Aluminum oxide-activated carbon composite carrier, preparation method and prepared catalyst

A technology of composite carrier and activated carbon, which is applied in the direction of metal/metal oxide/metal hydroxide catalyst, physical/chemical process catalyst, catalyst carrier, etc. High porosity, poor mechanical strength, etc., to achieve excellent hydrodesulfurization performance and optimize pore structure
CN101862684BInactive Publication Date: 2012-07-04DALIAN UNIV OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
DALIAN UNIV OF TECH
Publication Date
2012-07-04
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses an aluminum oxide-activated carbon composite carrier, a preparation method and a prepared catalyst. The carrier is characterized by having a specific surface area of 70 to 300 m<2> / g, a most probable pore diameter of 3 to 25 nm and the side compression strength of 80 to 200 N / mm; the activated carbon content of the carrier is 10 to 30 mass percent, while aluminum oxide content is 70 to 90 mass percent; and the carrier is prepared by kneading, molding and calcining aluminum oxide, activated carbon and an auxiliary material. The hydrogenation and desulfurization catalystis prepared by loading Ni-Mo or Co-Mo or Ni-W onto the carrier by an impregnation method. The carrier of the invention has a well-developed mesopore structure and high mechanical strength. The catalyst of the invention has hydrogenation and desulfurization activity higher than that of the catalyst prepared by taking the aluminum oxide and the activated carbon independently as the carriers.
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Description

technical field

[0001] The invention relates to a preparation method of an alumina-activated carbon composite carrier and a petroleum fraction hydrogenation desulfurization catalyst prepared by using the carrier. Background technique

[0002] The existence of sulfide in petroleum fractions has adverse effects on its subsequent processing and product application. The deterioration of crude oil and the increasingly stringent environmental protection regulations have lower and lower restrictions on the sulfur content in fuels, making the traditional hydrodesulfurization process face new challenges. Using catalysts with high hydrodesulfurization activity to deeply hydrotreat distillate oil is an effective way to solve the above problems.

[0003] The performance of hydrodesulfurization catalysts largely depends on the support, and the interaction between active components and supports is one of the important factors affecting the performance of hydrodesulfurization catalysts. ...

Claims

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