Thread Content
For the company’s new project, it is necessary to install a purification device at the outlet of the breather valve of the toluene storage tank, using activated carbon for adsorption. However, the amount of hazardous waste generated is too large to be handled, so an ultraviolet photocatalytic oxidation device was chosen. Due to a lack of knowledge regarding this type of device, it is not clear how to design its prototype, nor how to calculate the hourly emission volume – these constitute the biggest challenges. I hope experts can provide some guidance. Thank you. Urgent! Urgent! Urgent!
Why not use adsorption-desorption in combination? Catalytic oxidation is not reliable
We are considering using activated carbon for adsorption, but too much waste activated carbon is generated, and the used activated carbon is classified as hazardous waste. If it is deemed hazardous waste, the company will come under close supervision by the environmental protection agency; therefore, the activated carbon adsorption process cannot be employed. Thank you.
Activated carbon fibers can be used instead; they facilitate adsorption, desorption, and regeneration, allowing for repeated use
Okay, thank you. I’m consulting with the environmental assessment agency to see if it’s feasible. I don’t quite understand this process.
For the exhaust gas emitted by such vent valves, the common treatment method is condensation and recovery – toluene is sent back to the storage tank through condensation. For photolysis, however, the concentration of this exhaust gas is too high, and the bond energy of the benzene ring is very high, making it impossible to carry out photolysis
Recently, our company has been researching ways to treat waste gas containing benzene. . . Theoretically, the removal rate calculated at present is around 96%. . Around 95.8%. . Running workshop tests. . . Send me a private message. . Perhaps we can help you solve the problem. .
Our family has a complete set of activated carbon fiber adsorption devices for recovering organic waste gases. The recovery rate is highly stable and of high performance. The payback period for investment is short; the costs can be recovered within one year. Those interested can discuss this in more detail.
Many examples of photocatalytic oxidation show that it’s not effective in practice, and many people end up being deceived; it is recommended to carry out condensation first followed by deep hydroxyl oxidation – we have the necessary equipment for this.
Catalytic decomposition particles can be used directly without the need for replacement; they perform well, and are most effective against benzene and aldehydes! You can give it a try :)