Hydrocracking catalyst preparation method

A hydrocracking and catalyst technology, applied in physical/chemical process catalysts, molecular sieve catalysts, chemical instruments and methods, etc., can solve the problems affecting the hydrocracking performance of the catalyst, the distribution of hydrogenation active metals is not easy to control, and the hydrogenation activity is not easy to be controlled. Cracking can not be well matched and other problems, to achieve the effect of good performance, improved interaction, high oil selectivity

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

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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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  • Hydrocracking catalyst preparation method

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] 450 milliliters of nickel chloride solution containing NiO of 54 g / L, containing Al 2 o 3 400ml of 120g / L aluminum chloride solution, containing ZrO 2 140 milliliters of 150 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 85g / L ammonium metatungstate 1100ml and containing Al 2 o 3 400 milliliters of 120g / L aluminum chloride solution, mixed in the solution tank 2, add 800 milliliters of clean water for dilution, add 600 milliliters of SiO containing 2 100g / L dilute water glass solution, configure solution B. Add ammonia water to solution A under stirring, keep the gelling temperature at 55°C, control the pH value at the end of the solution at 7.6, and control the gelling time at 60 minutes to generate slurry I containing nickel and aluminum precipitates. Add 1000mL of clean water into the reaction tank, add ammonia water and solution B into the reaction t...

Embodiment 2

[0037] 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 2 450 ml of dilute water glass solution of 120 g / L. Add ammonia water to solution A under stirring, keep the gelling temperature at 50°C, control the pH value at the end of the solution at 7.8, and control the gelling time at 60 minutes to generate slurry I containing nickel and aluminum precipitates. Add 800mL of clean water into the reaction tank, add ammonia water and solution B into the reaction tank concurrently, keep the gelling temperature at 50°C, and control the pH value during the gelling reaction process at 7.8, and control the gelling time at 60 minutes. A slurry II containing tungsten, ...

Embodiment 3

[0039] 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 2 500 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 8.0 at the end, control the gel forming time at 50 minutes, and generate slurry I containing nickel and aluminum precipitates. Add 1200mL of clean water into the reaction tank, add ammonia water and solution B into the reaction tank concurrently, keep the gelling temperature at 60°C, and control the pH value during the gelling reaction process at 7.8, and control the gelling time at 60 minutes , generating slurry II containing tungsten, silicon, and alum...

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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, such that the catalyst is prepared. With the method, 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 the 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 Applications(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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