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Hydrorefining catalyst for preparing fuel oil from coal tar, preparation method and application method thereof

A hydrofining and catalyst technology, applied in the direction of catalyst activation/preparation, chemical instruments and methods, metal/metal oxide/metal hydroxide catalysts, etc., can solve the problems of easy deactivation, general activity, hydrothermal stability and Insufficient high temperature resistance and other problems, to achieve the effect of improving quality, long service life and good operation stability

Active Publication Date: 2011-05-25
INST OF PROCESS ENG CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to propose a new special hydrogenation catalyst for coal tar and its preparation and application method in view of the problems existing in the existing coal tar hydrogenation catalyst, and to achieve high activity by strictly controlling the catalyst preparation process conditions Purpose of High Stability Coal Tar Hydrogenation Catalyst
The catalyst of the present invention overcomes the disadvantages of the existing commodity petroleum distillate hydrotreating catalysts when it is used for coal tar hydrogenation, such as general activity, weak hydrothermal stability and high temperature resistance, easy deactivation, etc., and it has the advantages of being suitable for processing coal tar components High specific surface area, large pore size, high pore volume and suitable active center. At the same time, it has good mechanical strength and hydrothermal properties. It can effectively convert coal tar or coal tar fractions when used in combination with downstream hydrocracking catalysts. for high quality fuel

Method used

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  • Hydrorefining catalyst for preparing fuel oil from coal tar, preparation method and application method thereof
  • Hydrorefining catalyst for preparing fuel oil from coal tar, preparation method and application method thereof
  • Hydrorefining catalyst for preparing fuel oil from coal tar, preparation method and application method thereof

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Experimental program
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Effect test

Embodiment 1

[0031] The preparation of hydrorefining catalyst F1 is as follows:

[0032] Commercially available SB aluminum hydroxide dry rubber powder 100g, add 8.4g barium nitrate fine powder, 1.1g nitric acid, 1.8g citric acid, reconcile into a wet rubber cake. The wet rubber cake is placed on a kneader, continuously sprinkled with 21.7g ammonium molybdate tetrahydrate fine powder, 22.9g cobalt nitrate hexahydrate fine powder, 1.2g cellulose, and knead evenly. Dry at 120°C for 14 hours and grind into fine powder.

[0033] Add 4g of safflower powder and a small amount of deionized water to the fine powder, and use a clover-shaped orifice plate to extrude on a screw extruder. The diameter of the extruded rod is 1.2mm, and the length is 3mm. The shaped strips were rinsed with acetic acid for 6 minutes. Dry at 110°C for 2 hours, and then bake at 490°C for 12 hours at a constant temperature of 490°C for 12 hours in an air atmosphere containing 35% molar concentration of water vapor with a...

Embodiment 2

[0040] The preparation of hydrorefining catalyst F2 is as follows:

[0041] Commercially available SB aluminum hydroxide dry rubber powder 100g, add 10g barium nitrate fine powder, 1g nitric acid, 1.2g acetic acid, 2g citric acid, reconcile into a wet rubber cake. The wet rubber cake is placed on a kneader, continuously sprinkled with 27.5g ammonium molybdate tetrahydrate fine powder, 15.9g nickel nitrate hexahydrate fine powder, 1g cellulose, and knead evenly. Dry at 120°C for 15 hours and grind into fine powder.

[0042] Add 3.2g safflower powder and a small amount of deionized water into the fine powder, and adopt clover-shaped orifice plate extrusion molding on the screw extruder. The extruded rod has a diameter of 1.5mm and a length of 3mm. The shaped strips were rinsed with acetic acid for 8 minutes. Dry at 110°C for 15 hours, and then bake at a constant temperature of 480°C for 12 hours in an air atmosphere containing 40% molar concentration of water vapor with an ai...

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PUM

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Abstract

The invention provides a hydrorefining catalyst special for new coal tar, a preparation method and an application method thereof, which are used for solving problems existing in the conventional hydrogenation catalyst for coal tar. The hydrorefining catalyst consists of active components, aids and carriers, wherein the active components refer to MoO3 and NiO or MoO3 and CoO; the aids refer to Bi2O3 and K2O; and the carriers refer to alumina and barium oxide. According to calculation by the form of an oxide, the active components, the aids and the carriers account for 15 to 35 percent, 2 to 5 percent and 60 to 83 percent of the total mass of the catalyst respectively. The catalyst is prepared by the following steps of: kneading, grinding, extruding into strips, molding, soaking, performing catalyst post-treatment and the like. New ultrasonic soaking technology is introduced, and the preparation condition of the catalyst is controlled strictly. Compared with the prior art, the catalyst has high surface physical and chemical properties, high purified atom degumming activity, high hydrogenation saturation capability, high stability and high mechanical intensity, and the quality and yield of hydrogenation product oil can be enhanced effectively.

Description

technical field [0001] The invention belongs to the technical field of producing fuel oil by hydrogenation of coal tar, and in particular relates to a hydrorefining catalyst for producing fuel oil from coal tar and a preparation and application method thereof. Background technique [0002] At present, my country's energy status is "short of oil, less gas, and rich in coal". The problem of energy supply has become a prominent problem facing my country's economic development and national security. In the case of limited petroleum resources, it is obviously of great practical and strategic significance to develop the coal chemical industry and develop deep processing technologies and products. Among coal utilization methods, coal pyrolysis can provide a variety of coal-based products, which is an effective way to clean, efficiently and rationally utilize low-rank coal resources. Coal pyrolysis oil, or coal tar, is a by-product of coal coking, dry distillation and gasification,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/88B01J37/00C10G45/08
Inventor 张锁江阚涛李春山王红岩何红兴张香平
Owner INST OF PROCESS ENG CHINESE ACAD OF SCI
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