Preparation method of hydro-upgrading catalyst

A technology of hydrogenation and upgrading and catalyst, applied in the direction of catalyst carrier, molecular sieve catalyst, physical/chemical process catalyst, etc., to achieve the effect of improving cetane number, reducing strong acid content, and reasonable distribution of acidity and acidity

Active Publication Date: 2017-05-17
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the catalyst is used for diesel hydro-upgrading, although the freezing point of the diesel fraction can be lowered and the cetane number of the modified diesel can be increased, the diesel yield is still low below 97%.

Method used

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Examples

Experimental program
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Effect test

preparation example Construction

[0023] According to the preparation method of the modified hydrogenation upgrading catalyst carrier provided by the present invention, it can specifically adopt the following steps:

[0024] 1. Prepare solution A with soluble boron-containing compounds, in which the concentration of boron-containing compounds is 0.1g / 100mL~32g / 100mL in terms of diboron trioxide;

[0025] 2. Prepare water-soluble silicone oil into solution B, wherein the concentration of water-soluble silicone oil is 0.1g / 100mL~20g / 100mL in terms of silicon oxide;

[0026] 3. Mix soluble boron-containing compound and water-soluble silicone oil to prepare solution C, wherein the concentration of boron-containing compound is 0.1g / 100mL~16g / 100mL in terms of diboron trioxide, and the concentration of water-soluble silicone oil is 0.1g / 16g / 100mL in terms of silicon oxide. 100mL~10g / 100mL;

[0027] 4. Use at least one of the following methods to introduce water-soluble silicone oil and boron-containing compounds on...

Embodiment 1

[0044] Weigh 8.1 g of ammonium tetraborate, add an appropriate amount of deionized water to dissolve, and make the volume 105 mL to prepare solution A1. Weigh 21.0 g of water-soluble silicone oil A, add an appropriate amount of deionized water to dissolve, and make the volume 105 mL to prepare solution B1. While stirring, slowly pour 35mL of B1 solution into 35mL of A1 solution, and add an appropriate amount of deionized water to make the final volume 72mL to prepare C1 solution.

[0045] Take 100g of hydrogenation modification catalyst support Z1, spray the solution C1 evenly on the support Z1, after curing for 10 hours, heat-treat at 100°C for 2h, then heat-treat at 220°C for 2h to obtain the modified support S1.

[0046] Take 100g of hydrogenation modification catalyst carrier Z1, dilute 35mL of solution B1 to 72mL with deionized water, spray evenly on the carrier Z1, keep in good condition for 10 hours, heat-treat at 100°C for 2 hours, then dilute 35mL of solution A1 with ...

Embodiment 2

[0048] Weigh 3.6g of boric acid and 32.0g of water-soluble silicone oil B, add appropriate amount of deionized water to dissolve, make the volume 146mL, and prepare solution C2.

[0049] Take 100g of hydrogenation modification catalyst carrier Z1, spray 73mL of solution C2 evenly on the carrier Z1, after curing for 10 hours, heat-treat at 100°C for 2h, then heat-treat at 220°C for 2h to obtain the modified carrier S3.

[0050] Take 100g of hydrogenation modification catalyst carrier Z1, spray 73mL solution C2 evenly on the carrier Z1, after 10 hours of curing, heat treatment at 100°C for 2h and 350°C for 2h under nitrogen atmosphere to obtain the modified carrier S4.

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Abstract

The invention discloses a preparation method of a hydro-upgrading catalyst. The preparation method comprises the following steps: preparing a modified hydro-upgrading catalyst carrier, loading a hydrogenated active metal component by adopting an impregnating method, drying and roasting to obtain the hydro-upgrading catalyst; in the preparation of the modified hydro-upgrading catalyst carrier, water soluble silicone oil and a soluble boron-containing compound are sequentially or simultaneously added into the hydro-upgrading catalyst carrier, and the modified hydro-upgrading catalyst carrier is prepared after thermal treatment. The preparation method disclosed by the invention has the benefits that the distribution of acid centers and hydrogenation activity centers can be regulated, so that a mutual coordination effect is realized, and the overall performance of the catalyst is improved; the hydro-upgrading catalyst is particularly suitable for being used as a diesel hydro-upgrading catalyst.

Description

technical field [0001] The invention relates to a preparation method of a hydrogenation upgrading catalyst, in particular to a preparation method of a diesel hydrogenation upgrading catalyst. Background technique [0002] For clean diesel production, existing technologies mainly include hydrorefining and medium-pressure hydroupgrading technologies. Hydrofining can reduce the sulfur content of modified diesel, but it has limited ability to improve cetane number and lower T95 temperature. Medium-pressure hydro-upgrading uses a hydro-upgrading catalyst containing molecular sieves (such as Y-type molecular sieves, β-molecular sieves) to properly crack aromatics in diesel oil, while reducing the content of sulfur and nitrogen impurities in diesel oil, and improving the tenacity of diesel oil. Hexane number and other comprehensive properties. However, if the current hydrogenation upgrading catalyst is used to improve the comprehensive performance of diesel oil (sulfur and nitrog...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J29/78B01J29/16B01J32/00B01J29/08B01J29/80B01J29/70C10G49/08
Inventor 孙立刚杨占林姜虹唐兆吉温德荣王继锋王平彭绍忠
Owner CHINA PETROLEUM & CHEM CORP
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