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Scale inhibitor for S-Zorb device, preparation method 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., can solve the problems such as short application time, and achieve the goals of reducing energy consumption, adding a small amount, and inhibiting coking Effect

Active Publication Date: 2018-07-31
金浦新材料股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Because S-Zorb is an imported foreign technology, it has not been used in my country for a long time, so there is no particularly effective antiscalant on the market for the coking of heat exchangers in S-Zorb devices. The inventor is deeply understanding the S-Zorb process On the basis of the S-Zorb scale inhibitor, it can effectively prevent colloid, butadiene and other components from coking in the heat exchanger.

Method used

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  • Scale inhibitor for S-Zorb device, preparation method and application thereof
  • Scale inhibitor for S-Zorb device, preparation method and application thereof
  • Scale inhibitor for S-Zorb device, preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0061] Take 10g of polyisobutylene Mannich base, 10g of 4-hydroxy-2,2,6,6-tetramethylpiperidine nitroxide radical, 10g of 2,5-di-tert-butylhydroquinone and S-1000 # 70g of aromatic solvent oil, mixed and stirred uniformly in a reaction kettle under normal temperature and pressure.

[0062] See Table 1 and Table 2 for measuring the nitrogen content and metal ion content of the scale inhibitor obtained in this implementation.

[0063] The antiscalants obtained in this example were added to catalytically cracked gasoline at the addition amount of 100ppm, 150ppm and 200ppm respectively, and the antiscalant performance, dispersion performance and emulsification performance were measured, see figure 2 , Table 3, Table 4 and image 3 .

Embodiment 2

[0065] Take 15g of polyisobutylene Mannich base, 10g of 4-hydroxy-2,2,6,6-tetramethylpiperidine nitroxide radical, 8g of 2,5-di-tert-butylhydroquinone and S-1000 # 67g of aromatic solvent oil, mixed and stirred evenly under normal temperature and pressure in a reaction kettle.

[0066] See Table 1 and Table 2 for measuring the nitrogen content and metal ion content of the scale inhibitor obtained in this implementation.

[0067] Add the antiscalant obtained in this example to catalytic cracking gasoline at the addition amount of 100ppm, 150ppm and 200ppm respectively, and measure its antiscalant performance, dispersion performance and emulsification performance, see Table 3, Table 4 and image 3 .

Embodiment 3

[0069] Take 20g of polyisobutylene Mannich base, 1g of 1,1-diphenyl-2-trinitrophenylhydrazine, 6g of 4-hydroxyl-2,2,6,6-tetramethylpiperidine nitroxide free radical, 2 , 5-di-tert-butylhydroquinone 6g, p-tert-butylcatechol 2g and S-1500 # 65g of aromatic solvent oil, mixed and stirred evenly under normal temperature and pressure in a reaction kettle.

[0070] See Table 1 and Table 2 for measuring the nitrogen content and metal ion content of the scale inhibitor obtained in this implementation.

[0071] Add the antiscalant obtained in this example to catalytic cracking gasoline at the addition amount of 100ppm, 150ppm and 200ppm respectively, and measure its antiscalant performance, dispersion performance and emulsification performance, see Table 3, Table 4 and image 3 .

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Abstract

The invention discloses a scale inhibitor for an SZorb device, a preparation method and application thereof. The scale inhibitor is prepared from the following raw materials in percent by weight: 1-10% of free-radical capturing agent, 5-40% of cleaning dispersant, 1-10% of antioxidant and 30-70% of organic solvent; the scale inhibitor does not contain metal ions. The preparation method comprises the following steps of: taking all the raw materials according to a set proportion, uniformly mixing and stirring under normal temperature and normal pressure to obtain the scale inhibitor. The scale inhibitor disclosed by the invention not only can inhibit coking and scaling, but also has dispersing and cleaning effects for formed cokes; the preparation method of the scale inhibitor is simple andeasy in implementation and low in cost; after the scale inhibitor is added into catalytically-cracked gasoline, no toxicity and harm are caused to the SZorb device and environment, the addition amountis low and the use cost is low.

Description

technical field [0001] The invention relates to the technical field of scale inhibitors, in particular to a scale inhibitor used for S-Zorb devices and its preparation method and application. Background technique [0002] Sulfur and olefins in gasoline basically come from catalytic cracking gasoline components, which are characterized by high sulfur content and high olefin content, and as the raw material for catalytic cracking processing becomes heavier, the content of sulfur and olefins in gasoline will further increase. raised. The increase of sulfur content in motor gasoline will directly increase the SO in exhaust gas x emissions and can poison catalysts in automobile exhaust converters. Therefore, choosing an advanced and reasonable process technology to desulfurize FCC gasoline is the key to clean gasoline production and quality improvement. [0003] The S-Zorb catalytic cracking gasoline adsorption desulfurization process is an adsorption desulfurization technolog...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G75/04
CPCC10G75/04
Inventor 璩洁荷戴泽青葛圣才丁国来
Owner 金浦新材料股份有限公司
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