Preparation method of hydrocracking catalyst

A hydrocracking and catalyst technology, applied in the direction of physical/chemical process catalysts, molecular sieve catalysts, chemical instruments and methods, etc., can solve the problem that the hydrogenation activity and cracking performance cannot be well coordinated, affecting the catalyst hydrocracking performance, The distribution of hydrogenation active metals is not easy to control, etc., to achieve good performance, improved interaction, and good product quality

Active Publication Date: 2016-11-16
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The co-precipitation method adopted above will make the distribution of different hydrogenation active metals difficult to control, thereby affecting the distribution of different hydrogenation active metals and the interaction between different hydrogenation active metals and between the active metal and the carrier, so that the hydrogenation Hydrogen activity and cracking performance cannot be well coordinated, which ultimately affects the hydrocracking performance of the catalyst

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] 500 ml of nickel chloride solution containing NiO 60g / L, containing Al 2 o 3 450 ml of 118g / L aluminum chloride solution, containing ZrO 2 125 ml of 130 g / L zirconium oxychloride solution, mixed in solution tank 1, diluted with 800 ml of clean water, mixed tetraethylammonium hydroxide and polyoxyethylene (20) sorbitan monooleate (Tween 80 ) after mixing, add to the solution tank 1, the amount of organic compound accounted for the Al in the synthetic nickel and aluminum precipitate 2 o 3 25.0wt% of the weight, tetraethylammonium hydroxide accounts for 55wt% of the mixed organic compound, and is configured into solution A after stirring evenly. will contain WO 3 1000ml of 110g / L ammonium metatungstate and containing Al 2 o 3 450 milliliters of aluminum chloride solution of 118g / L are mixed in the solution tank 2, add 800 milliliters of clean water for dilution, add 550 milliliters of SiO containing 2 120g / L dilute water glass solution, configure solution B. Add ...

Embodiment 2

[0039] According to the method for embodiment 1, press the component content ratio of catalyst B in table 1, add nickel nitrate, titanium chloride, aluminum nitrate solution in dissolving tank 1, cetyltrimethylammonium bromide and After mixing the isomerized decanol polyoxyethylene (8) ether, add it to the solution tank 1, and the amount of the mixed organic compound accounted for the Al in the synthetic nickel-containing and aluminum-containing precipitate 2 o 3 20.0wt% by weight, cetyltrimethylammonium bromide accounts for 45wt% of the amount of mixed organic compounds, stir well and prepare working solution A, add aluminum nitrate, ammonium metatungstate and dilute water to the dissolution tank 2 Glass preparation working solution B, in which dilute water glass contains SiO 2 520 ml of 100 g / L dilute water glass solution. Add ammonia water to solution A under stirring, keep the gel forming temperature at 50°C, control the pH value at 7.6 at the end, control the gel formin...

Embodiment 3

[0041] According to the method for embodiment 1, press the component content ratio of catalyst C in table 1, add nickel chloride, aluminum chloride solution in dissolving tank 1, tetrabutyl ammonium hydroxide and polyoxyethylene stearate (12 ) After the grease is mixed, add it to the solution tank 1, and the amount of the mixed organic compound accounts for the amount of Al in the synthetic nickel-containing and aluminum-containing precipitate 2 o 3 18wt% of the weight, tetrabutylammonium hydroxide accounts for 60wt% of the consumption of mixed organic compound, stirs and prepares working solution A, adds aluminum chloride, ammonium molybdate, dilute water glass to prepare working solution B in dissolving tank 2, wherein Diluted water glass contains SiO 2380 ml of 122g / L dilute water glass solution. Add ammonia water to solution A under stirring, keep the gel forming temperature at 55°C, control the pH value at 8.0 at the end, control the gel forming time at 50 minutes, and ...

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Abstract

The invention discloses a preparation method of a hydrocracking catalyst. According to the method, a nickel and aluminum precipitate is prepared with a straight addition method; a tungsten, silicon and aluminum precipitate is prepared with a parallel flow precipitation method; the two precipitates are mixed, and a suspension liquid of Y-type molecular sieve is added; and the catalyst is prepared. With the method, the pore structure of the catalyst can be optimized. The distributions of different hydrogenation active metals can be controlled; high-activity phase can be formed among active metals tungsten and nickel; and the interaction between active metals and a carrier can be improved. Therefore, the hydrogenation activity and the cracking activity of the obtained hydrocracking catalyst can cooperate well, and the application performance of the hydrocracking catalyst can be improved.

Description

technical field [0001] The invention relates to a preparation method of a hydrocracking catalyst for treating heavy hydrocarbons. Background technique [0002] At present, the shortage of petroleum resources in the world, the quality of crude oil is deteriorating year by year, the demand for middle distillate oil is increasing, the upgrading of petrochemical products and the stricter environmental regulations have greatly promoted the transformation of heavy oil into lighter products, and constituted an accelerated development of hydrogenation. The power of technology. The main features of hydrocracking technology are strong adaptability of raw materials, high selectivity of product plans and target products, good product quality and high added value, and can directly produce a variety of high-quality petroleum products (such as gasoline, jet fuel, diesel oil, lubricating oil base Oil, etc.) and high-quality chemical raw materials (such as benzene, toluene, xylene, ethylene...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J29/16C10G47/20
Inventor 王海涛徐学军刘东香冯小萍
Owner CHINA PETROLEUM & CHEM CORP
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