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VOCs waste gas catalytic oxidation deacidification dust removal device and treatment system

A technology of catalytic oxidation and dust removal device, which is applied in the direction of gas treatment, transportation and packaging, chemical instruments and methods, etc., and can solve the problems of longer waste gas treatment process and increased treatment cost

Pending Publication Date: 2021-05-18
SHANGHAI LANKE PETROCHEM ENG & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing catalytic oxidation method and regenerative catalytic oxidation technology that have been applied use pre-dust removal treatment for VOCs waste gas containing dust and heavy metals, which will lead to longer waste gas treatment process and increased treatment costs

Method used

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  • VOCs waste gas catalytic oxidation deacidification dust removal device and treatment system
  • VOCs waste gas catalytic oxidation deacidification dust removal device and treatment system
  • VOCs waste gas catalytic oxidation deacidification dust removal device and treatment system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0061] A chemical plant filter cake incineration waste gas treatment project

[0062] Source of exhaust gas: The exhaust gas of this project is the flue gas generated after the filter cake is incinerated. The front-end incineration process adopts a low-temperature incineration process (temperature is less than 690°C). Due to the low combustion temperature, the incinerated flue gas contains a large amount of CO, VOCs and a small amount of For heavy metal dust, the parameters of exhaust gas at the inlet of the device are shown in the table below.

[0063] project unit value Exhaust gas temperature ℃ 250 dust mg / Nm 3

[0064] Catalyst form: The catalyst supported by the porous ceramic fiber catalytic filter tube is La, Sr, Mn composite oxide.

Embodiment 2

[0068] A chemical plant filter cake incineration waste gas treatment project

[0069] Source of exhaust gas: The exhaust gas of this project is the flue gas generated after the filter cake is incinerated. The front-end incineration process adopts a low-temperature incineration process (temperature is less than 690°C). Due to the low combustion temperature, the incinerated flue gas contains a large amount of CO, VOCs and a small amount of For heavy metal dust, the parameters of exhaust gas at the inlet of the device are shown in the table below.

[0070] project unit value Exhaust gas temperature ℃ 350 dust mg / Nm 3

4000 SO 2

mg / Nm 3

500 HCL mg / Nm 3

100 CO mg / Nm 3

4000 VOCs mg / Nm 3

1000

[0071] Catalyst form: The catalyst supported by the porous ceramic fiber catalytic filter tube is La, Sr, Mn composite oxide.

[0072] Project implementation method: waste gas preheater + catalytic oxidati...

Embodiment 3

[0075] A chemical plant filter cake incineration waste gas treatment project

[0076]Source of exhaust gas: The exhaust gas of this project is the flue gas generated after the filter cake is incinerated. The front-end incineration process adopts a low-temperature incineration process (temperature is less than 690°C). Due to the low combustion temperature, the incinerated flue gas contains a large amount of CO, VOCs and a small amount of For heavy metal dust, the parameters of exhaust gas at the inlet of the device are shown in the table below.

[0077] project unit value Exhaust gas temperature ℃ 300 dust mg / Nm 3

3000 SO 2

mg / Nm 3

300 HCL mg / Nm 3

500 CO mg / Nm 3

5000 VOCs mg / Nm 3

1000

[0078] Catalyst form: The catalyst supported by the porous ceramic fiber catalytic filter tube is La, Sr, Mn composite oxide.

[0079] Project implementation method: waste gas preheater + catalytic oxidatio...

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Abstract

The invention belongs to the field of waste gas treatment, and discloses a VOCs waste gas catalytic oxidation deacidification dust removal device and a treatment system. The dust removal device comprises a shell, a porous ceramic fiber catalytic filter pipe and a compressed air back flushing mechanism, a gas inlet flue, a waste gas bin and a purified flue gas bin are sequentially arranged in the shell from bottom to top, and the gas inlet flue is communicated with the waste gas bin; the porous ceramic fiber catalytic filter pipe is arranged in the waste gas bin and is communicated with the purified flue gas bin, and a catalyst for catalytic oxidation of the VOCs waste gas is loaded on the surface of the porous ceramic fiber catalytic filter pipe; and the compressed air back flushing mechanism is arranged in the purified flue gas bin, is connected with the porous ceramic fiber catalytic filter pipe and is used for removing dust on the outer surface of the porous ceramic fiber catalytic filter pipe. The porous ceramic fiber sintering pipe is adopted to load the catalyst, so that the contact efficiency of the catalyst and waste gas is high, the catalytic oxidation efficiency is high, the integration of dust removal, deacidification and catalytic oxidation can be realized, and the occupied area and the input cost are reduced.

Description

technical field [0001] The invention relates to the field of waste gas treatment, in particular to a catalytic oxidation deacidification and dust removal device and a treatment system for VOCs waste gas. Background technique [0002] In the coal chemical industry, petrochemical industry, sewage treatment and pharmaceutical industries, some facilities will inevitably emit a large amount of VOCs waste gas due to process requirements, such as biochemical aeration tanks, sewage tanks, equipment workshops, raw material tank farms, and silos and other facilities. A large number of VOCs (volatile organic compounds) components emitted by these facilities vary greatly in concentration and air volume, and have a large impact on the surrounding area. The staff's long-term activities in the environment polluted by these substances may cause respiratory and digestive problems. System, reproductive system and other diseases may also cause body lesions or even cancer. [0003] At present...

Claims

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Application Information

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IPC IPC(8): B01D53/86B01D53/44B01D46/24B01D46/00
CPCB01D53/8687B01D46/2403B01D2258/0283B01D2257/708B01D46/58
Inventor 熊绍武马洪玺孙国辉杜先
Owner SHANGHAI LANKE PETROCHEM ENG & TECH
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