Luoyang Wohong VOCs tail gas recovery device, combined process of compression condensation and membrane separation

Luoyang Wohong VOCs tail gas recovery device, combined process of compression condensation and membrane separation

LuoyangWohong PetrochemicalThe VOCs exhaust gas recovery device of Equipment Co., Ltd. adopts a combination process of compression condensation and membrane separation. This process focuses on physical separation and is mainly aimed at organic compounds with medium to high concentrations and recycling valuewaste gas treatmentscene

The process flow consists of three units. The exhaust gas is first pressurized by a compressor to provide driving force for subsequent processing. The pressurized gas enters the condensation unit, and the temperature is lowered to a reasonable range according to the boiling points of different solvents. Some organic compounds are directly liquefied and recovered. The uncondensed exhaust gas enters the membrane separation unit and utilizes the difference in permeation rate of different gas molecules in the membrane material. Organic molecules preferentially pass through the membrane layer to form concentrated gas, while air components such as nitrogen and oxygen are intercepted and directly discharged. The concentrated gas is sent back to the inlet of the compressor and mixed with fresh exhaust gas before entering the circulation process again. The entire system forms a closed-loop system, and the emission concentration meets current environmental requirements.

The equipment adopts a modular design, with the compressor, condenser, membrane components, and control system all integrated on a steel base, which is assembled and debugged before leaving the factory. On site operation only requires connecting the power supply and gas circuit, and the installation period is calculated in days. The equipment has a small footprint and can be flexibly arranged according to the site conditions. When it needs to be relocated later, it can be lifted as a whole.

The device is mainly driven by electricity, does not rely on natural gas, has no combustion process, no open flame, and has good applicability in explosion-proof places. Not runningactivated charcoalWaiting for consumables to be replaced without generating hazardous waste, daily maintenance mainly focuses on cleaning the heat exchanger and checking the pressure difference of the membrane components. The recycled liquid solvent can be reused for production or external sales based on its purity.

Luoyang Wohong can match equipment specifications based on the exhaust gas parameters provided by customers, with processing air volumes ranging from tens to thousands of cubic meters per hour. It is recommended to complete exhaust gas testing before selecting, obtain concentration, air volume, and component data, and then determine the specific compression ratio, condensation temperature, and membrane component configuration plan.