mixture of methaol and hydrocarbon condensate in the ratio 1: 2. This mixed inhibitor showed 95% inhibition efficiency in laboratory tests.
Example 3
A mixed corrosion inhibitor containing
20% by weight of cyclohexylamine,
10% by weight of octadecylamine,
40% by weight of diethanolamide of the coco-nut fat acids
20% by weight of imidazole alkylderivatives, and
10% by weight of esters of higher aliphatic alcohols with fatty acids
is applied as a 5 percentual solution in hydrocarbon condensate. This mixed inhibitor showed 95% inhibition efficiency in laboratory tests.
1. A mixed corrosion inhibitor comprising, as active components, 5 to 30% by weight of at least one alkalizer, 5 to 50% by weight of at least one film-forming amine with C10 to C25, and 10 to 40% by weight of at least one alkanolamide of an unsaturated fatty acid.
2. An inhibitor according to Claim 1 wherein the alkalizer is morpholine, cyclohexylamine, ammonia or hydrazine.
3. An inhibitor according to Claim 1 or 2 wherein the film-forming amine is octadecylamine.
4. An inhibitor according to any one of the preceding claims further comprising imidazoline or at least one of its derivatives in a concentration from 5 to 25% by weight.
5. An inhibitor according to any one of the preceding claims further comprising at least one ester of a fatty acid with a higher alcohol in a concentration from 5 to 25% by weight.
6. An inhibitor according to any one of the preceding claims containing 5 to 50 parts of a solvent per one part of the active components.
7. A mixed corrosion inhibitor substantially as herein described with reference to Example 1,
Example 2 or Example 3.
**WARNING** end of DESC field may overlap start of CLMS **.
Claims (9)
1. A mixed corrosion inhibitor comprising, as active components, 5 to 30% by weight of at least one alkalizer, 5 to 50% by weight of at least one film-forming amine with C10 to C25, and 10 to 40% by weight of at least one alkanolamide of an unsaturated fatty acid.
2. An inhibitor according to Claim 1 wherein the alkalizer is morpholine, cyclohexylamine, ammonia or hydrazine.
3. An inhibitor according to Claim 1 or 2 wherein the film-forming amine is octadecylamine.
4. An inhibitor according to any one of the preceding claims further comprising imidazoline or at least one of its derivatives in a concentration from 5 to 25% by weight.
5. An inhibitor according to any one of the preceding claims further comprising at least one ester of a fatty acid with a higher alcohol in a concentration from 5 to 25% by weight.
6. An inhibitor according to any one of the preceding claims containing 5 to 50 parts of a solvent per one part of the active components.
7. A mixed corrosion inhibitor substantially as herein described with reference to Example 1,
Example 2 or Example 3.
8. A metal part treated by a mixed corrosion inhibitor according to any one of the preceding claims.
9. A method of protection of a metal part by a mixed corrosion inhibitor according to any one of
Claims 1 to 7 substantially as herein described.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB7942250A GB2064985B (en) | 1979-12-07 | 1979-12-07 | Mixed corrosion inhibitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB7942250A GB2064985B (en) | 1979-12-07 | 1979-12-07 | Mixed corrosion inhibitor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB2064985A true GB2064985A (en) | 1981-06-24 |
| GB2064985B GB2064985B (en) | 1983-11-16 |
Family
ID=10509690
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB7942250A Expired GB2064985B (en) | 1979-12-07 | 1979-12-07 | Mixed corrosion inhibitor |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2064985B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2359500A (en) * | 2000-02-23 | 2001-08-29 | Illinois Tool Works | Inhibiting corrosion in pipelines |
| US20150159509A1 (en) * | 2013-12-06 | 2015-06-11 | General Electric Company | Method and System for Dispensing Gas Turbine Anticorrosive Protection |
| US20150159510A1 (en) * | 2013-12-06 | 2015-06-11 | General Electric Company | Method and System for Dispensing Gas Turbine Anticorrosive Protection |
| CN105008589A (en) * | 2013-03-01 | 2015-10-28 | 通用电气公司 | Compositions and methods for inhibiting corrosion in gas turbine air compressors |
| CN109423267A (en) * | 2017-08-22 | 2019-03-05 | 中国石油化工股份有限公司 | A kind of vapour phase inhibitor and preparation method thereof |
| EP3978581A1 (en) * | 2020-09-30 | 2022-04-06 | Oleon N.V. | Amide composition and use as emulsifier and corrosion inhibitor |
| WO2023279554A1 (en) * | 2021-07-08 | 2023-01-12 | 中国石油化工股份有限公司 | Application of naphthenic imidazoline in inhibiting formation of natural gas hydrates and composition containing same |
-
1979
- 1979-12-07 GB GB7942250A patent/GB2064985B/en not_active Expired
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2359500A (en) * | 2000-02-23 | 2001-08-29 | Illinois Tool Works | Inhibiting corrosion in pipelines |
| US6467492B2 (en) | 2000-02-23 | 2002-10-22 | Illinois Tool Works, Inc. | Corrosion inhibitors |
| US6555506B2 (en) | 2000-02-23 | 2003-04-29 | Illinois Tool Works Inc. | Corrosion inhibitors |
| GB2359500B (en) * | 2000-02-23 | 2004-08-18 | Illinois Tool Works | Corrosion inhibitors |
| CN105008589A (en) * | 2013-03-01 | 2015-10-28 | 通用电气公司 | Compositions and methods for inhibiting corrosion in gas turbine air compressors |
| US9758877B2 (en) | 2013-03-01 | 2017-09-12 | General Electric Company | Compositions and methods for inhibiting corrosion in gas turbine air compressors |
| CN105008589B (en) * | 2013-03-01 | 2017-09-22 | 通用电气公司 | Composition and method for suppressing the corrosion in gas turbine air compressor |
| US20150159510A1 (en) * | 2013-12-06 | 2015-06-11 | General Electric Company | Method and System for Dispensing Gas Turbine Anticorrosive Protection |
| US20150159509A1 (en) * | 2013-12-06 | 2015-06-11 | General Electric Company | Method and System for Dispensing Gas Turbine Anticorrosive Protection |
| CN105179088A (en) * | 2013-12-06 | 2015-12-23 | 通用电气公司 | Method And System For Dispensing Gas Turbine Anticorrosive Protection |
| CN109423267A (en) * | 2017-08-22 | 2019-03-05 | 中国石油化工股份有限公司 | A kind of vapour phase inhibitor and preparation method thereof |
| CN109423267B (en) * | 2017-08-22 | 2021-06-25 | 中国石油化工股份有限公司 | Vapor phase corrosion inhibitor and preparation method thereof |
| EP3978581A1 (en) * | 2020-09-30 | 2022-04-06 | Oleon N.V. | Amide composition and use as emulsifier and corrosion inhibitor |
| WO2022069417A1 (en) * | 2020-09-30 | 2022-04-07 | Oleon Nv | Amide composition and use as emulsifier and corrosion inhibitor |
| WO2023279554A1 (en) * | 2021-07-08 | 2023-01-12 | 中国石油化工股份有限公司 | Application of naphthenic imidazoline in inhibiting formation of natural gas hydrates and composition containing same |
Also Published As
| Publication number | Publication date |
|---|---|
| GB2064985B (en) | 1983-11-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3981682A (en) | Corrosion inhibiting compositions and process for inhibiting corrosion of metals | |
| WO2004092447A2 (en) | Imidazoline corrosion inhibitors | |
| JPS5942073B2 (en) | Anticorrosion composition | |
| US2614980A (en) | Process for inhibiting corrosion in oil wells | |
| US2944969A (en) | Prevention of rust and corrosion | |
| GB2064985A (en) | A mixed corrosion inhibitor | |
| CN102978624A (en) | Oil-gas field gas transmission pipeline corrosion inhibitor and preparation method thereof | |
| Kuang et al. | The effect of Anodamine on the corrosion behavior of 1018 mild steel in deionized water: I. Immersion and polarization tests | |
| US3061553A (en) | Corrosion inhibitors | |
| US2750339A (en) | Method for inhibiting corrosion | |
| US4460482A (en) | Composition and method for corrosion inhibition | |
| US2987515A (en) | Urethanes | |
| US3429673A (en) | Corrosion inhibiting additive compositions for fuel oils | |
| Abbasov et al. | The inhibition efficiency of nitrated cottonseed oil on corrosion of mild carbon steel in CO2 medium | |
| US3337472A (en) | Composition for inhibiting corrosion | |
| US2945821A (en) | Process of inhibiting corrosion | |
| US3272861A (en) | Polyalkylene polyamine derivatives of hydroxybenzoic acid | |
| US4511001A (en) | Composition and method for corrosion inhibition | |
| US4726914A (en) | Corrosion inhibitors | |
| US6063334A (en) | Sulfur based corrosion inhibitor | |
| EP3741826A1 (en) | Mitigating internal corrosion of crude oil transportation pipeline | |
| US2915376A (en) | Perfluoroalkylimidazolines and compositions containing the same | |
| CS207959B1 (en) | Mixed inhibitor of the metal corrosion | |
| US2914475A (en) | Protecting ferrous metals from corrosion | |
| US3523894A (en) | Corrosion inhibitors |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PCNP | Patent ceased through non-payment of renewal fee |