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Rubber oil with low aromatic hydrocarbon content and preparation method thereof

A technology of low aromatic hydrocarbon and rubber oil, applied in the field of low aromatic hydrocarbon content rubber oil and its preparation, can solve the problems such as the inability to meet the requirements of SBS rubber filler oil, the unreasonable utilization of naphthenic distillate oil, and the lack of naphthenic hydrocarbon content, etc. Achieve the effect of high target product yield, low aromatics content and moderate hydrogenation conditions

Active Publication Date: 2014-06-11
CHINA NAT OFFSHORE OIL CORP +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Traditional lubricating base oil production processes such as solvent refining-solvent dewaxing-hydrogenation or white clay supplementary refining process have been used for many years, but this process is mainly suitable for paraffinic or intermediate base crude oil with more wax content. The base oil produced The color is darker and the impurity content is high, which cannot meet the requirements of SBS rubber filling oil
Chinese patent application CN1352233A uses solvent-refined hydrocarbon oil as a raw material, and produces white oil that meets food-grade standards through the hydrotreating-hydrofining-isomerization dewaxing-hydrogenation supplementary refining process. This process must adopt Expensive precious metal catalysts, and at least two sets of completely independent high-pressure hydrogenation units, are not suitable for raw materials with low wax content, and the content of this patent application does not involve the content of naphthenes in the product
[0005] In summary, when using the existing technology to produce SBS rubber oil, there are problems such as large investment, low content of naphthenes in the target product, and poor solvency, and naphthenic distillates have not been rationally utilized

Method used

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  • Rubber oil with low aromatic hydrocarbon content and preparation method thereof
  • Rubber oil with low aromatic hydrocarbon content and preparation method thereof
  • Rubber oil with low aromatic hydrocarbon content and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] The preparation of embodiment 1, SBS rubber oil

[0031] (1) With the Caofeidian crude oil minus the second-line distillate oil produced by the industrial plant of CNOOC Zhanjiang Fuel Oil Co., Ltd. as raw material (the properties of the raw material oil are shown in Table 1), the test is carried out in the solvent refining device (the total feed amount of raw material oil and solvent is 3kg / h, random packing is placed in the tower, the number of theoretical plates is 3 theoretical plates), the solvent is furfural, the agent-oil weight ratio is 1.6: 1, the temperature at the top of the refining tower is 90°C, and the temperature at the bottom of the tower is 60°C. The bottom product of the tower is the extract liquid. After recovering the solvent, the extract oil is obtained, which is used as the raw material for the production of high-aromatic environmentally friendly rubber oil; the product at the top of the refining tower is the refined liquid, and the refined oil is o...

Embodiment 2

[0035] The preparation of embodiment 2, SBS rubber oil

[0036] (1) Using the third-line naphthenic distillate oil produced by the industrial plant of China Shipping Asphalt Co., Ltd. as raw material (see Table 1 for the properties of the raw material oil), the test was carried out in a small test device for solvent refining (the total feed amount of raw material oil and solvent is 3kg / h, random packing is placed in the tower, and the number of theoretical plates is 3 theoretical plates), the solvent is furfural, the agent-oil weight ratio is 3.2: 1, the temperature at the top of the refining tower is 130°C, and the temperature at the bottom of the tower is 95°C. The bottom product of the refining tower is the extract liquid. After recovering the solvent, the extract oil is obtained, which is used as the raw material for the production of high-aromatic environmental protection rubber oil; ASTM D2140 method testing, C A The value is 1.4%, indicating that the content of aromat...

Embodiment 3

[0039] The preparation of embodiment 3, SBS rubber oil

[0040] The feedstock oil used in this embodiment, solvent refining unit, hydrogenation unit, and each hydrogenation catalyst are all the same as in Example 2, but the solvent refining operating conditions, the loading amount and operating conditions of each catalyst in the reactor in the hydrogenation process are the same as those in Example 2. Example 2 is different, see Table 2 for details; the whole fraction of the obtained hydrogenated oil is distilled, and the fraction greater than 360° C. is used as SBS rubber oil.

[0041] The performance parameters of the rubber oil prepared in this embodiment are shown in Table 2. As can be seen from the data in Table 2, reducing the temperature and the ratio of furfural refining to oil can improve the yield of refined oil, while the aromatics content, sulfur content and The nitrogen content is also increased, and high-quality SBS rubber oil can also be obtained by adjusting the...

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Abstract

The invention discloses rubber oil with low aromatic hydrocarbon content and a preparation method thereof. The method comprises the following steps of: (1) placing naphthenic base distillate oil in a solvent refining tower to perform solvent refining, obtaining refined liquid on the tower top of the solvent refining tower and recovering solvent to obtain refined oil, and obtaining extract at the tower bottom and recovering solvent to obtain extract oil; and (2) performing hydrotreating, hydrodewaxing and hydro-finishing on the refined oil in sequence to obtain hydrogenation full distillate oil, distilling the hydrogenation full distillate oil, and removing light fraction to obtain the rubber oil with low aromatic hydrocarbon content. The rubber oil produced by the invention has extremely low aromatic hydrocarbon content, extremely high naphthenic hydrocarbon content, high solvability, product CN value of greater than 48 percent and even greater than 50 percent and saybolt color of reaching or exceeding +30; and the extract oil refined from the solvent obtained by the preparation method has high aromatic hydrocarbon content and is a high-grade raw material for producing environmentally-friendly rubber oil with high aromatic hydrocarbon content.

Description

technical field [0001] The invention relates to a rubber oil with low aromatic content and a preparation method thereof, belonging to the field of petrochemical industry. Background technique [0002] Thermoplastic elastomer is one of the main varieties of artificial rubber or synthetic rubber. Its characteristic is that the product not only has the excellent properties of traditional cross-linked vulcanized rubber, such as high elasticity, aging resistance, and oil resistance, but also has the characteristics of easy processing of ordinary plastics. It can be produced by injection molding, extrusion, blow molding and other processing methods, which not only simplifies the processing process, but also reduces processing costs. It has become one of the new materials to replace traditional rubber. [0003] Styrene-based thermoplastic elastomers are the most productive and most diverse type of thermoplastic elastomer materials. They are polymerized from styrene and butadiene. A...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G67/14C08K5/01C08L53/02
Inventor 杨文中蔡烈奎马莉莉张海洪张翠侦
Owner CHINA NAT OFFSHORE OIL CORP
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