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Rubber oil and preparation method thereof

A technology for rubber oil and raw material oil, applied in the petrochemical field, can solve the problems of high total solvent ratio, large solvent consumption, energy consumption and high agent consumption, and achieve the effects of improved solubility, wide application and reduced agent consumption.

Active Publication Date: 2015-01-28
CHINA NAT OFFSHORE OIL CORP +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] When the existing two-stage extraction process produces environmentally friendly rubber oil, there are problems of high total solvent ratio, large solvent consumption, high energy consumption and high agent consumption

Method used

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  • Rubber oil and preparation method thereof
  • Rubber oil and preparation method thereof
  • Rubber oil and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Embodiment 1, the preparation of environment-friendly rubber oil

[0030] (1) Using the second-line reduced naphthenic distillate oil produced by the industrial plant of Zhonghai Bitumen (Taizhou) Co., Ltd. as the raw material (see Table 1 for the properties of the raw material oil), the test was carried out in the twin-tower solvent refining pilot plant. The total feed volume of raw oil and solvent in extraction tower I is 8kg / h, random packing is placed in the tower, and the number of theoretical plates in a single tower is 3 theoretical plates. The solvent of the extraction tower I is a mixture of fresh furfural and secondary extraction liquid. The raw oil enters from the lower part of the extraction tower I after heating, and the solvent enters from the upper part of the extraction tower I after heating. The total mass ratio of solvent to oil is 1.2:1, of which the mass ratio of fresh solvent to raw oil is 0.9:1, and the mass ratio of secondary extraction liquid to...

Embodiment 2

[0033] Embodiment 2, the preparation of environment-friendly rubber oil

[0034] The raw material is the reduced three-line naphthenic distillate oil produced by the industrial plant of China Shipping Asphalt (Taizhou) Co., Ltd. (see Table 1 for the properties of the raw material oil). The preparation method is the same as that of Example 1. The detailed operating conditions and test results are shown in Table 2. ; As can be seen from the data in Table 2, the yield of environmental protection rubber oil relative to distillate oil is 24.1%, C A The value is 24.0%, C N The value is 40.0%, C P The value is 36.0%, the content of polycyclic aromatic hydrocarbons is 2.5%, the content of PAHs is 3.0mg / kg, and the content of benzo[a]pyrene is 0.6mg / kg.

Embodiment 3

[0042] Embodiment 3, the preparation of environment-friendly rubber oil

[0043] The deasphalted oil produced by the industrial plant of CNOOC (Qingdao) Heavy Oil Processing Engineering Technology Research Center Co., Ltd. was used as the raw material (see Table 1 for the properties of the raw material oil). The preparation method was the same as that of Example 1. The detailed operating conditions and test results are shown in Table 2 Shown; As can be seen from the data in Table 2, the yield of environmentally friendly rubber oil relative to distillate oil is 30.8%, C A The value is 25.7%, the content of polycyclic aromatic hydrocarbons is 2.8%, the content of PAHs is 8.1 mg / kg, and the content of benzo[a]pyrene is 0.8 mg / kg.

[0044] From the data of Example 1 to Example 3, it can be seen that no matter for the low-viscosity vacuum distillate oil with a lower boiling point or the high-viscosity deasphalted oil with a very high boiling point, the method of the present inventi...

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Abstract

The invention discloses rubber oil and a preparation method thereof. The preparation method comprises the following steps of (1) carrying out solvent refining on raw material oil in an extraction tower I under the action of a mixed liquor of a fresh solvent and a secondary extracted liquid from an extraction tower II, thereby obtaining a first extracted liquid at the bottom of the extraction tower I, carrying out solvent recovery to obtain first extracted oil and obtain a first refining liquid on the top of the tower; and (2) carrying out solvent refining on the first refining liquid entering the extraction tower II under the action of the fresh solvent, thereby obtaining a secondary refining liquid on the top of the extraction tower II, carrying out solvent recovery to obtain secondary refining oil and obtain the secondary extracted liquid at the bottom of the extraction tower II. According to the method, part of the secondary extracted liquid circulates and is taken as the solvent of the extraction tower I, the usage amount of the fresh solvent is obviously reduced, furthermore, the energy consumption and agent consumption of a device are obviously lowered, and the capacity of the solvent of the extraction tower I in dissolving polycyclic aromatic hydrocarbon is remarkably improved.

Description

technical field [0001] The invention relates to a rubber oil and a preparation method thereof, belonging to the field of petrochemical industry. Background technique [0002] Oils used in rubber synthesis or rubber processing are collectively referred to as rubber oil. As an important additive, rubber oil is widely used in the rubber industry. After the rubber is filled with oil, the processability and use performance are improved, while the output of rubber is increased and the cost is reduced. In recent years, the domestic tire industry has developed rapidly. China is a big tire manufacturing country, and tire oil has become the largest application field of rubber oil. More than one-third of domestic tires are exported overseas. [0003] The harm of traditional high-aromatic rubber oil to human health and the pollution to the environment have attracted great attention from governments and researchers in various countries. Western developed countries such as Europe and th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G53/06C08K5/01
Inventor 杨文中蔡烈奎马莉莉张卉宋君辉王凯曹逸飞张海洪
Owner CHINA NAT OFFSHORE OIL CORP