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Unsupported catalyst and preparation method thereof

A catalyst and non-supported technology, applied in refining to remove heteroatoms, etc., can solve the problems of low metal recovery rate, small specific surface area of ​​pore structure of mixed metal composition, and increased catalyst cost

Active Publication Date: 2008-09-03
BC P INC CHINA NAT PETROLEUM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the catalysts prepared by these methods can improve hydrogenation activity, the disadvantages of these methods are mainly: (1) hydrothermal synthesis or co-precipitation will cause part of the metal loss, and the metal recovery rate is low; (2) the obtained The specific surface area of ​​the pore structure of the mixed metal composition is small, and the metal utilization rate of the catalyst is not high, resulting in an increase in the cost of the catalyst

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] This example illustrates the preparation method of the catalyst of the present invention.

[0021] Weigh 14.2 grams of molybdenum trioxide (0.1 moles of Mo), 25.0 grams of tungstic acid (0.1 moles of W), 41.5 grams of basic nickel carbonate (0.3 moles of Ni), and add 161.4 grams of urea into a three-necked flask, and add a small amount of Water to make it evenly dispersed, put it in an oil bath at 130°C and stir for 4 hours, pour the reactant into a tray to cool while it is hot, crush the cooled product with a pulverizer, and dry it in an oven at 150°C. Excess urea breaks down. Weigh pseudo-boehmite with 30% weight of solid powder and add 10% dilute nitric acid solution to make aluminum sol, add the solid powder to the aluminum sol, and make a paste, knead and extrude to make a diameter of 1.6mm The strips were dried under an infrared lamp for 5 hours, then dried in an oven at 110°C for 10 hours, and calcined in a muffle furnace at 400°C for 5 hours to obtain unsupport...

Embodiment 2

[0023] This example illustrates the preparation method of the catalyst of the present invention.

[0024]Get the ammonium molybdate (0.1 mole Mo) of 17.6 grams, the ammonium metatungstate (0.1 mole W) of 26.4 grams, the basic nickel carbonate (0.3 mole Ni) of 41.5 grams, 171.0 grams of urea join in the there-necked flask, and add A small amount of water to disperse it evenly, put it in an oil bath at 130°C and stir for 4 hours, pour the reactant into a tray to cool while it is hot, pulverize the cooled product with a pulverizer, and dry it in an oven at 150°C. Decompose excess urea. Weigh the pseudo-boehmite with 30% weight of solid powder and add dilute nitric acid solution with a concentration of 10wt% to make aluminum sol, add the solid powder to the aluminum sol, and make a paste, knead and extrude to make a diameter The 1.6mm strips were dried under an infrared lamp for 5 hours, dried in an oven at 110°C for 10 hours, and calcined in a muffle furnace at 400°C for 5 hours...

Embodiment 3

[0026] This example illustrates the preparation method of the catalyst of the present invention.

[0027] Weigh 14.2 grams of molybdenum trioxide (0.1 moles of Mo), 25.0 grams of tungstic acid (0.1 moles of W), 27.6 grams of basic nickel carbonate (0.2 moles of Ni), and 133.6 grams of urea into a three-necked flask, and add a small amount of Water to make it evenly dispersed, put it in an oil bath at 130°C and stir for 4 hours, pour the reactant into a tray to cool while it is hot, crush the cooled product with a pulverizer, and dry it in an oven at 150°C. Excess urea breaks down. Weigh the pseudo-boehmite with 30% weight of solid powder and add dilute nitric acid solution with a concentration of 10wt% to make aluminum sol, add the solid powder to the aluminum sol, and make a paste, knead and extrude to make a diameter The 1.6mm strips were dried under an infrared lamp for 5 hours, dried in an oven at 110°C for 10 hours, and calcined in a muffle furnace at 400°C for 5 hours t...

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Abstract

Disclosed are a unsupported catalyst for deeply hydrofinishing of intermediate distillate and method for making the same, particularly a catalyst particle with nanometer pore and relatively high specific surface area obtained by urea melt reaction. The most outstanding technical feature of the invention is that by adopting synthesis technique of urea melt reaction, metal is free of loss, prepared metal composite has nanometer pore and relatively high specific surface area, and could provide abundant catalytic hydrogenation activity bits, and the inventive catalyst has much higher catalytic hydrogenation activity comparing with conventional supported catalyst because of this. Meanwhile, the invention is simple in process, easy to operate, fast in reaction, suitable for industrial production.

Description

technical field [0001] The invention relates to a non-loaded catalyst for ultra-deep hydrotreating of middle distillate oil and its preparation. It belongs to the improvement of the preparation method of hydrogenation catalyst. Specifically, through the melting reaction of urea, a catalyst particle with nanopores and high specific surface area is obtained, and then extruded to obtain a catalyst that is different from the traditional supported catalyst. The so-called unsupported catalysts, compared with traditional supported catalysts, unsupported catalysts have higher catalytic activity. Background technique [0002] In recent years, the trend of poor quality of crude oil has become increasingly obvious worldwide, and the content of sulfur, nitrogen and aromatics in petroleum products has been increasing day by day, and the contradiction between increasingly stringent environmental protection requirements and this reality has become more and more acute. More than one-third ...

Claims

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Application Information

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IPC IPC(8): C10G45/06
Inventor 刘晨光殷长龙赵瑞玉赵会吉柳云骐邢金仙
Owner BC P INC CHINA NAT PETROLEUM CORP
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