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High-efficiency waste gas recovery units typically employ a combined "condensation + adsorption" process. By first condensing and liquefying the gas and subsequently purifying it through adsorption, the system achieves efficient waste gas recovery and ensures emissions meet regulatory standards.
Product Overview
This unit utilizes combined "condensation + adsorption" technology, primarily for the recovery and treatment of volatile organic compounds (VOCs) in processes such as petroleum storage, transportation, and chemical production. It converts organic components in the waste gas from a gaseous to a liquid state for recovery and reuse; this not only reduces pollution but also generates economic value by reclaiming valuable solvents or petroleum products.
Technical Principles and System Composition
The unit consists of two main components-a condensation unit and an adsorption unit-working in tandem:
Condensation Unit: Uses a refrigeration compressor to cool and condense the bulk of the high-concentration waste gas, liquefying it for recovery. Multi-stage condensation temperatures (e.g., 3°C, -40°C, -75°C) can be configured to target components with varying boiling points.
Adsorption Unit: Residual waste gas that was not condensed enters an adsorption tank filled with activated carbon for deep purification. The system typically employs a dual-tank alternating design; while one tank is adsorbing, the other undergoes desorption and regeneration, ensuring continuous 24-hour operation.
Key Parameters (Reference Values)
- Recovery Rate: Typically exceeds 95%.
- Emission Concentration: Treated tail gas concentration can be reduced to below 20 g/m³.
- Explosion-proof Rating: Suitable for flammable and explosive environments; ratings such as Ex d IIB T4 are available.
Key Advantages
- High-Efficiency Recovery: Recovery rates exceed 95%, effectively reclaiming valuable solvents or petroleum products.
- Compliance with Standards: High purification efficiency ensures tail gas emissions meet national environmental regulations.
- Safe and Reliable: Features multiple safety protection mechanisms and high explosion-proof ratings.
- Stable Operation: Utilizes fully automatic PLC control for long-term, stable operation.
Application Scenarios
- Petroleum Storage and Transportation: Vapor recovery at gas stations and oil depots. Chemical production: Recovery of organic solvents volatilized during processes such as reactor operation and mixing.
- Other industries: Suitable for the treatment of VOCs generated in sectors such as printing, coating, and pharmaceuticals.
- For specific model selection, customization based on factors such as waste gas composition, concentration, and airflow volume is recommended.
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