TECHNOLOGY OF OBTAINING EFFECTIVE CORROSION INHIBITORS IN THE OIL AND GAS INDUSTRY

ТЕХНОЛОГИЯ ПОЛУЧЕНИЯ ЭФФЕКТИВНЫХ ИНГИБИТОРОВ КОРРОЗИИ В НЕФТЕГАЗОВОЙ ПРОМЫШЛЕННОСТИ
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Olimov B.B., Sadiqova M.I., Beshimov I.A. TECHNOLOGY OF OBTAINING EFFECTIVE CORROSION INHIBITORS IN THE OIL AND GAS INDUSTRY // Universum: технические науки : электрон. научн. журн. 2022. 1(94). URL: https://7universum.com/ru/tech/archive/item/12950 (дата обращения: 01.02.2023).
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DOI - 10.32743/UniTech.2022.94.1.12950

 

ABSTRACT

Today, the prevention of corrosion in the oil and gas industry is one of the most urgent problems. Therefore, it is necessary to improve the production technology of effective corrosion inhibitors. This article shows the technology of obtaining surface active substances that store aromatic groups in themselves.

АННОТАЦИЯ

Сегодня предотвращение коррозии в нефтегазовой отрасли является одной из наиболее актуальных проблем. Поэтому необходимо совершенствовать технологию производства эффективных ингибиторов коррозии. В данной статье показана технология получения поверхностно-активных веществ, накапливающих в себе ароматические группы.

 

Keywords: vinyl ether of diatomic phenols, methanal, sodium bisulfite,  MEA, hydrocarbon chains, raw materials

Ключевые слова: виниловый эфир двухатомных фенолов, метанaл, бисульфит натрия, МЭA, углеводородные цепи, сырье

 

Experience in the use of equipment and communications in oil fields shows that the development of anti-corrosion measures can only be carried out with careful control over the corrosion rate and aggressive component composition of metal equipment [1-2].

Most of the known methods for determining and controlling the corrosion of metals are associated with a very wide variety of external environmental conditions, which requires the correct selection of the test method and the control of the corrosion rate. The rational fight against corrosion in most cases depends on the individual properties of the metal and the corrosive properties of the environment [3-5].

At present, the reservoir water of the oil and gas fields has a slightly acidic environment, the composition of which includes sodium, calsium, magnesium chloride, a certain amount of sulfates, sometimes bicarbonate and microelements (iodine, bromine, etc.), as well as hydrogen sulfide, which is caused by the activity of sulfate-reparative bacteria. This reservoir water has high corrosion ability compared to oil and gas equipment and pipe network [6-7].

As is known, many surface active substances, especially aromatic, unsaturated hydrocarbon chains, compounds with polar and polar fragments, as well as sufficient molecular weight, have an inhibitor effect [8].

The technological process of obtaining new corrosion inhibitors synthesized includes the following stages: preparation of raw materials, implementation of synthesis, separation of the resulting substance, drying, crushing, sifting and packaging of finished products. It is possible to organize the technological process of production of corrosion inhibitors and compositions for metal composites and metals without changing the technologies on the basis of the production of other inhibiting additives. The organization of this type of production at enterprises where various wastes are generated allows solving urgent environmental issues and creating low-productivity technologies [9].

The technological scheme for the production of corrosion inhibitors SMKI and AMKI, obtained by the action vinyl ether of diatomic phenols with methanal and sodium sulfite, as well as methanal and monoethanolamine, is shown in Figure 1.

The reactor is equipped with P1 (a vertical cylindrical apparatus equipped with a mixer, heater and return coolant) from the measuring vessels C1 and C2, C3, C4 in the required amount of vinyl ether of diatomic phenols, methanal, sodium bisulfite or MEA.

 

Figure 1. C1 and C8 – capacitors; P1 – reactor; K1 and K4-pumps

 

The ingredients put in the reactor are heated to a temperature of 353-363 K with stirring, for 7 hours. Then the reaction mass is cooled to 293-297 K and sent to R2 for filtration. Adding ethanol to the reaction mass, the mass that started the reaction is precipitated. The sediment is sent to the S8-container and once again washed, the remaining sediment is dried and sent to the packaging. The product yield is 86-88%.

Table 1.

Cost of consumable materials for the production of 1 ton SMKI-branded corrosion inhibitor

Reagents

Cost of one unit, sum

Initial substance consumption for 1 ton, kg

The price of 1 t (1000 kg)

Resorsinol

67 500

100

6 750 000 sum

Calsium carbide

10 000

100

1 000 000  sum

methanal (formaline 37%)

6000

300

1 800 000 sum

Sodium bisulfite

5400

345

1 863 000 sum

Water

1100

155

170 500 sum

Total

 

 

11 583 500 sum

 

Thus, vinyl ether of diatomic phenols-based corrosion inhibitors have successfully passed production testing. As a result, the application of vinyl ether of diatomic phenols -based corrosion inhibitors will increase the service life of oil and gas industry materials.

 

References:

  1. Назаров Шомурод, Ахмедов Вохид, Олимов Бобир, Ҳаитов Садулло синтез мономеров при участии винилацетилена из одноатомных фенолов содержащих ариловую группу // Universum: химия и биология. 2020. №11-2 (77). URL: https://cyberleninka.ru/article/n/sintez-monomerov-pri-uchastii-vinilatsetilena-iz-odnoatomnyh-fenolov-soderzhaschih-arilovuyu-gruppu (дата обращения: 16.04.2021).
  2. Olimov, B., & Akhmedov, V. (2020). The effect of reaction duration and catalyst on the synthesis of arylvinyl esters. Збірник наукових праць ΛΌГOΣ, 33-37. https://doi.org/10.36074/20.11.2020.v2.07
  3. Bahodirovich, Olimov B., et al. "Synthesis of  Resorcinol Vinyl Ether in the Mono-position, Influence of the Catalyst, Temperature and Solvent on the Reaction Yield." JournalNX, 2020, pp. 44-51.
  4. Б.Б. Олимов, В.Н. Ахмедов, Ш.К. Назаров. Электронная структура и квантово-химические расчёты виниловых эфиров фенолов. U55 Universum: химия и биология: научный журнал. – № 4(70). М., Изд. «МЦНО», 2020. – 53-57с.
  5. B.B. Olimov, V.N. Ahmedov, S. Hayitov.  Ikki atomli fenollar asosida vinilli efirlarni olish usullari. Fan va texnologiyаlar taraqqiyoti ilmiy – texnikaviy  jurnal. - № 1/2020.
  6. Б.Б. Олимов, В.Н. Ахмедов. Винилацетилен асосида фенолларнинг винил эфирлари синтези. “Замонавий ишлаб чикаришнинг мухандислик ва технологик муаммоларини инновацион ечимлари” Халкаро илмий анжуман материаллари Бухоро. 2019. 37-39 б.
  7. В. Ахмедов, Б. Олимов, Г. Гафурова. Винилачетилен иштирокида винил эфирлар олиш. НамДУ илмий ахборотномаси - Научный вестник НамГУ 2021 йил 9-сон. 37-43 б.
  8. B.B. Olimov, V.N. Akhmedov, G.A. Gafurova. Application of derivatives of diatomic phenols as corrosion inhibitors. Euro Asian Conference on Analytical Research (Germany) ISBN: 978-1-913482-99-2. 2021. 15 October. p. 136-138.
  9. Olimov B., Akhmedov V., Gafurova G. Production and use of corrosion inhibitors on the basis of two-atomic phenols and local raw materials // Universum: химия и биология : электрон. научн. журн. 2021. 11(89). URL: https://7universum.com/ru/nature/archive/item/12473
Информация об авторах

PhD, docent of the Department of Chemistry Bukhara Engineering and Technology Institute, Republic of Uzbekistan Bukhara

PhD, и.о. доц. кафедры химии Бухарского инженерно-технологического института, Республика Узбекистан, г. Бухара

Assistant of the Department of Chemistry of the Bukhara Institute of Engineering-Technology, Uzbekistan, Bukhara

ассистент кафедры химии Бухарского инженерно-технологического института, Узбекистан, г. Бухара

Master degree student of the Bukhara Institute of Engineering-Technology, Uzbekistan, Bukhara

магистрант Бухарского инженерно-технологического института, Узбекистан, г. Бухара

Журнал зарегистрирован Федеральной службой по надзору в сфере связи, информационных технологий и массовых коммуникаций (Роскомнадзор), регистрационный номер ЭЛ №ФС77-54434 от 17.06.2013
Учредитель журнала - ООО «МЦНО»
Главный редактор - Ахметов Сайранбек Махсутович.
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