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Method for reinforcing mixing effect of hydraulic reactor

A mixing effect and reactor technology, applied in chemical instruments and methods, chemical methods for reacting liquids and gaseous media, carbon monoxide reaction to prepare carboxylic acids, etc., can solve the problem of unsatisfactory gas-liquid and liquid-liquid mixing effects, The complex structure of the reactor, etc.

Active Publication Date: 2014-09-10
SINOPEC SHANGHAI ENG +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is that the gas-liquid and liquid-liquid mixing effects in the prior art are unsatisfactory and the reactor structure is complex, and a new method for strengthening the mixing effect of the hydraulic reactor is provided

Method used

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  • Method for reinforcing mixing effect of hydraulic reactor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] use figure 1 The hydraulic reactor shown includes an air outlet 1, a baffle 2, a liquid injection device 3, an air inlet 4, a gas distributor 5, a liquid outlet 6, and a liquid inlet 7; wherein, the air inlet 4 is located at the reaction The lower part of the side of the reactor, the gas outlet 1 is located at the top of the reactor, the liquid inlet 7 is located at the bottom of the reactor, and the liquid outlet 6 is symmetrically placed on both sides of the lower head of the reactor; the gas distributor 5 is located between the baffle plate 2 and the liquid injection device 3 The baffle 2 is located below the upper head; the baffle 2 has an air outlet.

[0020] Among them, the distance h between the baffle plate 2 and the gas distributor 5 1 The distance h between the liquid injection device 3 and the gas distributor 5 2 The relationship is: h 2 :h 1 =0.1. The diameter of the reactor is 4000mm, and the diameter of the baffle is 3600mm. The diameter of the air o...

Embodiment 2

[0023] Same as [Example 1], only the distance h1 between the baffle plate 2 and the gas distributor 5 and the distance h between the liquid injection device 3 and the gas distributor 5 2 The relationship is: h 2 :h 1 =0.2. The diameter of the reactor is 4000mm, and the diameter of the baffle is 3400mm. The diameter of the air outlet on the baffle is 5mm. The opening ratio of the baffle is 0.2. The baffle has a skirt, the height of the skirt is 100mm, and the skirt is 30° to the main body of the baffle. The gas distributor is a double-ring gas distributor, with an outer diameter of 2000mm, an inner diameter of 1000mm, and a number of 300 openings, which are equally spaced and evenly distributed. The liquid injection device is a reduced-bore tube type with an inlet diameter of 300mm and an outlet diameter of 150mm.

[0024] The above-mentioned reactor is used in the reaction of synthesizing acetic acid from methanol. The raw material methanol, CO and catalyst are used for...

Embodiment 3

[0026] Same as [Example 1], only the distance h between the baffle plate 2 and the gas distributor 5 1 The distance h between the liquid injection device 3 and the gas distributor 5 2 The relationship is: h 2 :h 1 =0. The diameter of the reactor is 4000mm, and the diameter of the baffle is 3500mm. The diameter of the air outlet on the baffle is 10mm. The opening ratio of the baffle is 0.25. The baffle has a skirt, the height of the skirt is 100mm, and the skirt is 60° to the main body of the baffle. The gas distributor is a double-ring gas distributor, with an outer diameter of 2800mm, an inner diameter of 1800mm, and a number of 300 openings, which are equally spaced and evenly distributed. The liquid injection device is a reduced-bore tube type with an inlet diameter of 300mm and an outlet diameter of 150mm.

[0027] The above-mentioned reactor is used in the reaction of synthesizing acetic acid from methanol. The raw material methanol, CO and catalyst are used for o...

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Abstract

The invention relates to a method for reinforcing the mixing effect of a hydraulic reactor, and mainly solves the problems of unsatisfactory gas-liquid and liquid-liquid mixing effect and complex structure in the prior art. The hydraulic reactor is used in a reaction for the low pressure liquid phase synthesis of acetic acid from methanol. The hydraulic reactor comprises a gas outlet 1, a baffle plate 2, a liquid jet device 3, a gas inlet 5, a gas distributor 5, liquid outlets 6 and a liquid inlet, wherein the gas inlet 4 is positioned at the lower side portion of the reactor, the gas outlet 1 is positioned at the top of the reactor, the liquid inlet 7 is positioned at the bottom of the reactor, and the liquid outlets 6 are symmetrically placed at two sides of the lower end closure of the reactor; the gas distributor 5 is positioned between the baffle plate 2 and the liquid jet device 3; the baffle plate 2 is positioned below an end closure; and the baffle plate 2 is provided with gas discharge holes. The above technical scheme well solves the problems, and the method can be used in the industrial production of the low pressure liquid phase synthesis of acetic acid from methanol.

Description

technical field [0001] The invention relates to a method for strengthening the mixing effect of a hydraulic reactor. Background technique [0002] Utilizing methanol low-pressure liquid-phase carbonylation reaction, making carbon monoxide and methanol fully gas-liquid mixed in the reactor to synthesize acetic acid technology is currently the most commonly used acetic acid production technology in the world. Document CN101090880A discloses a kind of manufacture method of acetic acid, and this method comprises in the presence of rhodium catalyst, iodine salt, methyl iodide, methyl acetate and water, methanol and carbon monoxide are continuously reacted, and the concentration of acetaldehyde in the reaction solution is maintained At 500 ppm or less, acetic acid is produced at a production rate of 11 mol / hour or more. In existing reactors, mechanical stirring is often used to achieve full mixing of gas-liquid and liquid-liquid. However, due to the large amount of corrosive medi...

Claims

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Application Information

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IPC IPC(8): B01J10/00C07C53/08C07C51/12
Inventor 许慎艳张艺贾微贾震
Owner SINOPEC SHANGHAI ENG
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