Novel process and device for treating organic waste gas through adsorption method

Abstract

The invention discloses a novel process and a novel device for treating organic waste gas through an adsorption method. In the process, the organic waste gas is sequentially subjected to the steps of pre-treatment, adsorption, desorption, condensation and gas-liquid separation to obtain recovered oil; a steam desorption treatment step and a vacuum decompressed desorption treatment step are combined in the desorption step, and an adsorbent which is saturated in adsorption in an adsorber is desorbed after the adsorption step is finished. According to the invention, the steam desorption treatment step and the vacuum decompressed desorption treatment step are combined in use, and the adsorbent which is saturated in adsorption in the adsorber is desorbed after the absorption step is finished, therefore, the amount of steamed steam and electricity is substantially reduced, the practical problem of high economic operation cost is solved,, the treatment process is simple, the investment is low, and the waste gas is discharged after being treated.

Description

technical field [0001] The invention relates to a novel adsorption method organic waste gas treatment process and its device, which can carry out adsorption treatment on waste gas containing organic components, so as to achieve emission reduction and standard discharge. Background technique [0002] In the prior art, the flow chart of the commonly used adsorption organic waste gas treatment process is as follows: figure 1 As shown, the adsorption tank is used to adsorb the pretreated organic waste gas (pressurization or decompression treatment, filtration treatment, cooling treatment) until the adsorbent in the adsorption tank is nearly saturated, and then desorption treatment (using water vapor ) to desorb the oil and gas in the adsorption tank to be transported to the hot side channel of the condenser for condensation treatment. Among them, the non-condensable gas output from the hot side channel can be adsorbed again, and the condensate is separated by a gas-liquid separa...

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Problems solved by technology

[0004] Aiming at the deficiencies of the prior art, the present invention provides a novel adsorption method organic waste gas treatment process and its device, which can greatly reduce the consumption of steam and electricity, solve the practical problem of high economic operation cost, and the treatment process is simple , less investment, can meet the emission standards after exhaust gas treatment

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