A kind of method for producing rubber extended oil base oil from medium and low temperature coal tar

A low-temperature coal tar and rubber extension oil technology, which is applied in the petroleum industry, hydrocarbon oil treatment, hydrogenation process, etc., can solve the problems of inability to stabilize resources of rubber extension oil, poor quality, and reduced output, and achieve rubber miscibility Excellent oxidation stability, low product viscosity drop, and low ring-opening activity

Active Publication Date: 2016-03-30
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, Liaohe Huanxiling crude oil can no longer be used as a stable resource for the production of rubber filler oil due to the decrease in output and deterioration in quality

Method used

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  • A kind of method for producing rubber extended oil base oil from medium and low temperature coal tar

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preparation example Construction

[0033] The preparation process of the hydrogenation modification catalyst of the present invention comprises: after uniformly mixing the amorphous silica-alumina and the modified Y zeolite, adding a binder, kneading, rolling into agglomerates, extruding on an extruder to obtain a carrier, Reload the hydrogenation active metal.

[0034] The preparation method of amorphous silicon aluminum used comprises the steps:

[0035] a. Prepare sodium aluminate solution and sodium silicate solution;

[0036] b. Add the sodium aluminate solution and the sodium silicate solution into the gel forming tank concurrently, and ventilate and feed CO at the same time 2 gas, adjust sodium aluminate solution, sodium silicate solution and CO 2 Flow rate, control the pH value of the material in the gel tank to 9-11, control the neutralization reaction temperature to 20-50°C, and the neutralization reaction time to 0.5-1.5 hours;

[0037] c. Under the controlled temperature and pH value of step b, t...

Embodiment 1

[0054] Prepare 700 solid sodium aluminate to a concentration of 200gAl 2 o 3 / L concentrated sodium aluminate solution, then diluted to a concentration of 35gAl 2 o 3 / L sodium aluminate working solution (a), take SiO 2 28wt% sodium silicate solution, then diluted to a concentration of 150gSiO 2 / L sodium silicate working solution 2L (b). Take a 30L steel plastic tank, open the container valves containing (a) and (b) respectively, and ventilate and feed CO with a concentration of 45v% at the same time 2 Gas, set the flow rate of (a) and (b) so that the reaction time is 1 hour, and quickly adjust the CO 2 flow rate, keep the pH of the system at about 10.0, and the reaction temperature is 30°C. After the reaction of (a) and (b) is completed, stop feeding CO 2 , and then the ventilation was stable for 40 minutes, and the slurry was filtered and washed with 85°C deionized water until neutral. Dry at 120°C for 8 hours, crush and sieve to obtain amorphous silica-alumina GL. ...

Embodiment 2

[0056] Get 80g silicon aluminum GL, 30g modified Y zeolite (SiO 2 / Al 2 o 3 40, unit cell constant 2.432nm, infrared acidity 0.19mmol / g specific surface 866m 2 / g, pore volume 0.52ml / g) and 250g adhesive made by peptizing nitric acid and SB alumina, kneading, rolling, making extrudable paste, extruding into strips. Carrier A was obtained by drying at 110°C for 6 hours and calcining at 550°C for 4 hours. Then 80 g of A was impregnated with 200 ml of a Mo-Mi co-impregnation solution in excess for 2 hours, dried at 110° C. for 6 hours, and calcined at 500° C. for 4 hours to obtain hydrogenation upgrading catalyst A. The physical properties of the hydrogenation upgrading catalyst are shown in Table 2.

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Abstract

The invention discloses a production method of a base oil of a rubber filling oil from medium and low temperature coal tars by hydrogenation. The method includes performing fractionation of the medium and low temperature coal tars to obtain a light fraction and a heavy fraction, mixing the light fraction with hydrogen gas and feeding into a hydrogenation treating reaction zone, and contacting with a hydrogenation protective catalyst, a hydrofining catalyst and a hydrogenation modification catalyst A in sequence for performing hydrogenation reaction; separating the hydrogenation treating effluent, separating out gas and water, and allowing a liquid phase product to enter a hydrogenation modification reaction zone; carrying out hydrogenation modification reaction in presence of hydrogen gas in the hydrogenation modification reaction zone provided with a hydrogenation modification catalyst B containing amorphous silica-alumina and modified Y zeolite; and feeding the hydrogenation modification effluent into a hydrofinishing reaction zone, carrying out hydrofinishing reaction, and separating the hydrofinishing product to obtain the rubber filling oil base oil. The inventive method can produce white rubber filling oil base oil with good low-temperature fluidity, intersolubility with rubber and oxidation stability by using medium and low temperature coal tars as raw materials.

Description

technical field [0001] The present invention relates to a production method of rubber extension oil base oil, specifically a kind of middle and low temperature coal tar adopts hydrogenation treatment-hydrogenation modification-hydrogenation supplementary refining combined hydrogenation process to produce white rubber extension oil base oil Methods. Background technique [0002] Naphthenic crude oil to produce rubber extension oil: In order to improve some properties of rubber, mineral oil needs to be filled into synthetic rubber, so it is called rubber extension oil. In synthetic rubber, the rubber chain structure usually contains benzene ring structure. According to the principle of similarity and mutual solubility, aromatic oil should be the ideal rubber oil, followed by naphthenic oil. However, because aromatic oil is a highly toxic substance, as people's calls for health, safety, and environmental protection are increasing day by day, and some high-end products such as ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G67/00
Inventor 赵威全辉姚春雷张志银孙国权林振发
Owner CHINA PETROLEUM & CHEM CORP
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