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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. The distribution of hydrogen active metals is not easy to control, etc., to achieve good performance, improved interaction, and good product quality

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

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 cannot be well coordinated, which ultimately affects the hydrocracking performance of the catalyst

Method used

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  • Preparation method of hydrocracking catalyst
  • Preparation method of hydrocracking catalyst
  • Preparation method of hydrocracking catalyst

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] 480 milliliters of nickel chloride solution containing NiO of 45 g / L, containing Al 2 o 3 350 ml of 130g / L aluminum chloride solution, containing ZrO 2 150 milliliters of 100 g / L zirconium oxychloride solution was mixed in solution tank 1, diluted with 800 milliliters of clean water, and configured as solution A. will contain WO 3 88g / L ammonium metatungstate 950ml and containing Al 2 o 3 400 milliliters of aluminum chloride solution of 130g / L is mixed in the solution tank 2, adds 800 milliliters of clean water to dilute, and adds 600 milliliters containing SiO under stirring condition 2 100g / L dilute water glass solution, configure solution B. Add benzylamine and ammonia water to solution A under stirring, the molar ratio of benzylamine to active metal Ni is 0.8, the gelling temperature is kept at 50°C, the pH value is controlled at 7.6 at the end, and the gelling time is controlled at 60 minutes to generate Nickel, Aluminum Precipitate Slurry I. Add 1000mL of...

Embodiment 2

[0039] According to the method of 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, prepare working solution A, add nitric acid in dissolving tank 2 Aluminum, ammonium metatungstate and dilute water glass prepare working solution B, wherein dilute water glass contains SiO 2 500 ml of 110 g / L dilute water glass solution. Add phenethylamine and ammonia water to solution A under stirring, the molar ratio of phenethylamine to active metal Ni is 1.2, the gelling temperature is maintained at 60°C, the pH value is controlled at 7.8 at the end, and the gelling time is controlled at 50 minutes. Slurry I containing nickel and aluminum precipitates is generated. Add 1200mL of clean water into the reaction tank, add phenethylamine, ammonia water, and solution B into the reaction tank in parallel, the molar ratio of phenethylamine to active metal W is 1.4, keep the gel forming te...

Embodiment 3

[0041] According to the method of embodiment 1, press the component content ratio of catalyst C in table 1, add nickel chloride, aluminum chloride solution in dissolving tank 1, prepare working solution A, add aluminum chloride in dissolving tank 2 , ammonium molybdate, and dilute water glass to prepare working solution B, wherein the dilute water glass contains SiO 2 600 ml of 100 g / L dilute water glass solution. Add ethanolamine and ammonia water to solution A under stirring, the molar ratio of ethanolamine to active metal Ni is 1.5, the gelling temperature is kept at 40°C, the pH value is controlled at 8.0 at the end, and the gelling time is controlled at 60 minutes to form nickel-containing, Aluminum Precipitate Slurry I. Add 1200mL of clean water into the reaction tank, add ethanolamine, ammonia water, and solution B into the reaction tank in parallel, the molar ratio of ethanolamine to active metal W is 0.5, keep the gelling temperature at 55°C, and flow in parallel dur...

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Abstract

The invention discloses a preparation method of a hydrocracking catalyst. The method includes preparing nickel-aluminum precipitate by a normal precipitation method and tungsten-silicon-aluminum precipitate by a parallel-flow precipitation method, adding an organic amine in gelling process of any one step or two steps above, mixing the two precipitates, adding a molecular sieve suspension, and performing aging and forming to obtain the catalyst. The inventive method can control the distribution of different metals with hydrogenation activities, is conducive to forming a highly active phase between active metals tungsten and nickel, can improve the interaction between the active metals and a carrier, so that the hydrogenation activity and cracking activity of the obtained hydrocracking catalyst can be well coordinated, and the use performance of the hydrocracking catalyst is 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 Applications(China)
IPC IPC(8): B01J29/16
Inventor 徐学军王海涛刘东香冯小萍
Owner CHINA PETROLEUM & CHEM CORP
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