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Novel crude benzene hydrofining desulfurization and denitrification catalyst and preparation method thereof

A denitrification catalyst and hydrorefining technology, which is applied in the directions of aromatics hydrorefining, chemical instruments and methods, physical/chemical process catalysts, etc. Long life and the effect of preventing adsorption competition

Pending Publication Date: 2021-08-03
平顶山市拓青科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The technical problem to be solved by the present invention is to provide a novel crude benzene hydrorefining desulfurization and denitrogenation catalyst and its preparation method to solve the existing technology of using crude benzene hydrorefining desulfurization and denitrogenation catalysts with high cost, low catalyst activity and service life question

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Example 1: A new catalyst for desulfurization and denitrogenation by hydrotreating crude benzene

[0028] 15.97gCo(NO 3 ) 2 ·6H 2 O was dissolved in 100g deionized water, recorded as liquid A; 4.05g NH 4 h 2 PO 4 Dissolved in 100g deionized water, recorded as liquid B; 19.94g (NH 4 ) 6 Mo 7 o 24 ·H 2 O is heated and dissolved in 100g deionized water, which is recorded as liquid C; 6.31gCe(NO 3 ) 3 ·6H 2 Dissolve O in 100g deionized water, record it as liquid D; weigh Al 2 o 3 Put the powder into a beaker, gradually drop liquid A into Al 2 o 3 In the powder, cover it with plastic wrap, let it stand for 3-6 hours, put it in an oven, dry it at 110°C for 6-10 hours, and then heat it up to 350-500°C at a rate of 3.0°C / min and bake it for 2-5 hours. Cool down to room temperature, grind to 100-400 mesh powder, gradually drop into liquid B, cover with plastic wrap, let it stand for 3-6 hours, put it in an oven, dry at 110°C for 3-6 hours, and then dry it at 3.0°...

Embodiment 2

[0029] Example 2: A new catalyst for desulfurization and denitrogenation by hydrotreating crude benzene

[0030] 15.97gCo(NO 3 ) 2 ·6H 2 O was dissolved in 100g deionized water, recorded as liquid A; 4.05g NH 4 h 2 PO 4 Dissolved in 100g deionized water, recorded as liquid B; 19.94g (NH 4 ) 6 Mo 7 o 24 ·H 2 O is heated and dissolved in 100g deionized water, which is recorded as liquid C; 6.65gLa(NO 3 ) 2 ·6H 2 Dissolve O in 100g deionized water, record it as liquid D; weigh Al 2 o 3 Put the powder into a beaker, gradually drop liquid A into Al 2 o 3 In the powder, cover it with plastic wrap, let it stand for 3 hours, put it in an oven, dry it at 110°C for 4 hours, then heat it up to 460°C at a rate of 3.0°C / min and bake it for 2 hours, cool it down to room temperature, and crush it to 100~ 400-mesh powder, gradually drop into liquid B, cover with plastic wrap, let it stand for 3 hours, put it in an oven, dry it at 110°C for 4 hours, then heat it up to 460°C at ...

Embodiment 3

[0031] Example 3: A new catalyst for desulfurization and denitrogenation by hydrotreating crude benzene

[0032] 15.30gCo(NO 3 ) 2 ·6H 2 O was dissolved in 100g deionized water, recorded as liquid A; 4.05g NH 4 h 2 PO 4 Dissolved in 100g deionized water, recorded as liquid B; 18.42g (NH 4 ) 6 Mo 7 o 24 ·H 2 O is heated and dissolved in 100g deionized water, which is recorded as liquid C; 6.65gLa(NO 3 ) 2 ·6H 2 Dissolve O in 100g deionized water, record it as liquid D; weigh Al 2 o 3 Put the powder into a beaker, gradually drop liquid A into Al 2 o 3 In the powder, cover it with plastic wrap, let it stand for 3 hours, put it in an oven, dry it at 110°C for 4 hours, then heat it up to 460°C at a rate of 3.0°C / min and bake it for 2 hours, cool it down to room temperature, and crush it to 100~ 400-mesh powder, gradually drop into liquid B, cover with plastic wrap, let it stand for 3 hours, put it in an oven, dry it at 110°C for 4 hours, then heat it up to 460°C at ...

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PUM

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Abstract

The invention discloses a novel crude benzene hydrofining desulfurization and denitrification catalyst which comprises the following components in percentage by mass: Al2O3: CoO: P2O5: MoO3: X: Y = A: B: C: D: E: F, and the ratio of B: A is 0.05-30%, the ratio of C: A is 0.05-30%, the ratio of D: A is 0.01-20%, the ratio of E: A is 0.01-20%, and the ratio of F: A is 0.01-20%. The invention aims to solve the technical problems of high cost, low catalyst activity and low service life of the existing desulfurization and denitrification catalyst by using crude benzene hydrofining.

Description

technical field [0001] The invention relates to the technical field of catalyst preparation, in particular to a novel crude benzene hydrorefining desulfurization and denitrogenation catalyst and a preparation method thereof. Background technique [0002] Crude benzene is a by-product of the coking process, because coke is used for smelting iron and steel, and crude benzene (coking light oil) is a by-product of coal coking. Crude benzene can be refined to obtain important chemical raw materials such as benzene, toluene, and xylene. The content of benzene, toluene, and xylene in crude benzene is about 90% or more (70-80% for benzene; 10-15% for toluene; xylene, Styrene and ethylbenzene 3-5%), crude benzene contains heterocyclic compounds such as pyridine (0.25%) and thiophene (0.3-0.6%), making the sulfur and nitrogen impurities as high as several thousand, even more than 10000PPm, and contains It is very impractical to separate these impurities (pyridine, thiophene, styrene)...

Claims

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Application Information

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IPC IPC(8): B01J27/19B01J35/02C10G45/04C10G45/08C10G45/46C10G45/50
CPCB01J27/19C10G45/04C10G45/08C10G45/46C10G45/50C10G2300/202C10G2300/1096B01J35/40
Inventor 刘国良
Owner 平顶山市拓青科技有限公司
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