A method and system for off-gas treatment of a synthetic rubber plant

By combining a two-stage adsorption treatment system and a circulating preheater, the problems of large equipment footprint, high energy consumption, and environmental protection in the tail gas treatment of synthetic rubber plants have been solved, achieving a safe, low-carbon, and environmentally friendly tail gas treatment effect.

CN122164201APending Publication Date: 2026-06-09CHINA PETROLEUM & CHEMICAL CORP +2
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHINA PETROLEUM & CHEMICAL CORP
Filing Date
2024-12-09
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

Existing synthetic rubber plants have complex exhaust gas treatment processes, large equipment footprints, high investment, high energy consumption, and risks of secondary pollution, making it difficult to meet environmental emission standards.

Method used

A two-stage adsorption treatment system is adopted, including a water washing tower, first and second adsorption devices, a regeneration condenser and an oil-water separator. Drying is carried out using a fluidized bed and a long-net drying box. Heat is recovered through a circulating preheater to reduce energy consumption, and no catalyst or auxiliary fuel is required.

Benefits of technology

It effectively removes VOCs from exhaust gas, reduces emission flow, meets environmental standards, reduces environmental impact, lowers operating costs and equipment investment, and achieves safety, low carbon and environmental protection.

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Abstract

This invention belongs to the field of synthetic rubber and discloses a method and system for treating exhaust gas from a synthetic rubber production plant. The system includes: a post-treatment unit of the synthetic rubber production plant, a water washing tower, a first booster fan, a first adsorption device, a coalescer, a circulating preheater, a second booster fan, a second adsorption device, a regeneration device, a regeneration condenser, and an oil-water separator. This invention provides a simple, catalyst-free, fuel-free, green, low-carbon, and environmentally friendly method and system suitable for treating the characteristics of exhaust gas from synthetic rubber plants, which can further reduce the energy consumption of synthetic rubber plants.
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Citation Information

Patent Citations

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