A kind of method for preparing 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 of affecting the performance of catalyst hydrocracking, the distribution of hydrogenation active metals is not easy to control, hydrogenation and cracking The activity cannot be well coordinated to achieve the effect of improving the interaction, good product quality, and high and medium oil selectivity

Active Publication Date: 2017-02-15
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 and cracking activity cannot be well matched, which ultimately affects the hydrocracking performance of the catalyst

Method used

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  • A kind of method for preparing hydrocracking catalyst
  • A kind of method for preparing hydrocracking catalyst
  • A kind of method for preparing hydrocracking catalyst

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] 550 milliliters of nickel chloride solution containing NiO 48g / L, containing Al 2 o 3 400ml of 120g / L aluminum chloride solution, containing ZrO 2 80 milliliters of 120 g / L zirconium oxychloride solution was mixed in the solution tank 1, and diluted with 800 milliliters of clean water to prepare solution A. will contain WO 3 92g / L ammonium metatungstate 1050ml and containing Al 2 o 3 400 milliliters of aluminum chloride solution of 120g / L is mixed in the solution tank 2, and diluted with 800 milliliters of clean water, and 600 milliliters of SiO are added under agitation. 2 100g / L dilute water glass solution, configure solution B. 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 forming time at 60 minutes, and 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 reacti...

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 2 550 ml of dilute water glass solution of 120 g / L. 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 7.8, 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 2 650 ml of dilute water glass solution of 115 g / L. Add ammonia water to solution A under stirring, keep the gel forming temperature at 45°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 1000mL 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 50 minutes , generating slurry II containing tungsten, silicon, and a...

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Abstract

The invention discloses a preparation method for a hydrocracking catalyst. The method comprises the following steps: preparing a nickel-aluminum precipitate by using a regular addition method; preparing a tungsten-silicon-aluminum precipitate by using a parallel flow method; mixing the two precipitates, adding a Y type molecular sieve suspension and carrying out ageing; then adding an organic compound and carrying out pulping and mixing; and carrying out molding and the like so as to prepare the hydrocracking catalyst. The method enables the catalyst to have high using performance by improving the distribution of a hydrogenation active metal and coordination and cooperation between the hydrogenation active metal and a carrier and further enhancing the utilization rate of the hydrogenation active metal. The catalyst is particularly applicable as a high-and-medium oil type hydrocracking catalyst.

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): B01J29/076C10G47/20
Inventor 王海涛徐学军刘东香冯小萍
Owner CHINA PETROLEUM & CHEM CORP
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