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Heavy oil hydrogenation catalyst and preparation method thereof

A heavy oil hydrogenation and catalyst technology, which is applied to catalyst carriers, molecular sieve catalysts, chemical instruments and methods, etc., can solve the problems of small mesoporous ratio, poor pore connectivity, poor mixing uniformity, etc., and achieve high crystallinity, good Hydrogenation activity, effect of promoting dispersion and vulcanization

Active Publication Date: 2014-10-01
BC P INC CHINA NAT PETROLEUM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This composite method is characterized by simplicity and ease, and is a commonly used method for preparing catalysts in industry, but there are disadvantages such as poor mixing uniformity, poor pore connectivity, and small mesopore ratio.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] This embodiment provides a phosphorus-containing HY molecular sieve (P 2 o 5 Content is the preparation method of 3wt%), it comprises the following steps:

[0043] 4.24g of NaOH solid (NaOH≥96wt%), 2.09g of NaAlO 2 Solid (Al 2 o 3 ≥45wt%) dissolved to 19.95g of H 2 O, then add 22.72g of water glass solution (SiO 2 , 28m%, modulus: 3.3), standing and aging at room temperature for 24 hours, to prepare the directing agent;

[0044] Add 7.2g of phosphoric acid to 130.97g of H 2 After stirring evenly in O, with 0.15g of NaOH, 13.09g of NaAlO 2 After mixing, place in a 500mL plastic beaker, add 142.43g of water glass solution, and stir vigorously to obtain the mother liquor;

[0045] Add the directing agent dropwise to the mother liquor, stir vigorously for 20 minutes, then transfer to the crystallization tank, age at room temperature for 24 hours, and crystallize at 100°C for 22 hours; wash the material obtained after crystallization until the pH value of the filtrat...

Embodiment 2

[0048] This embodiment provides a phosphorus-containing HY molecular sieve (P 2 o 5 Content is the preparation method of 2wt%), it comprises the following steps:

[0049] 4.24g of NaOH solid (NaOH≥96wt%), 2.09g of NaAlO 2 Solid (Al 2 o 3 ≥45wt%) dissolved to 19.95g of H 2 O, then add 22.72g of water glass solution (SiO 2 , 28m%, modulus: 3.3), standing and aging at room temperature for 24 hours, to prepare the directing agent;

[0050] Add 5.1g of phosphoric acid to 130.97g of H 2 After stirring evenly in O, with 0.15g of NaOH, 13.09g of NaAlO 2 After mixing, place in a 500mL plastic beaker, add 142.43g of water glass solution, and stir vigorously to obtain the mother liquor;

[0051] Add the directing agent dropwise to the mother liquor, stir vigorously for 20 minutes, then transfer to the crystallization tank, age at room temperature for 24 hours, and crystallize at 100°C for 22 hours; wash the material obtained after crystallization until the pH value of the filtrat...

Embodiment 3

[0054] This example provides a preparation method of a heavy oil hydrogenation catalyst, which mainly uses nickel-modified PY / TiO 2 -Al 2 o 3 (organic titanium source + organic aluminum source) method for loading active components (metal Ni-W) on a composite carrier, the method specifically includes the following steps:

[0055] Nickel modified PY / TiO 2 -Al 2 o 3 Preparation of composite carrier: Weigh 34.0g of tetrabutyl titanate and 20.8g of aluminum isopropoxide and dissolve them in 150mL of ethanol to obtain solution A; add 1.64g of nickel nitrate hexahydrate crystals to solution A, stir and dissolve; Mix 19mL of water, 41.2mL of acetic acid and 40mL of absolute ethanol to obtain solution B; under vigorous stirring, drop solution B into solution A for reaction; add 3g of the solution prepared in Example 1 after the dropwise addition and reaction for 20min Molecular sieve 3PY, reacted for 10 minutes to obtain sol, and the sol was aged for 24h-48h under natural conditio...

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Abstract

The invention provides a heavy oil hydrogenation catalyst and a preparation method thereof. The preparation method comprises the following steps: introducing a phosphorus source in the preparation process of a Y molecular sieve to obtain a phosphorus-containing NaY molecular sieve; converting the phosphorus-containing NaY molecular sieve into a phosphorus-containing hydrogen-type Y molecular sieve; preparing a solution from a titanium precursor and an aluminum precursor; adding the phosphorus-containing hydrogen-type Y molecular sieve, and hydrolyzing the solution to obtain a micro-pore / meso-pore oxide composite carrier; adding cobalt salt or nickel salt into the solution for preparing the micro-pore / meso-pore oxide composite carrier, and hydrolyzing the solution to obtain a metal-modified micro-pore / meso-pore oxide composite carrier; dropwise adding a solution of active components of nickel-tungsten or nickel-molybdenum into the metal-modified micro-pore / meso-pore oxide composite carrier; and immersing, drying and roasting to obtain the heavy oil hydrogenation catalyst. The catalyst provided by the invention can meet requirements on diffusion, hydrogenolysis and hydrogenation reaction of heavy oil macro-molecules, and is excellent in hydrogenation-denitrification activity on heavy oil.

Description

technical field [0001] The invention relates to a heavy oil hydrogenation catalyst and a preparation method thereof, in particular to a heavy oil hydrogenation catalyst with a micro / mesoporous oxide as a carrier and a preparation method thereof, belonging to the technical field of catalysts and their preparation. Background technique [0002] At present, the market demand for light oil products and quality requirements continue to increase. However, with the intensification of the trend of heavy and inferior crude oil, the proportion of inferior heavy oil has increased significantly. Therefore, the production technology of inferior heavy oil to light and clean development is particularly important. [0003] Hydrotreating is one of the most effective technologies to improve the processability of inferior heavy oil, and the level of hydrotreating technology mainly depends on the performance of the catalyst. Traditional hydrotreating catalysts use alumina as a carrier, which h...

Claims

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Application Information

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IPC IPC(8): B01J29/14B01J32/00B01J35/10C10G45/12
Inventor 周亚松魏强刘亭亭丁思佳罗秀娟张涛
Owner BC P INC CHINA NAT PETROLEUM CORP
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