Reaction and separation integrated countercurrent hydrogenation reaction process

A technology for hydrogenation reaction and hydrogenation reactor, which is applied in the fields of hydrotreating process, petroleum industry, processing of hydrocarbon oil, etc., can solve the problems of low product quality and low hydrogenation capacity, achieve high hydrogen purity, and promote hydrogenation. Cracking reaction, height reduction effect

Inactive Publication Date: 2020-08-25
SHAANXI YANCHANG PETROLEUM GRP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the difference in the hydrogenation and cracking reaction capabilities of the suspended bed hydrogenation reactor and the ebullated bed hydrogenation reactor in the reaction process, especially the low hydrogenation capacity of the suspended bed reactor, the product quality is relatively low. low, further processing required

Method used

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  • Reaction and separation integrated countercurrent hydrogenation reaction process

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] In the heavy and inferior oil hydrocracking unit, the homogeneous oil-soluble catalyst and the second-line oil from the atmospheric and vacuum unit are mixed at a ratio of 99:1 in the mixer 9 to prepare catalyst slurry; vacuum residue 1 and part of hydrogen 2 (Hydrogen mixing) mixed at a volume ratio of 1:9, heated to 420°C through the raw material heating furnace 5, and then mixed with the slurry of the catalyst 3 at a liquid volume ratio of 99:1 to form a mixed feed, which is fed by the reactor The upper part enters the upper part of the hydrocracking reactor 7 through the shower 6; the other part of the hydrogen 2 (reactive hydrogen) is heated to 420°C by the hydrogen heating furnace 4, and then distributed from the bottom of the reactor by the hydrogen distributor 8 to enter the hydrogenation process. The bottom of the cracking reactor 7; the reaction raw materials, the catalyst and the hydrogen entering the bottom are in countercurrent contact in the hydrocracking r...

Embodiment 2

[0039] In the coal direct liquefaction unit, the heterogeneous solid catalyst and the second-line oil from the atmospheric and vacuum unit are mixed at a ratio of 19:1 in the mixer 9 to prepare a catalyst slurry; the coal concentration is 40% oil prepared by coal and solvent oil Coal slurry 1 and part of hydrogen 2 (mixed hydrogen) are mixed at a volume ratio of 1:7, and after being heated to 460°C in the raw material heating furnace 5, they are mixed with the slurry of catalyst 3 at a liquid volume ratio of 49:1 to form a mixed feed , the mixed feed enters the upper part of the hydrocracking reactor 7 from the upper part of the reactor through the sprayer 6; another part of the hydrogen 2 (reactive hydrogen) is heated to 460 ° C by the hydrogen heating furnace Distributor 8 distributes into the bottom of hydrocracking reactor 7; the reaction raw materials, catalyst and the hydrogen entering from the bottom are in countercurrent contact in the hydrocracking reactor for heat and...

Embodiment 3

[0041] In the kerosene co-refining unit, the heterogeneous solid-loaded catalyst and the second-line oil from the atmospheric and vacuum unit are mixed at a ratio of 9:1 in the mixer 9 to prepare a catalyst slurry; the coal concentration prepared by coal and catalytic cracking oil slurry 40% oil-coal slurry 1 and part of hydrogen 2 (mixed hydrogen) are mixed at a volume ratio of 1:7, and after the raw material heating furnace 5 is heated to 470°C, they are mixed with the catalyst 3 slurry at a liquid volume ratio of 19:1 , forming a mixed feed, the mixed feed enters the upper part of the hydrocracking reactor 7 from the upper part of the reactor through the shower 6; another part of the hydrogen 2 (reactive hydrogen) is heated to 470 ° C by the hydrogen heating furnace 4, and then The bottom of the reactor is distributed into the bottom of the hydrocracking reactor 7 by the hydrogen distributor 8; the reaction raw materials, the catalyst and the hydrogen entering the bottom are...

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Abstract

Disclosed is a reaction and separation integrated countercurrent hydrogenation reaction process. A reaction raw material is mixed with part of hydrogen, heating is performed, a mixed feed is formed with catalyst slurry, the mixed feed is sprayed into a hydrocracking reactor from the upper part of the reactor, the reaction hydrogen is heated and boosted and then enters the hydrocracking reactor from the bottom of the reactor, and the reaction raw material and hydrogen are subjected to countercurrent heat and mass transfer and a hydrocracking reaction in the reactor; a gas-phase product directlyenters a fixed bed hydrogenation device from a top outlet of the reactor, so that clean fuel is obtained; a liquid (solid) phase product is depressurized and degassed and enters an atmospheric and vacuum distillation device from the bottom of the reactor; and side oil of the atmospheric and vacuum distillation device enters the fixed bed for hydrogenation, and bottom oil residues are partially directly discharged out of the device and partially circularly enter a raw material system.

Description

technical field [0001] The invention relates to the technical field of hydrogenation reaction, in particular to a countercurrent hydrogenation reaction process integrating reaction and separation. Background technique [0002] With the development of our country's social economy, the demand for energy is increasing day by day. In 2019, the foreign dependence of crude oil exceeded 70%, and it showed a trend of heavy and low quality. At the same time, the consumption of coal resources has long occupied a dominant position in my country's energy consumption structure. How to cleanly and efficiently convert heavy and low-quality oil and coal into light liquid fuels has become an important issue for the petrochemical industry and an important direction for oil refining companies to improve their efficiency in the future. Ebullated bed and suspended bed hydrogenation processes have received more attention because of their technical characteristics of strong raw material adaptabil...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G67/14
CPCC10G67/14C10G2300/4006C10G2300/4012C10G2300/70
Inventor 杨天华韩磊黄传峰张轩刘树伟杨涛
Owner SHAANXI YANCHANG PETROLEUM GRP
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