Purification system for VOC waste gas in liquid state at normal temperature
A purification system and waste gas technology, which are applied in air quality improvement, chemical instruments and methods, dispersed particle separation, etc., can solve the problems of low adsorption saturation, insufficient oxidation, and high operating costs, achieve sufficient adsorption, improve adsorption effect, The effect of avoiding pollution
Pending Publication Date: 2022-04-12
大连理工大学洛阳研究院
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Problems solved by technology
However, the method of using activated carbon has the problems of low adsorption saturation, difficult regeneration, high operating costs, and easy damage during transportation, and the activated carbon after adsorption saturation can be desorbed by catalytic oxidation to realize the reuse of activated carbon. In the process, the oxidation will be insufficient due to the decline of the catalyst, and then the emission will exceed the standard
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[0031] Such as figure 1 As shown, the present invention is a purification system for VOC waste gas in a liquid state at normal temperature, including an absorption liquid delivery backflow mechanism, a VOC waste gas delivery pipeline 22 and a double-liquid absorption reactor; the VOC waste gas delivery pipeline 22 is used to The VOC waste gas to be treated is transported in the double-liquid absorption reactor, and the absorption liquid delivery and return mechanism is used to transport the double-liquid absorption liquid to the double-liquid absorption reactor and for the return of the double-liquid absorption liquid with VOC absorbed, and the double-liquid absorption reactor is used for supplying The double-liquid absorption liquid adsorbs the VOC in the VOC waste gas.
[0032] combine figure 2As shown, the double-liquid absorption reactor includes a main absorption tower 3 , and the main absorption tower 3 is provided with a liquid supply pipeline, a return pipeline, an a...
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The invention relates to a purification system for VOC waste gas in a liquid state at normal temperature. The purification system comprises an absorption liquid conveying backflow mechanism, a VOC waste gas conveying pipeline and a double-liquid absorption reactor, the VOC waste gas conveying pipeline is used for conveying VOC waste gas to be treated into the double-liquid absorption reactor, the absorption liquid conveying and backflow mechanism is used for conveying double-liquid absorption liquid into the double-liquid absorption reactor and enabling the double-liquid absorption liquid adsorbed with VOC to flow back, and the double-liquid absorption reactor is used for enabling the double-liquid absorption liquid to adsorb VOC in the VOC waste gas. The device is used for efficiently absorbing VOC in waste gas, and emission of VOC is prevented from exceeding the standard.
Description
technical field [0001] The invention relates to the field of organic waste gas treatment, in particular to a purification system for VOC waste gas which is liquid at normal temperature. Background technique [0002] VOC is the English abbreviation of volatile organic compounds (volatile organic compounds). VOC in the general sense is command volatile organic compounds; but the definition in the sense of environmental protection refers to a type of active volatile organic compounds, that is, the type of volatile organic compounds that will cause harm. For example, the cooling oil sprayed during the rolling process of aluminum products such as finished rolling aluminum strips and aluminum foils is a kind of VOC. Due to the uneven heating of the rolls of the rolling mill, the surface of the aluminum products will be uneven. Spray cooling oil on the working surface of the rolls. The cooling oil takes away part of the heat on the roll surface, so that the heat on the working sur...
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IPC IPC(8): B01D53/18
CPCY02A50/20
Inventor 张俪文方世杰熊金强张旦闻王洪陈伟杨德辽
Owner 大连理工大学洛阳研究院