Method of preparation of hydro-upgrading catalyst

A hydrogenation modification and catalyst technology, which is applied in the direction of catalyst carrier, molecular sieve catalyst, physical/chemical process catalyst, etc., to achieve reasonable acidity and acidity distribution, improve cetane number, and improve performance

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 the soluble magnesium-containing compound into solution A, wherein the concentration of the magnesium-containing compound is 0.1g / 100mL~32g / 100mL in terms of magnesium oxide;

[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 magnesium-containing compound and water-soluble silicone oil to prepare solution C, wherein the concentration of magnesium-containing compound is 0.1g / 100mL~16g / 100mL in terms of magnesium oxide, and the concentration of water-soluble silicone oil is 0.1g / 100mL~ in terms of silicon oxide 10g / 100mL;

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

Embodiment 1

[0044] Weigh 13.9 g of magnesium nitrate, add an appropriate amount of deionized water to dissolve, and make the volume 105 mL to prepare solution A1. Weigh 16.5 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, and 230°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 deionized water ...

Embodiment 2

[0048] Weigh 6.7g of magnesium acetate and 6.8g of water-soluble silicone oil B, add appropriate amount of deionized water to dissolve, make the volume 72mL, and prepare solution C2.

[0049] Take 100g of hydrogenation modification catalyst carrier Z1, spray 72mL of solution C2 evenly on the carrier Z1, after curing for 10 hours, heat-treat at 100°C for 2h, then heat-treat at 230°C for 2h to obtain the modified carrier S3.

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PUM

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Abstract

The invention discloses a method of preparation of a hydro-upgrading catalyst. The method comprises the following steps: a modified hydro-upgrading catalyst carrier is prepared, an immersion method is used for loading a hydrogenation active metal component, drying and calcinating are carried out, in order to obtain the hydro-upgrading catalyst, wherein the preparation of the modified hydro-upgrading catalyst carrier comprises the following steps: the hydro-upgrading catalyst carrier is introduced into water-soluble silicone oil and a soluble magnesium containing compound in order to at the same time, heat treatment is carried out, and the modified hydro-upgrading catalyst carrier is prepared. The method can be used for adjusting distribution of acid site and hydrogenation activity site, so that the sites are mutually and coordinately effected, combination properties of the catalyst are improved, and the method is especially suitable for the hydro-upgrading catalyst for diesel oil.

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): B01J29/80B01J29/78B01J32/00
Inventor 杨占林唐兆吉姜虹温德荣孙立刚王平王继锋彭绍忠
Owner CHINA PETROLEUM & CHEM CORP
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