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Tinpot heavy oil processing and treating method

A low-quality heavy oil and treatment method technology, which is applied in the fields of hydroprocessing, petroleum industry, and hydrocarbon oil treatment, to achieve the effects of stable and uniform reaction heat release, high yield, and fast deactivation

Active Publication Date: 2016-05-11
上海竣铭化工工程设计有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0009] In view of the deficiencies in the prior art, the object of the present invention is to provide a method for processing inferior heavy oil, which uses inferior heavy oil to produce high-quality oil products, utilizes inferior heavy oil to the greatest extent, and improves the product liquid yield; solves the problem of heavy component processing in inferior heavy oil problem, ultimately improving the properties of the oil

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  • Tinpot heavy oil processing and treating method

Examples

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Effect test

Embodiment 1

[0049] (1) Medium and low-temperature coal tar from lignite in Shenmu County, whose properties are shown in Table 1, is sent into a centrifuge, centrifugally deslagging and fractionated dehydration, and the solids in the coal tar are removed until the particle diameter is less than 40um;

[0050] (2) Mix the heavy oil and hydrogen gas obtained in step (1) into the ebullated bed hydrogenation reactor for hydrogenation reaction. When the ebullated bed hydrogenation reactor is undergoing hydrogenation reaction, the catalyst is in a flowing state, and the catalyst is discharged and added online. , the active component of the catalyst is Ni, Co or Mo metal, the hardness is 15N / mm 2 Above; ebullated bed reaction temperature 388°C, reaction pressure 15.5MPa, hydrogen-oil volume ratio 500:1 and liquid hourly volume space velocity 1.0h -1 ;

[0051] (3) The reaction product obtained in step (2) is directly sent to a hot high-pressure separator, and the hot high-separation gas and hot ...

Embodiment 2

[0063] (1) The shale oil produced in Jimsar County, Xinjiang, whose properties are shown in Table 4, is sent to electric desalting to remove the salt metals in the shale oil to less than 10ppmwt; then the water is removed to the water level through the atmospheric tower Content less than 300ppmwt

[0064] (2) Mix the heavy oil and hydrogen gas obtained in step (1) into the ebullated bed hydrogenation reactor for hydrogenation reaction. When the ebullated bed hydrogenation reactor is undergoing hydrogenation reaction, the catalyst is in a flowing state, and the catalyst is discharged and added online. , the active component of the catalyst is Ni, Co or Mo metal, the hardness is 15N / mm 2 above; ebullated bed reaction temperature 400°C, reaction pressure 15.5MPa, hydrogen-oil volume ratio 700:1 and liquid hourly volume space velocity 0.8h -1 ;

[0065] (3) The reaction product obtained in step (2) is directly sent to a hot high-pressure separator, and the hot high-separation ga...

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Abstract

The invention belongs to the field of petrochemical industry and coal chemical industry processes, and particularly relates to a tinpot heavy oil processing and treating method. The method includes: removing solid residue and water in tinpot heavy oil; mixing the tinpot heavy oil with hydrogen, and feeding a mixture into a fluidized bed hydrogenation reactor for hydrogenation; directly flashing a reaction product to obtain hot high-component gas and hot high-component oil; after heat exchange cooling of obtained hot high-component gas, hydrorefining the hot high-component gas to obtain refined hot high-component gas; after depressurizing of obtained hot high-component oil, filtering, pressurizing the hot high-component oil, and mixing with hydrogen for hydrorefining and hydrocracking to obtain cracked hot high-component oil; fractionally distilling the refined hot high-component gas and the cracked hot high-component oil to obtain dry gas, liquefied gas, naphtha, diesel and tail oil products. By using the method, high-quality light oil products can be produced by adopting tinpot heavy oil, the tinpot heavy oil is utilized to greatest extent, product liquid yield is increased, and the processing problem of heavy components in the tinpot heavy oil is solved.

Description

technical field [0001] The invention belongs to the field of petrochemical and coal chemical technology, and in particular relates to a method for processing inferior heavy oil. Background technique [0002] The overall change trend of the world's crude oil quality is: the continuous resources of low-sulfur and light crude oil are declining, while the supply of heavy and low-quality crude oil is increasing. In the future, processing low-quality crude oil is not only a helpless choice for refining and chemical enterprises to ensure the supply of raw materials, but also the only way to reduce costs, increase efficiency, and achieve sustainable development. Among the four existing heavy oil processing technologies (delayed coking, visbreaking, heavy oil catalytic cracking, and heavy oil hydrogenation), only the heavy oil hydrogenation process can handle residual oil with high sulfur, high residual carbon, and high metal content, as well as It improves liquid collection and liq...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G67/00
CPCC10G67/00
Inventor 刘利王小英谢飚黄宜颖
Owner 上海竣铭化工工程设计有限公司
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