Mobile enrichment-fixing catalytic oxidation type organic waste-gas treating apparatus

Abstract

The invention provides a mobile enrichment-fixing catalytic oxidation type organic waste-gas treating apparatus, and belongs to the field of organic waste-gas treatment. The apparatus helps to solve the waste gas treatment problem of a pollution source in the absence of sufficient electric power or fuel gas supplement and usage conditions. The apparatus comprises: a plurality of mobile enrichment devices, a fixing catalytic oxidation treatment device and a PLC control system; the plurality of mobile enrichment devices are cooperated with the fixing catalytic oxidation treatment device for work; and after field operation of the pollution source is finished, the plurality of mobile enrichment devices are moved nearby the fixing catalytic oxidation treatment device via a manual or mechanical mode, and is rapidly connected with the fixing catalytic oxidation device. The apparatus is mainly applied to organic waste-gas pollution sources without sufficient electric power or fuel gas supplement and the usage conditions; the enrichment device is movable and is capable of effectively treating the waste gas of the pollution source; and the adsorbent is reusable and no solid waste pollution is generated, and thus operation cost is reduced.

Description

technical field [0001] The invention relates to a treatment device for organic waste gas, which belongs to the field of organic waste gas treatment, and in particular to a treatment device for organic waste gas under the condition that there is no sufficient power or gas supply. Background technique [0002] In current engineering practice, the methods for treating organic waste gas are mainly adsorption method and catalytic combustion method. [0003] The adsorption method is to use activated carbon with adsorption capacity to adsorb organic waste gas, and transfer volatile organic compounds from the waste gas to the activated carbon adsorber. This treatment method is simple and easy, but the adsorber cannot be regenerated and reused. After that, it must be replaced, which not only produces industrial solid waste, but also increases operating costs, and the waste activated carbon is rich in a large amount of organic matter, which may cause safety hazards such as combustion ...

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Problems solved by technology

[0003] The adsorption method is to use activated carbon with adsorption capacity to adsorb organic waste gas, and transfer volatile organic compounds from the waste gas to the activated carbon adsorber. This treatment method is simple and easy, but the adsorber cannot be regenerated and reused. After that, it must be replaced, which not only produces industrial solid waste, but also increases operating costs, and the waste activated carbon is rich in a large amount of organic matter, which may cause safety hazards such as combustion and pollutant release under certain conditions; the catalytic combustion method is under the action of an oxidation catalyst. Combustion of organic waste gas below the ignition temperature to generate CO 2 and H 2 O, the temperature range is 200-500°C. Compared with the direct combustion method, the catalytic combustion method can oxidize and decompose at low temperature, but the catalytic combustion method is not suitable for the treatment of large air volume and low-concentration organic waste gas, because a large amount of fuel needs to be added to support combustion, so that Increased processing costs, and easy to cause secondary pollution

[0004] For organic waste gas pollution sources with electricity or gas conditions, the treatment method in the prior art is mainly the integrated activated carbon adsorption concentration-catalytic oxidation method, that is, the process of combining an activated carbon adsorption bed and a catalytic oxidation bed, and the adsorption bed sequentially adsorbs the organic waste gas Treatment, using hot air to desorb the adsorption bed body in turn, and the concentrated waste gas from the desorption is subjected to catalytic oxidation treatment through the catalytic bed; through this process, the adsorbent can not only be automatically regenerated, which saves operating costs, but also organic pollutants are adsorbed is then oxidized in situ to CO 2 and H 2 O, there is no secondary transfer and generation of pollutants; however, the integrated activated carbon adsorption concentration-catalytic oxidation method requires sufficient power or gas supply and use conditions at the pollution source discharge site, which limits its use in pollution sources without the above conditions. Applications

For organic waste gas pollution sources with electricity or gas conditions, the existing technology is mainly a sacrificial activated carbon adsorption transfer method, that is, using activated carbon to adsorb organic waste gas, transfer volatile organic compounds from the waste gas to activated carbon, and replace it with a new one after the adsorption is saturated. activated carbon; this treatment method is simple and easy, and the initial investment is low, but the adsorbent cannot be regenerated and reused, and must be replaced after reaching adsorption saturation, resulting in industrial solid waste and increased operating costs, and the saturated activated carbon is rich in A large amount of organic matter may cause safety hazards such as combustion and pollutant release under certain conditions

[0005] To sum up, for pollution sources that do not have sufficient electricity or gas supply and use conditions, research reports on this aspect in the prior art are relatively rare

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