Process gas purification treatment method

Abstract

The invention discloses a process gas purification treatment method. A gas absorption system consists of multiple stages of absorption systems, wherein each stage of absorption system consists of a certain number of absorption devices; the numbers of the absorption devices of different stages of absorption systems are different, and the styles are the same or different; absorption liquid is pushed reversely according to gas flow; all the absorption devices of each stage of absorption system are connected in series with one another through balance communicating pipes; liquid levels in circulating tanks of all the absorption devices keep a certain liquid level difference in the flowing direction of the absorption liquid so as to take the liquid level difference as power for forwards pushing absorption circulating liquid; clean liquid enters from a purified gas outlet end, and liquid is discharged from a process gas inlet end; the liquid discharging concentration is adjusted according to a liquid feeding amount; the liquid in each circulating tank is automatically balanced and adjusted through an absorption liquid output end adjustment valve and an absorption liquid inlet end adjustment valve. The process gas purification treatment method effectively solves the difficulty which cannot be solved by a conventional absorption device; the absorption efficiency is improved, and the energy consumption is reduced; continuous and stable operation can be realized; the application and popularization prospect is wide.

Description

technical field [0001] The invention relates to a process gas purification treatment method. Background technique [0002] There are many methods for purifying the process gas produced in the production process of the industrial special chemical industry. Among them, it is one of the more commonly used methods to purify the impurities in the process gas or recover the useful components through the absorption liquid circulation or direct absorption method, but there are also common problems. Secondary pollution, low absorption efficiency, unstable system, continuous, low degree of automation, high energy consumption and other deficiencies. Contents of the invention [0003] The object of the present invention is to provide a method for purifying process gas with improved absorption efficiency, reduced energy consumption, and continuous and stable operation. [0004] Technical solution of the present invention is: [0005] A process gas purification treatment method, inclu...

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Problems solved by technology

[0002] There are many methods for purifying the process gas produced in the production process of the industrial special chemical industry. Among them, it is one of the more commonly used methods to purify the impurities in the process gas or recover the useful components through the absorption liquid circulation or direct absorption method, but there are also common problems. Secondary pollution, low absorption efficiency, unstable system, continuous, low degree of automation, high energy consumption, etc.

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