RU2754319C1 - Method for obtaining corrosion inhibitors based on tetrapropylene pentamines for oilfield equipment and pipelines - Google Patents
Method for obtaining corrosion inhibitors based on tetrapropylene pentamines for oilfield equipment and pipelines Download PDFInfo
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- RU2754319C1 RU2754319C1 RU2020141212A RU2020141212A RU2754319C1 RU 2754319 C1 RU2754319 C1 RU 2754319C1 RU 2020141212 A RU2020141212 A RU 2020141212A RU 2020141212 A RU2020141212 A RU 2020141212A RU 2754319 C1 RU2754319 C1 RU 2754319C1
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- temperature
- imidazoline
- bis
- molar ratio
- monocarboxylic acid
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- 230000007797 corrosion Effects 0.000 title claims abstract description 13
- 238000005260 corrosion Methods 0.000 title claims abstract description 13
- 239000003112 inhibitor Substances 0.000 title claims abstract description 10
- 238000000034 method Methods 0.000 title claims abstract description 7
- BZJTUOGZUKFLQT-UHFFFAOYSA-N 1,3,5,7-tetramethylcyclooctane Chemical group CC1CC(C)CC(C)CC(C)C1 BZJTUOGZUKFLQT-UHFFFAOYSA-N 0.000 title abstract 2
- BELZJFWUNQWBES-UHFFFAOYSA-N caldopentamine Chemical compound NCCCNCCCNCCCNCCCN BELZJFWUNQWBES-UHFFFAOYSA-N 0.000 claims abstract description 17
- KCXMKQUNVWSEMD-UHFFFAOYSA-N benzyl chloride Chemical compound ClCC1=CC=CC=C1 KCXMKQUNVWSEMD-UHFFFAOYSA-N 0.000 claims abstract description 13
- 229940073608 benzyl chloride Drugs 0.000 claims abstract description 13
- 150000002763 monocarboxylic acids Chemical class 0.000 claims abstract description 7
- 238000006243 chemical reaction Methods 0.000 claims abstract description 6
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 claims abstract description 5
- 239000004743 Polypropylene Substances 0.000 claims abstract description 5
- 229910000037 hydrogen sulfide Inorganic materials 0.000 claims abstract description 5
- 239000012535 impurity Substances 0.000 claims abstract description 5
- 229920000768 polyamine Polymers 0.000 claims abstract description 5
- -1 polypropylene Polymers 0.000 claims abstract description 5
- 229920001155 polypropylene Polymers 0.000 claims abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 5
- 150000001735 carboxylic acids Chemical class 0.000 claims abstract description 3
- 238000004821 distillation Methods 0.000 claims abstract description 3
- 230000003993 interaction Effects 0.000 claims abstract 2
- 150000002889 oleic acids Chemical class 0.000 claims description 2
- WOWYPHJOHOCYII-VOTSOKGWSA-N (e)-2-ethylhex-2-enoic acid Chemical compound CCC\C=C(/CC)C(O)=O WOWYPHJOHOCYII-VOTSOKGWSA-N 0.000 claims 1
- 239000007789 gas Substances 0.000 abstract description 7
- 239000012736 aqueous medium Substances 0.000 abstract description 2
- 239000002994 raw material Substances 0.000 abstract description 2
- 239000000126 substance Substances 0.000 abstract 1
- 239000002253 acid Substances 0.000 description 3
- 239000000460 chlorine Substances 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 235000021313 oleic acid Nutrition 0.000 description 3
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid group Chemical group C(CCCCCCC\C=C/CCCCCCCC)(=O)O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 description 3
- 239000011541 reaction mixture Substances 0.000 description 3
- WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 description 2
- LQJBNNIYVWPHFW-UHFFFAOYSA-N 20:1omega9c fatty acid Natural products CCCCCCCCCCC=CCCCCCCCC(O)=O LQJBNNIYVWPHFW-UHFFFAOYSA-N 0.000 description 2
- XTVRLCUJHGUXCP-UHFFFAOYSA-N 3-methyleneheptane Chemical compound CCCCC(=C)CC XTVRLCUJHGUXCP-UHFFFAOYSA-N 0.000 description 2
- QSBYPNXLFMSGKH-UHFFFAOYSA-N 9-Heptadecensaeure Natural products CCCCCCCC=CCCCCCCCC(O)=O QSBYPNXLFMSGKH-UHFFFAOYSA-N 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- ZQPPMHVWECSIRJ-UHFFFAOYSA-N Oleic acid Natural products CCCCCCCCC=CCCCCCCCC(O)=O ZQPPMHVWECSIRJ-UHFFFAOYSA-N 0.000 description 2
- 239000005642 Oleic acid Substances 0.000 description 2
- 150000007513 acids Chemical class 0.000 description 2
- 238000005576 amination reaction Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- WOWYPHJOHOCYII-UHFFFAOYSA-N 2-ethylhex-2-enoic acid Chemical compound CCCC=C(CC)C(O)=O WOWYPHJOHOCYII-UHFFFAOYSA-N 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- CSKNSYBAZOQPLR-UHFFFAOYSA-N benzenesulfonyl chloride Chemical compound ClS(=O)(=O)C1=CC=CC=C1 CSKNSYBAZOQPLR-UHFFFAOYSA-N 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 244000309464 bull Species 0.000 description 1
- CNYFJCCVJNARLE-UHFFFAOYSA-L calcium;2-sulfanylacetic acid;2-sulfidoacetate Chemical compound [Ca+2].[O-]C(=O)CS.[O-]C(=O)CS CNYFJCCVJNARLE-UHFFFAOYSA-L 0.000 description 1
- 238000005660 chlorination reaction Methods 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- JQDMKZALCDMYHW-UHFFFAOYSA-N chloromethylbenzene;4,5-dihydro-1h-imidazole Chemical compound C1CN=CN1.ClCC1=CC=CC=C1 JQDMKZALCDMYHW-UHFFFAOYSA-N 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
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
- C23F11/08—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids
- C23F11/10—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids using organic inhibitors
- C23F11/14—Nitrogen-containing compounds
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Description
Изобретение относится к области защиты газо- и нефтепромыслового оборудования и трубопроводов, работающих в высокоминерализованных сероводородсодержащих водных средах, от коррозии, а также транспортировки нефти и газа.The invention relates to the field of protection of gas and oil field equipment and pipelines operating in highly mineralized hydrogen sulfide-containing aqueous media from corrosion, as well as transportation of oil and gas.
Известен способ получения ингибитора коррозии, получаемой аминированием бензолсульфохлорида водным раствором аммиака (пат. 2096523 РФ, 1997 г.).A known method of producing a corrosion inhibitor obtained by amination of benzenesulfochloride with an aqueous solution of ammonia (US Pat. 2096523 RF, 1997).
Недостатком известного ингибитора коррозии является невысокая степень защиты металла, плохая растворимость его в указанных выше средах, многостадийность его синтеза.The disadvantage of the known corrosion inhibitor is the low degree of protection of the metal, its poor solubility in the above media, the multistage nature of its synthesis.
Известно применение для предотвращения коррозионного разрушения нефтепромыслового оборудования широкого ряда сложных по составу композиций - нефтехим-3, СНПХ-6301, СНПХ-6302, СНПХ-6011, СНПХ-6014, Викор, а также смесь аминопарафинов, получаемая аминированием продукта хлорирования хлором жидких парафинов С10-26 с пределами выкипания 220-345°С (пат. РФ №2074170; Бюл. №6, 1997 г.).It is known to use a wide range of complex compositions to prevent corrosive destruction of oilfield equipment - petrochem-3, SNPKh-6301, SNPKh-6302, SNPKh-6011, SNPKh-6014, Vikor, as well as a mixture of aminoparaffins obtained by amination of the chlorination product with chlorine of liquid C paraffins 10-26 with boiling range 220-345 ° C (US Pat. RF No. 2074170; Bull. No. 6, 1997).
Недостатком применения указанных ингибиторов коррозии является невысокая степень защиты металла от коррозии, плохая растворимость ингибитора в указанных выше средах.The disadvantage of using these corrosion inhibitors is the low degree of metal protection against corrosion, poor solubility of the inhibitor in the above media.
Задача изобретения - разработка способа получения ингибиторов коррозии, обеспечивающих эффективную защиту металлов газонефтепромыслового оборудования, трубопроводов от коррозии.The objective of the invention is to develop a method for producing corrosion inhibitors that provide effective protection of metals of gas and oil field equipment, pipelines from corrosion.
Технический результат при использовании изобретения выражается в расширении сырьевой базы и ассортимента выпускаемой продукции. Также результатом изобретения является удешевление целевого продукта.The technical result when using the invention is expressed in the expansion of the raw material base and the range of products. Also, the result of the invention is a reduction in the price of the target product.
Поставленная задача решается заявляемым способом получения ингибиторов коррозии для защиты газо- и нефтепромыслового оборудования и трубопроводов на основе полипропиленполиаминов и карбоновых кислот с отгоном реакционной воды и примесей. В качестве полипропиленполиаминов используют тетрапропиленпентамин (ТППА) [(3,6,9,12-тетраметил)-1,4,7,10,13-пентамино-тридекан], который взаимодействует с монокарбоновыми кислотами, в качестве которых используют олеиновую (ол.к.) или 2-этилгексеновую (эг.к.) кислоты, сначала при температуре 160°С в течение 4-5,5 ч, затем при температуре 255-260°С в течение 2-2,5 ч в мольном соотношении ТППА и монокарбоновые кислоты равном 1:2-2,1 с последующим взаимодействием полученных бис-имидазолинов с бензилхлоридом при температуре 90°С в мольном соотношении бис-имидазолина на основе ТППА : бензилхлорида равном 1:1,05.The problem is solved by the claimed method of producing corrosion inhibitors for the protection of gas and oil field equipment and pipelines based on polypropylene polyamines and carboxylic acids with distillation of reaction water and impurities. Tetrapropylenepentamine (TPPA) [(3,6,9,12-tetramethyl) -1,4,7,10,13-pentamino-tridecane] is used as polypropylene polyamines, which interacts with monocarboxylic acids, which are oleic acids (ol. k.) or 2-ethylhexene (eg.c.) acids, first at a temperature of 160 ° C for 4-5.5 h, then at a temperature of 255-260 ° C for 2-2.5 h in a molar ratio of TPPA and monocarboxylic acids equal to 1: 2-2.1, followed by the reaction of the obtained bis-imidazolines with benzyl chloride at a temperature of 90 ° C in a molar ratio of bis-imidazoline based on TPPA: benzyl chloride equal to 1: 1.05.
Вышеназванный результат получения ингибиторов коррозии, работающих в минерализованных и сероводородсодержащих средах, достигается особенностью, заключающейся в том, что ТППА взаимодействует с олеиновой (ол.к.) или 2-этилгексеновой (эг.к.) кислотами сначала при температуре 160°С в течение 4-5,5 ч, затем при температуре 255-260°С в течение 2-2,5 ч в мольном соотношении ТППА : кислоты = 1:2-2,1 с образованием бис-имидазолина (1).The aforementioned result of obtaining corrosion inhibitors operating in mineralized and hydrogen sulfide-containing environments is achieved by the feature that TPPA interacts with oleic (ol.k.) or 2-ethylhexene (eh.c.) acids, first at a temperature of 160 ° C for 4-5.5 h, then at a temperature of 255-260 ° C for 2-2.5 h in a molar ratio of TPPA: acid = 1: 2-2.1 with the formation of bis-imidazoline (1).
Полученный бис-имидазолин (1) взаимодействуют с бензилхлоридом (БХ) при 90°С в мольном соотношении бис-имидазолин (1) : БХ = 1:1,05.The resulting bis-imidazoline (1) is reacted with benzyl chloride (BC) at 90 ° C in a molar ratio of bis-imidazoline (1): BC = 1: 1.05.
Сущность изобретения поясняется следующими примерами.The essence of the invention is illustrated by the following examples.
Пример 1. В реактор с перемешивающим устройством, термометром, холодильником и капельной воронкой загружают 24,5 г (0,1 моль) тетрапропиленпентамина (ТППА) и 59,22 г (0,21 моль) олеиновой кислоты (Ол.к.) в мольном соотношении ТППА : Ол.к. = 1:2,1. Реакционную смесь нагревают сначала при температуре 160°С в течение 5,5 ч, затем при температуре 260°С в течение 2,5 ч и непрерывно производят отгон реакционной воды и примесей, содержащихся в исходных продуктах.Example 1. In a reactor with a stirring device, a thermometer, a refrigerator and a dropping funnel, 24.5 g (0.1 mol) of tetrapropylene pentamine (TPPA) and 59.22 g (0.21 mol) of oleic acid (Ol.c.) are charged in molar ratio TPPA: Ol.k. = 1: 2.1. The reaction mixture is heated first at a temperature of 160 ° C for 5.5 h, then at a temperature of 260 ° C for 2.5 h, and the reaction water and impurities contained in the starting products are continuously distilled off.
Получают 72,37 г (98,2%) бис-имидазолина (2).72.37 g (98.2%) of bis-imidazoline (2) are obtained.
Найдено, %: N 9,08. C48H91N5. Вычислено, %: N 9,49.Found,%: N 9.08. C 48 H 91 N 5 . Calculated,%: N 9.49.
Полученное соединение (2) 73,7 г (0,1 моль) взаимодействует с 13,28 г (0,105 моль) БХ при температуре 90°С в течение 4,5 ч в мольном соотношении бис-имидазолин (2) : БХ = 1:1,05.The resulting compound (2) 73.7 g (0.1 mol) reacts with 13.28 g (0.105 mol) BC at a temperature of 90 ° C for 4.5 h in a molar ratio of bis-imidazoline (2): BC = 1 : 1.05.
Получают 85,40 г (98,9%) N-бензил-бис-(имидазолин)-хлорида (3).85.40 g (98.9%) of N-benzyl bis (imidazoline) chloride (3) are obtained.
Найдено, %: N 7,68 C55H98N5Cl. Вычислено, %: N 8,10.Found,%: N 7.68 C 55 H 98 N 5 Cl. Calculated,%: N 8.10.
Пример 2. По условиям примера 1 в реактор загружают 24,5 г (0,1 моль) ТППА и 28,4 г (0,2 моль) этилгексеновой кислоты (Эг.к.) в мольном соотношении ТППА : Эг.к. = 1:2. Реакционную смесь нагревают сначала при температуре 160°С в течение 4 ч, затем при температуре 255°С в течение 2 ч и непрерывно производят отгон реакционной воды и примесей, содержащихся в исходных продуктах.Example 2. Under the conditions of example 1, 24.5 g (0.1 mol) of TPPA and 28.4 g (0.2 mol) of ethylhexenoic acid (Eg.c.) are loaded into the reactor in a molar ratio of TPPA: Eg.c. = 1: 2. The reaction mixture is heated first at a temperature of 160 ° C for 4 hours, then at a temperature of 255 ° C for 2 hours, and the reaction water and impurities contained in the starting products are continuously distilled off.
Получают 44,87 г (98,2%) бис-имидазолина (4).44.87 g (98.2%) of bis-imidazoline (4) are obtained.
Найдено, %: N 15,68. C28H51N5. Вычислено, %: N 15,31.Found,%: N 15.68. C 28 H 51 N 5 . Calculated,%: N 15.31.
Полученное соединение (4) 45,7 г (0,1 моль) взаимодействует с 13,28 г (0,105 моль) БХ при температуре 90°С в течение 4,5 ч в мольном соотношении бис-имидазолин (4) : БХ = 1:1,05.The resulting compound (4) 45.7 g (0.1 mol) reacts with 13.28 g (0.105 mol) BC at a temperature of 90 ° C for 4.5 h in a molar ratio of bis-imidazoline (4): BC = 1 : 1.05.
Получают 57,18 г (98,0%) бис-(имидазолин-бензилхлорида) (5).57.18 g (98.0%) of bis- (imidazoline-benzyl chloride) (5) are obtained.
Найдено, %: Ν 11,55. C35H58N5Cl. Вычислено, %: Ν 11,99.Found,%: Ν 11.55. C 35 H 58 N 5 Cl. Calculated,%: Ν 11.99.
Примеры 1-2 подтверждают высокий выход бис-имидазолинов - 98,0-98,9%, а также высокий показатель защитного эффекта - 96,5-98,4% при условии выдерживания заявленных параметров процесса получения.Examples 1-2 confirm the high yield of bis-imidazolines - 98.0-98.9%, as well as a high protective effect - 96.5-98.4%, provided that the declared parameters of the production process are maintained.
При условии отклонения заявленных параметров процесса получения бис-имидазолинов и их производных, первоначальное нагревание реакционной смеси тетрапропиленпентамина и олеиновой кислоты при температуре 130°С в течение 2 ч, и последующее - при температуре 270°С в течение 1,5 ч демонстрирует снижение выхода продукта, а также понижение защитного эффекта.Subject to the deviation of the declared parameters of the process of obtaining bis-imidazolines and their derivatives, the initial heating of the reaction mixture of tetrapropylene pentamine and oleic acid at a temperature of 130 ° C for 2 hours, and subsequent heating at a temperature of 270 ° C for 1.5 hours demonstrates a decrease in the yield of the product , as well as a decrease in the protective effect.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2074170C1 (en) * | 1994-04-12 | 1997-02-27 | Внедренческий научно-исследовательский инженерный центр "Нефтегазтехнология" | Mixture of aminoparaffins containing 1-6 amino groups prepared by amination of product prepared by chlorination with liquid chlorine of liquid c10-c26-paraffins with boiling range 220-345 c originated from carbamide deparaffination process used as corrosion inhibitor |
| US20040086419A1 (en) * | 2002-10-30 | 2004-05-06 | Klatskin Stuart D | Methods for inhibiting intergranular corrosion of metal surfaces |
| RU2267562C2 (en) * | 2003-10-09 | 2006-01-10 | Закрытое акционерное общество "Каустик" | Corrosion inhibitor for three-phase system |
| RU2347852C2 (en) * | 2007-03-09 | 2009-02-27 | Открытое акционерное общество "Каустик" (ОАО "Каустик") | Method of producing acidic corrosion inhibitors |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2074170C1 (en) * | 1994-04-12 | 1997-02-27 | Внедренческий научно-исследовательский инженерный центр "Нефтегазтехнология" | Mixture of aminoparaffins containing 1-6 amino groups prepared by amination of product prepared by chlorination with liquid chlorine of liquid c10-c26-paraffins with boiling range 220-345 c originated from carbamide deparaffination process used as corrosion inhibitor |
| US20040086419A1 (en) * | 2002-10-30 | 2004-05-06 | Klatskin Stuart D | Methods for inhibiting intergranular corrosion of metal surfaces |
| RU2267562C2 (en) * | 2003-10-09 | 2006-01-10 | Закрытое акционерное общество "Каустик" | Corrosion inhibitor for three-phase system |
| RU2347852C2 (en) * | 2007-03-09 | 2009-02-27 | Открытое акционерное общество "Каустик" (ОАО "Каустик") | Method of producing acidic corrosion inhibitors |
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