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Butane oxidation reactor

An oxidation reactor and butane technology, which is applied in the fields of oxidation reaction preparation, chemical/physical/physical chemical fixed reactor, organic chemistry, etc., can solve the problems of long induction period, poor gas-liquid mass transfer resistance, slow reaction rate, etc. problems, to achieve the effect of promoting mass transfer, easy continuous operation, and high production efficiency

Inactive Publication Date: 2012-12-05
SHANDONG UNIV OF SCI & TECH +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This type of reactor is obviously not suitable for the butane oxidation process, because butane oxidation is a reaction with a long induction period, the reaction rate is slow, the consumption of oxygen-containing gas per unit time is less, and the gas-liquid mass transfer resistance is not the main contradiction

Method used

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  • Butane oxidation reactor
  • Butane oxidation reactor
  • Butane oxidation reactor

Examples

Experimental program
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Effect test

Embodiment 1

[0028] Such as figure 1 As shown, a butane oxidation reactor includes a cylinder 1, the ratio of the height to the inner diameter of the cylinder 1 is 40, a liquid inlet a and a gas outlet c are arranged on the upper part of the cylinder 1, and a liquid outlet is arranged on the lower part of the cylinder 1 d and gas inlet b, 20 reaction tanks 2 are set up and down in the cylinder body 1 in sequence. The reaction tank 2 is surrounded by the bottom plate, the side plate and the side wall of the cylinder. The depth of the reaction tank 2 is H=120mm. A gas ascending channel 3 is installed on the bottom plate of the reaction tank 2. The shape of the gas ascending channel 3 is cylindrical , the gas distributor 4 is arranged outside the gas ascending channel 3, the gas distributor 4 is a bubble cap type, such as figure 2 As shown, a gas return channel 5 is formed between the gas ascending channel 3 and the gas distributor 4, the gas rises to the top through the gas ascending chann...

Embodiment 2

[0033] The structure of the butane oxidation reactor is basically the same as in Example 1, the difference is that two sections of external circulation pipelines 26, 27 are added outside the cylinder, and a cooler 8 and a liquid circulation pump 9 are installed on the external circulation pipelines 26, 27, so as to Better removal of oxidation reaction heat, such as image 3 Shown; the depth of the reaction tank H=80mm, the number of reaction tanks is 30; the gas distributor adopts a distribution ring, such as Figure 4 Shown, so that the gas and the liquid in the reaction tank can be better mixed; the structural dimensions of the rest remain unchanged.

[0034] In the specific working process, the ratio of the flow rate of the externally circulated material to the flow rate of the fresh feed is 0.5:1, and the rest of the process conditions are the same as in Example 1. The reaction product is analyzed by chromatography, and the conversion rate of isobutane reaches 41.8%, and ...

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Abstract

The invention discloses a butane oxidation reactor, which comprises a cylinder, wherein a liquid inlet and a gas outlet are formed on the upper part of the cylinder body; a liquid outlet and a gas inlet are formed on the lower part of the cylinder body; a plurality of reaction tanks are formed in the cylinder body sequentially from top to bottom; downcomers are arranged between the reaction tanks and the side wall of the cylinder body, and the downcomers which are adjacent up and down are arranged in a staggered mode; gas ascending channels and gas distributors are arranged on the reaction tanks; an external circulating pipeline is connected to the outside of the cylinder body; a cooler and a circulating pump are arranged on the external circulating pipeline; liquid materials enter the cylinder body from the liquid inlet, overflow from the downcomers and flow through the reaction tanks sequentially from top to bottom; and gas enters the gas distributors from the gas ascending channels and is mixed with bubbles of the liquid materials in the reaction tanks, and reaction heat is cooled and removed from the cooler on the external circulating pipeline. The butane oxidation reactor is suitable for the liquid phase oxidation reaction process which is low in reaction speed and is operated continuously and easily, and the oxygen-containing gas flows through the reactor from bottom to top at one time, so that power consumption is saved.

Description

technical field [0001] The invention relates to chemical reaction equipment, in particular to a butane oxidation reactor suitable for butane oxidation reaction. Background technique [0002] The butane oxidation reaction is a typical gas-liquid two-phase reaction, or a gas-liquid-solid three-phase catalytic reaction, and the oxidation reaction mainly occurs in the liquid phase itself. At present, the bubbling reactor with mechanical stirring is generally used to realize the oxidation reaction. This type of reactor can accelerate the gas-liquid mixing, reduce or eliminate the mass transfer resistance between the gas-liquid two phases, thereby speeding up the reaction speed. . However, this type of reactor requires high energy consumption for operation and high repair and maintenance costs. In addition, the pressure required for the butane oxidation reaction is high, and the mechanically stirred reactor is prone to leakage, posing potential safety hazards. [0003] Chinese p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J19/24C07C31/12C07C29/50
Inventor 王志亮张效龙高文斌曹汉中王涛
Owner SHANDONG UNIV OF SCI & TECH