Preparation method of hydrocracking catalyst

A hydrocracking and catalyst technology, applied in physical/chemical process catalysts, molecular sieve catalysts, chemical instruments and methods, etc., can solve problems such as instability, ammonia nitrogen pollution, large precipitated particles, etc., and achieve low cost, pollution reduction, and effect. obvious effect

A hydrocracking and catalyst technology, applied in physical/chemical process catalysts, molecular sieve catalysts, chemical instruments and methods, etc., can solve problems such as instability, ammonia nitrogen pollution, large precipitated particles, etc., and achieve low cost, pollution reduction, and effect. obvious effect

CN102451744BActive Publication Date: 2014-03-05CHINA PETROLEUM & CHEM CORP +1
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  • Preparation method of hydrocracking catalyst

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Embodiment 1

[0027] Catalyst A of the present invention, weight composition is: WO 3 22.0%, NiO 9.0%, ZrO 2 7%, SiO 2 33%, Al 2 o 3 29%, of which Y-type molecular sieve content is 20%.

[0028] Concrete preparation steps are as follows:

[0029] (1) Prepare acidic solution A: configure 200 ml of nickel chloride solution containing NiO of 140g / l, containing WO 3 85g / l ammonium metatungstate 1000ml, containing Al 2 o 3 300 ml of aluminum sulfate solution at a concentration of 90 g / l with ZrO 2 150 ml of 140 g / l zirconium oxychloride solution, mixed in a 5 liter container, diluted with 800 ml of clean water. Formulated with SiO 2 Add 550 milliliters of 75 g / l dilute water glass solution to the above mixed salt solution with stirring.

[0030] (2) Configuration of alkaline sodium metaaluminate solution B: configuration containing Al 2 o 3 The concentration is 9g / l alkaline solution 3000ml.

[0031] (3) Put the solutions of A and B side by side into the gel-forming tank to form ...

Embodiment 2

[0037] Catalyst B of the present invention, weight composition and preparation method are with embodiment 1, and aluminum sulfate is containing Al in the acidic solution 2 o 3 300 ml of aluminum sulfate solution with a concentration of 72g / l, the alkaline sodium metaaluminate solution contains Al 2 o 3 3000ml of alkaline solution with a concentration of 11g / l.

Embodiment 3

[0039] Catalyst C of the present invention, weight composition and preparation method are the same as embodiment 1, and aluminum sulfate is containing Al in the acidic solution 2 o 3 300 ml of aluminum sulfate solution with a concentration of 54g / l, the alkaline sodium metaaluminate solution contains Al 2 o 3 Concentration is 3000ml of alkaline solution of 13g / l.

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Abstract

The invention discloses a preparation method of a hydrocracking catalyst. The catalyst adopts amorphous silicon alumina as a carrier, adopts a Y-shaped molecular sieve as an acidic component, adopts VIB group metal and VIII group metal as hydrogenation active metal components, adopts IVB group metal as an additive, and is prepared by combining an acidic mixed solution A with the hydrogenation active metal, silicon, aluminium and the additive and a sodium meta-aluminate alkaline solution B, performing gel formation, and adding a suspension of the Y-shaped molecular sieve. The method of the invention can increase the pore volume and the specific surface area of the catalyst, improve the metal dispersiveness in the catalyst, and provide the catalyst with high hydrocracking activity, middle oil selectivity and stability.

Description

technical field [0001] The invention relates to a method for preparing a hydrocracking catalyst, in particular to a method for preparing a hydrocracking catalyst with high activity and high-medium oil selectivity containing modified Y-type molecular sieves. Background technique [0002] With the development of the world economy, the demand for middle distillate fuels in the transportation industry, which is driving the rapid economic development, is increasing, and the extraction of crude oil is also increasing day by day, becoming worse and heavier. At the same time, more and more attention has been paid to the harm of pollutants emitted by fuel combustion to the environment on which human beings depend, and stricter environmental protection regulations have also been introduced. This requires refineries to produce middle distillate oil products of good quality and quantity to meet the needs of social development. Hydrocracking can convert heavy oil into high-quality middl...

Claims

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Application Information

Patent Timeline
05 Mar 2014
Publication
CN102451744B
IPC
B01J29/16; C10G47/20
Inventors
刘东香; 徐学军