Double-temperature desorption device and method
A temperature control device and desorption technology, which are applied in chemical instruments and methods, separation methods, and dispersed particle separation, etc., can solve the problems of reduced adsorption efficiency of adsorption runners and unclean desorption of high-boiling substances.
Pending Publication Date: 2022-04-12
S Y TECH ENG & CONSTR CO LTD
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Problems solved by technology
It is used to solve the problem that the desorption of high boiling point substances in the adsorption wheel is not clean, which causes the adsorption efficiency of the adsorption wheel to decrease
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[0018] In order to avoid unclean desorption of high boiling point substances in the adsorption rotor, the adsorption efficiency of the adsorption rotor is reduced. Embodiments of the present invention provide a dual-temperature desorption device and method. In order to make the purpose, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below with examples in conjunction with the accompanying drawings.
[0019] Commonly used organic gas adsorbents are: activated carbon, zeolite, activated alumina, etc. Zeolites for volatile organic compounds (VOC S , Volatile Organic Compounds) have strong adsorption, so the zeolite runner made of zeolite as adsorbent is the best way to deal with VOC S commonly used equipment. At present, the desorption temperature of the zeolite wheel device is generally set between 200°C and 210°C. Setting this temperature has the following advantages: most substances can be desor...
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The invention discloses a dual-temperature desorption device and a dual-temperature desorption method, which are used for carrying out heating desorption on an adsorption rotating wheel. The double-temperature desorption device comprises a first air duct, a second air duct, a first heat source and a second heat source. The first air duct and the second air duct are installed on one side of the adsorption rotating wheel, and a first air outlet of the first air duct and a second air outlet of the second air duct are sequentially arranged in the rotating direction of the adsorption rotating wheel. The first air channel is used for conveying first desorption gas, and the first heat source is installed on the first air channel and used for heating the first desorption gas. The second air channel is used for conveying second desorption gas, and the second heat source is installed on the second air channel and used for heating the second desorption gas. The temperature of the second desorption gas at the first air outlet is higher than that of the first desorption gas at the second air outlet. Two desorption temperatures are adopted to desorb the adsorption rotating wheel, and desorption of high-boiling-point substances can be achieved at the high temperature. Therefore, the desorption efficiency of the double-temperature desorption device is improved while low energy consumption is maintained.
Description
technical field [0001] The invention relates to the technical field of waste gas treatment, in particular to a dual-temperature desorption device and method. Background technique [0002] The use of rotors containing adsorbents is a common means of treating organic waste gases. After the adsorption wheel works for a period of time, since the adsorbed components of the adsorbent reach saturation, the adsorbent needs to be desorbed to restore its adsorption capacity. The commonly used desorption method is temperature desorption. Heating desorption is a desorption method in which the saturated adsorbent is heated up to precipitate the adsorbate from the adsorbent, and the adsorbent can be directly heated by hot air flow. Temperature desorption can desorb most of the substances. However, since the organic waste gas to be treated often contains a small amount of high-boiling point substances, the high-boiling point substances cannot be desorbed well at the conventional tempera...
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IPC IPC(8): B01D53/06
Inventor 王大鹏李卫徐刚吴迪
Owner S Y TECH ENG & CONSTR CO LTD