VOCs treatment process and equipment using heterogeneous catalytic oxidation

A heterogeneous catalytic oxidation and process technology, which is applied in the field of VOCs treatment and volatile organic compounds, can solve the problems of unsuitable exhaust gas, slow degradation rate, and inability to meet the emission standards, and achieve synergistic effects, oxidation effects, and strong oxidation effects. Effect

CN105771630AInactive Publication Date: 2016-07-20NANJING GW ENVIRONMENT ENG
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2016-07-20
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses VOCs treatment process and equipment using heterogeneous catalytic oxidation. The VOCs treatment process is characterized in that O3, H2O2, UV and hydraulic cavitation effects are integrated to allow the oxidant and the oxidation manner to have a synergic effect so as to generate a large amount of hydroxyl radicals to achieve the oxidation effect. The VOCs treatment process and equipment has the advantages that the O3 / H2O2 / UV / hydraulic cavitation technologies are integrated to generate a large amount of hydroxyl radicals, and the oxidation effect is increased greatly; the equipment is operated under normal temperature and normal pressure and is simple and safe to operate and capable of synchronously desulfurizing, removing heavy metals and removing waste gas components such as dioxin.
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Description

technical field

[0001] The patent of the invention relates to a treatment of volatile organic compounds in exhaust gas by using heterogeneous catalytic oxidation technology, which is a new type of VOCs treatment technology and belongs to the field of exhaust gas treatment. technical background

[0002] VOCs is the English abbreviation of volatile organic compounds (volatileorganiccompounds). The World Health Organization defines total volatile organic compounds as a general term for volatile organic compounds with a melting point below room temperature and a boiling point between 50 and 260 °C. In environmental protection work, countries have introduced the concept of VOCs, emphasizing their photochemical reactivity, health toxicity, etc., but sometimes they also refer to all gaseous organic compounds. Under the action of ultraviolet light, VOCs can generate photochemical smog and secondary pollutants. Phenomena such as acid rain, photochemical pollution, and urban smog are...

Examples

Embodiment 1

[0040] Such as figure 1 As shown, in order to verify the VOCs treatment effect of the patent of the present invention, a pilot test of the patented technology of the invention was carried out. In the pilot test, the bottom of the spray tower has a diameter of 0.8m and a height of 5m. The bottom of the spray tower is connected to the ozone generator 11 and the air inlet 12. The inner bottom of the spray tower is provided with a corrugated plate 10 and a Pall ring 9. The height of the corrugated plate 10 is 0.2m, and the height of the Pall ring 9 is 0.2m. An atomizing nozzle is arranged in the middle of the spray tower, and the atomizing nozzle is connected to the spray liquid storage tank 1 through the pipeline connected by the pump 2. The pipeline is equipped with a hydraulic cavitator 4 and a UV catalytic lamp 3 to perform ultraviolet catalysis and hydraulic cavitation on the spray liquid, and the H 2 o 2 Add it into the pipeline through the metering pump 2; install the cat...

Embodiment 2

[0047] In order to verify the VOCs treatment effect of the patent of the present invention, a pilot test of the patented technology of the invention was carried out. In the pilot test, the bottom of the spray tower has a diameter of 0.8m and a height of 5m. The bottom of the spray tower is connected to the ozone generator 11 and the air inlet 12. The inner bottom of the spray tower is provided with a corrugated plate 10 and a Pall ring 9. The height of the corrugated plate 10 is 0.2m, and the height of the Pall ring 9 is 0.2m. An atomizing nozzle is arranged in the middle of the spray tower, and the atomizing nozzle is connected to the spray liquid storage tank 1 through the pipeline connected by the pump 2. The pipeline is equipped with a hydraulic cavitator 4 and a UV catalytic lamp 3 to perform ultraviolet catalysis and hydraulic cavitation on the spray liquid, and the H 2 o 2 Add it into the pipeline through the metering pump 2; install the catalytic filler 7 about 1m dow...