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Method for removing nickel and vanadium from hydrocarbon oil

A hydrocarbon oil removal technology, applied in the field of nickel and vanadium removal, can solve the problems of low content and inapplicability, and achieve the effect of large investment, low cost and mild reaction conditions

Active Publication Date: 2014-03-12
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this method is that it is only suitable for removing nickel and vanadium in wax oil, not suitable for removing nickel and vanadium in crude oil, atmospheric residue or vacuum residue, and nickel and vanadium in wax oil content is usually low

Method used

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  • Method for removing nickel and vanadium from hydrocarbon oil
  • Method for removing nickel and vanadium from hydrocarbon oil
  • Method for removing nickel and vanadium from hydrocarbon oil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Crude oil density 0.86g / cm 3 , Viscosity (50°C) 8.484mm 2 / s, the metal removal agent is phosphorous acid, and the demulsifier is NS-9800 (produced by Nanjing Petrochemical).

[0026] Scheme 1, take 80g of crude oil in a beaker, add 2000μg / g demetallization agent, place it in a VCX750 type ultrasonic reactor, react at room temperature for 30min, adopt intermittent operation (run for 2s and stop for 4s), and the amplitude is 87μm. Pour into a mixer, add 10g of distilled water and 20μg / g demulsifier to fully mix, put it into a water separator bottle and place it in an electrostatic field for 30min to separate oil and water, the temperature is 80°C, the electric field strength is 400V / cm, and the obtained upper oil sample is sampled Analysis of metal nickel and vanadium content.

[0027] Option 2: Take 80g of crude oil in a beaker, put it in a VCX750 ultrasonic reactor, and react at room temperature for 30min, using intermittent operation (running for 2s and stopping for...

Embodiment 2

[0032] Crude oil density 0.90g / cm 3 , Viscosity (80°C) 50.16mm 2 / s, belongs to low-sulfur paraffinic crude oil, the demetallization agent is hydroxyethylene diphosphonic acid (HEDP), and the demulsifier is 2635A (produced by Shandong Binhua Group).

[0033] The crude oil was preheated to 80°C and then subjected to ultrasonic reaction. The electrostatic field treatment time was 40 minutes, the temperature was 90°C, and the electric field strength was 400V / cm. Other conditions were the same as in Example 1. The test results are shown in Table 2.

[0034] Table 2

[0035]

Embodiment 3

[0037] Crude oil density 0.96g / cm 3 , Viscosity (80°C) 48.56mm 2 / s, belongs to high-sulfur naphthenic crude oil, methanesulfonic acid is the demetallizer, and NS-2040 (produced by Nanjing Petrochemical) is the demulsifier.

[0038] The crude oil was preheated to 80°C and then subjected to ultrasonic reaction. The electrostatic field treatment time was 60 minutes, the temperature was 100°C, and the electric field strength was 400V / cm. Other conditions were the same as in Example 1. The test results are shown in Table 3.

[0039] table 3

[0040]

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Abstract

The invention relates to a method for removing nickel and vanadium from hydrocarbon oil. The method comprises the following steps: 1, the hydrocarbon oil is processed by ultrasonic waves at a temperature of 20-150 DEG C, and the viscosity of the hydrocarbon oil under the processing temperature is equal to or less than 100mm<2> / s; 2, the hydrocarbon oil which is processed by the ultrasonic waves is mixed with a demulsifier and water, and an oil phase is separated after demulsifying and dehydrating under the effect of an electric field; and 3, a demetallization agent is added in step 1 or step 2. The method provided by the present invention can effectively remove nickel and vanadium from the hydrocarbon oil.

Description

technical field [0001] The present invention relates to a method for removing nickel and vanadium from hydrocarbon oil. Background technique [0002] With the continuous deepening of crude oil exploitation, the nature of crude oil tends to be heavy and inferior, and the metal content in some crude oil is generally high, especially the content of nickel and vanadium. Compared with other metal elements, nickel and vanadium mostly exist in colloids and asphaltenes in the form of porphyrin and non-porphyrin organic complexes, and it is difficult to remove them by electric desalination equipment. Nickel and vanadium are very harmful to the secondary processing of crude oil, such as poisoning of catalytic cracking catalyst, catalyst deactivation and bed plugging in heavy oil hydrocracking process. Vanadium is more harmful to fuel oil, such as when vanadium is burned (Na 2 O) x V 2 o 5 The low melting point eutectic substances can induce thermal corrosion of metal equipment, c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G53/10
Inventor 沈明欢楚喜丽谭丽徐振洪李本高
Owner CHINA PETROLEUM & CHEM CORP