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VOC gas treatment method and VOC gas treatment device using same

A technology of gas treatment and treatment method, which is applied in the field of VOC gas treatment devices and removable storage VOC gas treatment devices, and can solve problems such as fire hazards, environmental pollution, waste of resources, etc.

Inactive Publication Date: 2020-12-25
ZHEJIANG OCEAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, when the domestic oil storage tanks are cleaned, the ventilation stage will open the manhole to ventilate and cool down. In the forced ventilation stage, the blower will force ventilation from the manhole, and a large amount of VOC gas will be discharged from the manhole, which wastes resources, pollutes the environment and has huge risks. fire hazard

Method used

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  • VOC gas treatment method and VOC gas treatment device using same
  • VOC gas treatment method and VOC gas treatment device using same

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Embodiment Construction

[0022] The VOC gas treatment device includes an impurity removal treatment part. First, the air in the VOC is removed through a treatment tank; specifically, it includes: a gas flow path, a blower, a plurality of valves and a gas treatment tank. See attached figure 1 , VOC and moisture-containing air are passed from flow path 1 and blower 2 to VOC adsorption towers 4a, 4b through valves 3a, 3b, which contain VOC and moisture-selective VOC adsorbents (in adsorption towers 4a, 4b), through multiple adsorption The tower is set up to improve the adsorption effect and processing capacity. Depending on the adsorption capacity, the adsorption sequence of the adsorption tower can be controlled through the valves 3a and 3b, such as entering the adsorption tower 4a first, and then entering the adsorption tower 4b, thereby optimizing the adsorption capacity in the adsorption tower. When supplied at a high temperature, such as 50°C, only VOC and moisture are selectively adsorbed, and the...

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Abstract

Air containing volatile organic compounds (VOC) and moisture is introduced into a selective adsorption tower, the VOCs and the moisture are adsorbed by an adsorbent, and the air is released out of thesystem. VOC is introduced into a thermal adsorption tower to be in contact with a heating medium, the temperature is increased, and the VOC is introduced into the other moisture selective adsorptiontower to adsorb moisture, so that the moisture is removed. Finally, the VOC treated through a high-temperature regeneration rotation method is recycled through a low-temperature VOC liquefaction method, and according to the low-temperature VOC liquefaction method, nitrogen is used to liquefy and recycle the VOC in a low-temperature liquefaction condenser. Specifically, the VOC gas is condensed andrecycled through nitrogen circulation of a nitrogen sealed system.

Description

technical field [0001] The invention belongs to the technical field of waste gas treatment devices, and in particular relates to a removable storage VOC gas treatment device, especially a treatment device for VOC gas in the field of petroleum refining. Background technique [0002] VOCs have a melting point below room temperature and a boiling point in the The general term for volatile organic compounds, mainly including hydrocarbons, aromatic hydrocarbons, alcohols, aldehydes, ketones, lipids, amines and organic acids, etc., which have the characteristics of strong volatility, special odor, irritation and toxicity , will not only adversely affect the ecological environment, but also cause serious harm to human health. [0003] China's industrial development has entered a new stage, and the increasingly prominent environmental problems have affected people's normal work and life. Environmental problems have attracted more and more attention. Therefore, in this situation, ...

Claims

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Application Information

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IPC IPC(8): B01D53/00B01D53/02B01D53/26
CPCB01D53/002B01D53/005B01D53/02B01D53/261B01D2257/708B01D2257/80B01D2259/4009Y02A50/20
Inventor 朱根民刘红凯高良军杨佳豪周凡
Owner ZHEJIANG OCEAN UNIV
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