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Composition used for reducing hydrocarbon oil metal content and its application and method for reducing hydrocarbon oil metal content

A composition and content technology, applied in the refining hydrocarbon oil, petroleum industry and other directions, can solve the problems of only reaching 20-40%, unsatisfactory calcium and iron removal effect, etc., and achieve the effect of reducing metal content

Active Publication Date: 2017-01-18
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, when the above method is used to demetallize the residual oil, the removal effect of calcium and iron is not ideal, the removal rate of calcium is usually only 30-50%, and the removal rate of iron can only reach 20-40%.

Method used

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  • Composition used for reducing hydrocarbon oil metal content and its application and method for reducing hydrocarbon oil metal content
  • Composition used for reducing hydrocarbon oil metal content and its application and method for reducing hydrocarbon oil metal content
  • Composition used for reducing hydrocarbon oil metal content and its application and method for reducing hydrocarbon oil metal content

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0064] (1) Atmospheric residual oil (density (20°C) is 0.9621g / cm 3 , wherein the content of calcium is 23.1μg / g, the content of iron is 9.2μg / g) and aminotriacetic acid, 4-tert-butylphenylacetonitrile, xylene, polyoxyethylene-polyethylene oxide with phenolic resin as the initiator Oxypropylene block copolymer (purchased from Shandong Binzhou Chemical Group, the number average molecular weight of polyoxyethylene-polyoxypropylene block copolymer is 12000, based on the total amount of this polyoxyethylene-polyoxypropylene block copolymer , the content of the oxyethylene structural unit is 32% by weight, the content of the oxypropylene structural unit is 68% by weight) and water are stirred evenly. Wherein, based on the weight of atmospheric residual oil, the consumption of aminotriacetic acid is 600 μg / g, the consumption of 4-tert-butylphenylacetonitrile is 1000 μg / g, and the consumption of polyoxyethylene-polyoxypropylene block copolymer is 50 μg / g, relative to 100 parts by we...

Embodiment 2

[0082] (1) The vacuum residue (density (20°C) is 0.9502g / cm 3 , wherein the calcium content is 36.0 μg / g, the iron content is 23.6 μg / g) and hydroxyethylidene diphosphonic acid, 4-isopropylphenylacetonitrile, 180 # Aromatic solvent oil, polyoxyethylene-polyoxypropylene block copolymer (purchased from Shandong Binzhou Chemical Industry Group, the number average molecular weight of polyoxyethylene-polyoxypropylene block copolymer is 13000 with phenolic resin as initiator) Based on the total amount of the polyoxyethylene-polyoxypropylene block copolymer, the content of the oxyethylene structural unit is 35% by weight, and the content of the oxypropylene structural unit is 65% by weight) and stirred with water evenly. Among them, based on the weight of the vacuum residue, the amount of hydroxyethylidene diphosphonic acid is 400 μg / g, the amount of 4-isopropylphenylacetonitrile is 1500 μg / g, and the polyoxyethylene-polyoxypropylene block copolymer The dosage is 100μg / g, relative t...

Embodiment 3

[0101] The hydrocarbon oil was treated in the same manner as in Example 2, except that in step (1), the hydroxyethylidene diphosphonic acid was replaced by an equal weight of acetic acid.

[0102] The experimental results are listed in Table 2.

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Abstract

The invention discloses a composition used for reducing hydrocarbon oil metal content and an application thereof. The composition contains acid, a cyan-containing compound, aromatic hydrocarbon and a polyoxyethylene-polypropylene oxide segmented copolymer, the acid is selected from water-soluble phosphonic acid and water-soluble carboxylic acid, the polyoxyethylene-polypropylene oxide segmented copolymer takes phenolic resin or phenol-amine resin as a starting agent, and the cyan-containing compound is selected from aromatic nitrile with at least one hydrogen atoms substituted by C3-C8 branched-chain alkyls on aryl, and aralkyl nitrile with at least one hydrogen atom substituted by C3-C8 branched-chain alkyl on aryl. The invention also provides a method for reducing hydrocarbon oil metal content, which comprises mixing hydrocarbon oil with components in the composition and water, and a mixture is subjected to oil-water separation to obtain an oil phase and a water phase. The composition can effectively reduce the metal content of hydrocarbon oil, especially removes the calcium and iron in residuum.

Description

technical field [0001] The invention relates to a composition for reducing the metal content of hydrocarbon oil and its application, and also relates to a method for reducing the metal content of hydrocarbon oil. Background technique [0002] With the increasingly serious trend of crude oil becoming heavier and inferior, the metal content in crude oil is also getting higher and higher, which has a negative impact on the deep processing of crude oil. At present, due to the increasing demand for light oil and the pursuit of maximizing the benefits of crude oil processing, the use of residual oil hydrotreating and catalytic cracking technology to process residual oil can obtain greater economic benefits. Therefore, residual oil hydrogenation technology With rapid development, residual oil processing technology has also become an important topic in the development of petroleum processing technology. [0003] Due to the high content of calcium, iron and other metals in the resid...

Claims

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Application Information

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IPC IPC(8): C10G29/22
Inventor 楚喜丽谭丽沈明欢李本高于丽王振宇
Owner CHINA PETROLEUM & CHEM CORP
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