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A kind of low-sulfur marine fuel oil production method

A production method and fuel oil technology, which are applied in the field of refining and chemical industry, can solve the problems of complex blending components, the sulfur content cannot meet the new index requirements, and the solid content is high, and achieve the advantages of low cost, cheap source of raw materials, and reduced viscosity and impurity content. Effect

Active Publication Date: 2022-06-07
CHINA PETROLEUM & CHEM CORP +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] In view of the problems existing in the current low-sulfur marine fuel oil production methods, such as high solid content, sulfur content that cannot meet the new index requirements (less than 0.5%), and complex blending components, the purpose of the present invention is to provide a production method that uses inferior heavy oil as raw material. Method for low sulfur bunker fuel oil with sulfur content less than 0.5%

Method used

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  • A kind of low-sulfur marine fuel oil production method
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Embodiment 1

[0041] Embodiment 1 takes vacuum residue oil as raw material, adopts residue oil pretreatment method of the present invention, vacuum residue oil first enters pretreatment reactor to carry out pretreatment reactor, and the reaction conditions of pretreatment reactor are: reaction temperature: 360℃, reaction pressure 0.65MPa, volume space velocity 1.5h -1 , and then through gas-liquid separation, the liquid phase enters the hydrogenation reactor for deep decontamination reaction. The reaction conditions in the hydrogenation reaction zone are: reaction temperature: 390 ℃, reaction pressure 14MPa, volume space velocity 0.45h -1 , the volume ratio of hydrogen to oil is 800. Part of the hydrogenation reaction product is obtained by atmospheric fractionation as 180# low-sulfur marine fuel oil, and the other part is obtained by vacuum distillation to obtain vacuum distillate oil and tail oil. The blended mass ratio of tail oil and light distillate oil is 10:1, which is directly used ...

Embodiment 2

[0043] Compared with Example 1, it is basically the same, except that the vacuum distillate oil is recycled back to the pretreatment reactor, and the weight ratio of the vacuum distillate oil to the low-quality heavy oil feedstock is 1:5. The reaction results are shown in Table 2.

Embodiment 3

[0045] Basically the same as Example 1, the difference is that the second gas phase material is recycled back to the pretreatment reactor, and the reaction results are shown in Table 2.

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Abstract

The invention discloses a method for producing low-sulfur marine fuel oil. Inferior heavy oil raw materials enter a pretreatment reactor and react with a treatment agent filled in the pretreatment reactor. After the reaction effluent is separated, the first liquid phase material and hydrogen are obtained. After mixing, it enters the hydrogenation reaction zone. The liquid phase material obtained after the hydrogenation reaction effluent is separated from the gas and liquid enters the atmospheric fractionation tower, and the light fraction and the heavy fraction are obtained after fractionation. The 180# low-sulfur marine fuel oil comes out of the device, and the other stream enters the vacuum fractionation tower for fractionation to obtain vacuum distillate oil and tail oil; the light fraction and tail oil are mixed to obtain 380# low-sulfur marine fuel oil. The production method of the invention has the advantages of simple process flow, cheap and easy-to-obtain raw materials, and low production cost, and can meet the demand for mass production of low-sulfur marine fuel.

Description

technical field [0001] The invention belongs to the field of oil refining and chemical industry, and in particular relates to a method for producing low-sulfur marine fuel oil by means of hydrogenation by using inferior heavy oil as a raw material. Background technique [0002] The MAPPOL Convention provides detailed regulations on the emission control area of ​​fuel oil sulfur content for ships and the limit value and implementation time of fuel oil sulfur content. On January 1, 2020 and after, when ships sail in general areas at sea, the sulfur content of marine fuel oil It should not exceed 0.5%; the sulphur content of fuel oil used on board should not exceed 0.1% when sailing in emission control areas. Through investigation and research, it is found that if the requirements for the use of low-sulfur fuel oil in the MAPPOL Convention are strictly implemented, the annual demand for low-sulfur fuel oil is about 3 million tons. There are almost no refineries in the world th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G69/00
CPCC10G69/00Y02P30/20
Inventor 杨涛孟兆会葛海龙刘玲陈博仝玉军
Owner CHINA PETROLEUM & CHEM CORP
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