VOCs adsorption-plasma catalytic regeneration device and treatment system and process

A regeneration device, adsorption and catalysis technology, applied in the field of large air volume organic waste gas treatment, ultra-low concentration field, can solve the problem of VOCs adsorption and purification cannot be completed in one device, reduce equipment and site investment, reduce treatment costs, improve The effect of removal efficiency

Active Publication Date: 2020-07-31
ZHEJIANG UNIV OF TECH
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  • Abstract
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  • Claims
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Problems solved by technology

[0004] The first purpose of the present invention is to overcome the defects in the prior art that the adsorption and purification of ultra-low concentration and large air volume VOCs cannot be completed in one device, and provide a VOCs adsorption-plasma catalytic regeneration device

Method used

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  • VOCs adsorption-plasma catalytic regeneration device and treatment system and process
  • VOCs adsorption-plasma catalytic regeneration device and treatment system and process

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Embodiment Construction

[0032]The present invention will be further described below in conjunction with accompanying drawing.

[0033] like figure 1 As shown, a volatile organic compound treatment system includes an adsorption main fan 1-1, a desorption regeneration fan 1-2, a dry filter box 2, a first adsorption regeneration composite device 3, a second adsorption regeneration composite device 4 and an electric motor Flap valve group. The electric flap valve group includes a first flap valve 5-1, a second flap valve 5-2, a third flap valve 5-3, a fourth flap valve 5-4, and a fifth flap valve 5-5 , the sixth flap valve 5-6, the seventh flap valve 5-7 and the eighth flap valve 5-8. The input port of the adsorption main blower 1-1 is connected to the waste gas input pipe, and the output port is connected to the first air port of the three-way valve 6; the second air port of the three-way valve 6 is connected to the input port of the dry filter box 2. The third air port of the three-way valve 6 is co...

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Abstract

Aiming at the defects of high equipment investment, high operation cost, large occupied area and the like in an ultralow-concentration and large-air-volume organic waste gas mainstream treatment process, the invention discloses a VOCs adsorption-plasma catalytic regeneration device and a treatment system and process. The adsorption-plasma catalytic regeneration device comprises a gas tank, a plasma discharge unit and an adsorption/catalyst unit. The plasma discharge unit comprises a plasma pulse power supply and a flat discharge structure. The adsorption/catalyst unit is arranged between the discharge electrodes and adopts a three-section design, namely a high-efficiency adsorption catalysis section, a buffer section and a medium-efficiency adsorption catalysis section. The high-efficiencyadsorption catalysis section is filled with a noble metal modified molecular sieve; the buffer section is hollow; and the medium-efficiency adsorption catalytic section is filled with a common metal-loaded molecular sieve. The whole device realizes the integration of adsorption, desorption and treatment units, and simplifies the treatment system. The whole process is controlled by a PLC, 24-hourcontinuous and stable operation is achieved, and VOCs are efficiently removed.

Description

technical field [0001] The invention belongs to the technical field of ultra-low concentration and large air volume organic waste gas treatment. It specifically relates to a set of volatile organic compound adsorption and regeneration compound device and its treatment process. Background technique [0002] Ultra-low concentration, large air volume organic waste gas generally means that the concentration of VOCs (volatile organic compounds) in the waste gas is less than 200mg / m 3 , air volume greater than 5000m 3 / h of exhaust gas. This characteristic exists in the exhaust gas emitted by painting, paint production, printing and other industries in the industry. With the state's control of fugitive emissions, the treatment of this type of waste gas is particularly prominent. [0003] VOCs treatment technologies are generally divided into recycling and degradation and destruction technologies. For such exhaust gases with ultra-low concentrations, large air volumes and compl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D46/00B01D46/12B01D46/30B01D46/02B01D53/04B01D53/86B01D53/44
CPCB01D46/0008B01D46/02B01D46/10B01D46/30B01D53/04B01D53/8687B01D2257/708B01D2259/40086Y02A50/20
Inventor 叶志平华俊杰叶珍王家德
Owner ZHEJIANG UNIV OF TECH
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