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A kind of hydrocracking catalyst carrier and its preparation method

A catalyst carrier and hydrocracking technology, which is applied in the direction of catalyst carrier, physical/chemical process catalyst, molecular sieve catalyst, etc., can solve the problem of low selectivity of middle distillates, achieve high crystallinity, high purity, and reduce usage Effect

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

[0048] (1) Preparation of amorphous silicon-aluminum precursor

[0049] 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%.

[0050] (2) Preparation of gel

[0051] 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

[0057] (1) Preparation of amorphous silicon-aluminum precursor

[0058] 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 10.02 , 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%.

[0059] (2) Preparation of gel

[0060] Press Al 2 o 3 : SiO 2 : Na 2 O: H 2 O=1:90:1.7:260, TEAOH / SiO 2 = 0.060 total f...

Embodiment 3

[0066] (1) Preparation of amorphous silicon-aluminum precursor

[0067] 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%.

[0068] (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 hydrocracking catalyst carrier and a preparation method thereof. The carrier comprises a beta molecular sieve, an SBA-15 molecular sieve, amorphous aluminum silicon and an adhesive, wherein according to the beta molecular sieve, the molar ratio of SiO2 / Al2O3 is 60-100, the specific area is 505-850 m<2> / g, the pore volume is 0.35-0.60 mL / g, and the relative crystallinity is 100-148%; the relative crystallinity obtained after steam hydro-thermal treatment of the beta molecular sieve is 95% or above. The carrier adopts the beta molecular sieve with the good crystallinity, high silica-alumina ratio and stability and SBA-15 as the acid component of the carrier, and the obtained hydrocracking catalyst has the advantages of being high in activity, good in middle oil selectivity and good in product characteristic.

Description

technical field [0001] The invention relates to a hydrocracking catalyst carrier and a preparation method thereof, in particular, β molecular sieve and SBA-15 molecular sieve are used as main cracking components, and the hydrocracking catalyst prepared therefrom is suitable for hydrogenation of high-quality middle distillate oil cracking process. Background technique [0002] With the development of the fuel oil market and increasingly stringent environmental protection regulations, countries are demanding higher and higher quality environmentally friendly products, and major petrochemical companies have increased investment in the development of heavy oil conversion processes. Hydrocracking technology is the main process technology for producing low-sulfur content and high-quality middle distillate oil. [0003] The core of hydrocracking technology is hydrocracking catalyst, and its technical progress depends on the improvement of catalyst level. Molecular sieve, as the ma...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J29/80B01J32/00C10G47/16
Inventor 樊宏飞王继锋孙晓艳于政敏
Owner CHINA PETROLEUM & CHEM CORP
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