Gas separation membrane, which retains valuable components in exhaust gas

    VOCswaste gas treatmentTraditional thinking is nothing more than two:activated charcoaladsorption, orRTOBurning. Adsorption method to transfer organic matter from the gas phase to the solid phase, carbon saturation is dangerous waste, disposal costs are not low. The combustion method is more direct, the organic matter is burned into carbon dioxide and water, the solvent is gone, and the gas fee is paid.

Membrane separation takes another path: leaving valuable things in the exhaust gas behind.

How to stay?

    gas separation membraneAt its core is selective penetration. Different molecules run differently in the membrane material-VOCs molecules preferentially penetrate the membrane layer, and nitrogen and oxygen are blocked outside. The pressure difference is used as the driving force to separate according to the different rates of various gases through the membrane. Fast permeating gases are collected preferentially through the membrane, while slow permeating gases are retained on the other side of the membrane.

The permeation rate of VOCs through a polymer membrane is 10 to 100 times higher than that of air, which is the key factor enabling selective separation by the membrane. The concentration can be increased from 1% to 5-10%, and the purified gas directly meets the discharge standard.

What about after you stay?

Membrane separation itself does not directly recover the solvent, its task is "concentration". The concentrated high-concentration gas is condensed again, and the solvent is liquefied into a liquid to be recovered and directly returned to the production line. Membrane VOCs recovery technology, has been in the refining, petrochemical and other industries to achieve industrial application, can make the non-methane total hydrocarbon emission concentration stable standard.

Features

Normal temperature operation, no open flame, suitable for explosion-proof places. No activated carbon consumables, do not produce hazardous waste. Modular design, can be expanded in parallel when the processing capacity increases. It is suitable for VOCs waste gas with medium and high concentration and recovery value. First, do working condition detection and talk with data.