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Catalyst for cracking tar hydrotreating

A technology for hydrofining and pyrolysis of tar, which is applied in the direction of molecular sieve catalysts, physical/chemical process catalysts, refined hydrocarbon oil, etc., and can solve the problems of low desulfurization rate, denitrification rate and low fuel oil yield

Active Publication Date: 2021-12-28
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] One of the technical problems to be solved by the present invention is the problem of low desulfurization rate, denitrogenation rate and fuel oil yield in the prior art, and a catalyst for cracking tar hydrotreating is provided, which has desulfurization rate, denitrogenation rate and fuel oil yield Advantages of high yield

Method used

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  • Catalyst for cracking tar hydrotreating

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] 1. Vector preparation

[0056] Mix 100 parts by weight of commercially available active aluminum hydroxide dry rubber powder, 8 parts by weight of mordenite molecular sieve former powder, 6 parts by weight of 1:1 nitric acid, 1.9 parts by weight of citric acid, 4.5 parts by weight of kale powder and 48 parts by weight of distilled water. uniform, extruded, dried at 110°C for 10 hours, and calcined in an air atmosphere at 470°C for 5 hours to obtain a cylindrical carrier with a diameter of 1.3 mm and a length of 3 mm.

[0057] 2. Catalyst preparation

[0058] Mix 1L of cylindrical carrier with 900ml cobalt nitrate-ammonium molybdate-ammonium metatungstate mixed aqueous solution (containing 8 grams of Co, 10 grams of Mo and 6 grams of W), dry at 110°C for 8 hours, and calcinate at 450°C for 5 hours in an air atmosphere to obtain catalyst precursor.

[0059] According to ICP analysis, the catalyst composition is: Co, 8g / L; Mo, 10g / L; W, 6g / L.

[0060] 3. Catalyst evalua...

Embodiment 2

[0065] 1. Vector preparation

[0066] Mix 100 parts by weight of commercially available active aluminum hydroxide dry rubber powder, 8 parts by weight of mordenite molecular sieve former powder, 6 parts by weight of 1:1 nitric acid, 1.9 parts by weight of citric acid, 4.5 parts by weight of kale powder and 48 parts by weight of distilled water. uniform, extruded, dried at 110°C for 10 hours, and calcined in an air atmosphere at 470°C for 5 hours to obtain a cylindrical carrier with a diameter of 1.3 mm and a length of 3 mm.

[0067] 2. Catalyst preparation

[0068] Mix 1L of cylindrical carrier with 900ml cobalt nitrate-ammonium molybdate-ammonium metatungstate mixed aqueous solution (containing 8 grams of Co, 10 grams of Mo and 6 grams of W), dry at 110°C for 8 hours, and calcinate at 450°C for 5 hours in an air atmosphere to obtain catalyst precursor.

[0069] The catalyst precursor was mixed with 900ml of bismuth trichloride aqueous solution (containing 4g of Bi), dried a...

Embodiment 3

[0076] 1. Vector preparation

[0077] Mix 100 parts by weight of commercially available active aluminum hydroxide dry rubber powder, 8 parts by weight of mordenite molecular sieve former powder, 6 parts by weight of 1:1 nitric acid, 1.9 parts by weight of citric acid, 4.5 parts by weight of kale powder and 48 parts by weight of distilled water. uniform, extruded, dried at 110°C for 10 hours, and calcined in an air atmosphere at 470°C for 5 hours to obtain a cylindrical carrier with a diameter of 1.3 mm and a length of 3 mm.

[0078] 2. Catalyst preparation

[0079] Mix 1L of cylindrical carrier with 900ml cobalt nitrate-ammonium molybdate-ammonium metatungstate mixed aqueous solution (containing 8 grams of Co, 10 grams of Mo and 6 grams of W), dry at 110°C for 8 hours, and calcinate at 450°C for 5 hours in an air atmosphere to obtain catalyst precursor.

[0080] The catalyst precursor was mixed with 900ml of copper nitrate aqueous solution (containing 4g of Cu), dried at 110...

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Abstract

The invention relates to a catalyst for hydrofining pyrolysis tar, which mainly solves the problems of low desulfurization rate, denitrogenation rate and low fuel oil yield in the prior art. The present invention is by adopting the catalyzer of pyrolysis tar hydrotreating, and described catalyzer comprises active component, auxiliary agent and support; Described active component comprises any one selected from Co, Mo and W, and auxiliary agent comprises the technology of Sb The scheme has achieved good results and can be used in the hydrogenation of coal tar and / or ethylene tar to produce fuel oil.

Description

technical field [0001] The invention belongs to the technical field of tar hydrogenation to produce fuel oil, and in particular relates to a catalyst for pyrolysis tar hydrofining. Background technique [0002] The problem of energy supply has become a prominent problem facing my country's economic development and security. In the case of limited oil resources, expanding the sources of energy and fuel, and developing deep processing technologies and products have serious and strategic significance. Coal tar is a by-product of coal coking, carbonization and gasification processes, and its domestic production exceeds 10 million tons. At present, part of the processing and utilization of domestic coal tar is used to extract chemicals such as naphthol. The other part is burned as inferior fuel oil after simple treatment, producing a large amount of sewage or NO x , SO x and other air pollutants. The hydrogenation process can complete the deep removal of heteroatoms such as ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J29/26C10G45/12
CPCB01J29/26C10G45/12B01J2229/18C10G2300/202
Inventor 韩亚梅刘仲能钱斌刘师前朱瑾
Owner CHINA PETROLEUM & CHEM CORP