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Heavy oil hydrogenation method

A technology for hydrogenation reaction and hydrogenation products, which is applied in the fields of hydrotreating process, petroleum industry, treatment of hydrocarbon oil, etc. consumption, reduce energy loss, reduce the effect of entrainment

Active Publication Date: 2018-01-26
SINOPEC ENG +1
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  • Abstract
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  • Claims
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Problems solved by technology

[0004] The purpose of the present invention is to provide a heavy oil hydrogenation method, which can solve the technical problems of unreasonable energy utilization, short device operation time and high equipment investment cost in the existing heavy oil hydrogenation method

Method used

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Embodiment

[0077] Specific embodiments of the present invention will be provided below in conjunction with the accompanying drawings. Unless otherwise specified, the devices and devices used in the examples are conventional devices and devices well known to those skilled in the art.

[0078] Such as figure 1 As shown, after the raw material oil 1 is diluted with the tower bottom oil 16, it is mixed with supplementary hydrogen 2 and enters the raw material heating furnace 3 to heat up, and then enters the first ebullating bed reactor 4 respectively, and contacts with the first hydrogenation catalyst to perform the first hydrogenation. Hydrogen reaction to obtain interstage hydrogenation product 5, make interstage hydrogenation product 5 enter interstage gas-liquid separator 6 for gas-liquid separation, obtain interstage separation liquid 8 and interstage separation gas 7, make interstage separation liquid 8 be After being diluted with part of the hot high-fraction liquid returned to the ...

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Abstract

The invention discloses a heavy oil hydrogenation method. According to the present invention, a boiling bed and fixed bed online hydrogenation combination process is used, wherein the light oil obtained through hydrogenation with the boiling bed directly enters the fixed bed reactor so as to be subjected to the hydrogenation reaction without the cooling pressure reducing and fractionation process,such that the disadvantage that the conventional offline hydrogenation combination process sequentially comprises carrying out pressure reducing separation on the product and carrying out pressure increase and temperature increase hydrogenation so as to cause the complex process is avoided, the number of the equipment in the process is reduced, and the energy loss is reduced; and the method further has advantages of high light oil yield, low catalyst consumption, reasonable energy utilization and low equipment energy consumption.

Description

technical field [0001] The invention relates to the field of petroleum processing, in particular to a heavy oil hydrogenation method. Background technique [0002] With the aggravation of the heavy and inferior quality of petroleum processing raw materials and the increasingly stringent requirements of environmental protection regulations, how to carry out the deep processing of petroleum and the production of clean fuels has become an urgent problem to be solved in the oil refining industry. Among the processing methods of crude oil, the catalytic hydrogenation process plays an important role in the deep processing of crude oil due to its wide adaptability of raw materials, flexible operating conditions, and clean products. At present, heavy oil hydrogenation technologies mainly include fixed bed hydrogenation, ebullating bed hydrogenation, slurry bed hydrogenation and moving bed hydrogenation, among which fixed bed and ebullating bed are widely used. When dealing with raw...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G65/02
Inventor 乔爱军杨玖坡吴德飞李浩范传宏孙丽丽刘凯祥
Owner SINOPEC ENG
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