A highly efficient organic waste gas recovery device and process

By independently running the vacuum pump in the organic exhaust gas recovery system and setting up a buffer tank and exhaust condenser, the problems of unstable membrane separation effect and low efficiency of the adsorption system are solved, and more efficient and stable organic exhaust gas treatment and longer equipment service life are achieved.

CN112755719BActive Publication Date: 2025-03-21ZHEJIANG TONGSHAN ENVIRONMENTAL PROTECTION TECH CO LTD
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Patent Information

Application Number
CN202110057156.3
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2021-01-15
Publication Date
2025-03-21
Estimated Expiration
2041-01-15

AI Technical Summary

Technical Problem

In the existing organic waste gas recovery system, the membrane separation effect is unstable, the membrane device is vulnerable, the service life is short, the processing efficiency is low, and the device is complex.

Method used

The membrane separation system and adsorption system are operated separately by an independent vacuum pump. The exhaust gas is pretreated through a condensing system composed of a buffer tank and exhaust condenser, thereby improving the stability of the membrane separation system and the desorption efficiency of the adsorption system.

Benefits of technology

It improves the working stability of the membrane separation system and the processing efficiency of the adsorption system, extends the service life of the membrane and adsorption fillers, simplifies the device structure, and reduces production costs.

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Abstract

The present invention provides an organic waste gas recovery device and process, belonging to the technical field of organic waste gas treatment. It includes a condensation system, a membrane separation system, an adsorption system, and a vacuum system, wherein the vacuum system includes a vacuum pump 1 and a vacuum pump 2 that operate independently, wherein the inlet and outlet of the vacuum pump 1 are respectively connected to the membrane separation system and the condensation system, and the organic gas separated in the membrane separation system is circulated back to the condensation system by the vacuum pump 1; the inlet and outlet of the vacuum pump 2 are respectively connected to the adsorption system and the condensation system; the organic gas desorbed in the adsorption system is circulated back to the condensation system by the vacuum pump 2. In the present invention, the membrane separation system and the adsorption system are respectively separated by independent vacuum pumps to separate organic gas and air and desorb organic matter. In this way, the two systems do not interfere with each other, and the intermittent vacuum operation of the adsorption system will not affect the continuous vacuum operation of the membrane separation system, which effectively ensures the working stability of the membrane separation system.
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