Organic tail gas treatment device, condensation recovery and film control

In organic waste gas treatment, condensation recovery can convert solvents into liquid form for reuse; however, when it comes to tailgas emissions, a single-stage condensation process is limited by the gas–liquid equilibrium, leaving residual organic compounds in the tailgas and making it difficult to consistently meet emission standards on its own. This problem is solved by combining condensation recovery with membrane separation.

Condensation recovery: The organic tail gas first enters the condensation unit. Through graded cooling, most of the organic matter is directly converted from gaseous to liquid, and the purity of the recovered solvent can reach more than 90%, which can be directly reused in production. This step completes the core work of resource recovery.

Membrane separation check: The condensed tail gas still contains a small amount of organic matter that cannot be liquefied, and this part of the gas enters the membrane separation unit. Taking advantage of the difference in the permeation rate between organic molecules and air molecules in the membrane material, VOCs preferentially permeate through the membrane layer to form concentrated gas, which is sent back to the front end of the condensation for recycling treatment; the untreated purified gas meets the discharge standard. This step solves the problem of condensation "not clean" and ensures that exhaust emissions meet environmental protection requirements.

The two cooperate to form a "first recovery, then check" processing chain. Condensation is responsible for taking back what can be collected, and the membrane is responsible for sending the confiscated clean back for circulation, and the purified gas meets the discharge standard. The overall recovery rate can reach more than 95%, and the emission concentration can meet the requirements of environmental protection.

The equipment is driven by electricity and does not consume natural gas.activated charcoalSuch as the replacement of consumables, do not produce hazardous waste. Purely physical separation, no open flame; suitable for explosion-proof environments in the chemical, pharmaceutical, and printing industries. The skid-mounted structure is assembled and debugged before leaving the factory, and the site can be put into operation only by connecting the power supply and gas circuit. PLC automatic control does not need special personnel on duty.

Suitable for high concentration, recovery value of organic tail gas, covering hydrocarbons, halogenated hydrocarbons, alcohols, esters, ketones and other common solvents. Before selecting equipment, it is recommended to first conduct a process condition assessment and match the equipment specifications based on concentration, composition, and airflow rate.