A method for producing high specific gravity aviation kerosene by catalyzing oil refining hydrogenation

A technology for aviation kerosene and re-refining, which is applied in the fields of hydrogenation treatment process, petroleum industry, and hydrocarbon oil treatment, etc. It can solve the problems of no good use, increased coke generation rate, environmental pollution, etc., and achieves small viscosity drop and open loop The effect of low activity and high calorific value

Active Publication Date: 2017-03-22
CHINA PETROLEUM & CHEM CORP +1
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

However, the recycled oil is rich in condensed cyclic hydrocarbons, which are difficult to be cracked. When accumulated in the device, the coke formation rate will be greatly increased, and part of it needs to be dumped. The recycled recycled oil is not very useful because of its high content of sulfur, nitrogen, aromatics, and olefins. , can only be blended in a certain proportion into the feed of other hydrogenation processes or burned as fuel oil, which not only wastes resources, but also causes environmental pollution

Method used

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  • A method for producing high specific gravity aviation kerosene by catalyzing oil refining hydrogenation
  • A method for producing high specific gravity aviation kerosene by catalyzing oil refining hydrogenation
  • A method for producing high specific gravity aviation kerosene by catalyzing oil refining hydrogenation

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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. T...

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 present invention discloses a method for producing aviation kerosene by catalytic recycle oil hydrogenation. The method includes the following steps: mixing catalytic recycle oil with hydrogen, sending the mixture into a hydrogenation reaction zone; conducting hydrogenation in turn with a hydrogenation protective catalyst, a hydrofining catalyst and a hydro-upgrading catalyst A by contact; sending the hydrotreating effluent into a hydro-upgrading reaction zone using a hydro-upgrading catalyst B containing amorphous silica-alumina and modified Y zeolite, and carrying out a hydrogenation reforming reaction in the presence of hydrogen; sending the hydro-upgrading effluents into a hydrofinishing reaction zone, carrying out a hydrofinishing reaction and isolating hydrofinishing products to obtain the aviation kerosene with large proportion. The method uses catalytic recycle oil as raw material to produce the aviation kerosene with large proportion, high density, high volume calorific value, low aromatic content and good low temperature performance in the maximum amount, and can broaden the sources of raw materials for aviation kerosene products with large proportion.

Description

technical field [0001] The present invention relates to a production method of high specific gravity aviation kerosene, specifically a kind of production method of high specific gravity aviation kerosene by adopting hydrogenation treatment-hydrogenation upgrading-hydrogenation supplementary refining one-stage serial hydrogenation method using catalytic re-refined oil as raw material Kerosene method. Background technique [0002] With the rapid development of aviation science, the flight speed of the aircraft has increased from the subsonic speed in the 1950s to the current Mach number M of 2-3, which puts forward higher and higher requirements for the thermal stability of the fuel. The requirement for voyage is to be able to load fuel with higher energy density under the same fuel tank volume conditions. These two requirements have led to the desire for aviation kerosene with a high specific gravity. Because high specific gravity kerosene has high volumetric energy characte...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G65/04
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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