Blending-process method for producing environment-friendly rubber oil

An environmentally friendly rubber oil and production method technology, applied in the direction of only multi-stage serial refining process, etc., can solve the problems of high price, dependence on imports, and difficult supply guarantee, and achieve low product cost, low raw material cost, and mild operating conditions Effect

Active Publication Date: 2012-01-25
CHINA NAT OFFSHORE OIL CORP +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, at present, such products mainly rely on imports, which are expensive and difficult to guarantee supply

Method used

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  • Blending-process method for producing environment-friendly rubber oil
  • Blending-process method for producing environment-friendly rubber oil
  • Blending-process method for producing environment-friendly rubber oil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Embodiment 1, preparation and property determination of environment-friendly rubber oil

[0029] 1) Using Zhonghai Suizhong 36-1 vacuum residue as raw material, extract it in the first extraction tower to obtain deasphalted oil; the extraction conditions are: the temperature at the top of the tower is 91°C, the temperature at the bottom of the tower is 80°C, The solvent is propane, the volume ratio of solvent and Zhonghaisuizhong 36-1 vacuum residue is 8:1, and the operating pressure is 3.8Mpa.

[0030] 2) The deasphalted oil obtained in step 1) is subjected to secondary extraction in the second extraction tower to obtain light deasphalted oil and heavy deasphalted oil; the extraction conditions are: the temperature at the top of the tower is 80 ° C, the tower The bottom temperature is 70°C, the solvent is propane, the volume ratio of solvent and deasphalted oil is 6:1, and the operating pressure is 2.8Mpa.

[0031] 3) The heavy deasphalted oil and naphthenic oil obtai...

Embodiment 2

[0036] Embodiment 2, preparation and property determination of environment-friendly rubber oil

[0037] 1) Using Zhonghai Suizhong 36-1 vacuum residue as raw material, extract it in the first extraction tower to obtain deasphalted oil; the extraction conditions are: the temperature at the top of the tower is 78°C, the temperature at the bottom of the tower is 68°C, The solvent is propane, the volume ratio of solvent and Zhonghaisuizhong 36-1 vacuum residue is 6:1, and the operating pressure is 4.8Mpa.

[0038] 2) The deasphalted oil obtained in step 1) is subjected to secondary extraction in the second extraction tower to obtain light deasphalted oil and heavy deasphalted oil; the extraction conditions are: the temperature at the top of the tower is 70 ° C, the tower The bottom temperature is 60°C, the solvent is propane, the volume ratio of solvent and deasphalted oil is 6:1; the operating pressure is 3.1Mpa.

[0039] 3) The heavy deasphalted oil and naphthenic oil obtained ...

Embodiment 3

[0045] Embodiment 3, the preparation and property determination of environment-friendly rubber oil

[0046] 1) Using Zhonghai Suizhong 36-1 vacuum residue as raw material, extract it in the first extraction tower to obtain deasphalted oil; the extraction conditions are: the temperature at the top of the tower is 70°C, the temperature at the bottom of the tower is 57°C, The solvent is propane, the volume ratio of solvent and Zhonghaisuizhong 36-1 vacuum residue is 8:1, and the operating pressure is 7.0Mpa.

[0047] 2) The deasphalted oil obtained in step 1) is subjected to secondary extraction in the second extraction tower to obtain light deasphalted oil and heavy deasphalted oil; the extraction conditions are: the temperature at the top of the tower is 60 ° C, the tower The bottom temperature is 50°C, the solvent is propane, the volume ratio of the solvent to the deasphalted oil is 8:1, and the operating pressure is 3.9Mpa.

[0048] 3) The heavy deasphalted oil and naphthenic ...

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Abstract

The invention discloses a blending-process method for producing environment-friendly rubber oil. The method provided by the invention comprises the following steps: 1) performing solvent extraction on reduced-pressure residual oil to obtain deasphalted oil, wherein a solvent used for extraction is propane; the volume ratio of the solvent to the reduced-pressure residual oil is (6-8):1; and extraction conditions are tower-top temperature between 70 and 91 DEG C, tower-bottom temperature between 57 and 80 DEG C and pressure between 3.8 and 7.0 MPa; 2) performing solvent extraction on the deasphalted oil obtained in a step 1) to obtain heavy deasphalted oil, wherein the solvent used for extraction is propane; the volume ratio of the solvent to the deasphalted oil is (6-8):1; and the extraction conditions are tower-top temperature between 60and 80 DEG C, tower-bottom temperature between 50 and 70 DEG C and pressure between 2.8 and 3.9 MPa; and 3) mixing the heavy deasphalted oil obtained in a step 2) with naphthenic oil at a temperature between 70 and 90 DEG C for 30 to 120 minutes to obtain the environment-friendly rubber oil, wherein the mass ratio of the heavy deasphalted oil to the naphthenic oil is (0.3-0.7):(0.7-0.3). The environment-friendly rubber oil has the advantage of meeting the requirements of EU 2005 / 69 / EC environment-protecting directives, along with aromatic-carbon rate between 10 and 20 percent, PCA content of less than 3 percent, high aromatic hydrocarbon content, environment-protecting property, no toxicity and no carcinogenic effects. The environment-friendly rubber oil can be used as a substitute for the prior aromatic oil, and has significant economic value.

Description

technical field [0001] The invention relates to a method for producing environment-friendly rubber oil by blending. Background technique [0002] At present, polycyclic aromatic compounds (abbreviated as PCA) have become the organic pollutants concerned by environmental protection and standard organizations all over the world. Aromatic oils widely used in the rubber and tire industries contain a large amount of these substances, which are harmful to the human environment. According to the 2005 / 69 / EC directive signed by the European Union, since January 1, 2010, the use of toxic aromatic oil in tires entering the EU market will be completely prohibited. Both the United States and Japan have also established timetables for restricting the use of aromatic oil in tires and prohibiting the sale of tires using this oil in the region. Therefore, various export tire manufacturers are actively planning to replace aromatic oil with environmentally friendly rubber oil. [0003] Curr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08K11/00C08L21/00C10G53/06
Inventor 付玉娥孙元碧刘维群于恩强商希红
Owner CHINA NAT OFFSHORE OIL CORP
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