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A butane catalytic oxidation reaction device

A catalytic oxidation and reaction device technology, applied in the direction of chemical/physical processes, chemical instruments and methods, etc., can solve the problems of cumbersome control of reactor liquid level, temperature and pressure, large butane recovery load, heat waste, etc., and achieve oxygen Low loss, high reaction efficiency, and improved flow effect

Active Publication Date: 2018-03-06
青岛迈特达新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are fewer introductions about butane catalytic oxidation reactors. Chinese patent CN201210299239.4 discloses a reactor suitable for butane oxidation reactions. This reactor has a large oxygen loss in the reaction system, a large subsequent butane recovery load, and heat waste. The problem
In addition, this reactor adopts multiple side line extraction and external circulation pipeline backflow, which has the problem of cumbersome control of reactor liquid level, temperature and pressure

Method used

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  • A butane catalytic oxidation reaction device
  • A butane catalytic oxidation reaction device
  • A butane catalytic oxidation reaction device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Such as figure 1 As shown, a butane catalytic oxidation reaction device includes a reactor cylinder 1, the ratio of the height of the cylinder 1 to the inner diameter is 1.5:1, and an oxygen inlet a is arranged on the lower side wall of the cylinder 1, which is connected with the inside of the reactor. The gas distributor f is connected, a butane raw material inlet b is set at the bottom of the cylinder 1, a gas phase material outlet c is set at the top of the cylinder 1, a reactant outlet d is set on the upper side wall of the cylinder 1, and a A circulating butane inlet e is arranged on the lower side wall.

[0026] The gas-phase material outlet c is connected to the waste heat recovery boiler 2 through the first pipeline 11, and the gas-liquid mixture after condensation and heat release enters the gas-liquid separation tank 3 through the second pipeline 12, and the condensate is circulated through the first condensate circulation pipeline 13 and butane The pump 4 an...

Embodiment 2

[0031] The composition of the butane catalytic oxidation reaction device is the same as that of Example 1, the difference is that a flow guiding cylinder 7 is added in the reactor cylinder body 1 to improve the flow effect in the reactor, so that the gas-liquid can be better mixed and the liquid phase can be increased. Medium gas holdup, the root of the diversion cylinder 7 is flush with the tangent line of the lower head of the reactor cylinder 1, the height of the diversion cylinder is 0.7 times the height between the upper and lower tangent lines of the reactor cylinder, and the diameter of the diversion cylinder 7 is The diameter ratio of the reactor cylinder 1 is 1:1.4; the composition and structure size of the rest remain unchanged.

[0032] In concrete work process, processing condition is the same as embodiment 1. The reaction product is analyzed by a gas chromatograph, the conversion rate of isobutane reaches 43.1%, and the selectivity of the product tert-butanol reac...

Embodiment 3

[0034] The composition of the butane catalytic oxidation reaction device is the same as in Examples 1 and 2, except that the butane raw material is replaced by n-butane, and the composition and structure size of the rest of the reaction system remain unchanged, and the process conditions in the specific working process are the same as in Example 1.

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Abstract

The invention discloses a butane catalytic oxidation reaction device, which includes a reactor, a waste heat recovery boiler and a gas-liquid separation tank. The reactor includes a cylinder body and a gas distributor. There is a gas phase material outlet on the top, an oxygen inlet and a circulating butane inlet on the lower side wall of the cylinder, and a reactant outlet on the upper side wall of the cylinder, and the oxygen inlet is connected with the gas distributor; the gas phase material outlet is through a pipeline Connect the waste heat recovery boiler, the waste heat recovery boiler is connected to the gas-liquid separation tank through pipelines, the gas-liquid separation tank is connected to the oxygen inlet through the tail gas circulation pipeline, the gas-liquid separation tank is connected to the circulating butane inlet through the condensate circulation pipeline, and the butane raw material inlet is connected to the fresh Butane liquid delivery pipe connection. The reactor of the invention is suitable for the catalytic oxidation reaction of butane, has high reaction efficiency, is easy to operate continuously, and has stable production; the oxygen loss of the reaction tail gas is small, and the reaction heat is fully recovered and utilized.

Description

technical field [0001] The invention relates to a butane catalytic oxidation reaction device, which belongs to the field of chemical production equipment. Background technique [0002] Butane oxidation reaction can be divided into n-butane oxidation reaction and isobutane oxidation reaction according to different raw materials, and can be divided into non-catalyzed oxidation reaction and catalytic oxidation reaction according to the presence or absence of catalyst. The non-catalytic oxidation of butane belongs to the gas-liquid two-phase reaction. Compared with the catalytic oxidation of butane, its single-pass conversion rate is low and the selectivity of a single product is poor. Butane catalytic oxidation reaction belongs to gas-liquid-solid three-phase catalytic reaction, the reaction mainly occurs in the liquid phase body around the catalyst, and the reaction degree has a great relationship with the gas holdup in the liquid phase. In order to accelerate the gas-liquid ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J8/02
CPCB01J8/0278
Inventor 王志亮孟祥发高文斌
Owner 青岛迈特达新材料有限公司
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