Utilization of products of demercaptanization of hydrocarbon raw material

Ахметов, Л. И.; Колбин, А. М.; Ismagilov, F. R.; Podshivalin, A. V.; Tuktarova, I.O.

doi:10.1007/bf02694237

Cited by 3 publications

(2 citation statements)

References 2 publications

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“…В свою очередь, еже-годная, а иногда и более частая, замена контактных устройств ведет к значительным экономическим потерям, а также к необходимости утилизации отработанных контактных устройств в виде отходов, содер-жащих сульфиды, меркаптиды, тяжелые металлы Сr, Ni, Тi, Mn и дру-гие вредные компоненты [4][5][6][7].…”

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Creation of anticorrosion coatings for contact devices of rectifying columns

Katamanov¹,

Nazarov²,

Garankov³

et al. 2018

Nanotehnol. stroit.

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ExtEndEd AbstrAct:Today the main corrosion protection methods applied in contact devices of rectifying oil processing equipment, in particular, in mesh nozzles made of stainless steel, under relatively high temperatures (150-250 о C) and in the presence of aggressive components in oil raw materials (hydrogen sulfide, sulfides, mercaptans, other sulphurous compounds, chloride ions, organochlorine connections, water) are to use special alloys as protecting covers as well as corrosion inhibitors that reduce corrosion action of hostile environment. At the same time, the disadvantages of the majority of these methods concern high operational costs, insufficient efficiency or protection ability designed only for a certain factor, but not for combination of them.In this regard corrosion resistance of mesh contact devices made of stainless steel (brand SUS 321) has been studied on three types of samples: alloy wire, welded grid, thin leaf. THE RESULTS OF THE SPECIALISTS' AND SCIENTISTS' RESEARCHES MAchinE-rEAdAblE inforMAtion on cc-licEnsEs (htMl-codE) in MEtAdAtA of thE pApErTitanium nitride (TiN) and metallic coatings from nickel (Ni), titanium (Ti) and chrome (Cr) were used as anticorrosion coatings for the mentioned samples. These coverings were applied on samples in two ways: by means of electrolytic method and vacuum ion-plasma dusting. It was determined that optimal coating thickness is 10-15 microns as it is the thickness at which the produced films possess sufficient plasticity and do not exfoliate from the surface of the corresponding corrosion-proof alloy.The research of corrosion of samples of stainless steel SUS 321 with applied coverings and without them was performed by immersing the samples into compositions that contain oil as well as into the modeling hostile oil-containing environment. As a result of the conducted researches it was determined that the protecting covers of chrome and titanium nitride applied with vacuum ion-plasma dusting method are the most effective coatings from the point of view of anticorrosive protection for mesh contact devices of stainless steel used in rectifying columns.

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Creation of anticorrosion coatings for contact devices of rectifying columns

Katamanov¹,

Nazarov²,

Garankov³

et al. 2018

Nanotehnol. stroit.

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“…polarity) sulphoxides and sulphones are widely used in different industries: in petroleum industry -for the production of high-effective inhibitors of solid deposits formation; for the production of corrosion inhibitors, antiscoring and antioxidizing additives; as plastifiers at polymers production; in hydrometallurgy -for enrichment and extraction of various precious and rare metals; for the production of fluorescent materials; in agriculture and animal husbandry -for animals treatment and increase of the crop capacity; as cutting fluids at metals working, etc. [7,8,[9][10][11][12][13][14][15]16]. The first attempts of sulphones and sulphoxides obtaining were based on the fact that sulphides and their oxidation products are dissolved in sulphuric acid with the formation of complexes [17].…”

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Oxidative Processing of Light Oil Fractions. A Review

Pyshyev¹,

Lazorko²,

Bratychak³

2009

ChChT

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Optimal Design of Heat Exchanger Network in Oil Refineries

Abbasov¹

2021

ETM

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Today, the main methods of protection against corrosion of contact devices of rectification equipment for oil refining, in particular, stainless steel mesh packing, under conditions of relatively high temperatures (150–250°C) and in the presence of aggressive components in oil feedstock (hydrogen sulfide, sulfides, mercaptans, other sulfur compounds, chloride ions, organochlorine compounds, water) are the use of special alloys as protective coatings, as well as corrosion inhibitors that reduce the corrosive effect of an aggressive environment. At the same time, most of these methods have disadvantages associated with high operating costs, insufficient efficiency, or the ability to protect only from a certain factor, and not from their combination. In this regard, studies of the corrosion resistance of mesh contact devices made of stainless steel grade 12Х18Н10Т, on three types of samples: alloy wire, welded mesh, thin sheet. Titanium nitride (TiN) and metal coatings of nickel (Ni), titanium (Ti) and chromium (Cr) were used as anticorrosive coatings for these samples. These coatings were applied to the samples by two methods: electrolytic method and vacuum ion-plasma spraying. It was found that the optimum thickness of the coating is 10–15 µm, at which the resulting films have sufficient ductility and do not peel off from the surface of the corresponding stainless alloy. The study of corrosion of samples of stainless steel 12Cr18N10T with applied coatings and without coatings was carried out by immersion in compositions containing oil, as well as in simulating aggressive oil-containing media. As a result of the studies, it was found that protective coatings of chromium and titanium nitride, applied by vacuum ion-plasma spraying, are the most effective from the point of view of corrosion protection of stainless steel mesh contact devices used in rectification columns. Keywords: rectification column, mesh contact devices, stainless steel, aggressive media, corrosion inhibitors, anti-corrosion protective coatings.

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Utilization of products of demercaptanization of hydrocarbon raw material

Cited by 3 publications

References 2 publications

Creation of anticorrosion coatings for contact devices of rectifying columns

Creation of anticorrosion coatings for contact devices of rectifying columns

Oxidative Processing of Light Oil Fractions. A Review

Optimal Design of Heat Exchanger Network in Oil Refineries

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