Filling type device for purifying VOCs (Volatile Organic Compounds) through low-temperature plasma synergistic adsorption and catalysis

Abstract

The invention discloses a filling type device for purifying VOCs (Volatile Organic Compounds) through low-temperature plasma synergistic adsorption and catalysis. The device comprises a pre-dedusting device and a shell, wherein the shell comprises an inlet horn with a small front part and a big rear part, a middle section and an outlet horn with a big front part and a small rear part; the pre-dedusting device, the inlet horn, the middle section and the outlet horn are communicated in sequence; a low-temperature plasma reactor is arranged in the middle section; the low-temperature plasma reactor is filled with a catalyst and activated carbon; the low-temperature plasma reactor is connected with a high-frequency and high-voltage power supply. The device integrates the low-temperature plasma technology and the adsorption and catalysis technology and improves the removal rate of the VOCs through mutual cooperation. The purifying device has the characteristics of being efficient in pollutant molecular decomposition and low in treatment energy consumption, adopts a one-section type structure and is small in floor area, so that a new idea is opened up for the treatment of the industrial VOCs.

Description

technical field [0001] The invention relates to the technical field of VOCs purification, in particular to a filled-type low-temperature plasma cooperative adsorption catalytic VOCs purification device. Background technique [0002] VOCs (organic volatile gases) are volatile and easily form VOCs gas under normal temperature conditions, causing VOCs air pollution, destroying the ozone layer, and endangering human health and the ecological environment. Many VOCs substances can also cause urban chemical smog, cause secondary pollution, and cause greater harm to human health. In addition, VOCs, as one of the precursors of inhalable particulate matter, is an important cause of acid mist and smog. The production and emission of VOCs are related to industrial industries, including petrochemical, fine chemical, spraying, packaging and printing, semiconductor and electronic product manufacturing, wood-based panel and wooden furniture manufacturing, leather, paint, ink, adhesive pr...

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Problems solved by technology

[0006] Activated carbon has a large specific surface area, unique pore structure and high surface activity, so it is widely used as an absorbent for adsorbing VOCs. However, after activated carbon adsorbs certain pollutants, the purification effect decreases or even fails, and desorption is required. Regeneration, cumbersome operation, and easy to produce secondary pollution

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