Catalyst in use for refining distillate oil through hydrogenation and preparation method

A hydrofining and catalyst technology, applied in chemical instruments and methods, metal/metal oxide/metal hydroxide catalysts, physical/chemical process catalysts, etc., can solve the problem of low catalyst activity, achieve high activity, reduce Effect of roasting step

Active Publication Date: 2005-06-15
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a new method for preparing a high-activity hydrotreating catalyst and the catalyst prepared by this method in view of the existing catalyst preparation method and the shortcomings of the low activity of the catalyst prepared by the method.

Method used

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  • Catalyst in use for refining distillate oil through hydrogenation and preparation method

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0025] Take by weighing 4000 grams of aluminum hydroxide powder (dried rubber powder produced by the Catalyst Factory of Changling Branch Company), extrude into a clover-shaped strip with a circumscribed circle diameter of 1.4 mm, dry at 120°C for 4 hours, and take 400 grams of aluminum hydroxide powder in the presence of air. Calcined at 600°C for 4 hours to obtain the carrier S 1 .

[0026] Take carrier S 1 100 grams, soaked with 87 ml of aqueous solution containing 1.9 grams of ammonium molybdate for 1 hour, dried at 120 for 4 hours, and after cooling down to room temperature, soaked with 87 ml of aqueous solution containing 18.7 grams of nickel nitrate and 55.2 grams of ammonium metatungstate for 1 hour. After drying at 120 for 4 hours, it was calcined at 450 for 4 hours to obtain catalyst C1. The content of Ni, W and Mo in the catalyst C1 was measured by X-ray fluorescence method (the same below), and the results are listed in Table 1.

example 2

[0028] Get 200 grams of dry clover-shaped strips prepared in Example 1, and bake them for 6 hours at a volume ratio of air to water vapor of 1:1.2, a gas flow rate of 2.5 cubic meters per kilogram, and a temperature of 560°C for 6 hours to obtain the carrier S 2 .

[0029] Take carrier S 2 100 grams, soaked with 87 ml of aqueous solution containing 1.9 grams of ammonium molybdate for 1 hour, dried at 120 for 4 hours, and after cooling down to room temperature, soaked with 87 ml of aqueous solution containing 18.7 grams of nickel nitrate and 55.2 grams of ammonium metatungstate for 1 hour. After drying at 120 for 4 hours, it was calcined at 450 for 4 hours to obtain catalyst C2. The contents of Ni, W and Mo in catalyst C2 are listed in Table 1.

example 3

[0033] Get 200 grams of dry clover-shaped strips prepared in Example 1, and bake them for 4 hours at a volume ratio of air to water vapor of 1:6.2, a gas flow rate of 1.6 cubic meters per kilogram hour, and a temperature of 600°C for 4 hours to obtain the carrier S 3 .

[0034] Take carrier S 3 100 grams, the carrier was impregnated with 87 ml of an aqueous solution containing 4.4 grams of ammonium molybdate for 1 hour, dried at 120 for 4 hours, and after cooling down to room temperature, impregnated with 87 ml of an aqueous solution containing 11.9 grams of nickel nitrate and 44.0 grams of ammonium metatungstate After drying for 1 hour at 120 for 4 hours, it was calcined at 350 for 4 hours to obtain catalyst C3. The contents of Ni, W and Mo in catalyst C3 are listed in Table 1.

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Abstract

A hydrorefining catalyst for fractional oil contains aluminium oxide as carrier, Mo, Ni, and W. It is prepared through dipping the carrier in the solution containing Mo compound, drying, dipping in the solution containing Ni and W compounds, drying, and calcining. Its advantages is higher hydrorefining performance.

Description

technical field [0001] The invention relates to a distillate oil hydrotreating catalyst and a preparation method thereof. Background technique [0002] In recent years, in order to meet the requirements of environmental protection on harmful gas NO in automobile exhaust X , SO X Strict restrictions on emissions have prompted the rapid development of related technologies such as hydrotreating catalysts and their preparation methods for the purpose of high-quality distillate oil. [0003] Hydrorefining catalysts are usually made of aluminum oxide supports supporting Group VIB and Group VIII metal components. In the prior art, the performance of the catalyst can be optimized and improved by changing the type and content of the active metal components, as well as the properties of the carrier and the preparation method. [0004] "Exploratory Research on New Hydrodesulfurization Catalysts, Postdoctoral Dissertation of the Academy of Petrochemical Scie...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/888C10G45/08
Inventor 王锦业刘学芬聂红石亚华李大东胡志海康小洪门卓武
Owner CHINA PETROLEUM & CHEM CORP
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