Aviation kerosene fraction hydroupgrading process

A technology of hydrogenation upgrading and jet fuel, which is applied in refining to remove heteroatoms, etc., can solve the problems of no active metal coordination effect, poor interaction catalyst strength, and inability to solve corrosion problems, etc., to reduce construction investment and operating costs, reducing reaction pressure, and reducing the effect of operating temperature

Active Publication Date: 2007-12-19
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the high metal content of the catalyst prepared by this method, there is often a lack of sufficient interaction between the metal and alumina, resulting in poor catalyst strength
The active component is composed of a large amount of metals, and some internal metal components cannot be fully utilized during the formation of Ni-Mo or Ni-Mo-W powder, resulting in the loss of active components, which cannot be solved by simple bonding
CN1342102A discloses a mixed metal catalyst, which is obtained by co-precipitating three active metals. Its main disadvantage is that no coordination effect between different active metals has been found
CN03126437.9 A method for removing aromatics in kerosene, but it cannot solve the corrosion problem, and also reduces the yield of jet fuel

Method used

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  • Aviation kerosene fraction hydroupgrading process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Add 1000mL of water into the reaction tank, then add 40g of nickel chloride to dissolve, then add 52g of ammonium metatungstate to dissolve, then add 5g of zirconium oxychloride to dissolve, then add 10% ammonia water to form a gel until the pH value is 8, and then gel The temperature is 50°C, aging for 1 hour after forming the gel, and then filtering, adding 600ml of clean water, 16g of molybdenum trioxide and 32g of aluminum hydroxide to the filter cake, beating and stirring evenly, filtering, drying the filter cake at 80°C for 5 hours, and then extruding Molded, washed 3 times with clean water, dried at 120°C for 5 hours, and calcined at 500°C for 4 hours to obtain the final catalyst A. The composition and main properties are shown in Table 1.

Embodiment 2

[0033] According to the method of Example 1, according to the component content ratio of catalyst B in Table 1, add aluminum chloride, nickel chloride, sodium tungstate in the reaction tank, then add 16% ammonia water to form a gel, until the pH value is 9 , the gelling temperature is 80°C, aging for 3 hours after gelling, then filtering, washing the filter cake twice with 500mL clean water, adding clean water and molybdenum trioxide, beating and stirring evenly, filtering, and drying the filter cake at 70°C for 7 hours , and then extruded, washed twice with clean water, dried at 100°C for 8 hours, and calcined at 550°C for 3 hours to obtain the final catalyst B. The composition and main properties are shown in Table 1.

Embodiment 3

[0035] According to the method of Example 1, according to the component content ratio of catalyst C in Table 1, nickel nitrate, ammonium metatungstate, aluminum hydroxide, silica sol are added to the reaction tank, and then 12% ammonia water is added to form a gel until the pH The value is 10, the gelling temperature is 60°C, aging for 2 hours after gelling, then filtering, adding molybdenum trioxide to the filter cake, beating and stirring evenly, filtering, drying the filter cake at 120°C for 1 hour, and then extruding into strips, wet strips It was dried at 130°C for 3 hours and calcined at 600°C for 3 hours to obtain the final catalyst C, whose composition and main properties are shown in Table 1.

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Abstract

The inferior aviation kerosene fraction hydroupgrading process has the inferior aviation kerosene fraction as the material oil hydroupgraded to result in high quality aviation kerosene product. The catalyst in the hydroupgrading reaction region includes at least one kind of bulk phase catalyst comprising complex oxide NixWyOz and oxide MoO3 in the weight ratio 0.1-10 and accounting for 40-100 wt% of total catalyst. The present invention facilitates the hydroupgrading operation, increases the treating capacity of the apparatus, increases the service life of the catalyst and raises the quality of the aviation kerosene product.

Description

technical field [0001] The invention relates to a method for hydrogenation and upgrading of aviation kerosene distillates. A catalyst with strong hydrogenation performance is selected to increase the smoke point of inferior aviation kerosene and simultaneously refine it. Background technique [0002] At present, in the world, the trend of heavy and inferior crude oil is accelerating, coupled with the continuous development of the world economy and increasingly stringent environmental protection regulations, it is necessary to produce a large amount of light and clean fuels, all of which require the improvement and improvement of the existing refining technology Improve and produce products that meet the requirements at the lowest cost. In the processing methods of producing light products from heavy raw materials, catalytic cracking and coking still play an important role. As the quality of crude oil deteriorates, not only the quality of straight run products will deteriorat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G45/08
Inventor 刘涛曾榕辉姜蕊赵玉琢刘继华徐学军孙立刚
Owner CHINA PETROLEUM & CHEM CORP
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