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Composition for removing catalyst powder from catalytic cracking slurry and removal method

A composition and catalyst technology, which can be used in tar processing, hydrocarbon oil dehydration/demulsification, petroleum industry, etc., can solve the problems affecting the oil slurry processing capacity and processing cost, and achieve the reduction of input cost, improvement of removal rate, The effect of saving investment

Active Publication Date: 2008-06-25
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, the oil slurry at the bottom of the container where the catalyst powder is enriched must be filtered and centrifuged to remove the catalyst powder and recover the oil slurry, which will affect the treatment capacity and cost of the oil slurry

Method used

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  • Composition for removing catalyst powder from catalytic cracking slurry and removal method
  • Composition for removing catalyst powder from catalytic cracking slurry and removal method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] The properties of the FCC oil slurry processed in this embodiment are shown in Table 1.

[0039] Table 1 Properties of FCC oil slurry

[0040]

[0041]6.4 g of glucose was added to 15.2 g of water, 0.8 g of 2% demulsifier BP2040 was added, and mixed with 1.6 g of 0.5% wetting agent (see Table 2 for details) to form a solution. After the solution is preheated to 95°C, mix it with 160g of FCC oil slurry preheated to 100°C, click and mix 50 times with a juicer, pour it into a test tube, apply an electric field in the demulsifier, and let it stand still to break the emulsion and separate the water , The electric field strength is 200v / cm. Take it out after 1 hour, pump out the lower layer of water, then take the treated FCC oil slurry and stir it evenly to measure the ash content, the results are shown in Table 2.

[0042] Table 2 Treatment effect of different wetting agents

[0043] D

[0044]

[0045] It can be seen from the above table that the...

Embodiment 2

[0047] The properties of the processed FCC oil slurry are the same as in Example 1.

[0048] Heat 160g FCC oil slurry to 100°C, keep the temperature and slowly add 15.2g water, 6.4g glucose, 0.8g 2% demulsifier BP2040 and 1.6g 0.5% wetting agent dodecylbenzenesulfonic acid under stirring condition sodium. After mixing thoroughly to dissolve it fully, use a juicer to click and mix 50 times, pour it into a test tube, apply an electric field in the demulsifier, let it stand for demulsification and water separation, the electric field strength is 200v / cm, take it out after 1 hour, and pump out the lower layer of water , and then take the treated FCC oil slurry and stir it evenly to measure the ash. The results show that: compared with the method prepared in advance, this method can also remove the catalyst powder in the FCC oil slurry, and the removal rate reaches 78.3%, and the ash content in the FCC oil slurry is reduced to 0.072%.

Embodiment 3

[0050] The properties of the processed FCC oil slurry are the same as in Example 1.

[0051] Take 6.4g glucose and add 47.2g water, add 0.8g 2% demulsifier BP2040, and mix with 0.5% wetting agent sodium dodecylbenzenesulfonate to form a solution. After the solution is preheated to 95°C, mix it with 160g of FCC oil slurry preheated to 100°C, click and mix 50 times with a juicer, pour it into a test tube, apply an electric field in the demulsifier, and let it stand still to break the emulsion and separate the water . The electric field strength is 200v / cm, take it out after 1 hour, pump out the lower layer of water, then take the treated FCC oil slurry and stir it evenly to measure the ash content, the results are shown in Table 3.

[0052] Table 3 Treatment effect of wetting agent with different dosage

[0053] Dosage of wetting agent

[0054] It can be seen from the above table that the catalyst powder can be removed from the FCC oil slurry and the ash content can ...

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Abstract

The invention provides a compound for removing catalyst fines in FCC oil slurry, containing wetting agent and demulsifying agent; the invention also provides a method using the compound to remove catalyst fines in the FCC oil slurry and a usage of the compound in removing catalyst fines in FCC oil slurry. The ash content of the FCC oil slurry which is removed the catalyst fines can be lowered to less than 0.01 percent, and the cost of the agent which is necessary for removing catalyst fines in each ton of FCC oil slurry is less than 5 Yuan.

Description

technical field [0001] The invention relates to a composition and a method for removing solid impurities in hydrocarbon fluids. Specifically, the present invention relates to a composition for removing catalyst powder in catalytic cracking oil slurry (hereinafter referred to as FCC oil slurry), a method for removing catalyst powder and the use of the composition. Background technique [0002] FCC oil slurry is an unconverted hydrocarbon with a boiling point greater than 350°C in the catalytic cracking process, which is rich in colloids and asphaltenes, and has the characteristics of high viscosity and high density. FCC oil slurry is mainly used as blending component of heavy fuel oil, raw material for hydrocracking, rubber and plastic processing aid, and can be used to produce carbon black and needle coke. FCC oil slurry is usually rich in solid catalyst powder, and the ash content is relatively high, generally between 0.2-0.9 wt%. When FCC oil slurry is used to produce ca...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10C1/00C10G33/00C10G29/20
Inventor 王振宇徐振洪于丽李本高
Owner CHINA PETROLEUM & CHEM CORP
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