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Adsorbent bed circulating desorption distributary recovery regeneration process and device thereof

A regeneration device and adsorption bed technology, applied in separation methods, chemical instruments and methods, and other chemical processes, etc., can solve the problems of difficulty in amplification and affect the control of the temperature of the adsorption bed, reduce equipment investment and energy consumption, and facilitate the Refined recycling and the effect of ensuring system safety

Inactive Publication Date: 2007-12-05
TONGJI UNIV
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Problems solved by technology

However, when heated directly, hot spots will appear on the contact surface of granular activated carbon, which will affect the control of the temperature of the adsorption bed, and it is difficult to scale up. In addition, further research is needed on the connection and insulation of the electrodes. [5，6]

Method used

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  • Adsorbent bed circulating desorption distributary recovery regeneration process and device thereof

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Embodiment 1- Embodiment 3

[0033] Connect the following components as shown in Figure 1, and those skilled in the art can implement it smoothly. The device of the present invention consists of a gas filter adopting AF5-N type, a flame arrester adopting mesh type HGS07, two adsorbers filled with adsorbent adopting CAU5-G type, a main fan adopting BF9-26NO5A type, and a thermal The exchanger adopts AAE-2-B type, a circulating air heater adopts GL-5 type, a gas condenser adopts TLS-10-12-400 type, and a circulating fan adopts BF9-264A type, supplementing the gas source 31 uses nitrogen, oxygen content measurement probe 3 uses TB2A zirconia oxygen probe, the automatic control system uses PLC program controller, and the model of the program-controlled valve is KVD pneumatic disc valve.

[0034] When the system is running, the toluene-containing exhaust gas is removed by the filter 1, and then enters the subsequent recovery and regeneration system through the flame arrester 2. The following uses the adsorber ...

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Abstract

The present invention belongs to the field of chemical separating and environment protecting technology, and is especially circular desorbing, shunting, recovering and regenerating process in an adsorbing bed and the apparatus. The technological process includes circular desorbing on hot gas in an adsorbing bed, and by-pass heat exchange and condensing recovery of partial desorbed gas flow. The present invention has the advantages low power consumption, low cost and high purity of the recovered organic matter, and is especially suitable for use in chemical adsorbing and separating process, contaminated gas purifying, organic solvent recovery, etc.

Description

technical field [0001] The invention belongs to the technical fields of chemical separation and environmental protection, and in particular relates to a method and a device for recycling, desorbing, splitting, recovering and regenerating an adsorption bed. Background technique [0002] Adsorption is a traditional separation technology widely used in chemical industry, environmental protection and other fields. The desorption recovery in the adsorption process is one of the cores of the whole process. Traditional desorption methods include water vapor, hot gas desorption, pressure swing desorption, and solvent replacement. In recent years, new desorption methods such as electrothermal method, oxidation regeneration method, and ultrasonic regeneration method have emerged. [1，2] . The water vapor and hot gas desorption method is suitable for the desorption of low-molecular hydrocarbons with low boiling points and saturated carbon of aromatic organic substances. The enthalpy o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/30B01D53/44
Inventor 羌宁裴冰李婕
Owner TONGJI UNIV
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