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Preparation method for oil slurry scale inhibitor of catalytic cracking apparatus

A catalytic cracking unit and scale inhibitor technology, which is applied in the petroleum industry, hydrocarbon oil treatment, equipment corrosion/scaling inhibition, etc., can solve the problems of no scale inhibition effect, scale inhibitor decomposition, etc., and achieve low production cost and excellent reaction conditions Mild, good anti-scaling effect

Pending Publication Date: 2018-11-23
威海翔泽新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because most domestic oil slurry scale inhibitors will decompose after use when the temperature of the fractionation tower is higher than 370°C, and have no scale inhibition effect

Method used

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  • Preparation method for oil slurry scale inhibitor of catalytic cracking apparatus

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] An oil slurry scale inhibitor used in catalytic cracking units, which contains alcohol ether, polyether, polyester and water.

[0023] The alcohol ether is diethylene glycol butyl ether.

[0024] The polyether is .

[0025] The polyester is polyethylene glycol 400 monooleate.

[0026] The mass ratio of the polyether, alcohol ether, polyester and water is 1:1:1:1.

Embodiment 2

[0028] An oil slurry scale inhibitor used in catalytic cracking units, which contains alcohol ether, polyether, polyester and water.

[0029] The alcohol ether is dipropylene glycol butyl ether.

[0030] The polyether is .

[0031] The polyester is polyethylene glycol 400 dioleate.

[0032] The mass ratio of the polyether, alcohol ether, polyester and water is 1:5:3:4.

Embodiment 3

[0034] An oil slurry scale inhibitor used in catalytic cracking units, which contains alcohol ether, polyether, polyester and water.

[0035] The alcohol ether is ethylene glycol ether.

[0036] The polyether is .

[0037] The polyester is polyethylene glycol 600 monooleate.

[0038] The mass ratio of the polyether, alcohol ether, polyester and water is 1:3:2:2.

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Abstract

The invention provides an oil slurry scale inhibitor for a catalytic cracking apparatus. The oil slurry scale inhibitor comprises alcohol ether, polyether, polyester, and water. The oil slurry scale inhibitor has aqueous soluble oil dispersion property, is an environment-friendly agent, and is free from inflammable and explosive risk and safe and low in toxicity; the accumulation and deposition ofcorrosive products, salts and impurity particles in oil can be prevented, and the generation of inorganic scales can be reduced; the oil slurry scale inhibitor can form inert molecules with oxidizedhydrocarbon free radicals, so that the chain reaction is terminated, no macromolecular polymer can be formed, and the generation of organic scales can be reduced; and the prepared oil slurry scale inhibitor is not decomposed at the temperature of 200 to 500 DEG C, and can keep good scale inhibition performance.

Description

technical field [0001] The invention belongs to special chemicals for oil refining, in particular to an oil slurry scale inhibitor used for catalytic cracking units. Background technique [0002] As the quality of crude oil becomes heavier and worse, the fouling problem of oil processing equipment and pipelines becomes increasingly prominent. The coking and fouling problems in the oil slurry system of catalytic cracking units have become the main problems restricting the long-term operation of catalytic cracking units. The scale composed of hydrocarbon components deposited on the surface of catalytic cracking equipment not only increases thermal resistance and reduces heat transfer efficiency, but also adheres to the surface of pipes and containers, sticking to filter screens, cocks and baffles, causing flow path changes Narrow, resulting in increased power consumption, and even unplanned parking, resulting in serious losses in production. Such accidents caused by dirt oft...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G75/04
CPCC10G75/04
Inventor 王俊谕李洪社喻果程晓婷
Owner 威海翔泽新材料科技有限公司
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