FR2475578A1 - Corrosion inhibiting mixt. for gas handling equipment - contg. alkali, fatty amine and unsatd. fatty acid alkanol:amide - Google Patents

Corrosion inhibiting mixt. for gas handling equipment - contg. alkali, fatty amine and unsatd. fatty acid alkanol:amide Download PDF

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Publication number
FR2475578A1
FR2475578A1 FR8002973A FR8002973A FR2475578A1 FR 2475578 A1 FR2475578 A1 FR 2475578A1 FR 8002973 A FR8002973 A FR 8002973A FR 8002973 A FR8002973 A FR 8002973A FR 2475578 A1 FR2475578 A1 FR 2475578A1
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FR
France
Prior art keywords
weight
fatty acid
unsatd
mixt
contg
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.)
Withdrawn
Application number
FR8002973A
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French (fr)
Inventor
Jiri Na Petynce Mostecky
Josef Kladenska Pelikan
Jan Jodasova Vosta
Milan Truhlarska Smrz
Jitka Cafourkova Nemcova
Otakar V Olsinach Sverepa
Milan Rajskova Safar
Vladimir Sokolovska Fousek
Frantisek Slanina
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Vysoka Skola Chemicko Technologicka V Praze
Original Assignee
Vysoka Skola Chemicko Technologicka V Praze
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Priority to FR8002973A priority Critical patent/FR2475578A1/en
Publication of FR2475578A1 publication Critical patent/FR2475578A1/en
Withdrawn legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
    • C23F11/00—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent
    • C23F11/02—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in air or gases by adding vapour phase inhibitors
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L58/00—Protection of pipes or pipe fittings against corrosion or incrustation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C1/00—Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge
    • F17C1/10—Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge with provision for protection against corrosion, e.g. due to gaseous acid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2203/00—Vessel construction, in particular walls or details thereof
    • F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
    • F17C2203/0634—Materials for walls or layers thereof
    • F17C2203/0636—Metals
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2203/00—Vessel construction, in particular walls or details thereof
    • F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
    • F17C2203/0634—Materials for walls or layers thereof
    • F17C2203/0636—Metals
    • F17C2203/0648—Alloys or compositions of metals
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/03—Mixtures
    • F17C2221/032—Hydrocarbons

Abstract

Mixt. for inhibiting metal corrosion comprises, as active ingredients, 5-30 wt.% alkaline material (I); 5-50 wt.% film- forming 10-25C amine (II) and 10-40 wt.% alkanolamide of unsatd. fatty acids (III). It can also contain 5-25 wt.% imidazoline or its derivs. and 5-25 wt.% of esters of fatty acids with higher alcohols. Pref. the compsn. is used at a rate of 1 wt.pt. per 5-50 wt. pts. solvent. The compsns. are used in equipment for recovery, storage and transport of natural gas or towns gas.

Description

La présente invention concerne un inhibiteur mixte de la corrosion des métaux; utilisé p#ur la pro+ec+=or des parties métalliques de dispositifs qui servent à la production, le magasinage et le transport de gaz naturel o de gaz de ville. The present invention relates to a mixed inhibitor of metal corrosion; used for pro + ec + = gold metal parts of devices which are used for the production, storage and transport of natural gas or town gas.

bertales composants gazeux, comme par exemple le dioxyde de carbone: l'hydrogène sulfureux9 l'oxygène et les acides organiques, forment avec l'eau un fluide corrosif, qui provoque la détérioration de récipients métalliques, de conduites tubulaires, d'armatures et autres accessoires métalliques. bertales gaseous components, like for example carbon dioxide: hydrogen sulphurous9 oxygen and organic acids, form with water a corrosive fluid, which causes the deterioration of metal containers, tubular conduits, reinforcements and others metal accessories.

L'action de ces composés est souvent renforcée par la présence de particules à caractère chimique 9 par exemple des chlorures, ou à caractère mécanique, par exemple du sable. L'attaque corrosive peut revêtir une forme superficielle, une forme de piqûres, ou une forme intercristalline, sous l'action conjointe des minerais entra#nés. The action of these compounds is often reinforced by the presence of particles of a chemical nature 9, for example chlorides, or of a mechanical nature, for example of sand. The corrosive attack may take a surface form, a form of pitting, or an intercrystalline form, under the joint action of the entrained ores.

Une autre forme de corrosion, consécutive au vieillissement des matériaux, est représentée par la formation de fissures0
Limiter la corrosion des systèmes mentionnés est important, bien que l'on connaisse des procédés théoriques destinés à protéger de la corrosion. On peut soit choisir des matériaux métalliques ocuteux résistant à la corrosion, soit revêtir les surfaces métalliques par une couche de matière synthétique, soit enfin employer des matériaux métalliques peu motteux, en appliquant des inhibiteurs de corrosion.Another form of corrosion, resulting from the aging of materials, is represented by the formation of cracks
Limiting the corrosion of the systems mentioned is important, although there are known theoretical methods intended to protect against corrosion. It is possible either to choose non-corrosive metallic materials resistant to corrosion, or to coat the metallic surfaces with a layer of synthetic material, or finally to use low-clumping metallic materials, by applying corrosion inhibitors.

On utilise généralement, comme inhibiteurs de corrosion, des matières comme les alcoylphénols et les sels de calcium des acides sulfoniques, ainsi que les polyesters, les hydrochlorures d'amines aliphatiques, des mélanges de bases alcoylpyridinium, les produits de condensation de la pyridine avec des hydrocarbures chlorométhylés, et d'autres produits semblables. Generally used as corrosion inhibitors, materials such as alkylphenols and calcium salts of sulfonic acids, as well as polyesters, hydrochlorides of aliphatic amines, mixtures of alkylpyridinium bases, condensation products of pyridine with chloromethylated hydrocarbons, and other similar products.

L'inhibiteur mixte selon l'invention de la corrosion des métaux consiste en produits actifs, qui contiennent 5 à 30 % en poids d'agents volatils alcalinisants comme par exemple la morpho ir.es la cynlch-exylamines l'ammoniac, l'hydrazineD 5 à 50 % enpoids d'amines filmantes en C10 à C25, par exemple l#octade#ylamjne9 et 10 à 40 % en poids d'alcanolamides d'acides gras insaturés, ou de l'imidazoline et ses dérivés, en une concentration de 5 à 25 % en poids, ou bien des esters d'acides gras avec des alcools à poids moléculaire élevés dans une concentration de 5 à 25 '% en poids. The mixed inhibitor according to the invention of metal corrosion consists of active products, which contain 5 to 30% by weight of volatile basifying agents such as, for example, morpho ir.es cynlch-exylamines ammonia, hydrazineD 5 to 50% by weight of film-forming amines at C10 to C25, for example l # octade # ylamjne9 and 10 to 40% by weight of alkanolamides of unsaturated fatty acids, or of imidazoline and its derivatives, in a concentration of 5 to 25% by weight, or alternatively fatty acid esters with high molecular weight alcohols in a concentration of 5 to 25% by weight.

Suivant une autre caractéristique, on met en oeuvre, pour 1 partie en poids de matière active, 5 à 50 parties en poids de solvant, par exemple du méthanol, éthanol, un condensat d'hydrocarbures ou. un mélange de ces mêmes pro#duits. According to another characteristic, 5 to 50 parts by weight of solvent are used, for 1 part by weight of active material, for example methanol, ethanol, or a hydrocarbon condensate. a mixture of these same products.

L'inhibiteur mixte de corrosion métallique conforme à l'invention est utilisé avant tout dans les sondes servant au prélèvement du gaz de ville. Après dissolution dans le méthanol, éthanol ou un condensat d'hydrocarbures, l'inhi- biteur est introduit en quantité mesurée, sous la forme d'une solution de 2 à 20 %, à l'aide dtune pompe, dans la sonde d'extraction, et ceci en un proportion de 200 litres/i million de m3 du gaz extrait. La production de gaz ne peut commencer qutaprès une action de 24 heures de l'inhibiteur9 qui forme un film protecteur sur la surface métallique.Après le début de la production de gaz, le dosage sera, au cours de la première semaine, de 200 litres/i million de m3 de gaz9 la semaine suivante, de 50 litres/i million de ms de gaz et après, il sera toujours de 10 litres/1 million de m3 de gaz. The mixed metal corrosion inhibitor according to the invention is used above all in probes used for sampling town gas. After dissolving in methanol, ethanol or a hydrocarbon condensate, the inhibitor is introduced in measured quantity, in the form of a solution of 2 to 20%, using a pump, into the probe. extraction, and this in a proportion of 200 liters / i million m3 of the gas extracted. The production of gas can only start after a 24-hour action of the inhibitor9 which forms a protective film on the metal surface. After the start of gas production, the dosage will be, during the first week, 200 liters / i million m3 of gas9 the following week, of 50 liters / i million ms of gas and after, it will always be 10 liters / 1 million m3 of gas.

L'invention sera mieux comprise à l'aide des exemple d'application concrets suivants
EXEMPLE 1
L'inhibiteur mixte de corrosion métallique, qui contient
30 fo en poids de cyclohexylamine
30 % en poids d'octadeoylamine
40 * en poids d'alcanolamide d'acide gras insaturé, est mis en oeuvre sous la forme d'une solution alcoolique à 10 *. Lors d'essais de laboratoire, où les conditions effectives de corrosion ont été simulées, 1'inhibiteur mixte présentait une action protectrice de 93 %.The invention will be better understood using the following concrete application examples
EXAMPLE 1
The mixed metal corrosion inhibitor, which contains
30% by weight of cyclohexylamine
30% by weight of octadeoylamine
40% by weight of alkanolamide of unsaturated fatty acid is used in the form of an alcoholic solution at 10%. In laboratory tests, where the actual corrosion conditions were simulated, the mixed inhibitor had a protective action of 93%.

EXEMPLE 2
L'inhibiteur mixte de corrosion métallique contenant
10 * en poids de morpholine
20 % en poids d'actadecylamine
20% en poids d'alcanolamide d'acide gras
insaturé
25% en poids d'un dérive imidazoline (dérivé
d'imidazol) et
25% en poids d'esters d'acides gras avec des alcools de poids moléculaire élevé. Cet inhibiteur est utilisé sous la forme d'une solution à 5% dans un melange méthanol condensat d'hydrocarbure, dans un rapport de 1 : 2. Au cours d'essais de laboratoires, l'inhibiteur mixte a prouvé un effet protecteur à 95%.EXAMPLE 2
Mixed metal corrosion inhibitor containing
10 * by weight of morpholine
20% by weight of actececamine
20% by weight of fatty acid alkanolamide
unsaturated
25% by weight of an imidazoline derivative (derivative
imidazol) and
25% by weight of fatty acid esters with high molecular weight alcohols. This inhibitor is used in the form of a 5% solution in a methanol-hydrocarbon condensate mixture, in a ratio of 1: 2. In laboratory tests, the mixed inhibitor has shown a protective effect at 95 %.

EXEMPLE 3. EXAMPLE 3.

L'inhibiteur mixte de corrosion métallique contenant
20% en poids de cyclohexylamine
10% en poids d'octadecylamine
40% en enpoids de diéthanolamine d'acide gras
de coprah
20% en poids de dérivé alkoylé d'imidazole
10% en poids d'esters d'acide gras avec des alcools de poids moléculaire élevé est employé sous forme de solu tions à 5% dans un condensat d'hydrocarbures. Au cours des essais de laboratoire, l'inhibiteur mixte a montré une activité protectrice a Mixed metal corrosion inhibitor containing
20% by weight of cyclohexylamine
10% by weight of octadecylamine
40% by weight of fatty acid diethanolamine
copra
20% by weight of alkylated imidazole derivative
10% by weight of fatty acid esters with high molecular weight alcohols is used in the form of 5% solutions in a hydrocarbon condensate. In laboratory tests, the mixed inhibitor showed protective activity a

Claims (4)

REVENDICATIONS 1.- Inhibiteur mixte de corrosion métallique caractérisé en ce qu'il contient, comme matière active, 5 à 30 % en poids d'agent alcalinisant, 5 à 50 % en poids d'amine filmante en C10 à C25, et 10 à 40 % en poids d'alcanolamide d'acide grans insaturé. 1.- Mixed metal corrosion inhibitor characterized in that it contains, as active material, 5 to 30% by weight of basifying agent, 5 to 50% by weight of film-forming amine in C10 to C25, and 10 to 40 % by weight of unsaturated fatty acid alkanolamide. 2.- Inhibiteur mixte suivant la revendication 1, caractérisé en ce qu'il contient de l'imidazoline et ses dérivés en une concentration de 5 à 25 % en poids. 2.- mixed inhibitor according to claim 1, characterized in that it contains imidazoline and its derivatives in a concentration of 5 to 25% by weight. 3.- Inhibiteur mixte suivant la revendication 1, caractérisé en ce qu'il contient en outre des esters d'acides gras avec des alcools à poids moléculaire élevé, en une concentration de 5 à 25 % enr-#oids. 3.- mixed inhibitor according to claim 1, characterized in that it also contains fatty acid esters with high molecular weight alcohols, in a concentration of 5 to 25% enr- # oids. 4.- Inhibiteur mixte suivant les revendications 1 à 3, caractérisé en ce que, pour 1 partie en poids de matière active, on prend 5 à 50 parties en poids de solvant. 4.- mixed inhibitor according to claims 1 to 3, characterized in that, for 1 part by weight of active material, it takes 5 to 50 parts by weight of solvent.
FR8002973A 1980-02-11 1980-02-11 Corrosion inhibiting mixt. for gas handling equipment - contg. alkali, fatty amine and unsatd. fatty acid alkanol:amide Withdrawn FR2475578A1 (en)

Priority Applications (1)

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FR8002973A FR2475578A1 (en) 1980-02-11 1980-02-11 Corrosion inhibiting mixt. for gas handling equipment - contg. alkali, fatty amine and unsatd. fatty acid alkanol:amide

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8002973A FR2475578A1 (en) 1980-02-11 1980-02-11 Corrosion inhibiting mixt. for gas handling equipment - contg. alkali, fatty amine and unsatd. fatty acid alkanol:amide

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FR2475578A1 true FR2475578A1 (en) 1981-08-14

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2979915A1 (en) * 2011-09-13 2013-03-15 Ceca Sa CORROSION INHIBITORS OF HYDROCARBON EXTRACTION PORTS TRANSPORT CONDUITS

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2979915A1 (en) * 2011-09-13 2013-03-15 Ceca Sa CORROSION INHIBITORS OF HYDROCARBON EXTRACTION PORTS TRANSPORT CONDUITS
WO2013038100A1 (en) * 2011-09-13 2013-03-21 Ceca S.A. Inhibitors of top-of-line corrosion of pipelines conveying crudes from extraction of hydrocarbons
US10422043B2 (en) 2011-09-13 2019-09-24 Arkema France Inhibitors of top-of-line corrosion of pipelines conveying crudes from extraction of hydrocarbons

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