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Hydrodenitrogenation catalyst and application thereof

A hydrogenation denitrogenation and catalyst technology, which is applied in the direction of catalyst carrier, physical/chemical process catalyst, metal/metal oxide/metal hydroxide catalyst, etc., can solve the problems of single function and poor metal capacity, and achieve increase The effect of deposition volume, large orifice and good channel penetration

Active Publication Date: 2010-11-24
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] Aiming at the shortcomings of single function and poor metal capacity of the hydrodenitrogenation catalyst in the prior art, the present invention provides a hydrodenitrogenation catalyst and its applications, especially in residual oil hydrotreating processes

Method used

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  • Hydrodenitrogenation catalyst and application thereof
  • Hydrodenitrogenation catalyst and application thereof
  • Hydrodenitrogenation catalyst and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] Under stirring conditions, 375g of aluminum nitrate nonahydrate and 90g of urea were mixed and heated to 100°C, and added to a mixture of 12g of polyisobutylene maleate triethanolamine maleate and 33g of 150HVI neutral oil at the same temperature to form supersolubilizing micelles , and then reacted at 100°C for 3 hours to obtain nano-aluminum hydroxide gel. Wash three times with 200ml of distilled water, and dry at 120°C for 10 hours. Mix 70g of nano aluminum hydroxide gel dry powder with 30g of binder pseudoboehmite evenly, mix 1.6g of dilute nitric acid (mass concentration 17%), 160g of water and 10g of co-solvent, and then add it to the nanometer hydrogen Alumina gel is dried in the mixture of powder and binder, and then molded in the extruder, and the pressure is controlled at 10MPa. The molded product was dried at 100°C for 10 hours, calcined at 240°C for 3 hours, and then calcined at 850°C for 4 hours with a heating rate of 5°C / min to obtain the alumina carrier ...

Embodiment 2

[0058]Mix 150g of second-line dewaxed oil and 250g of SP-65, heat to dissolve at 90°C, and mix well; heat 750g of aluminum nitrate nonahydrate to 80°C to melt, slowly add to the above mixture, and mix for 20 minutes to form a uniform supersolubilizing colloid. 310 g of saturated ammonia water at 20° C. was added dropwise and aged for 5 hours to obtain a nano-aluminum hydroxide gel. Wash three times with 200ml of distilled water, and dry at 120°C for 10 hours. Mix 80g of nano-aluminum hydroxide gel dry powder with 20g of binder pseudo-boehmite; 2.1g of dilute nitric acid (mass concentration 17%), 23g of water and 5g of cosolvent ethanol are mixed, and then Molding in middle, control pressure at 25MPa. The molded product was dried at 100°C for 6 hours, calcined at 240°C for 6 hours, and calcined at 750°C for 8 hours, wherein the heating rate was 5°C / min to obtain the alumina carrier A2 of the present invention.

[0059] The obtained alumina carrier A2 is impregnated with activ...

Embodiment 3

[0061] Mix 20g of the fourth-line oil, 30g of the first-line oil, 14.45g of the second-line wax paste, and 1.01g of SP-80, heat to dissolve at 100°C, and mix well; heat 750g of aluminum nitrate nonahydrate to 100°C to melt, and slowly add it to the above mixture , mixed for 30 minutes to form a uniform supersolubilized colloid, then dropwise added 150g of sodium silicate (the weight content of silicon dioxide was 30%), and mixed uniformly. In a closed reactor, add 110g of liquid ammonia at 50°C to the supersolubilizing colloid, react at 180°C for 2 hours, wash with water until Na is less than 0.05, and dry at 100°C for 10 hours to obtain nano-silicon hydroxide-aluminum hydroxide gel glue. Subsequent steps and conditions were the same as those in Example 2 to obtain silicon-containing alumina carrier A3.

[0062] The obtained silicon-containing alumina carrier A3 is impregnated with active metals Mo and Ni, then dried at 120° C. for 3 hours, and calcined at 500° C. for 5 hours...

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Abstract

The invention discloses a hydrodenitrogenation catalyst and application thereof. The catalyst has the characteristics of large pore volume, large pore diameter, reasonable pore size distribution, high porosity, large outer surface orifice and high pore canal penetrability. The catalyst is applied to a residual oil fixed bed hydrogenation method so that the nitrogen impurity content of treated oil is less than 100 mu g / g, separated metal can be uniformly deposited on an entire catalyst bed layer, long-period running is kept, very high denitrogenation rate is achieved and treated residual oil can be fed into a hydrogen cracking device.

Description

technical field [0001] The invention relates to a hydrodenitrogenation catalyst and its application, in particular to a hydrodenitrogenation catalyst with a large pore volume and high porosity and its application in residual oil hydrotreating. Background technique [0002] As an important process of petroleum refining, hydrodenitrogenation has always been paid attention to by people. However, in recent years, the quality of petroleum has become heavier and worse, while the requirements for product quality have become more stringent, and the requirements for feed materials in subsequent processes have become more and more stringent. In addition, since mankind entered the 21st century, people's awareness of environmental protection has been continuously enhanced, and environmental protection legislation has become more and more stringent. x , SO x And the restrictions on aromatics content are more stringent. In 2010, the nitrogen content was required to be less than 10 μg / g...

Claims

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Application Information

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IPC IPC(8): B01J35/10B01J32/00B01J23/883B01J23/882B01J21/04C10G45/04C10G45/08
Inventor 王鼎聪刘纪端
Owner CHINA PETROLEUM & CHEM CORP
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