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Ionic liquid phase-change heat-storage catalytic oxidation equipment

A technology of phase change heat storage and catalytic oxidation, which is applied in gas treatment, separation methods, and separation of dispersed particles, etc. It can solve the problems of large temperature changes, poor safety, and low heat storage density, achieve constant temperature, and improve mixing uniformity , the effect of good technical effect

Active Publication Date: 2019-07-16
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention is the problem of large temperature change, low heat storage density and poor safety in the heat storage and heat release process in the prior art. A new ionic liquid phase change heat storage catalytic oxidation device is provided, which has The advantages of constant temperature during heat storage and heat release, high heat storage density and good safety

Method used

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  • Ionic liquid phase-change heat-storage catalytic oxidation equipment
  • Ionic liquid phase-change heat-storage catalytic oxidation equipment
  • Ionic liquid phase-change heat-storage catalytic oxidation equipment

Examples

Experimental program
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Effect test

Embodiment 1

[0025] An ionic liquid phase change regenerative catalytic oxidation device, comprising a gas mixer, a flame arrester, a catalytic oxidation reactor, a phase change heat accumulator, and a tail gas treatment device, the gas mixer is provided with a gas inlet pipeline, and the gas mixing The device is connected to the fire arresting device through the pipeline, the fire arresting device is connected to the catalytic oxidation reactor through the pipeline, the catalytic oxidation reactor is connected to the phase change heat accumulator through the pipeline, and the phase change heat accumulator is connected to the tail gas treatment device through the pipeline; The phase change heat accumulator is equipped with a cold fluid inlet, a cold fluid outlet, a hot fluid inlet, and a hot fluid outlet. The phase change heat accumulator is equipped with a heat pipe, a heat conduction fin, an ionic liquid phase change heat storage material, and a heat storage chamber. , There is an insulat...

Embodiment 2

[0028] According to the conditions described in Example 1, the organic gas containing ethylene, methane and carbon dioxide produced by a certain chemical plant is pressurized to 1.0 MPa by the compressor 4 and then enters the jet mixer 3 to mix with oxygen, and the oxygen content is controlled to be lower than 8%. The mixed gas enters the phase change heat accumulator 2 for preheating to 350°C. The heat accumulator uses immobilized imidazole ionic liquid (1-hexadecyl-3-methylimidazolium bromide ionic liquid), and the phase change The temperature is around 350°C, the outermost layer of the accumulator is filled with thermal insulation cotton, the preheated mixed gas enters the catalytic oxidation reactor 1 through the fire arresting device 13, and the fire arresting device is filled with explosion-proof corrugated fire arresting filler. The mixed gas is converted into carbon dioxide and water in the catalytic oxidation reactor, and the operating temperature is 350-380°C accordin...

Embodiment 3

[0030]According to the conditions described in Example 1, the organic gas containing ethylene, methane and carbon dioxide produced by a certain chemical plant is pressurized to 1.0 MPa by the compressor 4 and then enters the jet mixer 3 to mix with oxygen, and the oxygen content is controlled to be lower than 8%. The mixed gas enters the phase change heat accumulator 2 to be preheated to 350°C. The heat accumulator adopts immobilized imidazole ionic liquid (1-octyl-3-methylimidazolium hexafluorophosphate ionic liquid), and the phase change temperature At about 350°C, the outermost layer of the accumulator is filled with thermal insulation cotton, and the preheated mixed gas enters the catalytic oxidation reactor 1 through the fire arresting device 13, and the flame arresting device is filled with explosion-proof corrugated fire arresting filler. The mixed gas is converted into carbon dioxide and water in the catalytic oxidation reactor, and the operating temperature is 350-380°...

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Abstract

The invention relates to ionic liquid phase-change heat-storage catalytic oxidation equipment, and mainly solves the problems of large temperature change, a low heat storage density and poorer safetyin a heat-storage heat-release process in the prior art. According to the ionic liquid phase-change heat-storage catalytic oxidation equipment provided by the invention, VOC-containing waste gas generated by a chemical device enters a phase change heat accumulator, preheating is performed, the preheated gas enters a gas mixer to be mixed with air or oxygen, a mixed gas passes through a fire blocking device to enter a catalytic oxidation reactor, a purified high-temperature gas at an outlet of the catalytic oxidation reactor enters the phase change heat accumulator to convert heat into latent heat of a phase change material for storage, cooled purified gas enters a tail-gas treatment device, and the treated gas achieves a discharge standard and is discharged, so that the technical solutionbetter solves the above problems; and the equipment can be used in catalytic oxidation.

Description

technical field [0001] The invention relates to an ionic liquid phase change regenerative catalytic oxidation device. Background technique [0002] The organic tail gas generated in chemical equipment is generally removed by catalytic oxidation to remove harmful gases and then discharged or further processed. The oxygen in the tail gas is also removed by catalytic oxidation to prevent the occurrence of explosion due to excessive oxygen content in downstream processes. In addition , the heat generated by the reactor is usually used to preheat the raw material gas by means of heat storage. The combination of the above measures can achieve the requirements of safety, environmental protection and energy saving. [0003] The catalytic oxidation reaction process will release a large amount of heat, and the organic gas treatment process is usually not continuous operation, so it is difficult to achieve continuous heat exchange. The heat storage method can be used to realize the tra...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/90B01D53/44A62C4/02
CPCB01D53/90B01D53/8687A62C4/02B01D2251/102B01D2251/11B01D2257/708
Inventor 刘静如张帆石宁王振刚费轶贾学五
Owner CHINA PETROLEUM & CHEM CORP
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