Selectivity hydrodeolefin catalyst used for continuously reforming gasoline and preparation method thereof

A technology for reforming gasoline and catalysts, applied in refining to remove heteroatoms, etc., can solve problems such as not being able to meet long-term operation and short service life of catalysts
CN101260320AInactive Publication Date: 2008-09-10BC P INC CHINA NAT PETROLEUM CORP +1
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
BC P INC CHINA NAT PETROLEUM CORP
Publication Date
2008-09-10
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a catalyst for selective hydrogenation of olefin in reformate, belonging to the improvement of a hydrofinishing catalyst of petroleum hydrocarbon products, in particular, a hydrofinishing catalyst for selective hydrogenation of olefin in reformate. The invention has the characteristics that precious metal active components on a carrier is distributed in a form of egg shell, and has the advantages that the utilization ratio of the precious metal active component is improved and the content of the precious metal active component (1 time lower than the prior technology) and the cost of the catalyst (the precious metal occupies more than 90 percent in the manufacture cost of the load-type metal catalyst) are obviously reduced on one hand, and the activity of aromatic hydrogenation is obviously reduced, the selectivity of olefin hydrogenation is improved and the loss of the aromatic hydrogenation is reduced on the other hand.
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Description

technical field

[0001] The invention relates to a catalyst for selective hydrogenation of gasoline for continuous reforming and a preparation method thereof. The method belongs to the improvement of hydrofinishing catalysts for petroleum hydrocarbon products, specifically, it is mainly used for selective hydrogenation of gasoline for continuous reforming. Hydrofinishing catalysts for hydrodeolefins. Background technique

[0002] The main function of the catalyst for catalytic continuous reforming gasoline selective hydrodealkenization is to selectively hydrodealkene the reformed gasoline in the state of hydrogenation, and realize deep deolefination under the condition that aromatics are not saturated by hydrogenation. Hydrogen removes the olefins therein. After the naphtha fraction is catalytically reformed, the resulting oil is rich in aromatics and solvent oil fractions, and also contains a small amount of olefins. For reforming units producing chemical-grade BTX aromati...

Claims

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