Carbonylation reacting kettle

A technology of carbonylation reaction and reaction kettle, which is applied in the field of carbonylation reaction kettle, can solve the problems of not being able to effectively drive the reaction mixture, and cannot realize the smooth progress of the reaction mixture, so as to improve efficiency and yield, uniform distribution, and shorten the running distance Effect

Active Publication Date: 2012-05-02
陕西煤业化工技术开发中心有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is that both the gas and liquid outlets of the carbonylation reactor in the prior art are arranged at the bottom of the inner cylinder, and the reaction mixture in the inner cylinder needs to move upwards driven by the upward injection force of the gas raw material during operation. , but when the injection force of the gas raw material is insufficient, the reaction mixture cannot be effectively driven upward to the top of the inner cylinder, and the reaction mixture cannot be smoothly circulated downward from the top of the inner cylinder; Carbonylation reactors for fast and efficient reaction mixture circulation

Method used

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Examples

Experimental program
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Embodiment 1

[0032] Carbonylation reactor structure of the present invention such as figure 1As shown, it includes: a kettle body 1, a partition 2 is arranged inside the kettle body 1, and the partition 2 takes the axis of the kettle body 1 as the central axis to surround and connect to form a cylinder, and the partition 2 Fix by four support rods 9 symmetrically connected on the side wall of the kettle body 1, the cylindrical area surrounded by the partition plate 2 is a descending zone, and an ascending zone is formed between the outer wall of the partition plate 2 and the inner wall of the kettle body 1, The two ends of the ascending zone and the descending zone are communicated. The inner diameter ratio of the kettle body 1 and the descending zone is 1.5-2. The bottom of the kettle body 1 is provided with a liquid outlet 8 for discharging the liquid generated by the reaction. The top of the kettle body 1 is provided with a There is a gas outlet 3 for discharging reaction tail gas and u...

Embodiment 2

[0034] The structure of the carbonylation reactor described in this embodiment is as follows: figure 2 As shown, it includes: the cylindrical area surrounded by the partition plate 2 is an uplink zone, a downlink zone is formed between the outer wall of the partition plate 2 and the inner wall of the kettle body 1, and the two ends of the uplink zone and the downlink zone are connected, and the kettle body 1 and the inner diameter ratio of the ascending area is 1.5-2, and the liquid distributor is symmetrically provided with 5 liquid injection ports 5 opening upwards with the axis of the kettle body 1 as the center in the ascending area, and the axis of the kettle body 1 is centered in the descending area. The center is symmetrically provided with 4 liquid injection ports 5 opening downwards, and the gas distributor is provided with 5 gas injection microholes 7 opening upwards symmetrically with the axis of the kettle body 1 in the uplink area; the structures and embodiments o...

Embodiment 3

[0036] The structure of the carbonylation reactor described in this embodiment is as follows: image 3 , 4 As shown, comprising: still body 1, there is a clapboard 2 that is arc-shaped curved surface in the said kettle body 1 and is connected with described kettle body 1 inner wall, starts from the upper end of divider plate 2 and still body 1 joint simultaneously The first opening section 11 is formed downwardly, the angle between the first opening section 11 and the axis of the kettle body 1 is 45°, and it starts to slope upward from the junction of the lower end of the partition plate 2 and the kettle body 1 A second opening section 12 is formed, and the angle between the second opening section 12 and the axis of the kettle body 1 is 60°; the arc-shaped area 10 surrounded by the inner wall of the partition plate 2 and the inner wall of the kettle body 1 is a descending area , the area formed by the outer wall of the partition plate 2 and the inner wall of the kettle body 1...

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Abstract

The invention relates to a carbonylation reacting kettle, comprising a kettle body, and a separation plate which is arranged in the kettle body and used for separating the kettle body to form an upstream and a downstream area of which the two ends communicates with each other. A liquid outlet is arranged on the bottom part of the kettle body, and a gas outlet is arranged on the top part of the kettle body. A liquid inlet and a liquid distributor are arranged on the upper part of the kettle body. A liquid jetting opening of the liquid distributor of which at least one opening faces upwards is arranged in the upstream or located in the vertical extending area of the upstream which faces the top part, and a liquid jetting opening of the liquid distributor of which at least one opening faces downwards is arranged in the downstream area or located in the vertical extending area of the downstream area which faces the top part. A gas inlet and a gas distributor are arranged on the lower part of the kettle body. A gas jetting micro-pore of the gas distributor is located in the upstream or located in the vertical extending area of the upstream which faces the bottom part, and the opening faces upwards. The arrangement position of the liquid distributor is higher than that of the gas distributor.

Description

technical field [0001] The invention relates to a carbonylation reaction kettle, which belongs to the field of chemical equipment. Background technique [0002] Acetic acid and acetic anhydride are important organic chemical raw materials, widely used as raw materials for medicine, dyes, spices and organic synthesis, and their industrial synthesis generally adopts the method of carbonylation. Specifically, methanol and CO are used as raw materials to carry out carbonylation reaction with a catalyst to obtain acetic acid; methyl acetate, methanol and carbon monoxide are used as raw materials to react under the action of a rhodium-based catalyst to obtain acetic anhydride. [0003] Since the carbonylation of acetic acid and acetic anhydride is a heterogeneous chemical reaction, in order to mix the reactants evenly, a reactor with a stirrer is generally used, but the reactor with a stirrer is poorly sealed, consumes a lot of energy, and causes failures Afterwards, it is not ea...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J19/26C07C53/12C07C53/08C07C51/12C07C51/56
Inventor 王振宇唐应吉尚建选马晓迅张蕾
Owner 陕西煤业化工技术开发中心有限责任公司
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