Unlock instant, AI-driven research and patent intelligence for your innovation.

A kind of method of producing aromatic type rubber extender oil

A technology for rubber filler oil and aromatic hydrocarbons, which is applied in the treatment of hydrocarbon oil, petroleum industry, hydrogenation process, etc. It can solve the problems of poor stability and affecting performance, etc., and achieve the effect of simple method

Active Publication Date: 2018-06-19
CHINA PETROLEUM & CHEM CORP +1
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] To further develop the utilization of coking wax oil, the technology of producing high value-added chemical oil needs to be further vigorously developed. However, coking wax oil is a delayed coking process of low-quality raw materials such as vacuum heavy oil, asphalt, coal tar or their mixtures. The obtained heavy thermal cracking components have high aromatic content, but poor stability, inferior to general wax oil components, and contain a large amount of impurity elements such as sulfur and nitrogen, which affect their performance. Using channels to produce high value-added chemical oils, such as rubber filler oils, etc., it is necessary to study new processing methods in order to solve the shortcomings that affect the performance and meet the use requirements.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] The present embodiment adopts following steps to carry out:

[0058] (1) The coker wax oil is introduced into a low-temperature system for condensation crystallization, the adopted crystallization temperature is -5°C, and the solvent used is a mixed solution of toluene and butanone, wherein the volume ratio of toluene and butanone is 45 :55. After the crystallization is completed, filter and separate to obtain a filtrate, and recover the solvent from the filtrate to obtain a dewaxed hydrocarbon oil with a freezing point lower than 25°C.

[0059] (2) In the presence of hydrogen, the dewaxed hydrocarbon oil is introduced into the hydrofinishing zone for hydrofinishing treatment, wherein the catalyst loaded in the hydrofinishing zone is successively RG-20 hydrogenation protection catalyst (loaded volume Accounting for 20% of the total volume of the two) and RJW-3 catalyst, the pressure of the hydrorefining zone is 6.0MPa, the reaction temperature is 345°C, and the volume ...

Embodiment 2

[0064] The present embodiment adopts following steps to carry out:

[0065] (1) The coker wax oil is introduced into a low temperature system for condensation crystallization, the adopted crystallization temperature is 5°C, and the solvent used is a mixed solution of toluene and butanone, wherein the volume ratio of toluene and butanone is 50: 50. After the crystallization is completed, filter and separate to obtain a filtrate, and recover the solvent from the filtrate to obtain a dewaxed hydrocarbon oil with a freezing point lower than 25°C.

[0066] (2) In the presence of hydrogen, the dewaxed hydrocarbon oil is introduced into the hydrofinishing zone for hydrofinishing treatment, wherein the catalyst loaded in the hydrofinishing zone is successively RG-20A hydrogenation protection catalyst (loaded volume Accounting for 15% of the total volume of the two) and RJW-3 catalyst, the pressure of the hydrofinishing zone is 8.0MPa, the reaction temperature is 360°C, and the volume...

Embodiment 3

[0071] The present embodiment adopts following steps to carry out:

[0072] (1) The coker wax oil is introduced into a low-temperature system for condensation crystallization, the adopted crystallization temperature is 10° C., and the solvent used is a mixed solution of toluene and butanone, wherein the volume ratio of toluene and butanone is 40: 60. After the crystallization is completed, filter and separate to obtain a filtrate, and recover the solvent from the filtrate to obtain a dewaxed hydrocarbon oil with a freezing point lower than 25°C.

[0073] (2) In the presence of hydrogen, the dewaxed hydrocarbon oil is introduced into the hydrofinishing zone for hydrofinishing treatment, wherein the catalyst loaded in the hydrofinishing zone is successively RG-20B hydrogenation protection catalyst (loaded volume Accounting for 30% of the total volume of the two) and RL-2 catalyst, the pressure of the hydrofinishing zone is 4.5MPa, the reaction temperature is 290°C, and the volu...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
freezing pointaaaaaaaaaa
flash pointaaaaaaaaaa
diameteraaaaaaaaaa
Login to View More

Abstract

The invention discloses a method for producing aromatic hydrocarbon rubber extension oil. The method comprises: (1) condensing and crystallizing coker wax oil with a distillation range of 350-560°C to obtain dewaxed hydrocarbon oil with a freezing point lower than 25°C; (2) In the presence of hydrogen, the dewaxed hydrocarbon oil is contacted with a hydrorefining catalyst. By adopting the above method, the present invention can utilize low-quality coker wax oil to produce aromatic hydrocarbon type rubber filler oil for chemical industry with high added value and high aromatic content. Moreover, the above-mentioned method of the present invention has the advantage of being simple.

Description

technical field [0001] The invention relates to a method for producing aromatic hydrocarbon rubber extension oil. Background technique [0002] Coking gas oil is a liquid fraction obtained by processing heavy raw materials such as vacuum residue oil or deoiled asphalt by thermal cracking in the delayed coking process unit during petroleum processing. Coking gas oil includes atmospheric gas oil and vacuum gas oil, both of which are products obtained by thermal cracking reaction of inferior raw materials, which contain a large amount of nitrogen compounds, sulfide compounds and polycyclic aromatic hydrocarbons. These components are likely to lead to increased carbon deposition on the catalyst in the existing commonly used processing processes such as catalytic cracking and hydrocracking, thereby deactivating the catalyst, affecting the operating cycle of the hydrocracking unit or deteriorating the product distribution of the catalytic cracking unit. At present, coking wax oil...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C10G67/02C10G67/14
Inventor 郭庆洲王鲁强李洪宝夏国富高晓冬聂红
Owner CHINA PETROLEUM & CHEM CORP