Activated carbon fiber regeneration device utilizing ozone oxidation-electrothermal desorption

Abstract

The invention discloses an activated carbon fiber regeneration device utilizing ozone oxidation-electrothermal desorption. The activated carbon fiber regeneration device comprises an adsorption pipeline and a desorption pipeline, wherein the adsorption pipeline is formed by connecting a to-be-treated gas flow controller, a three-way plunger valve I, an adsorption bed and a three-way plunger valveII in sequence; the desorption pipeline is formed by connecting a high-pressure oxygen cylinder, an oxygen flow controller, an ozone generator, the three-way plunger valve II, the adsorption bed, thethree-way plunger valve I, a compressor, a VOCs (Volatile Organic Chemicals) recycling tank and an ozone removing and capturing device in sequence; the adsorption bed is filled with an adsorbent; theadsorption bed is provided with a voltage regulation device; the voltage regulation device is formed by connecting heating power supplies with the upper and lower ends of the adsorption bed and connecting the heating power supplies with a temperature controller; a thermocouple is mounted at the middle section in the adsorption bed and the thermocouple is connected with the temperature controller;desorption and regeneration of an activated carbon fiber porous adsorption material can be realized; in-situ degradation treatment of VOCs is realized under a relatively low desorption temperature condition, the desorption and regeneration efficiency of the activated carbon fiber porous adsorption material is enhanced and the energy consumption of a desorption technology is reduced.

Description

technical field [0001] The invention belongs to the field of exhaust gas treatment, in particular to an activated carbon fiber regeneration device utilizing ozone oxidation-electrothermal desorption. Background technique [0002] Volatile organic compounds (Volatile Organic Compounds, VOCs) are a class of organic pollutants that are extremely harmful to the human body. When the VOCs in the living room exceed a certain concentration, people will feel headache, nausea, vomiting, and limb fatigue in a short time; Many reports point out that VOCs can harm the liver, kidneys, brain and nervous system, and even lead to blood problems and other serious diseases such as leukemia. In order to reduce the discharge of VOCs pollution sources to the environment and reduce the content of VOCs in the human living environment, one of the commonly used methods is to selectively adsorb and collect VOCs components through effective adsorption methods for centralized degradation treatment. Ac...

AI Technical Summary

Problems solved by technology

However, simply increasing the desorption temperature not only greatly increases the energy consumption of the desorption regeneration process, but also leads to the decomposition and failure of the adsorbent at too high a temperature, which greatly hinders the development of electrothermal desorption regeneration technology.

In addition, the simple desorption process can only separate VOCs from the adsorption material, and further harmless degradation treatment is required in the subsequent process, which also makes the whole treatment process more tedious and consumes more energy.

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