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A kind of preparation method of environment-friendly rubber filling oil

A rubber-filled oil, environmentally friendly technology, used in the petroleum industry, processing hydrocarbon oil, refining hydrocarbon oil, etc., can solve problems such as poisoning, environmental protection, and no environmental protection treatment of polycyclic aromatic hydrocarbon oil, etc., to improve resource utilization, The effect of superior processing performance and high aromatic content

Active Publication Date: 2018-09-07
SINOPEC YANGZI PETROCHEM +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Among the above-mentioned prior arts, none of them involves the environmental protection treatment of the extracted polycyclic aromatic oil, and this part of the oil is more harmful to the environment than the high aromatic oil before extraction due to the enrichment of polycyclic aromatic hydrocarbons. , if this part of PAH oil cannot be treated in an environmentally friendly manner, the production process of TDAE will not be environmentally friendly
Although traditional treatment methods can be adopted for this part of PAH oil, such as transferring it to high-aromatic oil as a product output or entering a coking unit to generate coke, none of them can further increase the value, and there are environmental problems

Method used

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  • A kind of preparation method of environment-friendly rubber filling oil

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Using high aromatic oil with an aromatic content of 70wt% as a raw material, solvent extraction is carried out, and the product obtained at the top of the extraction tower is recovered from the solvent to obtain an environmentally friendly rubber filler oil, and the product obtained at the bottom of the extraction tower is recovered from the solvent to obtain Extract oil; carry out hydrogenation treatment on the extracted oil to obtain hydrotreated oil, remove a small amount of dissolved hydrogen sulfide, ammonia and other light components in the hydrotreated oil by air stripping, then mix the hydrotreated oil with high aromatic oil and return To the extraction tower for solvent extraction, and so on.

[0023] The solvent for solvent extraction is dimethyl sulfoxide, the extraction stage is 3, the temperature is 90°C, and the mass ratio of solvent to aromatic oil is 3:1.

[0024] The process conditions of hydrotreating are: temperature 350°C, volume fraction ratio of hy...

Embodiment 2

[0027] Using high aromatic oil with an aromatic content of 80wt% as a raw material, solvent extraction is carried out, and the product obtained at the top of the extraction tower is recovered from the solvent to obtain an environmentally friendly rubber filler oil, and the product obtained at the bottom of the extraction tower is recovered from the solvent to obtain Extract oil; carry out hydrogenation treatment on the extracted oil to obtain hydrotreated oil, remove a small amount of dissolved hydrogen sulfide, ammonia and other light components in the hydrotreated oil by air stripping, then mix the hydrotreated oil with high aromatic oil and return To the extraction tower for solvent extraction, and so on.

[0028] The solvent for solvent extraction is N-formylmorpholine, the extraction stage is 3, the temperature is 110°C, and the mass ratio of solvent to aromatic oil is 4:1.

[0029] The process conditions of hydrotreating are: temperature 300°C, volume fraction ratio of h...

Embodiment 3

[0032] Using high aromatic oil with an aromatic content of 90wt% as a raw material, solvent extraction is carried out, and the product obtained at the top of the extraction tower is recovered from the solvent to obtain an environmentally friendly rubber filler oil, and the product obtained at the bottom of the extraction tower is recovered from the solvent to obtain Extract oil; carry out hydrogenation treatment on the extracted oil to obtain hydrotreated oil, remove a small amount of dissolved hydrogen sulfide, ammonia and other light components in the hydrotreated oil by air stripping, then mix the hydrotreated oil with high aromatic oil and return To the extraction tower for solvent extraction, and so on.

[0033] The solvent for solvent extraction is furfural, the extraction stage is 3, the temperature is 80°C, and the mass ratio of solvent to aromatic oil is 1.5:1.

[0034] The process conditions of hydrotreating are: temperature 370°C, volume fraction ratio of hydrogen t...

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Abstract

The invention relates to a preparation method of environment-friendly rubber filling oil, which comprises the following steps: performing solvent extraction to high-aromatic oil in an extraction column, and recovering solvent from a product obtained in the top of the extraction column to prepare the environment-friendly rubber filling oil, and recovering solvent from a product obtained in the bottom of the extraction column to obtain extract oil; and (B) hydrogenating the extract oil to obtain hydrogenated treated oil, and feeding the hydrogenated treated oil back so as to mix the hydrogenated treated oil with the high-aromatic oil to perform the solvent extraction again, and repeating the steps in the manner hereinabove. By means of the method, the rubber filling oil has high aromatic hydrocarbon content and excellent compatibility with rubber, and has high processability, so that when being used in production process of tires, the rubber filling oil enables the tires to have excellent anti-slippery performance and the like. In the environment-friendly rubber filling oil, the content of polycyclic aromatic hydrocarbon compounds satisfies export European Union standard. The rubber filling oil is toxic-free and has no cancer causing effect, wherein the high-aromatic oil are all converted into the rubber filling oil, thus improving resource utilization rate and actually achieving green and environment protection in the whole process.

Description

technical field [0001] The invention relates to a method for preparing environment-friendly rubber filler oil, which is especially suitable for the process of preparing environment-friendly rubber filler oil by hydrogenation of high aromatic oil. Background technique [0002] Since 2010, the use of aromatic oils with excessive polycyclic aromatic hydrocarbons has been completely banned in tires entering the EU market. The United States and Japan have also successively formulated timetables for restricting the use of aromatic oil in tires and prohibiting the sale of tires using this oil in the region. This has led to the fact that some tires exported abroad must use environmentally friendly rubber oil to survive in the market. Therefore, various tire export companies have a huge market demand for environmentally friendly rubber oil. Due to the high price of such products abroad and the difficulty in guaranteeing the supply, domestic research in this area has invested a lot o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G67/04C10G21/16C10G21/20
Inventor 徐骏廉勇
Owner SINOPEC YANGZI PETROCHEM
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