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Wear-resistant anticorrosion acetic acid production device

A production device and corrosion-resistant technology, which is applied in the field of anti-wear and corrosion-resistant acetic acid production devices, can solve the problems of easy corrosion, no wear resistance, short life, etc., prolong the service life of the equipment, improve the conversion rate, and have remarkable wear-resistant and anti-seepage effects Effect

Inactive Publication Date: 2017-02-01
GUANGXI XINTIANDE ENERGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a wear-resistant and corrosion-resistant acetic acid production device for the existing production equipment, which is easy to corrode, not wear-resistant, and has a short life.

Method used

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  • Wear-resistant anticorrosion acetic acid production device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] Bubble reaction tower 1 inside has 0.5cm zirconia coating in the present embodiment; 2 o 3 , 93.5%ZrO 2 composition of ingredients.

[0013] Anti-wear and corrosion-resistant acetic acid production equipment, such as figure 1 As shown, the device includes a bubbling reaction tower 1, a flash tank 2, a light component tower 3, a dehydration tower 4, a weight removal tower 5, a waste acid stripper 6, a gas-liquid separator 7, and a light component condensation tank 8. The light component condenser 9, the bubbling reaction tower 1, the flash tank 2, the light component tower 3, the dehydration tower 4, the weight removal tower 5, and the waste acid stripping tower 6 are connected in sequence, and the light component tower 3 and The light component condensation tank 8 and the light component condenser 9 are connected in sequence, and the gas-liquid separator 7 is externally connected to the bubbling reaction tower 1 .

[0014] In this embodiment, the service life of the...

Embodiment 2

[0016] Bubble reaction tower 1 inside has 1cm zirconia coating in the present embodiment; 2 o 3 , 93%ZrO 2 composition of ingredients. All the other structures are the same as in Example 1.

[0017] In this embodiment, the service life of the acetic acid reaction tower is extended to more than 8 years, the reaction system can be reused 25 times, and the conversion rate of acetic acid is increased by more than 15% compared with traditional equipment and methods.

Embodiment 3

[0019] Bubble reaction tower 1 inside has 0.8cm zirconia coating in the present embodiment; 2 o 3 , 94.5%ZrO 2 composition of ingredients. All the other structures are the same as in Example 1.

[0020] In this embodiment, the service life of the acetic acid reaction tower is extended to more than 8 years, the reaction system can be reused 30 times, and the conversion rate of acetic acid is increased by more than 15% compared with traditional equipment and methods.

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PUM

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Abstract

The invention belongs to the field of acetic acid energy-saving and environment-friendly production, and relates to a wear-resistant anticorrosion acetic acid production device. The device comprises a bubbling reaction tower 1, a flashing tank 2, a light component tower 3, a dewatering tower 4, a heavies removing column 5, a waste acid stripping tower 6, a gas-liquid separator 7, a light component condensation tank 8 and a light component condenser 9. The bubbling reaction tower 1, the flashing tank 2, the light component tower 3, the dewatering tower 4, the heavies removing column 5 and the waste acid stripping tower 6 are sequentially connected. The light component tower 3 is sequentially connected with the light component condensation tank 8 and the light component condenser 9. The bubbling reaction tower 1 is externally connected with the gas-liquid separator 7. The bubbling reaction tower is internally provided with a zirconium oxide coating. The production device has the advantages of being resistant to corrosion and wear, long in service life and the like.

Description

technical field [0001] The invention belongs to the field of acetic acid production, and relates to a wear-resistant and corrosion-resistant acetic acid production device. Background technique [0002] There are many methods currently used to produce acetic acid, the most widely used industrial method is the carbonylation reaction of methanol and CO, which is called the Monanto method. For example, the method listed in US Pat. No. 3,769,329, the method has been widely used in industries all over the world and has been promoted and developed. The US3769329 method includes dissolving or dispersing a rhodium catalyst and a halogen-containing organic catalyst promoter (preferably methyl iodide) in a liquid reaction medium. This patent states that the reaction liquid medium can be any solvent that is compatible with the catalyst system. In the carbonylation of methanol and CO to produce acetic acid, the solvent can be methanol, ethyl acetate and acetic acid, preferably acetic ac...

Claims

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Application Information

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IPC IPC(8): C07C51/12C07C53/08C07C51/42C07C51/44B01J19/02C09D1/00
CPCC07C51/12B01J19/02B01J2219/024C07C51/42C07C51/44C09D1/00C07C53/08
Inventor 黄皑昌程坤
Owner GUANGXI XINTIANDE ENERGY