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Olefin hydration reaction system and olefin hydration method

A technology for hydration of olefins and olefins, applied in chemical instruments and methods, chemical/physical/physical chemical reactors, chemical/physical/physical chemical fixed reactors, etc., can solve poor mixing and dispersion effects, low mass transfer efficiency, etc. question

Pending Publication Date: 2022-05-03
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In the above-mentioned patents, the problems of poor mixing and dispersion and low mass transfer efficiency between olefin hydration reactants have not been fundamentally solved by adding additives to improve two-phase mixing or increasing the number of reaction stages

Method used

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  • Olefin hydration reaction system and olefin hydration method
  • Olefin hydration reaction system and olefin hydration method
  • Olefin hydration reaction system and olefin hydration method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] The mass ratio of olefin and water is introduced into the first mixing device with a ratio of 4:1 to form the first mixed material, and the mass ratio of olefin and water is introduced into the second mixed device with a ratio of 1:9 to form the second mixed material; the first The mass ratio of the mixed material to the second mixed material is 1:1. The first mixed material and the second mixed material are mixed through pipelines and then introduced into a tubular reactor for olefin hydration reaction. The bottom of the reactor is fed, and it is divided into four sections of reactors. The straight pipe section of each section is 2 meters long and four sections The reactors are connected in sequence. The straight pipe section of the reactor is 8 meters long in total, and the straight pipe section in the reactor is filled with olefin hydration catalyst.

[0040] In the first mixing equipment, the sheet in the microchannel mixing assembly is made of stainless steel, the ...

Embodiment 2

[0043] The water-alkene mass ratio is introduced into the first mixing device with a ratio of 5:1 to form the first mixed material, and the water-alkene mass ratio is introduced into the second mixed material with a ratio of 1:11 to form the second mixed material, the first mixed material and the second mixed material The mass ratio of the secondary mixture materials is 1:1. The two streams of materials are introduced into both ends of the homogenizer, and after being diverted by the guide tubes at both ends and ejected from the nozzle, they collide with each other, and the droplets in the two streams of materials permeate and diffuse each other to form a uniform mixture and introduce it into the tubular reactor. Olefin hydration reaction, feed at the bottom, is divided into three sections of reactors, each section of straight pipe is 3 meters long, and the three sections of reactors are connected in sequence, with a total length of 9 meters, and the straight pipes in the react...

Embodiment 3

[0047] Water ene mass ratio is introduced into the first mixing device with the ratio of 6:1 to form the first mixed material, and water ene mass ratio is introduced into the second mixed device with the ratio of 1:13 to form the second mixed material; the first mixed material and the second mixed material The mass ratio of the secondary mixture materials is 1:1. The two streams of materials are introduced into both ends of the homogenizer, and after being diverted by the guide tubes at both ends and ejected from the nozzle, they collide with each other, and the droplets in the two streams of materials permeate and diffuse each other to form a uniform mixture and introduce it into the tubular reactor. Olefin hydration reaction, feed at the bottom, is divided into five sections of reactors, each section of straight pipe is 2 meters long, and the five sections of reactors are connected in sequence, with a total length of 10 meters, and the straight pipes in the reactor are all fi...

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Abstract

The invention discloses an olefin hydration reaction system and an olefin hydration method, the system comprises a reaction raw material mixing zone and an olefin hydration reaction zone, and the reaction raw material mixing zone comprises a first mixing device, a second mixing device and a material homogenizing device. The olefin hydration method comprises the following steps: (1) feeding olefin and water in a mass ratio of greater than or equal to 1 into a first mixing device as a first feed to form a first mixed material; (2) feeding olefin and water in a mass ratio of less than or equal to 1 into second mixing equipment as a second feed to form a second mixed material; and (3) respectively feeding the first mixed material and the second mixed material into a guide cylinder coaxially arranged in the material homogenizing equipment, guiding, spraying by a nozzle, colliding to form a material with uniformly dispersed olefin micro-droplets and water micro-droplets and stable state, and feeding the material into an olefin hydration reactor for reaction. Through the improved mixing equipment and reaction system, the mixing dispersion state of olefin and water is enhanced, and the conversion per pass of the olefin hydration reaction is improved.

Description

technical field [0001] The invention belongs to the field of petrochemical industry, and in particular relates to an olefin hydration reaction system and an olefin hydration method. Background technique [0002] The olefin hydration reaction process is a typical liquid (olefin)-liquid (water) mass transfer reaction system, and the reaction rate and conversion rate are greatly affected by the liquid-liquid mass transfer, which is mainly due to the mutual solubility of the two liquid phases of olefin and water. Small, which restricts the reaction efficiency and production capacity of the olefin hydration process. In the prior art, static mixing is generally used for mixing. During the reaction process, due to the large droplet size (generally millimeter level) in the conventional mixing method, the state of existence is unstable, making the contact surface area between the two phases large and easy. Phase separation leads to a very slow mass transfer reaction rate. Therefore,...

Claims

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Application Information

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IPC IPC(8): B01J19/00B01J19/24C07C29/04C07C31/12
CPCB01J19/2415B01J19/0093B01J19/0053B01J19/0006C07C29/04C07C31/12
Inventor 周峰乔凯杨秀娜马会霞张淑梅姜睿
Owner CHINA PETROLEUM & CHEM CORP
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