Low-concentration VOCs waste gas treatment method and device
A waste gas treatment device and waste gas treatment technology are applied in the direction of separation methods, chemical instruments and methods, lighting and heating equipment, etc., which can solve the problems of high operating costs and large investment in equipment, and achieve the effect of low operating costs
Pending Publication Date: 2022-04-12
广州黑马科技有限公司
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[0006] The present invention aims at the technical defects of the prior art, and provides a low-concentration VOCs waste gas treatment method and device to solve the technical problems of large equipment investment and high operating cost of the traditional treatment method
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[0023] Specific embodiments of the present invention will be described in detail below. In order to avoid too many unnecessary details, well-known structures or functions will not be described in detail in the following embodiments. Approximate language used in the following examples is for quantitative representations, indicating that certain variations in quantities are permissible without altering essential function. Unless defined otherwise, technical and scientific terms used in the following examples have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
[0024] In addition to functional magnetic materials, about 0.05% of dispersant, about 0.85% of binder and 0.07% of water temperature release agent are added to the raw materials for the production of magnetic electronic components. Usually the dispersant is n-butanol or glycerin, the release agent is zinc stearate, and the binder is polyvinyl alcohol (PVA for ...
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The invention provides a low-concentration VOCs waste gas treatment method and device. The method comprises the following steps: reducing the temperature of waste gas containing VOCs to below 20 DEG C through an evaporator of a dehumidification heat pump, then heating the waste gas to above 60 DEG C through a condenser of the heat pump, adding ozone into the waste gas after passing through a heat pump dehumidifier, fully mixing, and then entering a catalytic bed; the catalytic bed is filled with a catalyst, and the catalyst takes manganese oxide, copper oxide or cerium oxide as an active material and takes a molecular sieve or a porous material as a carrier. According to the invention, the operation cost is fully reduced, the equipment cost is lower, the treatment efficiency is high, the odor concentration is effectively reduced, and the method has good operation performance and outstanding technical advantages.
Description
technical field [0001] The invention relates to the technical field of air treatment, in particular to a low-concentration VOCs waste gas treatment method and device. Background technique [0002] Industrial production will emit a large amount of low-concentration volatile organic compounds (volatile organic compounds in English), referred to as VOCs. Exhaust gas containing low concentration of VOCs, VOCs in these exhaust gases is usually 200mg / m 3 . [0003] Traditionally, molecular sieve runners are used to concentrate and separate the waste gas into two parts, one part is relatively clean air containing traces of VOCs, which is directly emptied, and the other part is waste gas containing high concentrations of VOCs. Part of the exhaust gas is then discharged into the atmosphere after thermal combustion or catalytic combustion treatment. [0004] The disadvantage of the traditional treatment method is that the equipment investment is large, the operation cost is high, a...
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IPC IPC(8): B01D53/86B01D53/44B01D53/26F25B30/02F25B39/02F25B39/04F25B41/40F25B41/31
Inventor 马军刘新文黄毅烽
Owner 广州黑马科技有限公司