Ascending type fixed bed oil product hydrogenation micro-interface enhanced reaction system

A fixed-bed reactor and reaction system technology, applied in the petroleum industry, hydrocarbon oil treatment, chemical instruments and methods, etc., can solve the problems of insufficient reaction energy consumption, small contact area, etc. Good effect of responsiveness and independence

Pending Publication Date: 2020-09-22
NANJING YANCHANG REACTION TECH RES INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of this, the present invention proposes an upward fixed-bed oil hydrogenation micro-interface enhanced reaction system, aiming at solving the problem of large energy consumption due to the small contact area between hydrogen and oil.

Method used

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  • Ascending type fixed bed oil product hydrogenation micro-interface enhanced reaction system
  • Ascending type fixed bed oil product hydrogenation micro-interface enhanced reaction system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Fresh hydrogen and gasoline pass through the gas phase inlet 2 of the gas-liquid linkage micro-interface generator and the liquid phase inlet 1 of the gas-liquid linkage micro-interface generator respectively at a standard volume ratio of 0.25:1, and enter the fixed-bed reactor 4 under the shell. In the gas-liquid linkage type micro-interface generator 3, the other path enters the gas-type micro-interface generator 15 through the gas phase inlet 17 of the pneumatic micro-interface generator and the liquid phase inlet 16 of the pneumatic micro-interface generator respectively at a standard volume ratio of 800:1 middle. Under the action of the gas-liquid linkage micro-interface generator 3 and the pneumatic micro-interface generator 15, the hydrogen is broken into microbubbles with an average diameter of 1 μm≤d2 and the H produced by the reaction 2 Gases such as S are extracted from the gas-phase outlet 6 of the gas-liquid separation tank, and the liquid-phase oil product...

Embodiment 2

[0047] Fresh hydrogen and kerosene enter the gas-liquid linkage micro-interface generator 3 through the gas-phase inlet 2 of the gas-liquid linkage micro-interface generator and the liquid phase inlet 1 of the gas-liquid linkage micro-interface generator respectively at a standard volume ratio of 0.3:1. One path enters the pneumatic microinterface generator 15 through the gas phase inlet 17 of the pneumatic microinterface generator and the liquid phase inlet 16 of the pneumatic microinterface generator respectively at a standard volume ratio of 900:1. Under the action of the gas-liquid linkage micro-interface generator 3 and the pneumatic micro-interface generator 15, hydrogen is broken into microbubbles with an average diameter of 1μm≤d2 and the H produced by the reaction 2 Gases such as S are extracted from the gas-phase outlet 6 of the gas-liquid separation tank, and the liquid-phase oil products after hydrodesulfurization are extracted from the liquid-phase outlet 7 of the ...

Embodiment 3

[0050] Fresh hydrogen and aviation kerosene enter the gas-liquid linkage micro-interface generator 3 through the gas-phase inlet 2 of the gas-liquid linkage micro-interface generator and the liquid phase inlet 1 of the gas-liquid linkage micro-interface generator respectively at a standard volume ratio of 0.28:1. The other path enters the pneumatic microinterface generator 15 through the gas phase inlet 17 of the pneumatic microinterface generator and the liquid phase inlet 16 of the pneumatic microinterface generator respectively at a standard volume ratio of 950:1. Under the action of the gas-liquid linkage micro-interface generator 3 and the pneumatic micro-interface generator 15, hydrogen is broken into microbubbles with an average diameter of 1μm≤d2 and the H produced by the reaction 2 Gases such as S are extracted from the gas-phase outlet 6 of the gas-liquid separation tank, and the liquid-phase oil products after hydrodesulfurization are extracted from the liquid-phase ...

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Abstract

The invention provides an ascending type fixed bed oil product hydrogenation micro-interface enhanced reaction system. The system comprises a fixed bed reactor, a micro-interface generator and a gas-liquid separation tank, wherein the micro-interface generator is arranged at the lower part of the fixed bed reactor; in the hydrogenation reaction process, pressure energy of hydrogen and / or kinetic energy of an oil product are / is converted into surface energy of hydrogen bubbles, so that the hydrogen bubbles are broken into microbubbles; then the microbubbles are mixed with the oil product in thereaction process to form a gas-liquid emulsion, and the gas-liquid emulsion enters a fixed bed reactor for subsequent reaction. The fixed bed hydrogenation micro-interface reaction system has the advantages of low operation pressure, large gas-liquid mass transfer phase interface area, high apparent reaction speed, high gas utilization rate, low investment, low energy consumption, flexible process and the like.

Description

technical field [0001] The invention relates to the technical field of fixed-bed reaction systems, in particular to an upward fixed-bed oil hydrogenation micro-interface strengthening reaction system. Background technique [0002] At present, gas-liquid, gas-liquid-solid and other gas-liquid reaction processes widely exist in the field of oil products. For gas-liquid heterogeneous reactions such as oxidation, hydrogenation, and chlorination, the macroscopic reaction rate is generally limited by the mass transfer process. The volumetric mass transfer coefficient of gas-liquid reaction is mainly affected by the mass transfer coefficient and the gas-liquid interface area. Previous studies have shown that the phase boundary area has a greater influence on the volumetric mass transfer coefficient and is easy to control. Therefore, increasing the phase boundary area is regarded as an effective way to increase the gas-liquid macroscopic reaction rate. [0003] Fixed bed reactor ...

Claims

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Application Information

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IPC IPC(8): B01J8/02B01J8/00C10G45/04C10G45/06C10G45/08
CPCB01J8/0242B01J8/001B01J8/0278C10G45/04C10G45/06C10G45/08C10G2300/202C10G2300/70
Inventor 张志炳周政王宝荣杨高东孟为民张锋李磊罗华勋杨国强田洪舟曹宇
Owner NANJING YANCHANG REACTION TECH RES INST CO LTD
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