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Tower body of reaction distillation tower

A technology of reactive distillation tower and tower body, which is applied in the field of reactive distillation tower body, and can solve problems such as high energy consumption and complicated process

Active Publication Date: 2011-09-21
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is that the current reactive distillation process requires two towers, a reactive distillation tower and a product separation tower, and there are problems of complex flow and high energy consumption. A new reactive distillation tower body is provided. The method has the following advantages: Simple and low energy consumption

Method used

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  • Tower body of reaction distillation tower
  • Tower body of reaction distillation tower
  • Tower body of reaction distillation tower

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] according to figure 1 In the reactive distillation tower shown, the number of theoretical plates in the common stripping section is 15, the separation efficiency of the reaction section is equivalent to 18 theoretical plates, the theoretical number of plates in the rectifying section on the feed side is 5, and the theoretical plate number in the stripping section on the feed side is 10. The number of theoretical plates in the rectification section on the production side is 25, the catalyst is a sodium sulfonate ion exchange resin, and water enters the first theoretical plate in the reaction section of the separation tower at a flow rate of 2.32 g / min (counted from top to bottom, The same below), methyl acetate enters from the bottom of the reaction section of the separation tower at a flow rate of 3.00 g / min, and the temperature at the top of the separation tower is controlled to be 64.5°C, and the output at the top of the separation tower is 1.30 g / min, and the operati...

Embodiment 2

[0020] according to figure 1 In the reactive distillation tower shown, the number of theoretical plates in the common stripping section is 30, the separation efficiency of the reaction section is equivalent to 25 theoretical plates, the theoretical number of plates in the rectifying section on the feed side is 15, and the theoretical plate number in the stripping section on the feed side is 20, the number of theoretical plates in the rectification section on the production side is 30, the catalyst is a sodium sulfonate ion exchange resin, and water enters the first theoretical plate in the reaction section of the separation tower at a flow rate of 2.32 g / min (counted from top to bottom, The same below), methyl acetate enters from the bottom of the reaction section of the separation tower with a flow rate of 3.00 g / min, and the temperature at the top of the extraction side of the control separation tower is 64.5 ° C, and the output at the top of the tower is 1.30 g / min. After t...

Embodiment 3

[0022] according to figure 1 In the reactive distillation tower shown, the number of theoretical plates in the public stripping section is 10, the separation efficiency of the reaction section is equivalent to 10 theoretical plates, the theoretical plate number of the rectification section on the production side is 10, and the catalyst is sodium sulfonate ion exchange resin , water enters the first theoretical plate of the reaction section of the divided tower with a flow rate of 2.32 g / min (counting from top to bottom, the same below), methyl acetate enters from the bottom of the reaction section of the divided tower with a flow rate of 3.00 g / min, and the control of the divided tower The temperature at the tower top of the production side is 64.5°C, and the output at the top of the tower is 1.30 g / min. After the operation is stable, the obtained result is that the methanol content at the tower top of the production side is 99.92% by weight, and the acetic acid content at the...

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Abstract

The invention relates to a tower body of a reaction distillation tower. The tower body mainly solves the problems that the conventional reaction distilling process is required to be realized by the reaction distillation tower and a product separation tower, the flow is complicated and energy consumption is high. The tower body of the reaction distillation tower comprises a raw material feeding hole, a feeding-side tower top feeding hole, a tower top discharge hole, a discharge-side tower top feeding hole, a discharge-side tower top discharge hole, a tower bottom feeding hole, a tower bottom discharge hole, a tower top separation plate, a reaction section, a discharge-side rectifying section and a common stripping section, wherein a rectifying section and / or a stripping section can be arranged on a feeding side; the separation plate in the tower body of the reaction distillation tower separates the tower into a feeding-side rectifying section, the reaction section, a feeding-side stripping section, the discharge-side rectifying section and the common stripping section; in a reaction distilling interval, the reaction section is positioned between the feeding-side rectifying section and the feeding-side stripping section, the feeding-side rectifying section is arranged above the reaction, and the feeding-side stripping section is arranged below the reaction section; an area between the bottom of the separation plate and the tower bottom feeding and discharge holes is the common stripping section; and in the area where the separation plate is located, the discharge-side rectifying section is arranged on the other side of the raw material feeding hole. By the technical scheme, the problems are better solved, and the tower body of the reaction distillation tower can be applied to reaction distilling industries.

Description

technical field [0001] The invention relates to a tower body of a reactive distillation tower. Background technique [0002] Catalytic distillation technology is that the separation of reaction and product is carried out in the same catalytic distillation equipment, and the generated product is separated while the reaction is in progress, and the balance of the reaction is broken, so that the reaction tends to be complete and the conversion rate of the reactant is improved; in addition, the reaction The heat can be absorbed by the vaporization of the reaction materials, so the reaction temperature can be kept constant, the energy consumption can be greatly reduced, the process flow is simplified, and the investment is also greatly reduced. The catalytic distillation column generally consists of three sections: the upper part is the rectification section (the rectification section may not be provided when the quality requirements for the top product are not high or not requir...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D3/14B01D3/42
Inventor 钟禄平肖剑张惠明
Owner CHINA PETROLEUM & CHEM CORP