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Preparation method of novel hydro-desulfurization catalyst

A hydrodesulfurization and catalyst technology, applied in the field of desulfurization, can solve the problem of low overall strength of hydrodesulfurization catalysts, achieve the effects of high strength, prolong service life, and improve efficiency

Active Publication Date: 2015-02-18
SHENYANG SANJUKAITE CATALYST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is the technical problem that the hydrodesulfurization catalyst prepared in the prior art has a low overall strength of the hydrodesulfurization catalyst due to the low strength of the carrier, and then provides a method that can improve the strength of the carrier and further Preparation method of novel hydrodesulfurization catalyst for improving overall strength of hydrodesulfurization catalyst

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] (1) Take by weighing 200g aluminum oxide, 78.4g magnesia, mix both;

[0032] (2) 125 g of 5% hydrochloric acid solution is prepared and added to the mixture of step (1), and stirred evenly to make it into a slurry;

[0033] (3) the slurry obtained in the step (2) was neutralized for 2 hours with a 5% potassium hydroxide solution by mass percentage;

[0034] (4) Filter the product obtained in step (3), wash the filter cake, dry at 170°C for 2 hours, and roast at 450°C for 6 hours;

[0035] (5) Take by weighing 60g nickel oxide, 180g CMC and join in the product in step (4), stir and mix;

[0036] (6) kneading and molding the mixture in step (5) to obtain a molding;

[0037] (7) Put the molded product obtained in step (6) into an oven, dry at 160°C for 2 hours, and then bake at 450°C for 5 hours to obtain the hydrodesulfurization catalyst 1#.

Embodiment 2

[0039] (1) Take by weighing 200g aluminum oxide, 49g magnesium oxide, mix both;

[0040] (2) 125 g of 5% hydrochloric acid solution is prepared and added to the mixture of step (1), and stirred evenly to make it into a slurry;

[0041] (3) the slurry obtained in the step (2) was neutralized for 2 hours with a 5% potassium hydroxide solution by mass percent;

[0042] (4) Filter the product obtained in step (3), wash the filter cake, dry at 150°C for 2 hours, and roast at 460°C for 4 hours;

[0043] (5) Take by weighing 60g nickel oxide, 180g CMC and join in the product in step (4), stir and mix;

[0044] (6) kneading and molding the mixture in step (5) to obtain a molding;

[0045] (7) Put the molded product obtained in step (6) into an oven, dry at 100°C for 2 hours, and then bake at 460°C for 4 hours to obtain the hydrodesulfurization catalyst 2#.

Embodiment 3

[0047] (1) Take by weighing 200g alumina waste agent, 58g magnesium hydroxide, mix both;

[0048] (2) 130 g of nitric acid solution 130 g is added to the mixture of step (1) in the preparation mass percentage, and it is evenly stirred to make it into a slurry;

[0049] (3) neutralizing the slurry obtained in step (2) with 8% sodium hydroxide solution for 2 hours by mass percent;

[0050] (4) Filter the product obtained in step (3), wash the filter cake, dry at 150°C for 2 hours, and roast at 550°C for 2 hours;

[0051] (5) Take by weighing 75.5g basic nickel carbonate, 45g molybdenum trioxide, 30g pore-forming agent cellulose powder, join in the product in step (4), add appropriate amount of water and stir and mix;

[0052] (6) kneading and molding the mixture in step (5) to obtain a molding;

[0053] (7) Put the molded product obtained in step (6) into an oven, dry at 100°C for 2 hours, and then bake at 500°C for 4 hours to obtain the hydrodesulfurization catalyst 3#.

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PUM

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Abstract

The invention relates to a preparation method of a novel hydro-desulfurization catalyst. The method comprises the steps that: an aluminum-containing compound is well mixed with a magnesium-containing compound; an acid solution is added into the mixture; the mixture is well mixed by stirring, such that a slurry is formed; the slurry is neutralized by using alkali liquid; the produced product is filtered; a filter cake is washed, dried, and roasted; the product, an active compound, and an additive are well mixed; and kneading and shaping are carried out, such that a shaped product is obtained; and the shaped product is dried and roasted, such that the hydro-desulfurization catalyst is obtained. With the novel hydro-desulfurization catalyst preparation method, the prepared hydro-desulfurization catalyst has high strength and long service life.

Description

technical field [0001] The invention relates to a preparation method of a novel hydrogenation desulfurization catalyst, which belongs to the technical field of desulfurization. Background technique [0002] In recent years, with the deterioration of petroleum raw materials, the content of sulfur impurities in raw materials has been increasing. Therefore, in the process of petroleum refining, the flue gas discharged into the atmosphere contains more and more SO X Harmful gas, seriously pollute the environment. With the enhancement of residents' awareness of environmental protection and the increasingly stringent emission standards of harmful gases, the requirements for clean fuel production are getting higher and higher, and the restrictions on sulfur content are becoming stricter. Therefore, various desulfurization methods have emerged as the times require. [0003] At present, the most important desulfurization method in the petroleum refining process is still hydrodesulfu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J23/755B01J23/883B01J23/888B01J32/00B01J21/10
Inventor 张楠
Owner SHENYANG SANJUKAITE CATALYST