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A kind of production method of environment-friendly aromatic hydrocarbon oil

A production method and aromatic oil technology, which is applied in the production field of environmentally friendly aromatic oil, can solve the problems of affecting the service life of catalysts and increasing the difficulty of hydrogenation treatment, and achieve the effects of strong raw material adaptability, reduced loss of aromatics, and saving operating costs

Active Publication Date: 2016-01-20
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage is that the content of polycyclic aromatic hydrocarbons, asphaltenes, and colloids in the extracted oil after solvent extraction is greatly increased, which increases the difficulty of hydrogenation treatment and also affects the service life of the catalyst

Method used

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  • A kind of production method of environment-friendly aromatic hydrocarbon oil

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preparation example Construction

[0024] The hydro-upgrading catalyst used in the present invention can be a commercial catalyst in the prior art, or can be prepared according to the prior art in the field. For example, the method of the present invention provides a method for preparing a hydro-upgrading catalyst, which includes: mixing amorphous silica-alumina and modified Y zeolite uniformly, adding a binder, kneading, rolling into a mass, and extruding on an extruder The carrier is obtained by forming the strip, and the hydrogenation active metal is loaded.

[0025] The amorphous silicon aluminum used can be prepared by an existing method. For example, a specific preparation method includes the following steps:

[0026] a. Prepare sodium aluminate solution and sodium silicate solution;

[0027] b. Add the sodium aluminate solution and the sodium silicate solution into the gelling tank in parallel while ventilating and introducing CO 2 Gas, adjust sodium aluminate solution, sodium silicate solution and CO 2 Flow r...

Embodiment 1

[0045] Prepare 700g solid sodium aluminate to a concentration of 200g Al 2 O 3 / L concentrated sodium aluminate solution, then diluted to a concentration of 35gAl 2 O 3 / L Sodium aluminate working solution (a), which contains 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 to make a rubber tank, and open the valves of the containers containing the working solution (a) and (b) at the same time, and at the same time ventilate and pass in CO with a concentration of 45v% 2 Gas, set the flow of (a) and (b) to make the reaction time within 1 hour, and quickly adjust CO 2 The flow rate of the system keeps the pH value of the system at about 10.0 and the reaction temperature is 30°C. After the reaction of (a) and (b), stop the introduction of CO 2 , Then ventilate and stabilize for 40 minutes, filter the slurry and wash with 85°C deionized water until it is neutral. It was dried at 120°C for 8...

Embodiment 2

[0047] Take 100g of silicon aluminum GL, 45g of modified Y zeolite (SiO 2 / Al 2 O 3 Is 40, unit cell constant is 2.432nm, infrared acidity is 0.19mmol / g, specific surface is 866m 2 / g, pore volume 0.52mL / g, strong acid accounts for 65% of the total acid at 250-550℃, 4-15nm secondary pores account for 46% of the total pore volume) and 310g is made by peptizing nitric acid and SB alumina The adhesive is mixed, kneaded and rolled to make a paste that can be extruded and formed into extruded strips. It was dried at 110°C for 6 hours and calcined at 550°C for 4 hours to obtain carrier A. Then 200 mL of Mo-Mi co-impregnation solution was used to over-immerse 80 g of carrier A for 2 hours, dried at 110°C for 6 hours, and calcined at 500°C for 4 hours to prepare the hydro-upgrading catalyst catA. The physical properties of the hydro-upgrading catalyst are shown in Table 2.

[0048] Table 2 Physicochemical properties of hydrogenation upgrading catalyst

[0049] Catalyst number catA M...

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Abstract

The invention discloses a production method of environmentally friendly aromatic hydrocarbon oil. Vacuum distillate oil, light deasphalted oil and other furfural extract oil are used as a raw material for production of the environmentally friendly aromatic hydrocarbon oil meeting EU (European Union) standards for tires by means of a solvent extraction-hydrotreating combination process. The method is as follows: raw material oil is simply extracted by a solvent to partly remove condensed-nuclei aromatics, colloid, asphaltene and heavy metals in the raw material, a solvent in raffinate oil is extracted, then the condensed-nuclei aromatics which are not extracted out can be further saturated by mild hydrogenation, the condensed-nuclei aromatic content is less than 3.0%, the aromatic hydrocarbon content is greater than 20%, and the excellent environmentally friendly aromatic hydrocarbon oil can be obtained.

Description

Technical field [0001] The invention relates to a method for producing environmentally friendly aromatic oil, in particular to a method for producing environmentally friendly aromatic oil by adopting a solvent extraction-hydrogenation combined process. Background technique [0002] Rubber extender oil plays a very important role in the rubber industry as an auxiliary agent. It can improve the plasticity of the rubber, reduce the viscosity of the rubber and the temperature during mixing, and can promote the dispersion and mixing of other compounding agents. Extrusion has a lubricating effect, and can reduce the hardness of vulcanized rubber and improve its performance. Rubber extender oil can also increase rubber output, reduce costs, and improve rubber processing performance and use performance. It has an important position in the rubber processing industry. [0003] As a rubber extender oil with the largest amount and a wide range of uses, aromatic oil (DAE) has good compatibilit...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G67/04
Inventor 张志银全辉赵威孙国权林振发
Owner CHINA PETROLEUM & CHEM CORP
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