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Coking delaying method of easy-coking oil product

A delayed coking method and technology for tar products, which are applied in the field of delayed coking of tar-prone products, and can solve problems such as unreported

Inactive Publication Date: 2013-05-22
何巨堂
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Problems solved by technology

[0011] The inventive method has not been reported

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[0016] A kind of delayed coking method of tar-prone oil product of the present invention, its basic mode is " 2 furnaces 2 towers ", namely 2 coking tower feeding heating furnaces are configured as a group of heating furnaces with 2 coking towers; in order to realize coking tower feeding Continuous heating process, when a coking tower feed heating furnace is shut down, cut out of the coking tower feed heating production line, cut into the decoking production line, decoking, cut out of the decoking production line, cut into the coking tower feed heating production line , the other coking tower feed heating furnace is in the state of heating the coking tower feed; in order to realize the continuation of the overall process of coking tower coke and coke discharge, coking tower A and coking tower B are mutually standby, switching operation, One is in the coke cleaning condition, and the other is in the coke production condition.

[0017] When the coking tower feed heating furnace ...

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Abstract

The invention relates to a coking delaying method of an easy-coking oil product. According to the basic mode of 'two-furnace and two-tower', two coking tower feeding heating furnaces are used as one group of heating furnaces matched with two coking towers, wherein when one coking tower feeding heating furnace is in a procedure of shutdown, a cut-out coking tower feeding heating production line, a cut-in coking removing production line, a coking removing and cut-out coking removing production line and a cut-in coking tower feeding heating production line, the other coking tower feeding heating furnace is in the feeding state of the heating coking towers. When the coking removal in the coking tower feeding heating furnaces is not required, the coking tower feeding heating furnaces A and B heat the feeding materials in the coking towers simultaneously. The method has the advantages that under the condition that the investment is not increased greatly and the continuous operation of the coking towers is ensured, the oil product with a high residue carbon value and the coking rate can be processed, so that the coked raw oil is materialized deeply. As a result, the range of processing materials is enlarged.

Description

technical field [0001] The invention relates to a method for delayed coking of tar-forming oil products; in particular, the invention relates to a method for delayed coking of coal tar heavy oil. Background technique [0002] In the oil delayed coking process, the heating of raw material oil and coking and coking are the core steps. The basic mode of the conventional method is "one furnace and two towers", that is, one coking tower feed heating furnace is equipped with two coking towers. In order to realize The overall process of coke production and coke discharge in the coking tower is continuous. Coking tower A and coking tower B are mutually in standby, switching operation, one is in the coke cleaning condition, and the other is in the coke production condition. The coke generated in the coking tower is usually discharged by hydraulic decoking. The high-temperature oil vapor discharged from the top of the coking tower enters the coking fractionation tower (the feed port ...

Claims

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Application Information

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IPC IPC(8): C10B55/00C10G9/00
Inventor 何巨堂
Owner 何巨堂
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