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Special anticorrosive agent for gasoline and diesel hydrogenation device and preparation method thereof

A technology of hydrogenation device and anti-corrosion agent, which is applied in the fields of processing equipment corrosion/fouling inhibition, petroleum industry, processing hydrocarbon oil, etc. , to achieve the effect of slowing down corrosion, preventing or reducing corrosion operations, and reducing iron ions

Inactive Publication Date: 2021-05-11
江苏汉光实业股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] With the long-term and large-scale exploitation of oilfields, the properties of crude oil are gradually deteriorating, and impurities such as sulfur, chlorine, oxygen, and nitrogen in crude oil produce corrosive substances such as hydrogen sulfide, sulfuric acid, hydrochloric acid, ammonia, and cyanide due to heat and other reasons, as well as hydrogenation equipment. The development and inferior quality of hydrogenation raw materials, the corrosion of the hydrogenation unit reaction effluent air cooler system equipment and pipelines are also more serious, which has a serious impact on the safety, stability and long-term operation of the unit
During the process of hydrofining and hydrogenation degradation, the corrosion of equipment gradually becomes serious. When the corrosion is severe, it may cause equipment perforation, which will endanger the safe operation of the equipment and even cause emergency shutdown. Therefore, anti-corrosion measures must be taken to be able to Ensure the long-term operation of the device

Method used

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  • Special anticorrosive agent for gasoline and diesel hydrogenation device and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016]15% of the imidazoline, 35% ethylenediamine, 20% of the organic solvent, 10% of the 10% dehydrated water were taken by mass, and the organic solvent was used as a dieol and methanol. 1: 1 mixed, first mixed the organic amine, organic solvent, and dehydrate, stir mixed with the reaction kettle at normal temperature, mixed for 30 minutes, mixed with a metallite-chinentene or derivative thereof under stirring conditions and warmed to 60 ° C. After 1 to 1.5 hours, the alcohol compound was added to the alcohol and continued to stir 0.5 to 1 hour, and then the product was filtered.

Embodiment 2

[0018]A 30% imidazoline, 20% ethylenediamine, 20% of the organic solvent, 10% of the 10% dehydrated water were taken according to the percentage of mass percent, and the organic solvent was used as diethylene glycol and methanol according to mass ratio. 1.5: 1 mixed, first additionally, the organic amine, organic solvent, and dehydrate were first added to the reaction kettle at normal temperature, stir mixed for 30 minutes, mixed with a metallic acid cyclic pentene or a derivative thereof under stirring and warmed to 60 ° C. After 1 to 1.5 hours, the alcohol compound was added to the alcohol and continued to stir 0.5 to 1 hour, and then the product was filtered.

Embodiment 3

[0020]15% of the imidazoline, 25% ethylenediamine, 30% of the organic solvent, 10% of 10%, and 20% desalt, which were used in mass, of which the organic solvent is diethylene glycol with methanol and methanol. 2: 1 mixed, first mixing organic amines, organic solvents, and dehydrate, stir mixing at normal temperature, mixing for 30 minutes, mixed with meta-antlycrocyclopentene or derivative thereof and raised to 60 ° C under stirring. After 1 to 1.5 hours, the alcohol compound was added to the alcohol and continued to stir 0.5 to 1 hour, and then the product was filtered.

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PUM

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Abstract

The invention discloses a special anticorrosive agent for a gasoline and diesel hydrogenation device. The special anticorrosive agent comprises the following components by mass percentage: 15-30% of imidazoline or a derivative thereof, 20-35% of an organic compound, 20-30% of an organic solvent, 10-15% of an alcohol compound and 20-35% of desalted water. The anticorrosive agent belongs to a composite corrosion inhibitor composed of a film-forming corrosion inhibitor and a neutralizing corrosion inhibitor, the slow release rate is increased to 95% or above from about 90% of the original corrosion inhibitor of the same kind, and the corrosion problem of high-pressure air coolers, downstream equipment and pipeline equipment of hydrofining and hydrocracking devices can be effectively solved.

Description

Technical field[0001]The present invention belongs to the field of petrochemical, and specific to the special anti-corrosion resistant for steam diesel hydrogenation device and the preparation method thereof.Background technique[0002]As the long-term mining of the oil field, the nature of crude oil is gradually deteriorated. The corrosionic substances such as hydrogen sulfide, sulfuric acid, hydrochloric acid, ammonia and cyanide are produced due to heat such as heat such as heat. The inferiority of development and hydrogenation raw materials, the corrosion of the hydrogenation device and the corrosion of the hydrogen-free system equipment and pipelines are also more serious, and the safety, stability and long-term operation of the device have a serious impact. Hydrogenation, the equipment corrosion gradually becomes serious during hydrocarbon, and the corrosion is severe. It may cause the equipment to perforate, which causes harm to the safe operation of the equipment, and even cau...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G75/02
CPCC10G75/02
Inventor 顾法明李正中吴旭忠匡文荣
Owner 江苏汉光实业股份有限公司
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