Volatile Organic Compound Treatment Unit
A technology for organic compounds and treatment devices, applied in chemical instruments and methods, separation of dispersed particles, separation methods, etc., can solve problems such as high difficulty, low condensation efficiency, and inapplicability of VOC
Active Publication Date: 2017-06-30
EASTERN RAINBOW ENG
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Problems solved by technology
[0007] (1) A large amount of water vapor and ice water required for condensation are used during desorption, so it consumes a lot of energy;
[0008] (2) It is not suitable for waste gas treatment containing various VOCs, because after condensation, it is necessary to separate various VOCs, which is difficult;
[0009] (3) It is not suitable for the treatment of low-concentration VOC, because the benefits of recovery are obviously not proportional to the cost of energy consumed;
[0010] (4) The condensation efficiency is not high, the condensed gas will also contain VOC, and the condensed water will also contain VOC
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[0019] Please refer to figure 1 , In the first embodiment of the present invention, a VOC treatment device includes two absorption / desorption towers 10a, 10b, an exhaust gas supply pipeline 20, an adsorbed gas discharge pipeline 30 and a catalytic oxidation treatment unit 40.
[0020] Each of the absorption / desorption towers 10a, 10b has an inlet port 11a, 11b and an exhaust port 12a, 12b. The interior of the adsorption towers 10a, 10b is filled with adsorbent materials that can adsorb VOC. The selection of the adsorbent materials depends on the needs. Depending on the VOC to be treated, common adsorbent materials include but are not limited to activated carbon and zeolite.
[0021] The waste gas supply pipeline 20 is alternately communicated with the intake ends 11a, 11b of the absorption / desorption towers 10a, 10b, and the waste gas supply pipeline 20 is used to guide the waste gas containing VOC, so that the absorption / desorption tower 10a, 10b carry out the adsorption ope...
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A volatile organic compound (VOC) treatment device, including at least two absorption / desorption towers, a waste gas supply pipeline, a gas discharge pipeline after adsorption and a catalyst oxidation treatment unit, the waste gas supply pipeline is alternately connected to These absorption / desorption towers allow the absorption / desorption tower to perform adsorption operations, and the catalyst oxidation treatment units are also alternately connected to these absorption / desorption towers to perform desorption operations. The waste gas supply pipeline and catalyst oxidation treatment The units are not connected to the same absorption / desorption tower at the same time, and the catalyst oxidation treatment unit includes a heat exchanger, a catalyst reactor, an air intake unit, and an exhaust unit. The invention combines the absorption / desorption tower and the catalyst oxidation treatment unit to effectively remove VOC in the exhaust gas, and has the advantages of low construction cost, easy operation and maintenance, and the like.
Description
technical field [0001] The invention relates to a waste gas treatment device, in particular to a volatile organic compound treatment device. Background technique [0002] The tail gas or indoor space emitted by factories often contains volatile organic compounds (hereinafter referred to as VOC), which are likely to cause harm to the environment and human body, so corresponding treatment must be implemented to reduce its content. [0003] The scrubber is a common VOC treatment device. It is removed from the gas phase by dissolving VOC in the liquid phase. The scrubbing liquid used is usually water. Therefore, the VOC suitable for scrubber treatment must have a high solubility in water. , so non-water-soluble VOCs are not suitable for treatment with scrubbers. In addition, the use of scrubbers to treat VOC is bound to be accompanied by the generation of VOC-containing wastewater, and the wastewater also needs to undergo additional treatment procedures and generate wastewater ...
Claims
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IPC IPC(8): B01D53/86
Inventor 赖正昕高庆珅
Owner EASTERN RAINBOW ENG