System for treating high-concentration VOCs gas and workflow thereof

A high-concentration, gas-based technology, applied in gas treatment, air quality improvement, membrane technology, etc., to achieve mild reaction conditions, high processing efficiency, and stable operation

Inactive Publication Date: 2019-01-04
HEBEI UNIVERSITY OF SCIENCE AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, the shrinkage and rupture of ozone microbubbles produces hydroxyl radicals (OH), which can significantly improve the ozone oxidation ability and have a catalytic effect in the liquid phase. Microbubble ozonation can achieve nearly 100% ozone utilization. The ozone advanced oxidation treatment of bubble technology provides a new possible way for the treatment of high-concentration industrial VOCs gas, but there is no such application precedent so far

Method used

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  • System for treating high-concentration VOCs gas and workflow thereof

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Embodiment 1

[0021] A system for processing high-concentration VOCs gas, comprising an ozone generator 2, a microbubble generator 3 and a reactor 4, the inlet of the ozone generator 2 is connected to the outlet of the oxygen cylinder 1, and the outlet of the ozone generator 2 is connected to the outlet of the oxygen cylinder 1. The microbubble generator 3 is connected, and the water outlet / air port of the microbubble generator 3 is connected with the bottom of the reactor 4 and the reactor 4 adopts a closed structure, and the top of the reactor 4 is provided with a tail gas discharge pipe. The ozone generator 2 adopts an oxygen generator.

[0022] The working process of the system for processing high-concentration VOCs gas, the specific steps are as follows:

[0023] Step 1, the oxygen cylinder sends oxygen to the ozone generator, the ozone generator uses oxygen as the gas source to generate ozone gas, and the ozone gas enters the micro-bubble generator to generate ozone micro-bubbles;

...

Embodiment 2

[0027] A system for processing high-concentration VOCs gas, comprising an ozone generator 2, a microbubble generator 3 and a reactor 4, the inlet of the ozone generator 2 is connected to the outlet of the oxygen cylinder 1, and the outlet of the ozone generator 2 is connected to the outlet of the oxygen cylinder 1. The microbubble generator 3 is connected, and the water outlet / air port of the microbubble generator 3 is connected with the bottom of the reactor 4 and the reactor 4 adopts a closed structure, and the top of the reactor 4 is provided with a tail gas discharge pipe. The microbubble generator 3 adopts an OHR gas-liquid mixing tube generator.

[0028] The working process of the system for processing high-concentration VOCs gas, the specific steps are as follows:

[0029] Step 1, the oxygen cylinder sends oxygen to the ozone generator, the ozone generator uses oxygen as the gas source to generate ozone gas, and the ozone gas enters the micro-bubble generator to generat...

Embodiment 3

[0033] A system for processing high-concentration VOCs gas, comprising an ozone generator 2, a microbubble generator 3 and a reactor 4, the inlet of the ozone generator 2 is connected to the outlet of the oxygen cylinder 1, and the outlet of the ozone generator 2 is connected to the outlet of the oxygen cylinder 1. The microbubble generator 3 is connected, and the water outlet / air port of the microbubble generator 3 is connected with the bottom of the reactor 4 and the reactor 4 adopts a closed structure, and the top of the reactor 4 is provided with a tail gas discharge pipe. The inside of the reactor 4 is coated with an anti-corrosion layer and the inside of the reactor 4 is provided with an aqueous medium.

[0034] The working process of the system for processing high-concentration VOCs gas, the specific steps are as follows:

[0035] Step 1, the oxygen cylinder sends oxygen to the ozone generator, the ozone generator uses oxygen as the gas source to generate ozone gas, and...

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Abstract

The invention discloses a system for treating high-concentration VOCs gas and a work flow thereof. The system comprises an ozone generator, a microbubble generator and a reactor, wherein the inlet ofthe ozone generator is communicated with the outlet of an oxygen bottle; the outlet of the oxygen bottle is communicated with the microbubble generator; the water/gas outlet of the microbubble generator is communicated with the bottom of the reactor and adopts a sealed structure; a tail gas emission pipe is arranged at the top of the reactor. The system takes water as an absorbing/reaction medium,produces ozone/ VOCs gas mixed gas microbubble through the microbubble generator, performs rapid absorbing and rapid oxidation in the water medium to remove VOCs gas, can efficiently purify the high-concentration VOCs gas, and does not produce secondary pollutant during treatment; the system provides a novel available technology for high-concentration VOCs gas treatment.

Description

technical field [0001] The invention relates to the field of VOCs gas processing, in particular to a system for processing high-concentration VOCs gas. Background technique [0002] Volatile organic compounds (VOCs) emitted from industrial waste gas not only directly endanger human health, but also promote the formation of urban photochemical smog and haze, affecting the quality of regional air environment. Therefore, the treatment of industrial waste gas VOCs has become one of the research priorities in the field of air pollution prevention and control. one. At present, catalytic combustion, adsorption and biological treatment are widely used VOCs treatment technologies. Catalytic combustion can reduce the temperature of VOCs oxidative decomposition and produce less nitrogen oxides. The device is easy to maintain, but the catalyst used for combustion is expensive and easy to deactivate; the adsorption method can achieve zero tail gas emissions, but it is only suitable for ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/76B01D53/44
CPCB01D53/44B01D53/76B01D2251/104B01D2257/708Y02A50/20
Inventor 刘春郭延凯张静庞晓克陈晓轩张磊高立涛
Owner HEBEI UNIVERSITY OF SCIENCE AND TECHNOLOGY
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