Method for raising production efficiency of delayed coking liquid product

A liquid product, delayed coking technology, applied in cracking, non-catalytic thermal cracking, petroleum industry, etc., can solve the problems of increasing equipment investment, reducing the contribution of coke yield, etc., to reduce equipment investment and reduce coke yield , cost reduction effect
CN1448466AInactive Publication Date: 2003-10-15CHINA PETROLEUM & CHEM CORP +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHINA PETROLEUM & CHEM CORP
Publication Date
2003-10-15
Estimated Expiration
Not applicable · inactive patent

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Abstract

The present invention discloses one kind of delayed coking process to produce several kinds of liquid products. The present invention features that during routine delayed coking process, low-molecular weight hydrocarbon heat supplying agent with high heat enthalpy and no high temperature coking is provided to coking tower so as to raise the liquid reaction temperature inside the coking tower, increase the yield of coking liquid product, and lower the yield of coke.
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Description

1. Technical field

[0001] The invention belongs to the delayed coking process, more specifically, it is a method for increasing the liquid product yield in the delayed coking operation process. 2. Background technology

[0002] Delayed coking, as one of the heavy oil processing methods, has been used in the oil refining industry for many years. The process uses heavy and low-quality residual oil as raw material. After being heated by a heating furnace, it enters the coking tower, and is thermally decomposed in the coking tower to generate gas products, liquid products with different boiling points and coke products.

[0003] At present, the raw material processed by the delayed coking unit of the refinery is getting heavier and heavier, the coke yield is as high as 30w%-40w%, and the liquid product is quite small. The delayed coking unit is limited by the coke yield, and the increase of the operating temperature can only be completed by the heating furnace. Increasing the ...

Claims

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