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Intelligent enhanced production system and process of 1, 4-butanediol

A production system, butanediol technology, applied in organic chemistry, chemical instruments and methods, chemical/physical processes, etc., can solve the problems of insufficient reaction in the hydrogenation section, incomplete catalyst reaction, and uniform hydrogen mixing, etc., to achieve improved Work efficiency and work quality, improve mixing quality and mixing efficiency, and ensure the effect of reaction rate

Pending Publication Date: 2021-03-09
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] 1. In order to promote the reaction in the hydrogenation section, manufacturers will increase the amount of catalyst, which increases the production cost
[0006] 2. Due to the increase in the amount of catalyst in the hydrogenation section, incomplete catalyst reaction often occurs, and the remaining catalyst is wasted, and after entering the follow-up system, it will affect the normal production of the follow-up system
[0007] 3. During the mixing process of hydrogen and slurry, there will still be a dead angle of stirring, and there will still be problems of uneven stirring between hydrogen, catalyst and slurry, resulting in insufficient reaction in the hydrogenation section and affecting the output of 1,4-butanediol
[0008] 4. Stirring cannot break or completely break the hydrogen bubbles, and the hydrogen cannot be mixed evenly with the slurry
[0009] In summary, there are obviously inconveniences and defects in the actual use of the existing technology, so it is necessary to improve

Method used

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  • Intelligent enhanced production system and process of 1, 4-butanediol
  • Intelligent enhanced production system and process of 1, 4-butanediol
  • Intelligent enhanced production system and process of 1, 4-butanediol

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] refer to Image 6 , a preparation process for preparing 1,4 butanediol using an intelligent intensified production system of 1,4 butanediol, comprising the following steps:

[0051] A. Add butadiene to the first reaction device 11 through the raw material feed pipe 111, and use the additive feed pipe 112 to add additives to the first reaction device 11. The additive is an iron-molybdenum catalyst, and the butadiene The ratio with iron molybdenum catalyst is 1:0.2;

[0052] B. During the reaction in step A, oxygen is added to the first reaction device 11 through the raw material feed pipe 111, and the oxygen content of the oxygen is 18%;

[0053] C, 1,4-diacetoxy and 2-butene are generated during the reaction in step B. In this reaction step, a Raney nickel catalyst needs to be added in the second reaction device 12, and the content of the Raney nickel catalyst accounts for is 0.5, the reaction temperature of this process is 20-70°C, and the reaction pressure is 0.1-0....

Embodiment 2

[0059] A kind of preparation technology that utilizes 1,4 butanediol intelligent strengthened production system to prepare 1,4 butanediol, comprises the following steps:

[0060] A. Add butadiene to the first reaction device 11 through the raw material feed pipe 111, and use the additive feed pipe 112 to add additives to the first reaction device 11. The additive is an iron-molybdenum catalyst, and the butadiene The ratio with iron molybdenum catalyst is 1:0.2;

[0061] B. During the reaction in step A, oxygen is added to the first reaction device 11 through the raw material feed pipe 111, and the oxygen content of the oxygen is 18%;

[0062] C, 1,4-diacetoxy and 2-butene are generated during the reaction in step B. In this reaction step, a Raney nickel catalyst needs to be added in the second reaction device 12, and the content of the Raney nickel catalyst accounts for is 0.5, the reaction temperature of this process is 20-70°C, and the reaction pressure is 0.1-0.8MPa;

[0...

Embodiment 3

[0068] A kind of preparation technology that utilizes 1,4 butanediol intelligent strengthened production system to prepare 1,4 butanediol, comprises the following steps:

[0069] A. Add butadiene to the first reaction device 11 through the raw material feed pipe 111, and use the additive feed pipe 112 to add additives to the first reaction device 12. The additive is an iron-molybdenum catalyst, and the butadiene The ratio with iron molybdenum catalyst is 1:0.2;

[0070] B. During the reaction in step A, oxygen is added to the first reaction device 11 through the raw material feed pipe 111, and the oxygen content of the oxygen is 18%;

[0071] C, 1,4-diacetoxy and 2-butene are generated during the reaction in step B. In this reaction step, a Raney nickel catalyst needs to be added in the second reaction device 12, and the content of the Raney nickel catalyst accounts for is 0.5, the reaction temperature of this process is 20-70°C, and the reaction pressure is 0.1-0.8MPa;

[0...

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Abstract

The invention is applicable to the technical field of butanediol production, and provides an intelligent enhanced production system and process of 1, 4-butanediol, the system comprises reaction devices including a first reaction device, a second reaction device and a third reaction device; micro-interface generators comprise a first micro-interface generator and a second micro-interface generatorwhich are respectively positioned at the bottoms of the first reaction device and the second reaction device; a mixing and stirring device comprises a guide rod, a fixed shell, a power shaft and a steering device, the steering device comprises a fixed shaft, a rotating part and a guide wheel fixedly connected with the rotating part, the fixed shaft is connected with the end of the rotating part through an elastic part, a limiting part is arranged on the fixed shell, the rotating part is longer than the fixed shell, and an auxiliary rod is arranged on the rotating part; an intelligent control device comprises a strategy setting unit, a parameter control unit and a model setting unit. Therefore, the reaction efficiency and the working quality can be effectively improved, and the reaction parameters can be intelligently adjusted.

Description

technical field [0001] The invention relates to the technical field of butanediol production, in particular to an intelligent enhanced production system and process for 1,4-butanediol. Background technique [0002] 1,4-butanediol is one of the methanol series product chains, and is an important basic organic chemical and fine chemical raw material. In the process of producing 1,4-butanediol, manufacturers generally do not use 1,4 - Butanediol is the final product, but focus on the extension of 1,4-butanediol derivatives, 1,4-butanediol derivatives are fine chemical products with high added value, widely used as solvents, medicines, cosmetics , plasticizers, curing agents, pesticides, herbicides, foamed artificial leather, fibers and engineering plastics, etc.; due to the wide range of uses and large amounts of 1,4-butanediol products, the 1,4-butanediol Production technology needs to be continuously improved. [0003] The production methods of 1,4-butanediol mainly include...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C29/09C07C31/20C07C67/05C07C67/283C07C69/16B01J8/10
CPCB01J8/10C07C29/095C07C67/05C07C67/283C07C69/16C07C31/207
Inventor 张志炳周政孟为民王宝荣杨高东罗华勋张锋李磊杨国强田洪舟曹宇
Owner NANJING YANCHANG REACTION TECH RES INST CO LTD
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