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A heavy oil coking equipment

A technology for coking equipment and heavy oil, which is applied in the multi-stage series-connected refining and cracking process treatment, etc., can solve the problem of not being able to improve the coking performance of heating furnace tubes at the same time, and achieves reduction of processing steps and processing difficulty, and easy fluidization. The effect of conveying and preventing combustion

Active Publication Date: 2017-05-24
CHINA PETROLEUM & CHEM CORP +1
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  • Claims
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Problems solved by technology

[0010] The purpose of the present invention is to provide a new heavy oil coking equipment in order to overcome the defects that the existing delayed coking equipment cannot simultaneously improve the coking performance of the heating furnace tube and increase the liquid yield

Method used

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  • A heavy oil coking equipment
  • A heavy oil coking equipment
  • A heavy oil coking equipment

Examples

Experimental program
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Effect test

Embodiment 1-3

[0049] Examples 1-3 are used to illustrate the heavy oil coking method using the heavy oil coking equipment provided by the present invention.

[0050] The raw oil is introduced into the fractionating tower e from the raw oil inlet e1 of the fractionating tower e, and then introduced into the radiation heating zone of the heating furnace a from the bottom of the fractionating tower e for preheating, and the preheated raw oil passes through the raw material The inlet c25 is introduced into the spray coking tower c and atomized through the atomizing nozzle c18 to obtain atomized small droplets of 20-500 μm, and the oxygen-containing high-temperature gas obtained by burning coking dry gas from the combustion chamber of the heating furnace a The gas 3 is deoxidized through the coke reactor b, and the deoxidized high-temperature gas 4 (wherein the oxygen content is 0.1% by volume) is introduced into the spray coking tower c through the hot air inlet c24 at the top of the spray cokin...

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Abstract

The invention provides heavy oil coking equipment, which includes a heating furnace (a), a coke reactor (b), a spray coking tower (c), a cyclone separator (d) and a fractionating tower (e). A coking raw material is preheated in a heating furnace (a) and then atomized by an atomizing nozzle (c18) of the spray coking tower (c), oxygen-containing high temperature gas from the heating furnace (a) is deoxidized by the coke reactor (b) and then contacts the atomized state coking raw material in the spray coking tower (c) to carry out coking reaction, the coarse coke powder in the coking reaction product is collected from a lower cone collection area (c22), oil gas and coke fine powder in the coking reaction product are separated by the cyclone separator (d), and oil gas is introduced into the fractionating tower (e) to perform fraction separation. Belonging to direct heating type coking equipment, the heavy oil coking equipment can greatly reduce coking in a heating furnace tube and improve the liquid yield, also the obtained coke powder and the dry gas from the fractionation tower can be burnt to serve as the heat source of the heavy oil coking equipment.

Description

technical field [0001] The invention relates to heavy oil coking equipment. Background technique [0002] At present, the trend of heavy crude oil, low quality and high price is becoming more and more obvious. The global demand for light clean fuel oil is growing rapidly. Coupled with increasingly stringent environmental protection requirements, heavy oil deep processing technology has become the development of the world's oil refining industry. the key of. In particular, inferior heavy oil has the characteristics of high density, high viscosity, high heavy metal content, high sulfur content, high nitrogen content, high colloid and asphaltene content, which brings great challenges to the processing of crude oil (especially the secondary processing of heavy oil). difficulty. At present, the value-added technologies to increase the conversion depth of heavy oil and increase the output of light oil products still mainly rely on coking, catalytic cracking of residual oil and h...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G55/04
Inventor 张翊吕庐峰侯栓弟王子军张久顺张哲民马力田志鸿李学锋何金龙刘亚林
Owner CHINA PETROLEUM & CHEM CORP
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