Regeneration method for coked iridium-containing catalyst

A catalyst and catalyst bed technology, applied in chemical instruments and methods, physical/chemical process catalysts, bulk chemical production, etc., can solve problems such as commercial restrictions, low space velocity, and difficulty in redispersion, and reduce operating harshness The effect of speed, recovery of reaction performance, and simplification of operation steps
CN103203246BActive Publication Date: 2015-01-14CHINA PETROLEUM & CHEM CORP +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHINA PETROLEUM & CHEM CORP
Publication Date
2015-01-14

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Abstract

The invention relates to a regeneration method for a coked iridium-containing catalyst. The regeneration method comprises the following steps of (1) two-stage scorching the coked iridium-containing catalyst with an oxygen-containing gas; and (2) performing water and chlorine balance treatment on the scorched catalyst, then performing water and chlorine activating treatment and the reducing. The method is simple in operations, and can completely recover performance of the coked catalyst.
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Description

technical field

[0001] The invention relates to a method for regenerating a carbon-deposited catalyst, in particular to a method for regenerating a carbon-deposited iridium-containing catalyst. Background technique

[0002] Heavy aromatics generally refer to catalytic reforming, disproportionation and isomerization reactions to generate oil and C contained in ethylene cracking hydrogenated gasoline 9 -C 16 mono- and bicycloalkylaromatics. For a long time, heavy aromatic resources have not been rationally and fully utilized, except for a small amount used as solvent and extraction of C 9 、C 10 Except for monomeric aromatics, they are generally directly blended into gasoline pools as fuel. However, it is not advisable to directly use heavy aromatics as fuels from both economic and environmental point of view. On the one hand, heavy aromatics can be converted into light aromatics such as BTX; on the other hand, from the perspective of environmental protection, it has been ...

Claims

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