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Hydrogenation process for FCC recycle oil

A technology of re-refined oil and catalyst, which is applied in the field of combined hydrogenation process of catalytic re-refined oil by hydrogenation treatment-hydrogenation upgrading-hydrogenation supplementary refining, which can solve the problems of limited resources of naphthenic distillate oil and low energy consumption. Achieve the effects of excellent oxidation stability, guaranteed product yield, and excellent rubber miscibility

Active Publication Date: 2015-05-06
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method has low energy consumption and good product quality, but there is a problem of limited resources of naphthenic distillate oil

Method used

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  • Hydrogenation process for FCC recycle oil

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preparation example Construction

[0029] 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.

[0030] The preparation method of amorphous silicon aluminum used comprises the steps:

[0031] a. Prepare sodium aluminate solution and sodium silicate solution;

[0032] 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;

[0033] c. Under the controlled temperature and pH value of step b, t...

Embodiment 1

[0048] 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

[0050] 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 hydrogenation process for FCC recycle oil. The method comprises the following steps that: after mixing of FCC recycle oil with hydrogen, the obtained mixture enters a hydro-treating reaction zone and sequentially contacts with a hydro-protecting catalyst, a hydrofining catalyst and a hydro-upgrading catalyst A for hydrogenation reaction; the effluent obtained after hydro-treatment enters a hydro-upgrading reaction zone where a hydro-upgrading catalyst B containing amorphous silicon aluminum and modified Y zeolite is used, and undergoes hydro-upgrading reaction in the presence of hydrogen; and the effluent obtained after hydro-upgrading enters a hydro-finishing reaction zone and undergoes hydro-finishing reaction, and hydro-finishing products are separated so as to obtain transformer oil. The hydrogenation processing method for FCC recycle oil provided by the invention uses FCC recycle oil as a raw material to produce transformer oil, so raw material sources of transformer oil products can be broadened and special oil products meeting higher quality requirements can be produced.

Description

technical field [0001] The invention relates to a production method of a special oil product, in particular to a combined hydrogenation process method of hydrogenation treatment-hydrogenation upgrading-hydrogenation supplementary refining for catalytic back-refining oil. Background technique [0002] Catalytic cracking (FCC) process is one of the important means of lightening heavy oil. FCC heavy oil refers to catalytic cracking re-refined oil, re-refined oil slurry or dumped oil slurry, and its main components are aromatic hydrocarbons and easily cracked saturated hydrocarbons. A large number of industrial practices and research work have shown that the existing catalytic cracking unit adopts full back refining operation, and the back refining oil contains relatively high heavy aromatics, resulting in an increase in the amount of coke and a decrease in the treatment capacity of the unit. [0003] As a secondary processing product, the refined oil contains a large amount of ...

Claims

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Application Information

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IPC IPC(8): C10G65/02
CPCC10G65/02
Inventor 孙国权全辉姚春雷赵威张志银林振发
Owner CHINA PETROLEUM & CHEM CORP
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