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Coking-suppressing antiscale and application thereof

A technology of anti-scaling agent and application method, which is applied in the direction of treatment equipment corrosion/scaling inhibition, petroleum industry, hydrocarbon oil treatment, etc. It can solve the problems of low cost and difficulty in adapting to the coking and fouling process, and achieves low cost and small addition amount , the effect of great flexibility

Inactive Publication Date: 2005-07-20
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The methods mentioned in the above patents are mostly monomeric compounds. Although the cost of monomeric compounds is low, it is difficult to adapt to the coking and fouling process caused by various reasons.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Add 300 grams of triethyl phosphate, 100 grams of diacetyl-oxime and 600 grams of octyl acetate into a container respectively, raise the temperature to 80°C, stir at a constant temperature to make it evenly mixed, and then cool to room temperature to obtain the product As a coke-suppressing and anti-scaling agent, the code name is A-1.

Embodiment 2

[0032] Add 200 grams of tripropyl phosphate, 100 grams of acetoxime and 700 grams of dehydrated diethyl malate into a container, raise the temperature to 80°C, stir at constant temperature for 1 hour, then add 50 grams of eugenol, 40 grams Tetrahydronaphthalene and 10 grams of thiophene were continuously stirred at a constant temperature to make them evenly mixed, and then cooled to room temperature, and the obtained product was used as a coke-suppressing and anti-scaling agent, code-named A-2.

Embodiment 3

[0034]Add 400 grams of triisooctyl phosphate, 100 grams of benzoin oxime and 600 grams of ethylene glycol dilaurate into a container respectively, raise the temperature to 90°C, stir at constant temperature for 1 hour, then add 80 grams of 2,6- Ditert-butylcresol, 50 grams of dihydrophenanthrene and 20 grams of benzothiophene were stirred at a constant temperature to make them evenly mixed, and then cooled to room temperature. The obtained product was used as a coke-suppressing and anti-scaling agent, code-named A-3.

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Abstract

The present invention is scaling and coking preventer for petroleum processing and petrochemical industry and its application. The scaling and coking preventer contains organic sulfide, organic phophide, phenol, oxime, organic ester, hydrogen donator, etc. The scaling and coking preventer has high oil solubility, high use temperature, simple preparation process, low cost, flexible use and wide application range. It may be used in various petroleum processing and petrochemical processes and has no any negative effect on the technological process.

Description

technical field [0001] The present invention relates to a kind of anti-coking anti-scaling agent and application thereof that can effectively inhibit coking and scaling in petroleum processing and petrochemical process, especially the preparation and application of chemical additives for preventing chemical equipment and pipelines from coking and scaling at high temperature. The invention belongs to the technical field of coke suppression and scale prevention in industrial production, especially petroleum processing and petrochemical production process. Background technique [0002] As we all know, with the deterioration and heavyness of exploited crude oil, and the wide application of deep processing of heavy and residual oil, it is very common for chemical equipment and pipelines in the process of petroleum processing and petrochemical industry to coke and scale at high temperatures. More serious, it brings troubles to the safe production and stable...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G75/00
Inventor 董志学
Owner CHINA PETROLEUM & CHEM CORP