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Process for removing Ni and V from fractional oil of crude oil

A process method and distillate oil technology, applied in the petroleum industry, refined hydrocarbon oil, etc., can solve the problems of difficult disposal of spent catalysts, large investment, and restrictions on industrial application

Inactive Publication Date: 2002-07-03
CHINA PETROCHEMICAL CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The hydrodemetallization unit has a huge investment, and it is difficult to regenerate the spent catalyst, which makes it difficult to dispose of the spent catalyst. Solvent deasphalting can only remove nickel and vanadium in the residual oil with high asphalt content, and the investment is large and the operating cost is high. Therefore, industrial application restricted

Method used

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  • Process for removing Ni and V from fractional oil of crude oil
  • Process for removing Ni and V from fractional oil of crude oil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Arabian Light Oil Residue (Laboratory Experiment)

[0017] Experimental method: Weigh 50g of raw material oil, put it into a 100ml three-neck flask with stirring, drop in the demetallization agent, the ratio of the demetallizer to the raw material oil is 1:3000, seal it with nitrogen gas, heat and stir the reaction, the reaction temperature is 300°C, The reaction time is 60 minutes, after the reaction, cool down, take out about 20g, add it to a stainless steel tube, add water at a constant temperature of 120°C, mix the demulsifier thoroughly, apply an electric field to separate, and take the oil phase to analyze the metal content. The obtained results are shown in Table 1 below.

[0018] Example

Embodiment 2

[0020] Domestic residual oil (industrial pilot test)

[0021] Residue oil flow: 1m 3 / h 3m 3 / h(maximum)

[0022] Desalinated water volume: 0.1m 3 / h 0.2m 3 / h(maximum)

[0023] Residual oil temperature: 300°C

[0024] Demetallization agent dosage: 500ppm

[0025] The technological process is a reaction tank connected in series with two electric desalination tanks. The results obtained are shown in Table 2

[0026] Example

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Abstract

A process for removing Ni and V from the fractional oil of crude oil includes reaction of dementalating agent on the said fractional oil at 200-400 deg.C for 20-300 min, cooling to 100-150 deg.c, adding water and demulsifier and separating under 200-150 v / cm of electric field.

Description

technical field [0001] The invention belongs to the field of oil refining and chemical industry, and relates to a process method for removing metal from distillate oil, in particular to a process method for removing nickel vanadium from crude oil distillate oil. Background technique [0002] The existence of nickel and vanadium in distillate oil is very harmful to the oil refining industry. According to the existence form and physical and chemical properties of nickel and vanadium in petroleum distillate oil, acid extraction, hydrogenation, chelation separation, and solvent extraction can be used. and other methods to remove. Judging from the current application situation at home and abroad, only the hydrogenation method has been applied industrially. [0003] Since nickel vanadium mainly exists in residual oil, it seriously affects the product yield and catalyst activity during hydrodesulfurization or catalytic cracking, so some refineries have adopted hydrodemetallization...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G29/00
Inventor 娄世松贾鹏林张鸿勋沙鸥楚喜丽吴皎峰刘英
Owner CHINA PETROCHEMICAL CORP