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Delayed-coking tower-top oil gas online decoking device and method

A tower top oil gas and delayed coking technology, applied in chemical instruments and methods, separation methods, cracking, etc., can solve the problem of carrying too much coke powder, so as to ensure stable production, reduce the workload of frequent cleaning, and reduce the temperature of oil products Effect

Active Publication Date: 2020-05-08
CHINA UNIV OF PETROLEUM (EAST CHINA)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Based on this, it is of great significance to develop an online decoking device for oil and gas at the top of the delayed coking tower to solve the problem that the oil and gas at the top of the delayed coking tower carry more coke powder

Method used

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  • Delayed-coking tower-top oil gas online decoking device and method
  • Delayed-coking tower-top oil gas online decoking device and method

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Embodiment Construction

[0024] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0025] The implementation method of the present invention is illustrated by specific specific examples below, and those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification.

[0026] Referring to the accompanying drawings, the structures, proportions, sizes, etc. shown in the accompanying drawings of this specification are only used to match the content disclosed in the specification, for those who are familiar with this technology to understand and read, and are not used to limit the scope of the present invention. Therefore, it has no technical substantive meaning, and any modification of structure, change of proportional relationship or adjustment of size shall still fall within the scope of The technical content disclosed in the present invention mus...

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Abstract

The invention aims to provide a device and a method for online removal of coke powder from tower-top oil gas. The device and the method can effectively reduce the coke powder to enter a fractionatingtower and block a tower tray, and can avoid coking products from carrying the coke powder to enter a downstream device; thus, the catalyst activity of a downstream refining device and the long-periodoperation of the device are influenced. The device comprises a cyclone separator and a coke powder discharging system, wherein the cyclone separator comprises a separator tank body and a plurality ofcyclone single pipes; the plurality of cyclone single pipes are connected with and mounted in the separator tank body through supporting plates; the coke powder discharging system comprises a coke powder bin and a pressure balance pipe; the top part of the coke powder bin is connected with the bottom part of the cyclone separator through a star-shaped valve and a first gate valve; the pressure balance pipe is connected with the upper part of the coke powder bin, so the coke powder bin is connected with an oil-gas pipeline; the bottom part of the coke powder bin is connected with a discharge gate valve; and a pressurized gas inlet is also arranged at the upper part of the coke powder bin.

Description

technical field [0001] The invention relates to the field of environmental protection equipment in terms of separation and purification in petrochemical equipment, in particular to an online decoking device and method for oil and gas at the top of a delayed coking tower. Background technique [0002] As a kind of decarbonization technology, delayed coking is widely used in the processing of heavy and low-quality oil due to its advantages of low investment, low operating cost, simple process, wide adaptability of raw materials, and high conversion depth. Coking distillate oil (coking gasoline, coking diesel oil, coking wax oil) contains high content of olefins and heteroatoms such as sulfur, nitrogen, silicon, etc., and has poor stability, so it cannot be used directly as a product. In order to make the coking distillate oil meet the end product standard, subsequent processing (hydrofining, catalytic cracking, etc.) must be carried out. [0003] With the increase in the proc...

Claims

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Application Information

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IPC IPC(8): C10G9/00C10G11/00B01D45/12B01D45/18
CPCC10G9/00C10G11/00B01D45/12B01D45/18
Inventor 王振波朱丽云刘兆增孙治谦李强巩志强李安俊
Owner CHINA UNIV OF PETROLEUM (EAST CHINA)
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