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Three-phase separator, three-phase reactor and three-phase reaction method

A three-phase separator and three-phase reaction technology, applied in separation methods, chemical instruments and methods, filtration and separation, etc., can solve the problems of slow settling speed, high cost, prolonged settling time, etc., and achieve good separation effect.

Active Publication Date: 2020-08-04
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Although the above-mentioned patents can efficiently separate solid particles online, they have disadvantages such as complex structure and high cost, and for ultra-fine particles, because of their slow settling speed, the settling time is greatly prolonged

Method used

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  • Three-phase separator, three-phase reactor and three-phase reaction method
  • Three-phase separator, three-phase reactor and three-phase reaction method
  • Three-phase separator, three-phase reactor and three-phase reaction method

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Experimental program
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Effect test

Embodiment 1

[0060] The three-phase separation experiment carried out in this embodiment is carried out in a section of straight glass tube reactor, and the equipment structure is as follows: Figure 4 As shown, the top of the reactor is equipped with a metal sintered filter element that can be adjusted up and down, with a pore size of 5 microns. The experiment adopts air, water and FCC three-stage cyclone separator under normal temperature and pressure. The catalyst collected is gas-liquid-solid three-phase. A gas distributor is installed at the bottom of the tower to facilitate uniform air distribution. The diameter of the reactor is Height 1200mm. The bulk density of the FCC catalyst is measured to be about 0.78g / cm 3 , the particle size distribution is shown in Table 1, and the average particle size is about 20 microns.

[0061] When the gas flow rate is 1, 1.5, 2m respectively 3 / h, the liquid flow rate is 1, 1.5, 2L / h, add 5, 10, 20, 30g FCC catalyst to the reactor respectively, ...

Embodiment 2

[0063] This embodiment is basically the same as the embodiment, except that the pore diameter of the metal sintered filter element is 2 microns.

[0064] The experimental results show that under all different gas-liquid flow rates and FCC catalyst amounts, the outlet liquid is transparent, and the particle concentration is less than 0.1 μg / g. The experimental results are shown in Table 2.

Embodiment 3

[0066] This embodiment is basically the same as the embodiment, except that the pore diameter of the metal sintered filter element is 1 micron.

[0067] The experimental results show that under all different gas-liquid flow rates and FCC catalyst amounts, the outlet liquid is transparent, and the particle concentration is less than 0.1 μg / g. The experimental results are shown in Table 2.

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Abstract

The invention discloses a three-phase separator, a three-phase reactor and a three-phase reaction method, and relates to the technical field of three-phase reaction. The three-phase separator comprises a water collecting disc and at least one filtering piece arranged on the water collecting disc, each filtering piece comprises a filter element and a riser, a filtering cavity of each filter elementis communicated with the corresponding riser, each riser penetrates through the water collecting disc and extends to one side of the water collecting disc, and each filter element is located on the other side of the water collecting disc. The three-phase reactor comprises a reactor cylinder and the three-phase separator arranged at the upper part of the reactor cylinder, and the periphery of thewater collecting disc is connected with the side wall of the reactor cylinder. The three-phase reaction method comprises the following steps: carrying out three-phase reaction by adopting the three-phase reactor, so that the reaction liquid level is immersed to 0-50% of the height of the filter element. According to the scheme provided by the invention, during a three-phase reaction, catalyst particles are attached to a gas-liquid phase interface below the filter element, bubbles continuously scour the surface of the filter element to avoid catalyst deposition, and rapid and complete separation of a gas phase, a liquid phase and a catalyst is realized.

Description

technical field [0001] The invention relates to the technical field of three-phase reaction, in particular to a three-phase separator, a three-phase reactor and a three-phase reaction method. Background technique [0002] Gas-liquid-solid three-phase reaction is widely used in petroleum and chemical production. In order to make the reaction have good heat transfer, mass transfer and mixing performance, and to ensure uniform temperature in the reactor, even under the condition of strong exothermic reaction, it will not In the event of overheating, reactors such as slurry bed, ebullated bed, and suspended bed are often used. At the same time, in order to improve the catalytic efficiency, a microsphere catalyst is used. The catalyst particles are small, which is beneficial to reduce the internal diffusion resistance and improve the catalyst activity. However, there are also difficulties in separating the catalyst particles after the reaction, especially the catalyst particles b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J8/24B01D29/33
CPCB01J8/24B01J8/1845B01J8/1872B01D29/33
Inventor 裴旭东李朝恒陈卫红涂先红张凡
Owner CHINA PETROLEUM & CHEM CORP