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VOCs adsorption treatment device

An adsorption treatment and adsorbent technology, which is applied in the field of VOCs adsorption treatment devices, can solve problems such as inability to operate continuously, difficulty in saving energy and reducing consumption, and achieve the effects of meeting industrial production needs, long-term continuous and stable operation, and full exposure

Inactive Publication Date: 2017-05-10
CHNA ENERGY INVESTMENT CORP LTD +2
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The main purpose of the present invention is to provide a VOCs adsorption treatment device to solve the problems in the prior art that the adsorption treatment of low-concentration VOCs mixed gas cannot be continuously operated, and energy saving and consumption reduction are difficult

Method used

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Embodiment 1

[0045] In the adsorption treatment device for concentrated VOCs of the present invention, the working principle of solid adsorbent for adsorption, desorption and enrichment of high-temperature and low-concentration VOCs mixed gas is as follows:

[0046] like figure 1 As shown, the eleventh valve 61 is opened, and the adsorbent (with a particle diameter of 0.5-4 mm) in the adsorbent feeding device 60 enters the bubbling fluidized bed 10 . Open the fourth valve 11, and the mixed gas containing low concentration VOCs at a temperature of 700°C enters the device. Open the fifth valve 12, and the high-temperature mixed gas enters the heat exchanger 40 to cool down to 100-180°C (below the boiling point of VOCs). The low-temperature mixed gas enters the bubbling fluidized bed 10 in the form of fluidizing wind, and is in a bubbling fluidized state. The VOCs solid adsorbent is fully mixed with the mixed gas, and the adsorbent can adsorb VOCs. The sixth valve 51 is opened, the seventh ...

Embodiment 2

[0048] In the adsorption treatment device for concentrated VOCs of the present invention, the working principle of solid adsorbent for adsorption, desorption and enrichment of low-temperature VOCs-containing mixed gas is as follows:

[0049] like figure 1 As shown, the eleventh valve 61 is opened, and the adsorbent (with a particle size of 0.5-4 mm) in the adsorbent feeding device 60 enters the bubbling fluidized bed 10 . Open the fourth valve 11, and the mixed gas containing low concentration VOCs at a temperature of 120°C enters the device. Open the fifth valve 12, close the heat exchange project of the heat exchanger 40, the low-temperature mixed gas enters the bubbling fluidized bed 10 in the form of fluidizing wind through the heat exchanger 40, and makes the VOCs solid adsorbent in the bubbling fluidized state Fully mixed with the mixed gas, the adsorbent can adsorb VOCs. Open the sixth valve 51 and the seventh valve 52, start the burner 50, a part of the high-concentr...

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Abstract

The invention provides a VOCs adsorption treatment device which comprises a bubbling fluidized bed, a gas-solid separation device and a desorption device. A low-concentration VOCs mixed gas inlet, an adsorbent inlet and a mixture outlet are arranged on the bubbling fluidized bed, the gas-solid separation device is provided with a mixture inlet, a purified gas outlet and a solid-phase material outlet, and the mixture inlet is communicated with the mixture outlet; a to-be-desorbed material inlet, a fluidized gas inlet and an enrichment gas outlet are arranged on the desorption device, and the to-be-desorbed material inlet is communicated with the solid-phase material outlet. The bubbling fluidized bed is utilized as an adsorption device, so that running gas speed is low, bed layer resistance is low, and running energy consumption of a system can be lowered remarkably. In addition, mixing and wearing of a VOCs adsorbent can be enhanced, more sufficient contact between low-concentration VOCs mixed gas and the adsorbent can be realized, adsorption capacity of the adsorbent is improved, and adsorption efficiency of the VOCs adsorbent is further improved. Moreover, the VOCs adsorption treatment device can continuous and stably run for a long time and can meet industrial production needs.

Description

technical field [0001] The invention relates to the field of volatile organic compound VOCs adsorption treatment, in particular to a VOCs adsorption treatment device. Background technique [0002] VOCs are toxic, pollute the environment, and can inhibit the central nervous system of the human body. In 2010, my country's VOCs emissions from industrial sources were 13.356 million tons, mainly concentrated in industries such as petroleum refining, architectural decoration, machinery and equipment manufacturing, and printing. It is predicted that my country's VOCs emissions will reach 17.853 million tons in 2020. Therefore, how to effectively deal with VOCs has been the focus of attention in the industry. [0003] Mixed gases containing low concentrations of VOCs are usually not suitable for direct combustion. The current treatment method is mainly to use adsorbent adsorption and desorption method to concentrate the mixed gases containing low concentrations of VOCs into mixed g...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/12
CPCB01D53/12B01D2257/708B01D2259/40083Y02A50/20
Inventor 杨春振张波李洪梅张梦泽荀庆超
Owner CHNA ENERGY INVESTMENT CORP LTD
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