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Carrier of hydrocracking catalyst, hydrocracking catalyst and preparation method of carrier and hydrocracking catalyst

A catalyst carrier and hydrocracking technology, which is applied in the direction of physical/chemical process catalysts, molecular sieve catalysts, chemical instruments and methods, etc., can solve the problems of not meeting industrial requirements, poor catalyst activity, poor nitrogen tolerance, etc., to improve effective Utilization rate, increased hydrogenation active sites, and improved reactivity

Active Publication Date: 2021-06-25
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] CN101450320B discloses a hydrocracking catalyst containing Y molecular sieve and its preparation method. In this invention, the Y molecular sieve is first formulated with aluminum salt and acid into a mixed solution, and then the hydrothermally treated Y molecular sieve is treated with the above mixed solution , the catalyst is finally prepared, although the catalyst has high activity, but its nitrogen tolerance is poor, and its industrial use is limited
The nitrogen resistance of the catalyst prepared by using this carrier is improved, but the activity of the catalyst is poor, which cannot meet the industrial requirements to a certain extent

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0077] (1) Preparation of hydrocracking catalyst carrier

[0078] (1) Preparation of amorphous silica-alumina dry glue A1 and slurry: sodium aluminate solution concentration 20gAl 2 o 3 / L, the concentration of sodium silicate solution is 100gSiO 2 / L, take 0.25L of sodium aluminate solution and put it into a gel-forming tank, then add 0.35L of sodium silicate solution, control the reaction temperature at 20°C, and feed CO with a concentration of 40v%. 2 gas, CO 2 When the gas accounts for 50% of the total intake, add 0.50L sodium silicate solution while ventilating to control the pH value of the gel to 9.5, then ventilate and stabilize for 20 minutes, filter the slurry and wash it with 65°C deionized water until neutral. The filter cake was beaten with water at a solid-to-liquid volume ratio of 10:1, treated at 130°C under 3.5MPa water vapor pressure for 2 hours, dried at 120°C for 6 hours, crushed and sieved to obtain the amorphous silica-alumina product A1. The properti...

Embodiment 2

[0085] (1) Preparation of hydrocracking catalyst carrier

[0086] (1) Preparation of amorphous silica-alumina dry glue A2 and slurry: sodium aluminate solution concentration 25gAl 2 o 3 / L, the concentration of sodium silicate solution is 50gSiO 2 / L, put 0.4L sodium aluminate solution into the gel-forming tank, then add 0.6L sodium silicate solution, control the reaction temperature at 22°C, and feed CO with a concentration of 35v%. 2 gas, CO 2 When the gas accounts for 50% of the total intake, add 0.2L sodium silicate solution while ventilating, control the pH value of the gel to be 9.5, then ventilate and stabilize for 20 minutes, filter the slurry and wash it with 75°C deionized water until neutral. The filter cake was beaten with water at a solid-to-liquid volume ratio of 8:1, treated at 120°C and 3.0 MPa steam pressure for 2 hours, dried at 120°C for 8 hours, crushed and sieved to obtain amorphous silicon-aluminum product A2, amorphous silicon The properties of the a...

Embodiment 3

[0093] (1) Preparation of hydrocracking catalyst carrier

[0094] (1) Preparation of amorphous silica-alumina dry glue A3 and slurry: sodium aluminate solution concentration 20gAl 2 o 3 / L, sodium silicate working solution concentration 75gSiO 2 / L, take 1.25L sodium aluminate solution and place it in a gel-forming tank, then add 0.5L sodium silicate solution, control the reaction temperature at 32°C, and feed CO with a concentration of 52v%. 2 Gas, stop when the pH value reaches 9.8, then ventilate and stabilize for 20 minutes, wash until neutral, add water to the filter cake according to the solid-liquid volume ratio of 9:1, and treat it at 130°C for 3 hours under 3.9MPa water vapor pressure. After drying at 130°C for 8 hours, it was crushed and sieved to obtain the amorphous silica-alumina product A3. The properties of the amorphous silica-alumina dry adhesive A3 are shown in Table 1. The prepared amorphous silica-alumina A3 and deionized water are mixed and beaten to f...

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Abstract

The invention discloses a carrier of a hydrocracking catalyst, the hydrocracking catalyst and a preparation method of the carrier and the hydrocracking catalyst. The carrier comprises an Al-SBA-15 molecular sieve, a Y molecular sieve and aluminum oxide, wherein in the hydrocracking catalyst carrier, the weight content of the Al-SBA-15 molecular sieve is 2%-40%. According to a preparation method of the Al-SBA-15 mesoporous molecular sieve, amorphous silica-alumina dry glue is used as a raw material, and a P123 triblock copolymer is used as a template agent to synthesize the Al-SBA-15 mesoporous molecular sieve. The hydrocracking catalyst prepared by adopting the carrier is excellent in comprehensive performance, and has the characteristics of high potential aromatic content of heavy naphtha, high cetane number of diesel oil, low BMCI value of tail oil and the like when being used in a hydrocracking reaction process.

Description

technical field [0001] The invention relates to a hydrocracking catalyst carrier, a hydrocracking catalyst and a preparation method thereof, in particular to a tail oil type hydrocracking catalyst carrier, a hydrocracking catalyst and a preparation method thereof. Background technique [0002] With the increasing demand for high-quality hydrocracking tail oil in the international oil market, it is necessary to obtain more from heavy distillate oil, and the hydrocracking process is one of the important means of lightening heavy oil. The process has the characteristics of strong raw material adaptability, good product quality, strong adjustment flexibility, and flexible product structure, which makes the status of hydrocracking technology more and more important, especially for my country's current shortage of oil resources and environmental protection requirements. The increasingly stringent structure of petroleum products can no longer meet market requirements. The applicatio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J29/16B01J29/08C10G47/20
CPCB01J29/005C10G47/20B01J29/084B01J29/166B01J29/0308B01J29/0341Y02P20/52
Inventor 樊宏飞唐兆吉
Owner CHINA PETROLEUM & CHEM CORP
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