A kind of sulfurized state hydrogenation catalyst and its preparation method and application

A technology of hydrogenation catalyst and sulfide state, which is applied in the field of preparation of sulfide state hydrogenation catalyst, and can solve the problem of low sulfide degree

Active Publication Date: 2017-07-25
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0014] The object of the present invention is to overcome the defect that the degree of sulfidation obtained by sulfurizing the hydrogenation catalyst by the existing method is low, and to provide a method for preparing a sulfided hydrogenation catalyst capable of increasing the degree of sulfidation, obtained by the method Sulfide state hydrogenation catalyst and the application of said sulfide state hydrogenation catalyst in hydrodesulfurization reaction and / or hydrodearomatization reaction

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  • A kind of sulfurized state hydrogenation catalyst and its preparation method and application

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preparation example Construction

[0024] The preparation method of the sulfurized hydrogenation catalyst provided by the present invention includes the following steps:

[0025] (1) Preparation of an oxidation state hydrogenation catalyst, the oxidation state hydrogenation catalyst comprising a carrier and a nitrogen-containing organic substance and an active metal oxide supported on the carrier, the nitrogen-containing organic substance having at least one at 200-400°C Exothermic peak

[0026] (2) In the presence of a sulfurizing medium, the temperature of the oxidation state hydrogenation catalyst is sequentially increased from room temperature at a rate of 1-20°C / h to each exothermic temperature of the nitrogen-containing organic matter between 200-400°C Constant temperature vulcanization at the temperature corresponding to the peak-to-peak value for 1-5 hours, and then the temperature at a rate of 1-20°C / h from the highest exothermic peak-to-peak value of the nitrogen-containing organic matter between 200-400°C...

Embodiment 1

[0045] This embodiment is used to illustrate the sulfided hydrogenation catalyst provided by the present invention and its preparation method.

[0046] The oxidation state hydrogenation catalyst A1 is prepared according to a conventional method, which includes an alumina carrier and NiO and MoO supported on the alumina carrier 3 Active metal components and nitrilotriacetic acid, wherein the molar ratio of carbon atoms to Ni metal atoms in the oxidation state hydrogenation catalyst A1 is 6:1, based on the total weight of the oxidation state hydrogenation catalyst, NiO and MoO 3 The mass content of are 3% and 15% respectively. The oxidation state hydrogenation catalyst A1 has undergone temperature-programmed oxidation method (the temperature rise rate is 10°C / min, the same below), and it can decompose and release CO at 230°C-295°C and 300°C-400°C. 2 , CO 2 The temperature corresponding to the peak release amount is 230℃, 290℃ and 370℃ respectively. The oxidation state hydrogenation ...

Embodiment 2

[0054] This embodiment is used to illustrate the sulfided hydrogenation catalyst provided by the present invention and its preparation method.

[0055] The oxidation state hydrogenation catalyst B1 is prepared according to the conventional method, which includes an alumina support and NiO and WO supported on the alumina support 3 Active metal components and ethylenediaminetetraacetic acid, wherein the molar ratio of carbon atoms to Ni metal atoms in the oxidation state hydrogenation catalyst B1 is 8:1, based on the total weight of the oxidation state hydrogenation catalyst, NiO and WO 3 The mass content of are respectively 2.5% and 20.5%. Oxidation state hydrogenation catalyst B1 can be decomposed to release CO between 200℃-295℃ and 300℃-400℃ through temperature programmed oxidation method. 2 , CO 2 The temperature corresponding to the peak release amount is 240℃, 270℃ and 380℃ respectively. The oxidation state hydrogenation catalyst B1 is vulcanized by dry vulcanization, and the ...

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Abstract

The invention provides a vulcanized hydrogenation catalyst, a preparation method therefor and application thereof. The preparation method for the vulcanized hydrogenation catalyst comprises the following steps: (1) preparing an oxidized hydrogenation catalyst, wherein the oxidized hydrogenation catalyst comprises a carrier, and a nitrogenous organic compound and an active metal oxide loaded on the carrier; the nitrogenous organic compound has at least one exothermic peak at 200-400 DEG C; and (2)in the presence of a curing media, successively increasing the temperature of the oxidized hydrogenation catalyst from a room temperature to the temperature corresponding to each exothermic peak of the organic alcohol compound at 200-400 DEG C at a rate of 1-20 DEG C / h; performing a constant temperature vulcanization for 1-5 hours; and finally increasing the temperature by 20-80 DEG C from the temperature corresponding to the highest temperature exothermic peak of a nitrogenous organic compound at 200-400 DEG C at the rate of 1-20 DEG C / h; and performing the constant temperature vulcanization for 1-5 hours. By adopting the preparation method provided by the invention, the degree of vulcanization of metals in the catalyst and the proportion of a two-layer-packed structure are improved, thus facilitating the improvement of the catalyst on hydrodesulfurization and hydrodearomatization activity.

Description

Technical field [0001] The invention relates to a preparation method of a sulfurized hydrogenation catalyst, a sulfurized hydrogenation catalyst obtained by the method, and an application of the sulfurized hydrogenation catalyst in a hydrodesulfurization reaction and / or a hydrodearomatization reaction. Background technique [0002] Hydrotreating is a pillar technology in the modern oil refining industry. It plays an important role in producing clean fuels, improving product quality, making full use of petroleum resources and raw material pretreatment. With the development of economy, environmental protection and society, oil refineries have continuously put forward higher requirements for the activity and stability of hydroprocessing catalysts, and the activity and selectivity of hydrogenation catalysts need to be continuously improved. Among them, the activity of hydrodesulfurization and hydrodearomatics is an important indicator to measure the performance of hydrogenation catal...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J37/20B01J23/883B01J23/888B01J23/882C10G45/08
Inventor 陈文斌龙湘云李明丰刘学芬赵新强刘清河王奎聂红丁石
Owner CHINA PETROLEUM & CHEM CORP
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