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Heavy metal removing agent for crude oil

A technology for heavy metals and removing agents, which is applied in the petroleum industry, refining hydrocarbon oil, etc., can solve the problems of difficult separation of metal compounds, difficult to realize industrialization, and increase in the amount of extractants, so as to solve the harm of heavy metals such as nickel and vanadium. , easy to separate, simple to use the effect of the process

Active Publication Date: 2008-07-09
金浦新材料股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existence of the above-mentioned demetallization agents is not easy to remove organic metals in crude oil, such as porphyrin nickel, porphyrin vanadium, etc., and the resulting metal compounds are not easy to separate. When the dosage is increased, sometimes the oil-to-agent ratio reaches above 0.9, which makes it difficult to realize industrialization

Method used

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  • Heavy metal removing agent for crude oil
  • Heavy metal removing agent for crude oil
  • Heavy metal removing agent for crude oil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-7

[0020] Embodiment 1-7: prepare heavy metal removing agent by following weight ratio:

Embodiment 1

[0021] Example 1 Ethylene carbonate 40%, polyoxypropylene polyoxyethylene ether 20%, polyoxyethylene ether glycerin phosphate 10%, thiourea 1%, alcohol water 9% (methanol: water = 1: 4)

Embodiment 2

[0022] Example 2 Ethylene carbonate 30%, polyoxypropylene polyoxyethylene ether 20%, polymaleic acid 15%, thiourea 1%, glycolic acid 25%, alcoholic water 9% (methanol: water=1: 4)

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Abstract

The invention relates to base oil heavy metal removing agent which removes metallic elements such as nickel, vanadium and the like from base oil and is mainly applied in oil refining electric desalting devices. The invention is characterized in that the removing agent components and the weight percentage of each component are that: carbonic ester 10-40%, organic acids 0-30%, non-ionic surfactant 5-20%, chelator 10-45%, urea compounds 0.5-1% and alcohol water 2-10%. The invention is not soluble in oil, the specific density is bigger than that of the base oil, the removing agent is easy to be separated, porphyrin compounds of the nickel and the vanadium and other metallic ions in the base oil can be removed without changing operational parameters of the electric desalination, wherein the removal rate of the nickel and the vanadium can reach about 60%, which effectively protects catalyst in the following working procedure.

Description

technical field [0001] The invention relates to a crude oil heavy metal remover for removing metal elements such as calcium, magnesium, iron, nickel and vanadium from crude oil. Background technique [0002] With the development of oil extraction technology, a large amount of heavy oil has been extracted. The metal ions contained in these crude oils, such as nickel, vanadium, magnesium, iron, calcium and other metal elements, among which nickel and vanadium exist as porphyrin compounds, its The boiling point is very high, easily soluble in oil phase, insoluble in water, the current electric desalination device can only remove water-soluble inorganic salts and a small amount of organic calcium and magnesium salts, while vanadium porphyrin and nickel porphyrin basically cannot remove remove. Vanadium and nickel porphyrin compounds decompose at about 500°C and deposit on the FCC catalyst, where nickel will promote the dehydrogenation reaction, resulting in the formation of cok...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G29/22
Inventor 王鹏翔葛圣才季亚军王海英
Owner 金浦新材料股份有限公司
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