Yttrium-based oil-soluble high-temperature vanadium inhibitor and preparation method thereof

A vanadium inhibitor and base oil technology, applied in the petroleum industry, fuel additives, liquid carbon-containing fuels, etc., can solve the problems of moisture-absorbing skinning, uneven mixing, inconvenient use, etc., to avoid side effects, uniform dispersion, The effect of improving economy

Inactive Publication Date: 2020-09-29
吉林钜润环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Vanadium inhibitors are divided into water-soluble and oil-soluble. The water-soluble ones are inconvenient to use and limited in effect due to uneven mixing, easy moisture absorption and crusting, and the need for separate spraying facilities. They are gradually eliminated by oil-soluble vanadium inhibitors.

Method used

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  • Yttrium-based oil-soluble high-temperature vanadium inhibitor and preparation method thereof
  • Yttrium-based oil-soluble high-temperature vanadium inhibitor and preparation method thereof
  • Yttrium-based oil-soluble high-temperature vanadium inhibitor and preparation method thereof

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preparation example Construction

[0024] The invention provides a preparation method of an yttrium-based oil-soluble high-temperature vanadium inhibitor, comprising the following steps:

[0025] 1) Mix 50-90 parts of sulfonic acid, 10-30 parts of base oil, 200-1000 parts of solvent, 5-20 parts of methanol and 30-50 parts of yttrium oxide, and carry out acid-base reaction for more than 15 minutes;

[0026] 2) Add 5-20 parts of water and 5-20 parts of ammonia water to the product obtained in step 1) and pass CO 2 The reaction is carried out, and CO 2 After 20-60 minutes, add 5-20 parts of water and 5-20 parts of ammonia water again, continue the reaction for 30-60 minutes, and filter to obtain the yttrium-based oil-soluble high-temperature vanadium inhibitor.

[0027] During specific implementation, in step 1), the sulfonic acid can be selected from at least one of petroleum sulfonic acid, synthetic sulfonic acid, alkylbenzenesulfonic acid and alkylnaphthalenesulfonic acid, and is preferably petroleum sulfonic...

Embodiment 1

[0032] Accurately weigh 50g of C18 benzenesulfonic acid, base oil (its kinematic viscosity at 40°C is 50mm 2 / s) 15g, 300g of diesel oil, 35g of yttrium oxide, and 8g of methanol were placed in a four-neck flask, preheated to 40°C and stirred evenly at a stirring speed of 450r / min, and acid-base reaction was carried out at 40°C for 20min. Put 8g of water and 5g of ammonia water into the flask and feed CO2 at a rate of 6L / min. 2 Carry out carbonation reaction, while passing CO 2 After 50 minutes, add 5g of water and 5g of ammonia water again, continue to react for 60min, and filter to obtain the product of yttrium-based oil-soluble high-temperature vanadium inhibitor.

[0033] The product properties of the yttrium-based oil-soluble high-temperature vanadium inhibitor obtained in this embodiment are shown in Table 1 below.

[0034] Table 1

[0035] project analysis results Analytical method Density (20℃, g / cm 3 )

[0036] As can be seen from the data in Tab...

Embodiment 2

[0038] Accurately weigh 90g of petroleum sulfonic acid, base oil (its kinematic viscosity at 40°C is 100mm 2 / s~200mm 2 / s) 30g, 900g of C9 heavy aromatics, 50g of yttrium oxide, and 20g of methanol were placed in a four-neck flask and stirred evenly at a stirring speed of 450r / min, and acid-base reaction was carried out at 50°C for 30min. Put 20g of water and 20g of ammonia water into the flask and feed CO2 at a rate of 12L / min. 2 Carry out carbonation reaction, while passing CO 2 After 45 minutes, add 20g of water and 20g of ammonia water again, continue to react for 60min, and filter to obtain the product of yttrium-based oil-soluble high-temperature vanadium inhibitor.

[0039] The product properties of the yttrium-based oil-soluble high-temperature vanadium inhibitor obtained in this embodiment are shown in Table 2 below.

[0040] Table 2

[0041] project analysis results Analytical method Density (20℃, g / cm 3 )

[0042] As can be seen from the dat...

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Abstract

The invention relates to an yttrium-based oil-soluble high-temperature vanadium inhibitor and a preparation method thereof. The method comprises the following steps that 50-90 parts of sulfonic acid,10-30 parts of base oil, 200-1000 parts of a solvent, 5-20 parts of methyl alcohol and 30-50 parts of yttrium oxide are uniformly mixed and subjected to a reaction for 15 min or above; then 5-20 partsof water and 5-20 parts of ammonia water are added to a product obtained in the step 1), CO2 is introduced for a reaction, 5-20 parts of water and 5-20 parts of ammonia water are added again after CO2 is introduced for 20-60 min, and the reaction is continued for 30-60 min; and filtration is performed so as to obtain the yttrium-based oil-soluble high-temperature vanadium inhibitor. The oil-soluble high-temperature vanadium inhibitor disclosed by the invention takes a metal yttrium compound as a main body, has excellent high-temperature vanadium inhibition capability and excellent oxidation resistance, and can be used in an occasion of 1200 DEG C or above; and in addition, due to the fact that the oil-soluble high-temperature vanadium inhibitor does not contain a magnesium compound, the problems of gelling and surface skinning of a magnesium-based vanadium inhibitor are avoided.

Description

technical field [0001] The invention relates to the field of oil processing fuel additives, in particular to a yttrium-based oil-soluble high-temperature vanadium inhibitor for preventing vanadium corrosion and a preparation method thereof. Background technique [0002] In order to control raw material costs and utilize low-value fractions, heavy components such as residual oil, oil slurry, and asphalt may become part or all of the fuel for gas turbines, gasifiers, oil-fired boilers, and internal combustion engines. The above-mentioned heavy fractions will enrich the nickel, vanadium, calcium, iron and other metal elements in the crude oil in the form of naphthenates, porphyrin compounds, etc., and have a negative impact on the utilization process of oxidative combustion, especially The negative effects of vanadium are staggering. Different forms of vanadium elements produce vanadium pentoxide with a melting point of about 670°C under strong oxidation conditions, while the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10L1/12C10L10/04
CPCC10L1/1216C10L10/04C10L2230/08
Inventor 李辉马庆功李向阳
Owner 吉林钜润环保科技有限公司
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