Stripping method and equipment for hydrocarbon catalytic converting catalyst

A catalytic conversion and catalyst technology, which is applied in the field of petrochemical industry, can solve the problems of difficult manufacturing and installation, complex packing structure of the stripper, etc., and achieve the effects of reducing back-mixing, improving gas-solid contact efficiency, reducing short-circuit and back-mixing
CN1136295CInactive Publication Date: 2004-01-28SINOPEC LUOYANG PETROCHEM ENG CORP +1

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SINOPEC LUOYANG PETROCHEM ENG CORP
Publication Date
2004-01-28
Estimated Expiration
Not applicable · inactive patent

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Abstract

The present invention provides one method of raising the efficiency of stripping hydrocarbon converting catalyst and its equipment. According to the present invention, catalyst particle and stripping fluid are made to counterflow through one stripper with at least two layers of stuffing. The stuffing in the stuffing layers is crossed into diamond shaped grid plate parallel to the axis of the stripper. The stripper of the present invention has high efficiency. The present invention is especially suitable for catalytic conversion process of preparing olefin, the smoke impurity content in the regenerating agent is less than 0.05 vol%, and the stripper can be reduced in volume and equipment investment obviously.
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Description

technical field

[0001] The invention belongs to the field of petrochemical industry, and relates to a catalytic conversion method and equipment for hydrocarbon raw materials, in particular to a stripping method and equipment for improving the stripping efficiency of catalytic conversion catalysts. Background technique

[0002] The traditional fluid catalytic cracking technology (FCC) is mainly used to produce gasoline, diesel and a small amount of liquefied gas. During the reaction process, coke deposits on the catalyst particles need to be burnt to regenerate. After the raw catalyst is burnt and regenerated in the regenerator, it can be reused.

[0003] With the pursuit of economic benefits and the increasingly heavy processing of crude oil, the FCC unit is required to have better flexibility and adaptability. Therefore, not only useful FCC plant produces gasoline recently, but also adopts the trend of FCC plant to produce petrochemical raw materials such as ethylene, prop...

Claims

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