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A kind of hydrocracking catalyst and preparation method thereof

A hydrocracking and catalyst technology, applied in physical/chemical process catalysts, molecular sieve catalysts, chemical instruments and methods, etc., can solve the problem of low selectivity of middle distillates

Active Publication Date: 2018-07-20
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Beta molecular sieves are not hydrothermally treated or hydrothermally treated at relatively low temperatures, the molar ratio of silica to alumina is less than 30:1 and at least 28 wt% SF 6 Adsorption capacity, the β molecular sieve obtained by modification is used as a catalyst prepared by cracking components, and the selectivity of middle distillates is not high

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] (1) Preparation of amorphous silicon-aluminum precursor

[0052] The preparation concentration is 40gAl 2 o 3 / L sodium aluminate working solution, take SiO 2 28wt% sodium silicate solution, then diluted to a concentration of 120g SiO 2 / L sodium silicate working solution. Take 200mL of sodium aluminate working solution and place it in a gel-forming tank, then add 50mL of sodium silicate working solution, control the reaction temperature at 18°C, and feed CO with a concentration of 50v%. 2 gas, stop passing CO when the pH reaches 10.2 2 , then add 50mL of sodium silicate working solution, and then ventilate and stabilize for 20 minutes to obtain an amorphous silicon-aluminum precursor. The amorphous silicon-alumina precursor is based on the total weight of silicon dioxide and aluminum oxide, and the content in terms of silicon dioxide is 60wt%.

[0053] (2) Preparation of gel

[0054] Press Al 2 o 3 : SiO 2 : Na 2 O: H 2 O=1:80:1.5:240, TEAOH / SiO 2 =0.070 t...

Embodiment 2

[0060] (1) Preparation of amorphous silicon-aluminum precursor

[0061] The preparation concentration is 50gAl 2 o 3 / L sodium aluminate working solution, take SiO 2 28wt% sodium silicate solution, then diluted to a concentration of 100g SiO 2 / L sodium silicate working solution. Take 200mL of sodium aluminate working solution and place it in a gel-forming tank, then add 60mL of sodium silicate working solution, control the reaction temperature at 20°C, and feed CO with a concentration of 50v%. 2 gas, stop passing CO when the pH reaches 10.0 2 , then add 40mL of sodium silicate working solution, and ventilate and stabilize for 20 minutes to obtain an amorphous silicon-aluminum precursor. The amorphous silicon-alumina precursor is based on the total weight of silicon dioxide and aluminum oxide, and the content in terms of silicon dioxide is 50wt%.

[0062] (2) Preparation of gel

[0063] Press Al 2 o 3 : SiO 2 : Na 2 O: H 2 O=1:90:1.7:260, TEAOH / SiO 2 = 0.060 total...

Embodiment 3

[0069] (1) Preparation of amorphous silicon-aluminum precursor

[0070] The preparation concentration is 50gAl 2 o 3 / L sodium aluminate working solution, take SiO 2 28wt% sodium silicate solution, then diluted to a concentration of 100g SiO 2 / L sodium silicate working solution. Take 160mL of sodium aluminate working solution and place it in a gel-forming tank, then add 45mL of sodium silicate working solution, control the reaction temperature at 20°C, and feed CO with a concentration of 50v%. 2 gas, stop passing CO when the pH reaches 10.0 2 , then add 35mL of sodium silicate working solution, and then ventilate and stabilize for 20 minutes to obtain an amorphous silica-alumina precursor. The amorphous silica-alumina precursor is based on the total weight of silica and alumina, and the content in terms of silica is 50wt%.

[0071] (2) The preparation of the gel is the same as in Example 1, the difference is that: according to Al 2 o 3 : SiO 2 : Na 2 O: H 2 O=1:70:...

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Abstract

The invention discloses a hydrogenation cracking catalyst and a preparation method of same. The hydrogenation cracking catalyst comprises a carrier and a hydrogenation active metal component, wherein the carrier includes [beta] molecular sieve, amorphous silica-alumina, and an adhesive. On the basis of the weight of the carrier, the carrier includes, by weight, 2-15% of the [beta] molecular sieve, 45-85% of the amorphous silica-alumina, and 13-40% of the adhesive. In the carrier, the [beta] molecular sieve, which is high in crystallization degree, high in Si / Al ratio and good in stability, is used as an acidic component and is matched with the amorphous silica-alumina, so that the hydrogenation cracking catalyst prepared with the carrier is especially suitable for a single-stage hydrogenation cracking process with high activity, good medium oil selectivity and high product properties.

Description

technical field [0001] The invention relates to a hydrocracking catalyst and a preparation method thereof, more specifically a hydrocracking catalyst containing β molecular sieve and a preparation method thereof. In particular, the hydrocracking catalyst and the preparation method thereof can produce high-quality low-condensation diesel oil while taking into account the catalyst activity and the selectivity of middle distillates. Background technique [0002] Diesel, as a transportation fuel for compression ignition engines, plays an irreplaceable role in modern production and life, and can be used as motor fuel for vehicles, tanks, airplanes, tractors, railway vehicles and other vehicles or other machinery , can also be used for power generation, heating and so on. Depending on the industry and environment in which it is used, users have very different quality requirements for diesel products. With the continuous improvement of economic development and environmental protec...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J29/78C10G47/20
Inventor 樊宏飞王继锋孙晓艳于政敏
Owner CHINA PETROLEUM & CHEM CORP
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