Hydrotreating catalyst for treating low-quality oil, its preparation method and application

A catalyst and hydrofining technology, applied in catalyst activation/preparation, physical/chemical process catalyst, hydrocarbon oil treatment, etc., can solve the problems of carrier pore size distribution, affecting carrier surface acidity, carrier mechanical strength reduction, etc. Achieve the effects of good activity stability, high strength, and extended operating time
CN109304183BActive Publication Date: 2021-06-29NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI
Publication Date
2021-06-29

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Abstract

The invention discloses a hydrotreating catalyst for treating low-quality oil, which comprises a metal active component and a carrier that supports the metal active component, and the carrier is mainly formed by mixing modified graphene and alumina through extrusion and extrusion. Formed by drying and calcining, the metal active component includes metal oxides, and the metal oxides include oxides of metal elements in Group VIB and / or Group VIII; the average pore diameter of the catalyst is 30-80 nm, and the specific surface area is 100 nm. ~300m 2 / g, the crushing strength is 300N·cm ‑1 above. The invention also provides the preparation method and application of the catalyst. Compared with conventional hydrotreating catalysts, the catalyst provided by the present invention has the advantages of high strength, concentrated pore distribution, large pore volume, and large specific surface area, and has good stability to activity, and is suitable for treating inferior products with high asphaltene content. Oil.
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Description

technical field

[0001] The invention relates to the field of preparation of hydrotreating catalysts, in particular to a hydrotreating catalyst for treating low-quality oil materials and its preparation method and application. Background technique

[0002] In recent years, my country's air quality has become worse and worse, and there is an urgent need for cleaner vehicle motors to transport fuel oil; Catalytic external oil slurry, catalytic heavy cycle oil, etc. These raw materials contain high content of residual carbon and asphaltenes. In addition, more coal-based oil fixed-bed hydrogenation units have been built in recent years, and there is an urgent need to process heavier and lower-quality feedstock oils. All of the above current situations require hydrotreating catalysts that can handle lower-quality raw materials. Converted into clean and environmentally friendly light fuel oil. Current fixed bed hydrotreating catalysts can only treat feedstocks with an asphaltene c...

Claims

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